why catamaran vs single hull

Catamaran vs. Monohull: We Changed, Should You?

There are two schools of thought when it comes to monohull versus catamaran . We have done extensive cruising and lived aboard two monohulls and four catamarans over the past 25+ years . We experienced the good and the bad for both single hull and multihulls first hand. Quite honestly, the pluses for catamarans far outweigh the minuses. There are multiple benefits of catamarans. They are faster, more stable and spacious, and have shallower drafts allowing safer anchorage closer to shore. Being on a stable platform with no heeling cuts down on crew fatigue and seasickness leaving the crew more alert and in control of the vessel. Even novice sailors feel more confident on catamarans.

When we built our monohull Royal Salute in the early 90s, catamarans were not established and were looked upon with extreme suspicion by most cruisers, including ourselves. “Safety and the capsize” issue were always the first things to come up against sailing catamarans. It is a fact that monohulls can get rolled in heavy seas but will right themselves because of the heavy lead keel, and while crew and vessel will be battered, the roll is survivable.

However a catamaran once capsized, will remain upside down (jokingly referring to this state of the catamaran as “reaching its most stable position when upside down”). The inability of a catamaran to self-right was and still is a major bone of contention. However, what is not often discussed is that a monohull has about a 5,000 pound keel of lead that is constantly trying to drag the boat to the bottom of the ocean versus a catamaran that has no ballast and is in most cases with modern catamarans, unsinkable.

So the options are to either sail the world on a boat that, if it springs a leak, will sink like a stone or a vessel that cannot self-right in the event of a capsize but will not sink no matter what. So from a practical point of view, here are our observations over the last 25+ years of living aboard, on the advantages and disadvantages of a catamaran.

ADVANTAGES OF A CATAMARAN

1. speed equals safety.

The speed of a catamaran makes it possible to outrun bad weather. While catamarans do not point as high into the wind as a monohull (or if it does, it makes more leeway or slides sideways), it is about 20% faster than a monohull. This means that even if you sail upwind at a slightly wider angle to the wind than a monohull and have to cover more distance, you will still arrive at your destination long before a monohull.

A modern performance catamaran with daggerboards and good quality sails will point as high as a similar sized monohull. It will point the same as a comparable monohull and sail much faster and therefore arrive at an upwind position much sooner than a the monohull. It is important to note that most of the production catamarans on the market are under-powered and are equipped with standard smaller sails. In lighter breezes many of these designs perform poorly unless fitted with bigger headsails, a Code Zero and a square-top mainsail.

While we believe that more comfortable and safer in rough weather , we have to concede that when the weather gets really bad (60 knots of wind or more) we would personally prefer to be on a monohull from the standpoint of surviving. I would say that a monohull is preferable for serious offshore single-handed sailing because you can more easily hove-to in a monohull. We have been in some extreme weather on a number of catamarans and never really felt that we were in danger, although it takes some nifty seamanship.

A monohull could capsize in extreme weather or even roll in a storm, but they generally come back upright. A catamaran on the other hand, will not right itself. But the cat will generally stay afloat, offering a good place to survive while you wait out the storm or until help comes along. Well-designed modern catamarans are very hard to capsize though.

Having said all that, most catamarans can do 200 to 250 miles a day and with modern technology allowing one to pull down weather at will, there is no good reason why you should get caught in extreme weather. A faster boat is a safer boat as it will in many cases be able to outrun bad weather. With good weather routing information a catamaran can avoid most serious weather and, at worst, place itself in the most favorable position to avoid the brunt of a storm.

2. A Catamaran is a Stable, Safe Platform Underway

Catamarans have no ballast in the keels like monohulls do and therefor it relies on beam and buoyancy for stability. Typically cruising catamarans will have a beam to length ratio of roughly 50%, although many designs nowadays exceed the 50% rule of thumb. So, a 45-ft long catamaran will be about 22-ft wide, providing a very stable platform when sailing. Unlike catamarans, monohulls cannot overcome the rolling and pitching with their narrow beam and the lead ballast for stability.

This rolling and pitching makes the deck on a monohull very unsafe whereas on walking around on the deck of a catamaran while underway is far easier since the boat is much more stable, and it doesn’t heel. This makes sail changes and reefing much easier and a lot safer for the crew. Without the rolling and pitching motion, the danger of falling overboard on a catamaran is considerably less than on a monohull.

3. Crew Fatigue Reduces on a Catamaran

Because a catamaran does not heel over like a monohull, it offers far more comfort underway because the motion is mostly fore and aft pitching and very little beam-to-beam rolling. On all points of sail, a catamaran tracks upright and significantly reduces crew fatigue and seasickness. Seasickness is usually caused by things like anxiety, fatigue, hunger and cold, which all add to a sense of disorientation. This leads the crew to making bad decisions and seamanship errors that could be fatal to the crew and vessel. The more stable platform of the catamaran will hugely keep those issues at bay, making the crew more alert and energized.

Every action and chore including cooking is much easier on a catamaran when underway. It is much more pleasant to be on the deck level looking out rather than being stuck “down below.” It is also much nicer to sleep on a boat that doesn’t heel. I remember nights at sea in our monohull when I was rolling around in my bunk unless I was properly wedge in a little corner. That is simply not the case on catamarans.

All these factors ensure that your crew will not expend unnecessary energy to simply try and stay upright, onboard and safe on a long passage. Your crew on a catamaran will be well rested and alert and will be able to function well if a stressful situation arises.

4. Comfort at Anchor

Catamarans provide a wide platform and therefore offer lovely spaces to relax at anchor without the rolling motion that monohulls have a tendency to do in a swell. During our 15 years of cruising on a monohull, we have often had to leave anchorages that we really were not finished exploring because of a rolly, uncomfortable anchorage. Big rollers or swells coming into an anchorage can make conditions in an anchorage very uncomfortable and unsafe.

We were anchored off Funchal on the island of Madeira in our monohull Royal Salute once, when we were forced to leave our anchorage. The rolling became so bad, we were rolling from gunnel to gunnel. The anchorage became untenable to remain anchored, forcing us to go out to sea in foul weather in the middle of the night. This is an extreme case but believe me, we have left many an idyllic anchorage because of a rolling swell into the anchorage. Catamarans, on the other hand, do not roll from like monohulls have a tendency to do and are far more comfortable at anchor.

5. Anchor Bridal Setup

Catamarans are fitted with a bridle, attached to both bows and down to the anchor chain, resulting in a very stable position at anchor. What we found with our monohull was that because the bow acts as a sail (because of the high freeboard), the boat tended to sail at anchor in high winds. It sailed in one direction until the chain snatched and tacked over and sailed in the other direction, feeling like it might dislodge the anchor altogether. The catamaran on the other hand sits at anchor a lot more stable and doesn’t sail around as much.

6. Ease of Boarding on a Catamaran

Thank goodness we were much younger and more agile during our monohull days. Royal Salute and most monohulls of her generation or older, have high free-boards, making it quite a feat to get onto the boat from the dinghy. It was one of the most challenging things to do because unlike the more modern monohulls that have a scoop at the back, we had to climb up on the side of the boat to get on and off. We, of course rigged steps, etc. but it was always a hassle compared to the ease of getting on and off a catamaran from a dingy or from the water.

7. Shallow Draft Equals Better Anchorages

Catamarans have significantly shallower drafts than monohulls, allowing for safer anchorages closer to shore. Most catamarans in the 40-ft to 50-ft range draw between 3-ft to 4.5-ft, so they can anchor in places that a monohulls can not even consider. In the shallow waters of the Bahamas for example, the catamarans have a big advantage. We often anchor our own catamaran just a few feet away from a beach. It definitely allows one to be able to explore areas where the water is shallow without the fear of running aground.

The shallow draft also allows for emergency repairs in shallow water and even doing the bottom job when the tide goes out as we have done in places like Mtwapa Creek in Kenya, East Africa. The catamaran easily rests on her keels on the sand without help making it a breeze to do the “annual haul out” even in remote locations.

8. Dinghy Davits & Dinghy Size

All catamarans have a set of davits that make it very easy to raise and lower the dingy. Our monohull and most cruising monohulls do not have an efficient or easily accessible set of davits. This makes raising and lowering the dingy an elaborate production. Catamarans on the other hand, has davits systems easily accessible and some even have platforms to rest the dinghy on.

The lack of beam and difficulty of lifting the dinghy also limits the size and type of dingy that one can reasonably carry on a monohull. As we all know, the dingy is your transport to and from shore and diving or fishing spots, so the bigger and faster the dingy, the better off you are. A catamaran can carry both a heavier and bigger dinghy which makes the popular center consul dinghy so much more possible.

9. Interior Space and Comfort on a Catamaran

We sailed 32,000 NM on our 45-ft monohull, happy as clams, not realizing that sailing does not have to be done lying on your ear 24/7 while on passage or sitting knee-to-knee in the cockpit at anchor with your two other guests at the dinner table! One can liken sitting in a monohull cockpit to sitting in an empty Jacuzzi, you are always nice and close to the other folks.

Now that we are on our fourth catamaran, there are a few things that have become more evident to us than the incredible space and comfort of a catamaran, not only at anchor but also underway. The cockpit and living space in general are huge compared to a monohull, making for very comfortable and spacious living conditions. It feels more like you are at home, rather than just on a camping trip.

Knowing that one spends at least 90% of one’s cruising life at anchor, it’s important to have good open living space, which most modern cats nowadays offer. A lot of cats have walk around beds, lots of storage, every modern appliance including washer/dryer, etc. However, one has to fight the urge to fill the space if you want to keep the cat light and fast.

Sailing with guests onboard for extended periods of time, in close quarters can become claustrophobic but on a catamaran people are spread out and separated. With guests sleeping in one hull and the owners in another, catamarans offer much more privacy and separation. Some cats even have privacy doors that will close off the entire hull and has a separate entrance onto the deck, which really separates you from the guests completely.

There is very little heeling on a catamaran, so there is no need for hand grips and safety harnesses inside the boat. There is nothing better (and safer) than being able to walk from the cockpit into the living room (saloon) on one level or one step down at most. In a monohull, when heeling at a severe angle, you would have to claw your way from the companionway steps down to the living area, while fighting to stay upright, significantly tapping your energy.

Unless you hit extreme conditions, everything stays put on a catamaran reducing the anxiety before doing passages of having to stow and secure everything. This very issue makes a lot of cruisers reluctant to weigh anchor and explore more often. It is just too much effort to pack away all your stuff once comfortable in an anchorage!

One thing you will notice is that the stove on catamarans are not gimbaled like it is on monohulls and this should tell the story in itself. The stability and comfort on a catamaran is far superior. Cooking is easy and safer. I often open a nice cold beer, put it down to do something and forget about it only to find a warm beer later in the same place I left it. This is not something that happens on a monohull.     

10. Redundancy on a Catamaran

Unlike monohulls, catamarans have a lot of critical redundancies. That of course means two hulls to clean and anti-foul, double the engine maintenance, etc. but having two of the critical equipment like engines for instance, outweighs the downside.

With two engines, if one fails you still have adequate propulsion to go anywhere. If by some fluke the second engine also fails, you have a full set of spares to fix at least one of them. Our friends once hit a sleeping whale off Tanzania, and when it dove, it hit the prop, bending it. They limped into the narrow channel on the one engine but at least they could make it to a safe harbor where we surveyed and repaired their damage.

We often only use one engine when motoring while making passage in order to conserve our fuel. The one engine is totally capable of moving the boat along at a good speed unless you are in heavy seas and you may need more power. Other than that we only use two engines to dock or maneuver the boat in close quarters.

Because there are two engines there are also two independent charging systems via the alternator on each engine. If one alternator goes out, there is still another complete charging system. There are two rudders and if one fails or falls off (as has happened to our friends on a monohull off Columbia, where they almost lost their boat) you have a second rudder that is completely capable of steering the boat by itself indefinitely. That holds true for several things on a catamaran!     

11. Maneuverability

The engines are spaced far apart on a catamaran and it makes maneuvering much easier and more precise than monohulls, unless the monohull has a bow thruster. We did not have a bow thruster (not many monohulls do) and had to rely on prop-walk and using prop wash on the rudder. A modern catamaran can do a 360 turn on her own axis. A monohull cannot do this and have a bigger turning circle. However, a monohull under sail is much more maneuverable and certainly will tack a lot faster than a catamaran. The ease in maneuverability under engine on a catamaran in close quarters specifically, is vastly superior comparatively.

12. Rigging

Because of the beam on a catamaran the spinnaker pole has become unnecessary equipment. Hallelujah, I say. That pole on our monohull was a pain the behind and I always hated having to use it. On a catamaran, one can fly an asymmetrical cruising chute or spinnaker, using the bows to tack the clew or run a guy through a block so it is very much simplified, easier and safer.We also sail wing-on-wing with twin headsails when we sail downwind. We use our furling jib and furling Code Zero. It is as easy as one, two, three.

DISADVANTAGES OF A CATAMARAN

1. bridgedeck slamming.

One advantage most monohulls do have when underway is that they don’t slam. Catamarans with a low bridgedeck clearance can experience significant slamming in confused seas sailing upwind. This slamming can be quite disconcerting when you first experience it as we did on a Shuttleworth 44 design, our first ever catamaran experience, 20+ years ago. At times, it felt as though the boat was falling apart. Of course the boat was fine but nevertheless, the stress on the crew from the constant noise and discomfort was significant.

Monohulls don’t have a bridgedeck which means no slamming and are therefore a bit more comfortable than l ow bridgedeck catamarans when beating into severe confused conditions or “washing machine” conditions as we call it. Modern catamarans mostly have better bridgedeck clearance and the slamming is significantly less. However, not all cats have a good clear tunnel under the bridgedeck. Some manufacturers build beds into the bridge deck in order to make more space in the chest of the catamaran where the slamming occurs. These protuberances into the bridgedeck tunnel will likely increase slamming. So be mindful of that when selecting a catamaran. We currently own a Bali 5.4 and the bridgedeck clearance on this boat is more than adequate and the tunnel is clear. We therefor experience very little slamming compared to our Prout 45 that we previously owned (picture of sister ship below) with a much lower bridgedeck.

We Explain Bridgedeck Clearance

In the pictures below, the Bali 5.4 has very good clearance from the water to the bridgedeck and has a nice clean tunnel versus the very low bridgedeck of the Sunreef 50. 

2. Sailing Downwind

Monohull spreaders are set at 90 degrees to the mast whereas a catamaran has to have backswept spreaders. The reason is that, on a monohull, there is a backstay and using this, plus the intermediates you can get a nice pre-bend in the mast (the pre-bend is to flatten out the main sail and allow for better performance).

On a catamaran with no back stay, you need to use the back swept spreaders and the diamonds to pre-bend the mast. The reason I point this out is because on a catamaran, if you want to broad reach or run, the mainsail cannot be let out all the way because the backswept spreader tips could punch holes in the fabric.

On a monohull, the spreaders are at 90 degrees so you can let the main and the boom out much further which is, of course, much more effective. This is one of the reasons it is better to broad reach and tack downwind on a catamaran.

Whether a monohull or multihull, sailing dead downwind doesn’t usually make great VMG. Therefor a regular cruising cat, much like a monohull, needs a lot of sail area and has to sail deep downwind if it is to achieve a decent speed made good (VMG). This video demonstrates how we achieve this by sailing wing-on-wing downwind.

It is more difficult to find a dock either as a transient or a permanent slip for a catamaran in general because of the wide beam. But this is changing fast and will soon not be too much of an issue. In the USA dockage is charged by the length of the boat in feet, so there is no disadvantage there but, in some places, (the Mediterranean for example), dockage is charged at length times one and a half because of the additional beam.

Since the catamaran is stable at anchor, we mostly anchor out. We have more privacy, a better breeze and usually a stunning view.We have a nice dinghy with a good outboard engine and is big and comfortable enough to get to shore fast and together with the modern conveniences like the generator, watermaker and washer/dryer, docking becomes a non-issue.

It is definitely more difficult to find a travel lift with enough beam for a catamaran for a haulout, while, for a monohull, there are absolutely no problems anywhere. The wide beam of cats also greatly limits the number of shipyards that can haul them out. Most catamarans over 40-ft must be hauled out with a 50-ton travel lift. This not only increases the cost of the haulout, but greatly limits the choice of the shipyards for repairs and maintenance. With limited choice, prices are high for shipyard services.

Catamarans do tend to have a lot more windage than monohulls. This can be an issue especially when maneuvering in close quarters with a strong wind. But I have found that, provided the engines are powerful enough for the size of catamaran, that twin engines negate this problem. Also, many modern large catamarans now have a bow thruster fitted. It is super easy to dock.

The cost of getting into a catamaran is much higher than that of monohulls. That could put a serious dent in your cruising kitty or require you to put your dream on hold a little longer. Pre-owned monohulls on the other hand are very cheap to buy comparatively, because the supply presently far outweighs the demand.

Catamarans are in high demand and they typically hold their value much better and longer and the trend is now heavily in favor of the catamaran market. When prospective buyers contact us for catamarans under $250,000 the choices are very limited and catamarans under $100,000 is near impossible to buy. In this case, your best bet is to go with a monohull unless you go with much older boats like the Prouts or the less expensive Geminis.

Our Own Catamarans & Monohulls

FYI: Royal Salute , a Bruce Roberts 45 monohull, was the first boat we owned and sailed approx. 30,000NM on. Mythral, a Seafarer 30, was our “toy boat” while we were waiting for our catamaran to be built. Even though this classic little monohull sailed around the world, it didn’t have much in modern conveniences like running water. Siyaya was an Island Spirit 40 catamaran that we sailed from Cape Town to Florida on and then taught live-aboard sailing classes for several years. Zuri I was a Prout 45, a beautifully crafted catamaran but by today’s standards is considered old technology. Our Lagoon 450 SporTop ( Zuri II ) is a fantastic live-aboard catamaran. We lived and taught aboard her for three years but sold her last year and we currently own a Bali 5.4 ( Zuri III or Z3 as we call her now). Read about our various boats .

CONCLUSION: CATAMARAN vs MONOHULL

We were dyed in the wool monohull sailors for 15+ years. We loved the pretty lines of monohulls, the sailing ability and what we believed at the time to be much safer vessels. However, now that we have been avid catamaran enthusiasts, we simply can never go back to monohulls. Catamarans have come of age and with modern technology have overcome most objections that sailors of old had against them. They are well designed and built, are safe, and we simply love that they sail fast and upright. There is not a whole lot to dislike about a catamaran when you live aboard. We have weighed all the pros and cons of catamarans and found that the pros far exceed the cons. We made the change to a catamaran and do not regret it one bit!

We hope that this article will clear things up for all the prospective catamaran owners out there.

Contact us if you have any questions regarding catamarans, Fractional Yacht Ownership or our Charter Management Programs .

Estelle Cockcroft

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4 thoughts on “Catamaran vs. Monohull: We Changed, Should You?”

I read that the engineering on the catamarans were improved over the years. Whats the oldest year would you recommend designwise?

Scott, my apologies for the late reply. We’ve been traveling in Africa. Anyway, catamarans have come a long way and improvements in technology is happening at lightning speed. I reckon that even the older model catamarans are good. It depends on what your needs are. If you want something a little better performance wise, I would go for something no older than 15 years.

After buying a catamaran what is the difference in expense of a catamaran vs a monohull. Many articles state that not only the initial cost of a catamaran is more it the operating cost as well.

Hi Todd, it is more expensive. The annual dockage and haul out as well as maintenance will be more expensive. You obviously have two engines to maintain and various other pieces of equipment to service in both hulls. While there is more equipment there is also more redundancy and of course you have the comfort factor. So, depending on your situation, it’s probably worth it.

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Catamaran vs Monohull: Pros, Cons & Main Differences

By: B.J. Porter Editor

The choice of catamaran vs monohull ultimately comes down to preference. What’s critical for one buyer may mean little to another. If your partner refuses to set foot on a boat which heels, that’s a deal-breaker for a monohull. But if you’re passionate about classic looks and styling, your quest for beauty may override other considerations and rule out catamarans.

We can’t tell you whether a catamaran or a monohull is right for you. But we can help you with the pros and cons of each for your search.

The Strengths and Pros

No matter your choice of monohull or catamaran, there are safe, comfortable, and excellent sailing boats of both types. Neither has an exclusive lock on any strength, and both sail safely and comfortably. But there’s a different emphasis on how they do it. No matter what you are trying to do – sail fast, cruise the world, or just host a crowd at the dock, there are monohulls and catamarans that can work for any requirement.

Catamaran advantages

Space and comfort: Two hulls and a wide beam make a very stable platform with lots of volume in the saloon and cockpit. Most living space is above the waterline, with wonderful light and airflow. Cabins in the hulls offer better privacy and isolation, usually with standing headroom.

Straight line speed: Most catamarans are faster in straight-line sailing speed (1) that similar sized or even longer monohulls. Without a lead keel, they’re lighter, so more driving force from the sails converts to speed, and narrower hull forms may have less drag than wide hulls with deep keels. Some heavier cruising catamarans may not be faster, especially if they keep rig size small for ease of handling.

Stability : The beam of two hulls with a bridge deck leads to much higher stability and resistance to roll (2). Waves in an anchorage that induce violent roll in a monohull may make a catamaran bounce or bob. Under sail, catamarans do not heel appreciably even when powered up.

Twin engines. : With one engine in forward and balanced in reverse, most catamarans can spin in a circle in place and make sharp adjustments to the boat’s direction. If you have an engine failure, you also have a second engine, giving a safety edge when you can’t sail. 

Monohull advantages

Upwind sailing performance: While catamarans have the edge at straight-line speed, monohulls sail closer to the wind. When you’re racing or you have to sail upwind to get to the next island, this can get you there faster.

Sailing feel and responsiveness : The “feel” of sailing a monohull is much better. With a single hull, you’ll feel wind pressure and trim adjustments immediately for a more responsive helm and a better ability to sail to the wind.

Maneuvering under sail: Monohulls are quite nimble tacking and turning under sail, and there’s less risk of slow or missed tacks.

Righting Moment: The primary offshore safety argument for monohulls is their ability to right when capsized. The heavy keel keeps the boat deck up when sailing, and most monohulls will come back upright even after a complete capsize.

Cargo and Loading: A higher displacement boat with thousands of pounds of lead hung from the bottom isn’t going to be as affected by loading as a relatively light multihull.

Aesthetics: This is subjective, as many catamaran enthusiasts love how they look. Classic sailboat styling, with swept sleek looks, springy sheer lines, and all the “right” proportions are more common on monohulls.

Also read: The 5 Best Electric Anchor Winches

Weaknesses and Cons

Like strengths, weaknesses are relative; just because one class has a strength doesn’t mean the other doesn’t. There are spacious monohulls and beautiful catamarans, just like there are cramped catamarans and unattractive monohulls. The differences have to be highlighted relative to each other, and the weaknesses of one are most apparent compared to the strengths of the other.

Catamaran Cons

Upwind performance: Cats don’t sail as close to the wind, but they make up for it by sailing faster off the wind. You’ll sail a less direct course upwind. Even if you get in at the same time, you’ll have to sail farther.

Less responsive sailing: Two hulls with two rudders and a very broad platform reduce the helm feel when sailing, cutting responsiveness sailing in shifting wind and wave conditions. It also makes tacking slower.

No-flip zone: It is very difficult, but not impossible, to flip a large catamaran (3). But if a catamaran capsizes, it will not flip back over by itself.

Large in marina/close quarters: You have two problems in marinas. Beamy cats are tough to maneuver in tight spaces because they’re big and visibility is tough over the hulls. And many marinas charge extra because the wide beam extends into the next slip. The good news is that twin engines make tight maneuvering easier.

Price point: Catamarans are more difficult to build and need more materials. This is directly reflected in the cost of the boats.

Monohull Cons

They are heavier: Every large monohull needs a keel for stability (4). They can not sail or stay upright without thousands of pounds of ballast, and this makes them heavier and slows them down. Tiny monohulls can use a centerboard or daggerboard for stability, but most boats big enough to sleep on need ballast.

Darker interiors : Most monohull living space is lower in the boat, where you can’t put enormous windows for light and circulation. It’s very hard to get space as bright and airy as catamaran saloons.

Less living space: With one hull and no bridge deck saloon, most monohulls feel cramped compared to spacious catamarans.

More prone to rolling motions : Only one hull makes monohulls susceptible to rolling in waves, and the movement can be quite uncomfortable.

Heeling: Tipping is just part of sailing monohulls upwind and is unavoidable. It can be reduced on some other points of sail, but not eliminated. Many people, especially non-sailors and new sailors, find this movement uncomfortable or distressing.

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Catamaran vs Monohull: The Great Sailboat Debate

16th jun 2023 by john burnham.

Do you love the natural sounds of water sliding past the boat’s hull and a breeze blowing across your rigging and sails while gliding ahead powered only by the force of the wind? If yes, you are well-suited to spending plenty of time on a sailboat, like so many generations of boat people before you. 

But do you take your lead from the Egyptians who rigged sails on their boats built of reeds along the Nile River or follow the path of the Polynesians, who used an outrigger for extra stability and sailed from one Pacific island to the next in the earliest catamarans?

The question of which is better for sailing, one hull or two, has been a matter of debate over thousands of years. Today, let’s explore these two basic types of sailboat, and while we may not settle the argument once and for all, hopefully in the process you will begin to discover which option is better for you.

What Are the Differences Between Catamaran and Monohull Boats?

The monohull and the catamaran (often referred to as “cat”) are the two most common categories of sailboats, and of the two, the monohull far outnumbers the catamaran in popularity due to its simplicity and sturdiness. Advocates of the catamaran, however, are typically even more convinced than monohull sailors that their boats are best due to performance potential and overall spaciousness.  

What are catamaran-style boats?

Catamarans are easily identified by their two-hull design. Two hulls sit side by side with an interconnecting deck or structural beams across the bap in the middle. Catamarans have been around since Pacific Islanders and other Austronesian people sailed them centuries ago, and they continue to gain popularity in a wide range of designs both as high-performance racing boats and ocean-cruising designs.

Although not part of this debate, a third sailboat type comparable to a catamaran is a trimaran. Trimaran sailboats are constructed similarly to catamarans but have three parallel hulls rather than two. Collectively, catamarans and trimarans are referred to as multihulls, and sailors of both types often refer lightheartedly to monohulls as “monomarans.”

What are monohull-style boats?

Monohull sailboats are the most common boat type because they feature a single hull, typically with a single mast and two sails. Rather than maintaining stability with a second hull creating a wider beam, monohull boats usually carry lead or other heavy ballast in their keel, or are stabilized by human weight as their crews lean out to counter the force of the wind. Monohulls can also be excellent racers and cruisers, depending on their size, volume, sail area, and displacement or weight.

Where Catamarans and Monohulls Excel 

Each type of boat has its advantages, depending on what the owner wants in a boat. Here are the main advantages of each type.

Catamaran advantages

• More space .  Catamarans have greater beam for a given length, which provides more space for the crew on a daysailer and larger living quarters on cruising designs, which are often laid out with berths in each hull and living quarters across the bridgedeck between hulls.

• Faster hull . If they are light enough, the sleeker shape and reduced wetted surface of two narrow, shallow hulls can produce quicker straight-line sailing speed than a single, deeper and wider hull.

• Comfort and stability . Two hulls provide better initial stability and generally heel less than monohulls, especially in light- or medium-strength winds and waves.

Monohull advantages

• Upwind sailing . When sailing against the wind, monohulls often sail at a closer angle to the wind and arrive more quickly at their destination.

• Easier motion . Heavier monohulls often have a slower, gentler motion in waves than a lighter catamaran. 

• Load carrying capability . A monohull’s performance is reduced less than a catamaran’s when the boat is loaded heavily with cargo or crew.  

• Righting characteristics . Larger monohulls have weighted keels that provide increased resistance to a capsize when the boat is heeled far over by wind or a wave and if capsized will return the boat to an upright position.

Catamaran vs. Monohull Sailing Speed

There are several reasons why a catamaran is often faster than a monohull boat. These include the fact that most catamaran hulls have less water resistance than monohulls, they are often lighter, and they can be more easily driven by a relatively small sailplan. At similar lengths, a catamaran can be dramatically faster than a monohull under similar sea conditions. However, weight is the enemy of a catamaran’s speed; a heavy or heavily loaded catamaran may be much slower than a lightweight monohull.

Catamaran vs. monohull power

A monohull under auxiliary power may be faster than a catamaran in certain conditions, like powering against a strong wind. In other wind and wave conditions, the catamaran is often faster. Also, with an engines on each hull, the cat is often much more maneuverable in close quarters or at the marina. While it may seem counter-intuitive, turning and controlling the boat is often less challenging than when sailing a monohull boat with the typical single engine. Monohull boats require more finesse when in tight quarters like berthing in a marina.

Catamaran vs. Monohull Efficiency

A sleek monohull may sail against the wind super efficiently, pointing close to the wind and making an excellent speed. However, the power-to-weight ratio of the catamaran allows it to make good use of whatever wind it has. Some fast, light catamarans can travel at speeds equal to or faster than the wind, something very few monohulls can achieve. When the wave action increases and you start sailing into the wind, the catamaran may lose its advantage, and in strong winds, the greater windage of the wide catamaran may have a pronounced slow-down effect compared to the sleeker monohull.  

Catamaran vs. Monohull Stability

Despite not having a weighted keel, a catamaran design is able to avoid heeling over in strong winds or bad weather due to its greater width or beam. As a result, the multihull also tends to be more stable at anchor and any time in calmer seas. However, if the winds are strong and the waves are large, a monohull, with its keel weight and ability to sail against the wind while controlling the sails, is sometimes the steadier of the two types. While a monohull with weighted keel can be knocked down by strong gusts of wind, it will only capsize in extremely large waves. Likewise, a cruising catamaran can only capsize in large ocean waves, unless it is a fast, lightweight catamaran, that can more easily tip over in gusty winds and waves.

Catamaran vs. Monohull Safety

Power catamarans and power monohulls are relatively comparable in terms of safety. But depending on the size of the mast and sails, the weight of the boat, and the wind and wave conditions experienced, many sailors believe that a monohull configuration is safer than a catamaran for a sailboat. That’s mainly because while a monohull will initially heel over further in a strong gust of wind, the weight of its keel provides increasing stability as described above and if completely capsized, the keel typically helps the boat self rescue.

It should be clarified that many sailing catamaran designs are conservatively configured and difficult to capsize except in extreme ocean wave conditions—and the same can be said for larger power catamarans. 

In terms of ultimate safety in the event of a capsize, however, the catamaran is considered safer because even should it turn once upside down, even if damaged, the catamaran with its two hulls and minimal ballast typically remains buoyant and provides a safer configuration in which to await rescue. By contrast, if a monohull’s hatches and port windows suffer damage in a knockdown, the boat can more quickly take on water and, weighed down by its keel or other ballast, be more difficult to keep afloat in extreme conditions.

Photo credit: Fountaine Pajot

Monohull vs. Catamaran Maintenance

Depending on size, age, and type of hull construction, maintenance costs will vary, but when comparing two fiberglass sailboats of similar length, the catamaran typically costs more to maintain. That’s because there are two hulls to care for, two engines, connecting structures that align the two hulls, and an overall larger boat due to the catamaran’s greater beam. Hauling and launching a catamaran can be more expensive at many boatyards, as well.

However, smaller catamarans of about 20 feet in length or less are often more comparable and sometimes cheaper to maintain than a similar length monohull. That’s because cats are often lighter and suitable for keeping on a trailer rather than in a slip or on a mooring.

Catamaran vs. Monohull Cost

Compared to similar length monohulls, a catamaran will likely cost more than a monohull boat. That’s mainly because when you purchase a 40-foot catamaran, you are buying two hulls and two engines, but you are also buying a bigger boat that typically has much more volume. In the case of a 40-footer, you end up with a boat that has a large saloon and three or four private cabins, whereas in the monohull, the saloon is smaller and you’ll have three smaller sleeping cabins. Annual maintenance will also be greater, as described above.  

Among smaller catamarans and monohulls, pricing will vary, and a lightweight beach cat may be less expensive than a heavier monohull keelboat of similar length.

Catamaran vs. Monohull, Pros and Cons

Depending on a variety of factors, there are plenty of catamaran and monohull pros and cons. These are some to keep in mind when comparing the two boat types.

Catamaran pros

• Comfort . On a cruising designed catamaran, two hulls with a wide beam create a stable and comfortable living environment with open spaces and plenty of standing room.

• Speed . Smaller, lighter catamarans are speed champions, especially in a moderate wind and modest waves. Cruising cats are often fast when sailing at reaching angles.

• Maneuverability . When equipped with two engines, a catamaran is highly maneuverable under power.

Monohull pros

• Upwind sailing . Although catamarans are often faster when sailing in a straight line, monohulls typically perform better against the wind.

• Self-righting . Except for unballasted monohulls that rely on crew weight for stability, the ballasted keel of a monohull prevents capsizing in most circumstances and the keel makes the boat self-righting.

• Maneuvering under sail . Monohulls turn more easily due to their shape, maneuvering in close quarters or tacking when sailing against the wind.

Catamaran cons

• Lack of feel when steering . Except in lighter, more performance-oriented catamarans, the broad platform with two rudders and two hulls sometimes isolates the sailor and provides little feedback through the helm when under sail.

• Sailing against the wind . Upwind sailing is generally not a catamaran’s best point of sail, but its straight-line speed can be such that it may arrive quickly at its destination, even though you will have traveled much farther than in a monohull.

• Pricing . Catamarans are typically more expensive than monohull boats due to their two hulls and other required build components and complexity.

• Not self-righting . Thanks to its wide beam and two-hull design, a catamaran is more difficult to flip, but it is not designed to right itself except for small beach cats where the crew can use their weight to re-right the boat.

Monohull cons

• Weight . Most monohulls have thousands of pounds of weight in the keel for ballast that is vital to its stability but can degrade performance.

• Wave motions .   Monohull boats are much more susceptible to rolling wave motions.

• Cabin . With the monohull cruising design, you'll typically find a darker interior with smaller port windows and fewer space options.

• Heeling effect . Monohulls will heel over in a moderate wind, which is normal but often uncomfortable for newer sailors.

Written By: John Burnham

John Burnham is a marine ​editor and writer with ​decades of journalism experience as ​Chief Editor of​ boats.com,​ Sailing World, Cruising World, and ​other boating websites. As a competitive sailor, he has led teams to world and national titles in the International One-Design, Shields, and other classes. Based in Newport, Rhode Island, John is a​ PCC leadership coach, a member of the ​America’s Cup Hall of Fame Selection Committee​, and a ​past board member of Sail America and US Sailing. For more, see  johnsburnham.com .

More from: John Burnham

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Catamaran Vs. Monohull: Which Is Better?

When considering sailboats for cruising or liveaboard purposes, two primary options often come to mind: catamarans vs. monohulls. We know, because we’ve been there!

Having sailed full-time for four years on a monohull before swapping to a catamaran with the impending arrival of baby, we really understand the whole catamaran vs. monohull debate, and it isn’t clear cut.

Both types of vessels have their own unique characteristics, advantages, and considerations. Understanding the differences between catamarans and monohulls can help individuals make an informed decision based on their specific needs and preferences.

Catamarans are known for their spaciousness, stability, and comfort. With their twin-hull design and wide beam, catamarans offer generous living spaces, expansive decks, and increased privacy with separate hulls.

The stability provided by the twin hulls creates a smoother ride, reduced rolling motion, and enhanced comfort in a variety of sea conditions. Catamarans also tend to have better maneuverability, fuel efficiency, and shallow draft capabilities.

On the other hand, monohulls are characterized by their sailing performance and versatility. Their single-hull design, deep keel, and ballast provide excellent upwind performance and responsiveness.

Monohulls offer a traditional sailing experience with the sensation of heeling and a closer connection to the water.

They are often more cost-effective in terms of initial purchase price and maintenance expenses. Monohulls also provide more options for docking in marinas with narrower slips.

Choosing between a catamaran and a monohull ultimately depends on individual preferences, intended use, and priorities.

Factors to consider include space requirements, stability preferences, sailing performance, budget, cruising plans, and personal comfort levels. Spending time on both types of boats and seeking advice from experienced sailors can help in making a well-informed decision.

In the following sections, we will delve deeper into various aspects of catamarans and monohulls, exploring their advantages and considerations, including stability, speed, cost, maintenance, maneuverability, and more.

By examining these factors, individuals can gain a comprehensive understanding of which type of sailboat may be more suitable for their specific needs and aspirations.

As an Amazon Associate, we earn from qualifying purchases. We also earn from other affiliate programs. This means we may receive a small commission on products purchased through our links at no extra cost to you.

Table of Contents

Which is better catamaran vs. monohull, the advantages of catamarans, the advantages of monohulls, the disadvantages of catamarans, the disadvantages of monohulls, are monohulls safer than catamarans, maintenance, ability to maneuver.

• Fuel Efficiency

Which Is Better In Rough Seas?

• Which makes a better liveaboard Sailboat?

There are lots of advantages to both catamarans and monohulls. Both can be excellent sailing or power vessels and suit various different needs. There is always a big debate among sailors about which is actually better and honestly, we don’t have the answers!

There are so many plus and minus points for each that it’s hard to come to a logical conclusion without knowing a certain sailor’s needs first.

What advantages does one have over the other? Let’s explore that now to help you decide which one is right for your individual needs.

Catamarans offer several advantages that make them popular choices for various marine applications.

One key advantage is their superior stability. The two parallel hulls provide a wide base, which distributes the weight evenly and reduces the likelihood of tipping or rolling. This stability is especially beneficial in rough seas, making catamarans a preferred choice for cruising, offshore sailing, and passenger transportation.

Another advantage of catamarans is their speed performance. The twin hulls reduce drag and increase buoyancy, allowing them to achieve higher speeds with less power.

Catamarans are often faster than monohull boats of similar size, making them popular for racing, chartering, and personal use. The speed advantage of catamarans can be particularly appealing for those who enjoy thrilling water sports or need to reach their destinations quickly.

Catamarans are also known for their fuel efficiency. The design of catamarans minimizes drag and weight, enabling them to achieve higher speeds with less power and fuel consumption compared to monohull boats.

This advantage becomes especially significant during long-distance cruising, where fuel costs can be substantial. The fuel efficiency of catamarans not only saves money but also contributes to a more sustainable and environmentally friendly boating experience.

In addition to stability, speed, and fuel efficiency, catamarans offer other advantages as well. Their wide beam provides ample deck space, offering more room for socializing, entertaining, and enjoying outdoor activities.

Catamarans often feature spacious cabins, making them comfortable for extended periods on the water, whether for leisurely cruising or living aboard. The dual hulls also provide increased buoyancy, allowing for shallower drafts and access to more secluded anchorages and cruising grounds.

Furthermore, catamarans generally have shallower keels compared to monohulls, which allows them to navigate in shallower waters and access remote areas that might be inaccessible to deeper-draft vessels . This versatility opens up a broader range of exploration possibilities for catamaran owners.

Overall, the advantages of catamarans, including stability, speed, fuel efficiency, spaciousness, and versatility, make them attractive options for a variety of boating enthusiasts.

Whether for leisurely cruising, racing, chartering, or living aboard, catamarans offer a unique combination of features that enhance the boating experience.

Monohull boats offer several advantages that make them popular among sailors.

One of the key advantages is their excellent seaworthiness, particularly in challenging conditions. The deep, V-shaped hulls of monohulls provide stability and a smoother ride through waves and choppy waters.

This design allows monohulls to cut through the water efficiently, making them well-suited for offshore sailing and bluewater cruising.

When out in huge waves during an unexpected storm I found it hard to imagine how a catamaran would cope compared to our heavy bluewater monohull that just plowed through the waves as though they were butter.

Another advantage of monohulls is their superior upwind performance. The single hull design allows them to tack more effectively and maintain a higher pointing ability, making them ideal for sailors who frequently navigate against the wind. This advantage is particularly important for racing sailors and those who enjoy exploring areas where upwind sailing is common.

Monohull boats are typically more maneuverable than catamarans. The single hull allows for sharper turns and greater agility, which can be advantageous in tight spaces, marinas, or when docking.

The ability to maneuver easily makes monohulls more versatile in navigating narrow channels, entering small harbors, or handling in confined areas.

Additionally, monohulls offer a wide availability and variety of models, sizes, and configurations. They have been the traditional and widely available choice in the boating industry for a long time. This abundance of options allows boaters to select a monohull that suits their specific preferences, needs, and budget.

Monohull boats also often have a lower initial cost compared to catamarans of similar size and quality. The construction and design of a monohull are typically simpler, resulting in a more affordable purchase price.

This cost advantage can be significant for individuals or families entering the boating world on a limited budget.

Finally, monohull boats are generally easier to dock and berth in standard marina slips. Their single hull design allows for straightforward docking procedures and fitting into narrower slips designed for monohulls.

This advantage simplifies the process for boaters who frequently visit marinas or require regular docking facilities.

It’s important to note that the choice between a monohull and a catamaran ultimately depends on individual preferences, intended use, and specific requirements. Both types of vessels have their unique advantages and considerations, and it’s crucial to carefully evaluate these factors when selecting a boat that best suits your needs.

Catamarans, despite their advantages, also have some disadvantages that should be taken into consideration.

One notable disadvantage is the cost. Catamarans are generally more expensive than comparable monohull boats. The construction, materials, and design complexity of catamarans contribute to their higher price tag.

Additionally, maintenance, docking fees, and insurance costs can be higher due to the larger size and wider beam of catamarans. We’re only just starting to find out just how much more they cost, and it isn’t insignificant!

Another disadvantage of catamarans is the limited availability of berthing options. The wider beam of catamarans can pose challenges when it comes to finding suitable berths in marinas. Many marina slips are designed to accommodate monohull boats and may not have sufficient space for catamarans.

This limitation may require catamaran owners to seek specialized marinas or rely more frequently on anchoring.

The wider beam of catamarans can make maneuvering more challenging, especially in tight spaces, narrow channels, or crowded marinas. The increased width may require additional care and skill when docking or navigating in confined areas. Catamarans may also require specialized docking arrangements or wider slips to accommodate their size.

In heavy weather conditions, catamarans may experience some performance limitations. While they generally provide excellent stability, their wider beam can make them more susceptible to windage and slamming.

The larger surface area exposed to the wind can result in more resistance and difficulties maintaining course in strong winds. Skillful handling and careful sail management are necessary to optimize performance in challenging weather conditions.

Additionally, some sailors enjoy the heeling sensation experienced on monohulls when sailing close to the wind. Catamarans, with their stable platform, lack this sensation since they do not heel to the same degree.

This absence of heeling can be seen as a disadvantage for sailors who enjoy the dynamic experience of monohull sailing.

Monohull boats also have their own unique set of disadvantages.

One of the main disadvantages is their stability compared to catamarans. Monohulls typically have a narrower beam and a single hull, which can make them less stable in certain conditions, particularly in rough seas.

This may result in more rolling and pitching motions, which can be uncomfortable for some passengers.

Another disadvantage of monohulls is their potential for heeling. When sailing close to the wind, monohulls have a tendency to heel or lean to one side. While this is a characteristic appreciated by many sailors, it can be a disadvantage for those who prefer a more stable and level sailing experience.

Monohulls also tend to have limitations when it comes to living space and interior layout. The narrow beam of monohulls can result in smaller cabins and reduced interior space compared to catamarans. This can be a consideration for individuals or families looking for more spacious accommodations on their boat.

Additionally, monohull boats may have more limited access to shallow or restricted areas due to their deeper draft. The single keel design of monohulls often requires a deeper depth requirement, which can limit their ability to explore certain cruising grounds or navigate shallow waterways.

Lastly, monohull boats generally have a lower initial stability when at rest compared to catamarans. This means that while they may have better stability underway, monohulls can feel less stable and more susceptible to rolling when anchored or at the dock.

This may require additional measures such as stabilizers or careful weight distribution to enhance stability at rest.

Comparing Catamarans Vs. Monohulls

We’ve compared some of the most important factors to consider when choosing a boat.

Ultimately, I don’t think either a monohull or a catamaran is superior to the other, but simply superior to the individual sailors’ needs. Before you decide which is right for you it’s a good idea to spend some time on both and work out what your priorities are when it comes to choosing a vessel.

Hopefully these comparisons will help a little!

The safety of monohulls vs. catamarans is a topic that can vary depending on several factors. It is important to note that both types of vessels have their own safety considerations, and the overall safety can depend on various factors, including design, construction, maintenance, and the skill of the captain and crew.

One aspect to consider is stability. Catamarans generally offer better initial stability due to their wide beam and twin hulls.

This stability can provide a more stable platform for passengers and crew, reducing the likelihood of rolling or heeling in rough seas. However, it’s important to note that catamarans can still capsize if pushed beyond their design limits or operated improperly.

Monohulls, on the other hand, have a narrower beam and a single hull, which can result in a higher tendency to heel or roll. However, monohulls are designed to recover from heeling due to their deep keel and ballast system.

They generally have a higher risk of capsizing compared to catamarans but will right themselves if this happens. This is a big thing to consider. Do you want a boat that is less likely to capsize but will be far more catastrophic if it does, or a boat that is designed to capsize and then right itself again?

Seaworthiness is another consideration. Both monohulls and catamarans can be designed and built to be seaworthy.

The quality of construction, design integrity, and adherence to safety standards play a significant role in the seaworthiness of any vessel. A well-maintained and properly equipped boat, regardless of its type, can handle a wide range of sea conditions safely.

Another aspect to evaluate is motion comfort. This can be subjective and may vary depending on individual preferences.

Some people may find the gentle rocking motion of a monohull more comfortable, while others may prefer the stability and reduced motion of a catamaran. It’s essential to consider personal comfort levels and any potential motion-related concerns when choosing a boat.

Lastly, it’s important to emphasize that the safety of any vessel depends on factors beyond the boat itself, such as the skill and experience of the captain and crew, adherence to safety protocols, and proper maintenance.

Regular inspections, safety equipment, and knowledge of emergency procedures are crucial for ensuring safety on any type of vessel.

In conclusion, the safety of monohulls versus catamarans is not a straightforward comparison. Both types of boats can be safe when used appropriately and in accordance with good seamanship practices.

It’s essential to consider the specific design characteristics, maintenance standards, and individual preferences when assessing the safety of a particular vessel.

When comparing the stability of catamarans vs. monohulls, it’s important to consider their inherent design characteristics.

Catamarans, with their twin hulls and wide beam, generally offer better initial stability than monohulls. The separation of the hulls provides a larger base and increased resistance to rolling.

This stability advantage is particularly noticeable at rest and in calm or moderate sea conditions. Catamarans tend to have a more level sailing experience and minimal heeling, which can be appealing to those who prefer a stable platform.

On the other hand, monohulls have a single hull and a narrower beam. This design makes them more prone to heeling, especially when sailing close to the wind or in stronger gusts.

However, monohulls are designed with deep keels and ballast systems to provide stability and the ability to recover from heeling. The combination of their keel and ballast works to counterbalance the forces acting on the sails, enhancing stability and minimizing excessive rolling.

It’s important to note that the stability of both catamarans and monohulls can be influenced by factors such as weight distribution, sail plan, and sea conditions. Improper loading or sail handling can affect the stability of any vessel, regardless of its design.

In terms of overall stability, catamarans often provide a more initial stable platform due to their wider beam and twin hulls. However, monohulls can offer a different kind of stability through their ability to recover from heeling and their long-established track record of safe offshore passages.

We would advise you to experience both types of boats firsthand, if possible, to get a better sense of their stability characteristics and determine which suits your needs and preferences best.

Speed: Catamarans vs. Monohulls

When it comes to speed, catamarans and monohulls have distinct characteristics and performance capabilities.

Catamarans are generally known for their high-speed potential. The design of a catamaran, with its two hulls separated by a wide beam, offers reduced drag and increased stability, allowing them to sail at higher speeds.

The wide beam also provides a larger surface area for sail plans, enabling catamarans to harness more wind power.

Due to their lightweight construction and reduced resistance in the water, catamarans can often achieve faster speeds, especially in reaching and downwind conditions.

Monohulls, on the other hand, have a single hull and a narrower beam. Their design may result in increased drag and slower speeds compared to catamarans, particularly in light wind conditions.

However, monohulls are well-suited for upwind sailing, thanks to their ability to heel and make use of the lift generated by their sails. This characteristic allows monohulls to excel in close-hauled or beating angles, which can be advantageous when sailing against the wind.

It’s important to note that the specific design, size, and rigging of a catamaran or a monohull can greatly influence their speed potential.

Different models, materials, and sailing configurations will have varying performance characteristics. Additionally, the skill of the captain and crew in optimizing sail trim and harnessing the wind’s power also plays a significant role in achieving maximum speed.

The cost of catamarans and monohulls can vary significantly based on several factors, including the size, age, brand, construction materials, and overall condition of the vessel.

It is essential to consider both the initial purchase price and the ongoing costs associated with owning and maintaining the boat.

Catamarans, in general, tend to be more expensive than monohulls of similar size and condition. The construction, materials, and design complexity of catamarans often contribute to their higher price tag.

The wider beam, twin hulls, and larger deck spaces of catamarans require more materials and labor during the construction process, leading to increased costs. Additionally, the popularity and demand for catamarans can also impact their pricing.

Maintenance costs can be higher for catamarans compared to monohulls. Catamarans typically have more deck space, more systems and equipment, and two hulls to maintain, which can result in increased maintenance and repair expenses.

Furthermore, the cost of haul-outs, bottom paint, and other services may be higher for catamarans due to their wider beam and potentially larger size.

Docking fees in marinas can also be higher for catamarans. Many marinas charge slip fees based on the length overall (LOA) and beam of the vessel. Catamarans, with their wider beam, may require larger slips, resulting in higher docking fees compared to monohulls.

However, it’s worth noting that docking fees can vary between marinas and regions, so it’s important to research and compare the costs in the specific areas where you plan to moor your boat.

Insurance costs for catamarans are typically higher than for monohulls. Insurance premiums are influenced by various factors such as the value of the boat, its size, cruising area, and the owner’s experience.

Catamarans often have higher values, and their wider beam may result in higher insurance premiums compared to monohulls. It is crucial to obtain insurance quotes specific to the vessel you are considering to understand the potential costs involved.

It’s important to keep in mind that these cost considerations are general observations, and individual circumstances may vary. Factors such as age, condition, location, and market trends can all influence the actual costs of catamarans and monohulls.

You can definitely buy an older catamaran in bad condition for less than a newer, ready to sail monohull as we did! Or opt for a small catamaran for cruising instead of a larger monohull.

Conducting thorough research, consulting with experts, and obtaining specific quotes and estimates are advisable when evaluating the cost implications of owning either type of vessel.

In conclusion, while catamarans generally tend to be more expensive to purchase, maintain, and insure compared to monohulls, the actual costs can vary significantly based on individual factors.

It’s crucial to assess your budget, intended use, and long-term financial considerations when deciding between a catamaran vs. a monohull.

The maintenance requirements for catamarans and monohulls can vary based on factors such as size, age, construction materials, and the specific equipment and systems onboard.

Catamarans typically have more deck space and systems to maintain compared to monohulls. With two hulls, there are generally more areas to clean, inspect, and maintain.

This includes the hulls, decks, and various components such as trampolines, rigging, and bridge decks. The larger deck areas and additional systems, such as two engines, may require more time and effort for cleaning, maintenance, and routine checks.

The hulls of catamarans often require regular cleaning and antifouling to prevent the growth of marine organisms and maintain optimal performance. Due to their wider beam, catamarans may have a larger underwater surface area, which can result in increased costs for haul-outs, bottom paint, and related services.

Monohulls typically have a single hull and a more streamlined shape, which may make certain maintenance tasks more straightforward. The single-hull design can simplify tasks like hull cleaning, inspection, and maintenance.

However, monohulls may have deeper keels and other appendages that require attention and occasional maintenance, such as keel bolts, rudders, and through-hull fittings.

Both catamarans and monohulls have various onboard systems and equipment that require regular maintenance, such as engines, generators, plumbing, electrical systems, and navigation equipment.

The maintenance requirements for these systems can be similar regardless of the hull type, as they depend on the quality of the equipment, usage patterns, and adherence to recommended maintenance schedules. On a catamaran though, remember you’ll have double of most things!

It’s important to note that maintenance needs can also be influenced by the quality of construction, materials used, and overall condition of the vessel. A well-maintained and properly cared-for boat, whether a catamaran or a monohull, is likely to require less maintenance and be more reliable in the long run.

Regular inspections, maintenance checklists, and adherence to manufacturer guidelines and recommendations are crucial for ensuring the safety and longevity of any vessel.

In conclusion, while catamarans may have more deck space and systems to maintain, the specific maintenance requirements can vary depending on individual factors. Regular cleaning, inspection, and upkeep of hulls, systems, and equipment are essential for both catamarans and monohulls to ensure their safe and reliable operation.

When comparing the ability to maneuver, catamarans and monohulls have some differences based on their design characteristics.

Catamarans generally have better maneuverability in certain aspects. Due to their twin-hull design, catamarans typically have a smaller turning radius, allowing them to make tighter turns compared to monohulls. This can be advantageous when navigating in tight spaces, such as marinas or narrow channels.

The wide beam of catamarans provides inherent stability, which can contribute to a more predictable and controlled maneuvering experience. They have a reduced tendency to heel, allowing them to maintain a more level sailing platform while executing maneuvers. This stability can be particularly beneficial when sailing in challenging conditions or when performing quick maneuvers.

Monohulls, on the other hand, have different maneuvering characteristics. Their single-hull design allows them to tack more efficiently when sailing upwind, taking advantage of the lift generated by their sails. Monohulls can often point closer to the wind compared to catamarans, making them more effective in beating angles.

Monohulls with deep keels and rudders may have better tracking ability and may be more responsive to helm inputs compared to catamarans. This can make monohulls more agile and responsive during maneuvers such as jibing or changing course.

However, it’s important to note that the maneuverability of any boat depends not only on its design but also on factors such as size, weight, sail plan (how many sailboat masts ), rigging, and the skill of the captain and crew. The performance and maneuverability of a vessel can be influenced by the specific model, its handling characteristics, and the experience of those operating it.

Ultimately, the ability to maneuver a boat effectively depends on the individual’s familiarity with the vessel, understanding of sailing principles, and proficiency in handling various sailing maneuvers.

Practice, training, and experience are key factors in mastering the maneuvering capabilities of any sailboat, whether it’s a catamaran or a monohull.

It’s worth noting that modern catamarans and monohulls often incorporate advanced sail handling systems, such as electric winches and bow thrusters, which can enhance maneuverability and make handling the boat easier in certain situations.

In conclusion, catamarans and monohulls have their own maneuvering characteristics based on their design features. Catamarans generally offer tighter turning radius and better stability, while monohulls may excel in upwind sailing and responsiveness.

However, individual experience, skill, and familiarity with the vessel play significant roles in maximizing maneuverability for either type of boat. I’m terrified of docking the new catamaran considering how much bigger it is, but with practice you can get used to any vessel.

Fuel Efficiency: Catamarans vs. Monohulls

When comparing the fuel efficiency of catamarans vs. monohulls, there are several factors to consider that can impact their respective fuel consumption.

Catamarans, with their wide beam and twin-hull design, generally offer better fuel efficiency compared to monohulls of similar size.

The reduced hull drag and increased stability of catamarans contribute to improved fuel economy. The efficient hull shape and reduced resistance in the water allow catamarans to glide through the water more easily, requiring less power to maintain a given speed.

Monohulls, with their single hull and narrower beam, typically have higher hull drag and may require more power to maintain similar speeds compared to catamarans.

However, modern monohull designs incorporate advancements in hydrodynamics and sail technology, which can help optimize fuel efficiency. Efficient hull shapes, bulbous bows, and streamlined appendages can all contribute to improved fuel economy in monohulls.

The specific speed and conditions of sailing can significantly impact fuel efficiency for both catamarans and monohulls.

Generally, sailing at lower speeds or utilizing downwind conditions can improve fuel efficiency, as it reduces resistance and minimizes the need for engine power. On the other hand, pushing a vessel to its maximum speed or sailing against strong headwinds can increase fuel consumption.

Other factors that can influence fuel efficiency include the size and weight of the vessel, the engine type and power, the sail plan, and the cruising habits of the captain and crew.

Efficient propulsion systems, such as modern diesel engines or hybrid electric systems, can further enhance fuel efficiency for both catamarans and monohulls.

It’s important to note that the fuel efficiency of any boat is also influenced by factors such as maintenance, proper hull cleaning, and overall vessel condition. Fouled hulls, dirty propellers, and inefficient systems can increase drag and reduce fuel efficiency.

Ultimately, the fuel efficiency of a catamaran or a monohull can vary depending on multiple factors, and it’s challenging to make broad generalizations. When considering the fuel consumption of a particular vessel, it’s essential to evaluate the specific design, size, engine setup, and cruising habits to obtain a more accurate understanding of its fuel efficiency capabilities.

In conclusion, catamarans generally offer better fuel efficiency compared to monohulls of similar size, thanks to their reduced hull drag and increased stability.

However, advancements in monohull design and technology have narrowed the gap, and modern monohulls can also achieve respectable fuel efficiency. The specific vessel, its design, engine setup, and cruising habits will ultimately determine the fuel efficiency of a catamaran or a monohull.

When it comes to determining which is better in rough seas, whether a catamaran vs. a monohull, it depends on various factors and personal preferences.

Both types of vessels have their own strengths and considerations in rough conditions and it took us a lot of research to work out that really there isn’t a ‘better vessel’, just different preferences.

Catamarans, with their wide beam and twin-hull design, generally offer better stability and reduced rolling motion in rough seas. The separation of the hulls provides a larger base and increased resistance to rolling, resulting in a more stable platform.

This can contribute to a smoother and more comfortable ride, particularly in waves or when the sea state is challenging.

The inherent stability of catamarans can also be advantageous when sailing in rough seas, as it reduces the tendency to heel excessively and maintains a more level deck. This can enhance safety and comfort for crew and passengers, as well as provide better accessibility to onboard amenities and reduce the risk of items shifting or falling.

Adam and I have always found that the constant rolling on our monohull caused lots of opportunities for accidents, and even sometimes prevented us from checking things on deck because we felt too unsafe to move around up there in heavy seas.

On the other hand, monohulls are known for their ability to handle rough seas and heavy weather conditions effectively.

Their single hull design, with a deep keel and ballast, allows them to slice through waves and provide a more predictable motion in challenging sea states. The weight and ballasting of monohulls contribute to their ability to maintain course stability and resist being pushed around by waves and wind.

Monohulls also have a reputation for their ability to “self-right” in extreme situations, where their inherent stability helps them recover from a knockdown or capsize. This characteristic can provide added safety and reassurance in rough seas.

It’s worth noting that the specific design, size, construction, and condition of a vessel can significantly influence its performance in rough seas.

Heavy weather sailing often requires proper preparation, including reefing sails, securing loose items, and ensuring the boat is seaworthy and equipped with appropriate safety gear.

Additionally, the skill and experience of the captain and crew play a crucial role in handling a boat in rough seas. Understanding the vessel’s limitations, practicing good seamanship, and making sound decisions based on prevailing conditions are vital regardless of the type of boat.

Which Makes A Better Liveaboard Sailboat?

Determining which sailboat makes a better liveaboard depends on individual preferences, lifestyle, and specific needs. Both catamarans and monohulls can offer advantages and considerations for liveaboard sailing.

Catamarans are often preferred as liveaboard sailboats for several reasons:

• Space and Comfort: Catamarans generally offer more interior space and living area compared to monohulls of similar size. The wide beam allows for spacious cabins, larger saloons, and generous deck space , providing a more open and comfortable living environment.
• Stability: Catamarans’ twin-hull design provides inherent stability, minimizing rocking and rolling motion. This stability can contribute to a more comfortable living experience, especially for those prone to seasickness or families with young children.
• Privacy: Catamarans often have separate hulls with cabins located in each hull. This layout can provide increased privacy, making them suitable for couples, families, or individuals who value their own space.
• Accessibility: The level decks of catamarans make it easier to move around the boat, especially for those with mobility challenges or families with young children. The absence of heeling allows for a more stable and safer environment while underway or at anchor.

Monohulls also offer advantages for liveaboard sailing:

• Sailing Performance: Monohulls are known for their sailing performance, particularly upwind. They typically have better windward ability and can handle a wider range of sailing conditions. If sailing and performance are priorities, a monohull may be preferred.
• Cost: Monohulls generally have a lower purchase price and maintenance costs compared to catamarans of similar size and condition. This can be advantageous for those on a tighter budget or looking to minimize expenses.
• Traditional Experience: Many sailors appreciate the traditional experience of sailing a monohull. The heeling sensation and close connection to the water can provide a sense of adventure and immersion in the sailing lifestyle. We have to say, we loved the romance that living on board our monohull gave.
• Docking and Marinas: Monohulls generally require narrower slips, making them more suitable for certain marinas and docking situations where space may be limited. This can provide more flexibility in choosing berthing options (and cheaper too!)

Ultimately, the choice between a catamaran and a monohull as a liveaboard sailboat depends on individual preferences for space, comfort, stability, performance, budget, and intended use. Check out the best shallow draft liveaboard sailboats .

We would recommended you spend time on both types of boats, perhaps through charters or boat shows, to experience firsthand their layout, handling, and suitability for living aboard.

If you can’t do this, then we would suggest you buy a cheap boat to start with and spend six months living aboard to work out what you really want and need from a liveaboard boat.

Consulting with experienced liveaboard sailors can also provide valuable insights and perspectives based on their own experiences, and watching sailing YouTube channels can also help you form an idea of what you might need.

Conclusion: Catamaran Vs. Monohull

In conclusion, the choice between a catamaran and a monohull depends on various factors and personal preferences. Both types of sailboats offer distinct advantages and considerations.

Catamarans excel in areas such as spaciousness, stability, and comfort. Their wide beam provides ample living space, and their twin-hull design offers inherent stability, making them popular choices for liveaboard sailors seeking a comfortable and roomy living environment.

Catamarans also have advantages in terms of maneuverability, fuel efficiency, and shallow draft capabilities.

Monohulls, on the other hand, are known for their sailing performance, particularly upwind. They offer a traditional sailing experience with a heeling sensation and a closer connection to the water.

Monohulls generally have lower purchase and maintenance costs compared to catamarans, making them more budget-friendly options. They can also be advantageous in certain docking situations and marinas that have narrower slips.

It is important to consider factors such as space requirements, stability preferences, sailing performance, budget, and specific cruising plans. It is advisable to spend time on both types of boats to gain firsthand experience and insights into their handling, comfort, and suitability for specific needs.

Consulting with experienced sailors, attending boat shows, and seeking professional advice can also provide valuable guidance in making an informed decision.

Ultimately, selecting the right sailboat, whether a catamaran or a monohull, is about finding the vessel that aligns with your preferences, lifestyle, and goals for the sailing experience.

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Catamaran Or Monohull? 27 Important Facts (Explained)

Catamarans and monohull boats are two very different kinds of vessels.  Each craft offers distinct advantages and disadvantages that you’ll want to consider before choosing between the two.

In this post, we’ll go over some of the important things to consider when choosing between catamarans and monohull boats:

Table of Contents

Cost & Availability

Both catamarans and monohull boats come in small recreational sailing versions, larger motorboat versions, and larger sailing models.  In all cases, the catamarans will cost more and will be harder to find.

The reason catamarans are harder to find because there are not as many of them, and they’re mostly made overseas.

Also, there aren’t as many catamaran manufacturers, so sailors have fewer options when buying them.

On top of this, catamarans have only recently become popular in the United States and other areas of the developed world.  This means the used market for boats doesn’t have as many catamarans on it.  You might find that you have fewer options when making a used catamaran purchase, which could bring costs up to a premium.

Two Times The Fun with Catamarans

Another reason that catamarans are more expensive than monohulls is the fact that catamaran buyers have to purchase two hulls, two engines, and two of all of the components that help make an engine work.

Traditional sailboats and large powerboats with one engine don’t have this cost issue.

On top of this, a catamaran is much wider than a monohull, and thus you have more space to build and equip.

On the other hand, once you’ve purchased the boat, you do get to enjoy the benefits of having two of everything.  We’ll talk about the advantages of this further down in this post.

Maintenance Cost Makes A Difference

The maintenance on a catamaran is also more expensive than the maintenance on a monohull boat.  This goes back to the fact that there is twice as much of everything to maintain.

Catamaran owners will need to do preventative maintenance on two different engines, and they’ll have two hulls and a large deck area to clean and maintain as well.  If they’re getting the bottom of the boat treated, they’ll have to do this twice (once for each hull).

Even the interior components can usually be found twice.

Each cabin will usually have a head in it, so you’ll have at least two toilets and sinks to maintain, which obviously has its plusses and minuses.

One positive aspect of this is that catamaran owners do have the option of deferring some of their maintenance.  For example, if one head is no longer functioning properly, you always have the second one that you can use.

It also adds a bit of safety as well.

This is because while the catamaran does have two engines to maintain, the owner does have power even if one of the engines happens to go down.

Some catamaran owners also like to point out that maintenance may not have to be done as frequently.  This is because the engines don’t have to work quite as hard, and other items like additional bathrooms and sinks might only be used half as much.

How Much Space Do You Need?

A catamaran has more space than a monohull.  This is because the boat is wider, and it has a much larger deck area.  It also has twice as many hulls, so you have more overall space between the two of them.

The additional space is great for people looking to throw parties on their boats.

Most boat owners would agree that the catamaran is usually the party boat of choice at the docks.

Even if you aren’t into throwing parties, the extra space can still be nice for relaxing on the deck or getting a suntan.  The wide-open space also makes it easy to use the boat as a fishing platform.

Additionally, you have more space for stuff like surfboards, rafts, and other items that can easily clutter up the deck of a monohull.  Even fishing can be easier from a catamaran as the deck provides plenty of space between different anglers.

Catamaran owners also have additional space for carrying fresh water and adding generators and solar panels.

Interior space is generally more plentiful on a catamaran, and luxury catamarans have an easier time fitting large items like washers and dryers inside of them.  You can have these on larger monohulls as well, but it will be harder to make them fit than it is in a catamaran.

On the other hand, all of the additional space means the catamaran owner has more space to maintain and clean.  Also, all of the additional items that can be brought onto the boat will make it heavier.  A heavier boat will use more fuel, and it will travel more slowly.

Living Quarters Vary Between The Two

The living quarters on a catamaran are much different than they are on a monohull.  Most people would agree that the berths in a monohull are much more spacious than in a catamaran.

A monohull offers people the opportunity to have a large bed with space on either side to walk around it.  This is great for couples who want to get out of bed without waking up their partner.

Catamarans, on the other hand, have the advantage of being able to offer large above-deck salon areas.  The galleys, the dining areas, and the living areas can all be above-deck, while the two hulls can provide heads and berths.

Some boat owners say that living in a monohull is akin to living in a basement apartment .  Other boat owners prefer the monohull because it brings them closer to the water and gives them the feeling of being at sea.

Privacy Can Be Prioritized On Catamarans

A catamaran offers up many different living areas that people can take advantage of.  For example, each hull will typically have its own bathroom and bedroom.

This gives each sleeping area complete privacy from the other.

The living quarters are usually up on the deck, so early risers can wake up and move to these quarters without waking up the others.

The same holds for night owls.  A night owl can stay up late without bothering the people who want to retire to their beds earlier.

With two hulls, large catamaran owners can hire a crew and give them their own hull to live in so that there is separation between the cruisers and the crew.  This is a wonderful advantage for honeymooners looking to have their own space.

The downside to all of this, of course, is that sometimes a family may not want the additional privacy.  For example, a family with small children might not want their children in a different hull than they are.

Additionally, the extra privacy can make it hard for people on the boat to communicate.  This could become a big problem in the event of an emergency.

For this reason, it is often recommended that each hull have a radio in it so that the occupants can quickly communicate with each other.  Remember, even in inland areas, cell phone reception may not be very good inside the boat hulls.

Recreation In a Monohull vs. a Catamaran

Most sailors agree that sailing a monohull boat is much more exhilarating than sailing a catamaran.  Traditional sailboats heel, and sailors get instant feedback while they’re sailing.  For the most part, catamarans stay stable, and you don’t get the same feeling with the movement of the wind and the water.

When it comes to monohull powerboats, you have the advantage of being able to pull water skiers, kneeboarders, and tubers with ease, as long as the boat has the power and a planing hull.  A power catamaran usually doesn’t have the speed or maneuverability to pull off these recreational opportunities because they are displacement hull designs.

Catamarans excel in more leisurely recreational activities.  A catamaran makes a great party deck as well as a great cruising deck.  Catamaran owners can comfortably walk around a catamaran without having to worry that the boat might knock them over the next time it decides to heel.  This allows boaters to sit and talk with one another comfortably.

A catamaran can also be used as a beaching vessel.  This makes it a great platform for people looking to go swimming or fishing around sand bars and other shallow water areas.  It also makes it a great boat for sailors looking to sail a larger boat on a river or lake known for having shallow areas.

Swimming and Diving

Swimming and diving off of a catamaran are usually much easier than doing the same from a monohull.  The wide stance of the two hulls offers boat designers the option to put in staircases at the back of both hulls.

In between these staircases, some boats will have an additional diving platform and/or a dedicated frame for pieces of equipment and dinghy storage.  This makes catamarans great for swimmers, snorkelers, and divers.

On the other hand, modern monohull sailboats can also have good transom stairs for easy access to the dinghy and swimming.  Both types of boats can easily travel far out to sea, giving boaters the option of diving in areas that can’t be accessed from beaches and developed areas.

Boat Draft In Shallow Waters

For the uninitiated, the boat’s draft refers to how deep the boat’s hull sits within the water.

A monohull typically sits deep within the water, while a catamaran sits much higher on the water.  This is why we stated that a catamaran is good for shallow waters.

The advantage of having a boat that can go into shallow waters isn’t restricted to just recreational activities like swimming and fishing.  A boat that can go into shallow water is safer to operate in areas where a boat with a deeper draft might become damaged.

Additionally, a catamaran has more stability on calm waters.  This helps make a catamaran more comfortable to relax or sleep on while at anchor or the dock.

The deeper draft of a monohull boat has its advantages as well.  A deeper draft provides more stability in rough waters and allows a boat to go further into the sea.

For this reason, many coastal cruisers will prefer catamarans, while many ocean voyagers will prefer monohull boats.  In fact, some areas of the Caribbean and the Florida Keys can be off-limits to boats with deep drafts as it simply isn’t safe for the boat to navigate these waters.

This isn’t to say that you can’t navigate these waters in a monohull boat, but you will have to be cautious depending on how deep your monohull’s boat draft is.  You wouldn’t have this issue in a catamaran.

Stability On The Sea

A catamaran offers a lot more stability in shallow waters, in calm waters, at the dock, and anchorage.  This makes the boat great for cruising and for relaxing in port.

A monohull offers a lot more stability in rough waters.

This makes this boat great for heading out to sea and for navigating vast distances.

Safety Issues To Consider

Both catamarans and monohulls can be built to navigate the waters they were made for safely.  This will be determined more by the boat’s category designation rather than the type of boat.

However, each boat deals with unsafe situations in different ways.  For instance, a monohull boat is likely to right itself if it is capsized.

This means that even in rough seas, you’re unlikely to find yourself permanently capsized.

The downside to this is that should you become completely swamped from a capsize in a monohull boat, you are much more likely to sink.  In fact, if there is a hull breach on a monohull boat, your boat could sink.

Catamarans are said to be unsinkable.  This isn’t completely true, but it is very unlikely that a catamaran will sink.  Even if a hull is breached, you still have a second hull to keep the catamaran afloat.

However, a catamaran can’t right itself.  If you capsize your catamaran, it will stay capsized.

One other safety concern to consider is that a monohull sailboat will heel while a catamaran will not.  This increases the chances that someone could fall off the boat or onto the deck in a monohull boat.

Catamarans Are Faster Than Monohull Boats

A catamaran is faster than the average monohull boat.

This is because they face less water resistance, and their narrow hulls don’t have to deal with their own bow waves as a monohull does.

Of course, catamarans aren’t always faster.  Old cruising catamarans may not go faster than 8 knots, and modern monohulls can exceed 10 knots.

Monohull boats tend to sail downwind and in choppy seas better than catamarans.  This gives them a speed advantage during ocean voyages.

We have a separate post with complete average speeds per type of catemaran . It’s a must read if you are at all concerned about speed!

Fuel Consumption Considerations

Catamarans have two engines to burn fuel, which can drive up fuel costs.

However, a catamaran is lighter on the water, so it usually takes less energy to move a catamaran.  This means you’ll end up using less fuel in a catamaran than you would in a monohull.

On top of this, catamarans can decide to use just one engine in low wind areas.  This further decreases the amount of fuel that a catamaran consumes.

These rules only apply to calm waters.

A monohull navigates waters with high waves and strong winds much more efficiently than a catamaran.  In this case, you’ll use less fuel in a monohull than you would in a catamaran.

Sailing Differences To Notice

Sailing a monohull boat can be exhilarating.  These boats can glide through choppy waters, and you get to feel the motion of the boat as the sea rushes by the cockpit and the wind causes you to heel.

This type of sailing also provides instant feedback as you’ll know what you need to do with the sails as you’ll feel what is going on through the boat’s motion.

Sailors all over the world have been using monohull sailboats for years, and you’ll find plenty of outlets for recreational sailing with a monohull sailboat.

Sailing catamarans do not heel like a monohull sailboat.

These boats, therefore, do not provide the sailor with instant feedback.  Also, if you incorrectly sail a catamaran, you do risk capsizing the boat more easily.

Training Can Be Quite Hard

Sailing a catamaran and sailing a monohull boat are two different experiences.  People looking to sail either should probably get professional training.

Obtaining this training will always be easier with a monohull boat.

This is because monohulls are more popular, so you’ll have more instructors available to you.

Do You (Or Your Friends) Get Seasick?

People who are prone to getting seasick easily might want to consider a catamaran.  A catamaran provides much more stability in calm waters, and you get a lot less movement.

On the other hand, people who are not prone to getting seasick might prefer a monohull in choppy waters.

This is because a monohull will deal with deep and choppy waters with high waves much better than a catamaran will.

As a result, a catamarans movement can seem extreme under these types of conditions.  People who have never gotten seasick before can end up sick under these conditions.

Here’s a separate article we wrote with everything you should know about seasickness on Catamarans . There are some things you can do and some things you should know!

Docking Is (Usually) Easier With A Monohull Boat

Docking a catamaran can be a difficult endeavor.

This is because catamarans are often too wide to be docked within the slips located in central areas of a marina.

Because of this, they need to be docked at the end of the dock.  This leaves them with fewer spots to dock.  It also makes docking more expensive.

Catamaran owners traveling through areas that are unlikely to have many catamarans in them may find it difficult to find a dock at all.  This is true in areas of the northern Atlantic where monohulls are much more popular than catamarans.

Storage Issues To Consider

Even storing a catamaran can be more difficult.  This is because storage facilities often do not have the equipment to get a catamaran out of the water.

The wide width of these boats requires special lifts, and not all boat marinas will have them.

Storage facilities that do get the catamaran out of the water will often charge more money for it.  They’ll charge additional fees for taking the catamaran out of the water, and they’ll charge additional fees for the actual storage of the boat as well.

Redundancy And Backup Equipment

We touched upon this earlier, but it is worth repeating that catamarans have many redundancy built into them.  This can be a big advantage when it comes to safety.

For example, if one rudder becomes inoperable, the boat can still be steered with the other one.  If one engine becomes inoperable, the boat can still be driven with the other one.

In extreme cases, a hull could become damaged, and you could still stay afloat because the other hull will keep the boat safely above water.  These safety advantages can save lives and keep people from becoming stranded out at sea.

The primary downside is the maintenance issue that we mentioned earlier.  All of these redundant components will need to be maintained.  As a result, maintenance costs will be close to twice as expensive in a catamaran.

Cooking Is Easier On Catamarans

Cooking on a catamaran is usually easier than it is on a monohull.  The main reason for this is that a catamaran doesn’t heel like a monohull, so you don’t have to worry as much about things falling over.

This not only makes cooking easier, but it makes cooking safer as well.

Additionally, catamaran galleys tend to have more space in them to move around.  Also, they are often up on the deck, so you don’t have to climb in and out of the hull with your dinner in hand.

Dinghy Storage

Monohulls and catamarans can both hold dinghies.  The larger the boat, the larger the dinghy can be.

However, catamarans have a wide area at the rear of the boat that is perfect for holding dinghies.

This makes getting in and out of the dinghy easier.  Also, people can often have larger dinghies on their catamarans because the boat’s stern is so accommodating.

Power Generation Is Easy On A Catamaran

A catamaran has a lot of space for solar panels and wind turbines.  Rigid panels can be placed in areas that won’t be walked on, like overtop of the bimini, and flexible panels can be placed in areas where the panels might end up getting stepped on.

The width of a catamaran even gives them more opportunities to put hydro generators into the water.

This means catamarans can generate more power than the average monohull boat can generate.

On the other hand, a monohull usually has less powered items to worry about.  Monohulls need less power to operate at full capacity, so you may not need all of the additional space for generating power.

Ventilation Issues To Think About

Some people feel that monohull boats don’t offer enough ventilation.  This is especially true in warmer areas of the world.

Catamarans also lack ventilation within their hulls, but fortunately for them, much of the living space is located up on deck.  This gives catamarans an edge when it comes to cruising in warm weather.

On the other hand, monohull owners aren’t exposed to the cold winds that you might find up on deck in harsher climates. 

This lack of airflow may actually be of benefit in this instance.

Some people find monohulls to be better looking than catamarans and vice versa.

This all comes down to personal preference, so you’ll have to decide for yourself which type of boat has the advantage in this case.

Some people think catamarans are the most elegant thing in the world while others prefer monohull boats as they look more classic.

Resale Value Is An Important Factor

If you read our extensive guide to boat depreciation per boat type , you know that no matter what boat you buy, it will always go down in value.  This is just a sad fact of boat ownership that people need to consider before buying a boat.

Many factors go into how much you’ll be able to get for your boat when you resell it.  These factors are the condition of the boat, the age of the boat, and the economy in general.  For example, people are less likely to want to buy boats during a recession.  This is especially true when it comes to smaller boats.

However, one additional factor that catamaran owners need to consider when thinking about resale value is the value of the dollar. 

People from the United States don’t have many American catamarans to choose from and will usually need to buy these overseas.

This means that a catamaran will be less expensive to buy when the dollar is strong compared to the Euro and more expensive to buy when the dollar is weaker in comparison.  This will affect the used market as well because higher values on new catamarans can help to bring up the value on the used market.

With a monohull boat, you may not have to consider situations like this as there are makers of monohull boats all over the world.

Don’t Let The Length Trick You!

One thought to keep in mind when comparing monohull boats and catamarans is that their different shapes account for different space advantages.

For example, a 40-foot long catamaran will have much more cubic space than a 40-foot long monohull.

Because of this, when comparing boats, you should look at the cubic space rather than the length. In this case, you may be comparing a 48-foot long monohull with a 40-foot long catamaran.

When you compare the two types of boats in this manner, the price differences aren’t quite as large, and the comparison is fairer.  It also may make the operating and maintenance costs more similar.

This is an important distinction to make because the length of the boats can trick you!

Consider Trying Both (Before Buying)

Boats can be an expensive purchase, so it makes sense to try them out before you decide to make your purchase.

Rent each type of boat and use it on the types of waters that you intend to cruise on the most.

Try the boat out in different weather conditions as well, and don’t be afraid to do multiple rentals before you make your final choice.  The time and money invested into making sure you get the boat you really want will be more than worth it in the end.

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Catamaran vs. Monohull Sailboats

Last Updated by

Daniel Wade

June 15, 2022

When it comes to catamaran vs. monohull, there are two schools of thought that always prompt impassioned debates as to which one is much better.

If you've used both a catamaran (a boat with two hulls) and a monohull (a boat with one hull), you know that they both have pros and cons. In most cases, it all boils down to your personal preferences and intended use but that shouldn't prevent us from highlighting the better one.

A catamaran is much better than a monohull in many ways. Catamarans are more stable, faster, and spacious. They also offer safer anchorage and are easy to control. Monohulls are more maneuverable, have lower costs, and better when sailing upwind. It all comes down to personal preference and intended purposes, but when it's all said and done, a catamaran has more advantages than a monohull.

In this incisive article, we'll highlight the critical differences between a catamaran and a monohull and see the one that comes out on top.

Table of contents

Catamaran vs Monohull

Safety while out there on the water is one of the most critical things that any sailor should have in mind when choosing the type of boat to use.

Catamarans shine on many aspects of safety. They're generally more stable and seem to have natural buoyancy since they don't have ballast and this makes them almost unsinkable. Generally, catamarans are designed with a considerable amount of reserve buoyancy thanks to the crannies of the vessel, nooks, and closed-cell foam. These objects can, however, become a serious cause of safety concern should there be a fire outbreak. All in all, a cat can sink in an accident, but it'll most likely float on the surface of water unlike monohulls, which will sink to the bottom.

Again, catamarans have flat decks. This makes it a lot safer to walk on them than it would be to walk on angled decks of monohulls. Given their flat decks, a catamaran boat will stay level and have less pitching and so it's a lot easier to keep the crew aboard and safe even in rough weather.

Another important fact that may contribute to the safety of a catamaran is its speed. If you've always believed that speed equals safety, then a catamaran is the right boat for you. In short, the speed of a catamaran will allow you to outrun rough weather. A modern catamaran can clock nearly 250 miles a day, which is quite faster, and so there's no reason why you should get caught in bad weather.

In terms of safety, a monohull is nowhere near a catamaran as far as safety is concerned. The most important thing about a monohull in terms of safety is its self-righting capabilities. With a monohull, you're likely to return to an upright position even after capsizing and this can give you a chance of accessing onboard safety equipment, floatation devices, life raft, EPIRBS, dinghy, strobe lights, and many more.

Unfortunately, the same cannot be said of a catamaran. With a catamaran, you'll stay upside down once you're upside down and this can be fatal in the middle of the ocean.

Verdict: The self-righting capabilities of a monohull can be life-saving but it isn't guaranteed. On the contrary, a catamaran has loads of safety features chief among them is its unsinkability, so it easily comes out on top as far as safety is concerned.

Speed and Performance

If everything including length remains the same, a catamaran is about 30% faster than a monohull. A cat can sail at half the speed of wind but this will, of course, upon the angle of the wind. It remains the faster vessel and will allow you to arrive at your destination promptly. If anything, you can outrun bad weather with a catamaran.

Monohulls are generally designed to operate pleasantly with the sailing elements. This means that they won't fight these elements and will, in turn, offer slow but sure sailing. However, they do not have a lower wetted surface area and are certainly much slower when compared to catamarans. They can, nonetheless, be a great choice for sailing upwind.

Verdict: When it comes to speed, the catamaran wins hands down. No argument.

Needless to say, a catamaran is designed with two parallel hulls that give it a more reliable form of stability. This is crucial in preventing heeling and capsizing while also mitigating any chances of rolling when speeding. This stability is also of great importance in eliminating seasickness for passengers.

The level of stability that a catamaran has is one of the main reasons why capsizing is a very rare occurrence. A catamaran can lurch when the tops of the waves are at a certain distance, thereby leading to less bobbing.

The stability of a monohull will always be questioned, especially when compared to a catamaran. To put it into perspective, a monohull is four times more likely to capsize than a catamaran because its design means that it has less stability. If anything, a mono's single-beam design makes it seven times more likely to feel the effects of heeling than a catamaran of the same size. In essence, heeling is a major problem in monohulls.

Verdict: The high level of stability that a catamaran brings to sailing will make even a novice sailor feel more confident sailing on a catamaran. Differently, a monohull is less stable and seems to be in constant rolling and pitching motion, which makes it very unstable and unsafe to walk around the deck.

Maneuverability

In most cases, cats always have twin engines, set almost 20 feet apart. This will not only give you superb close control in tight situations but certainly removes the need for a bow thruster. While it may seem redundant to have twin engines on a cat, you'll appreciate the importance of the second engine if the first engine develops a mechanical issue while you're out there on the water.

The shallow drafts of the catamaran also play a major role in maneuverability in the sense that you can navigate into places where you can't get with a monohull such as close to the shore without thinking about running aground.

From a different point of view, a monohull can be better in terms of maneuverability since you won't be dealing with two hulls. A monohull can also make sharp turns and even sail through narrow channels and tight spaces, which is almost impossible with a catamaran. Additionally, a monohull has a higher hull displacement, which is essential in reducing the adverse effects of crosswinds, especially in tight conditions.

Verdict: The differences in terms of maneuverability are slight in both the catamaran and monohull. The fair verdict here is a draw.

Docking and Anchorage

With no ballast or a considerable keel, the overall weight of a cat is significantly reduced. This makes it more lightweight and this is why it wouldn't be uncommon for a 36+ foot catamaran to explore some of the shallow areas that a monohull wouldn't dare reach.

However, the wider and unique size of a cat means that it won't easily fit on a traditional slip and this needs a unique set of skills and careful planning to anchor at most docks. This means that finding the right space at the dock can be quite difficult, so you may have to take a dinghy to the shore.

A monohull is a lot easier to dock as it takes less space compared to a catamaran. This means that your docking, hauling, and slipping charges will be much less than those of a catamaran.

Verdict: Does it make any sense to bring two boats to the shore? Well, this is what you do when you have a catamaran and it certainly loses to the mono as far as docking and anchorage are concerned.

Ride Comfort

A comfortable ride is, without a doubt, one of the most important things to consider when looking for the right boat for you.

The fact that a catamaran is designed with a wider footprint is of great importance in mitigating the negative effects of unpredictable rolling and pitching that sailing is known for. A catamaran has a broad surface area, which makes it more comfortable and stable. As such, it's a lot easier and safer to cook while sailing.

Again, your passengers will be less prone to seasickness in a catamaran because there's less pitching and a cat doesn't roll from swell to swell as it happens in a monohull. That's not all; walking on the deck of a catamaran is a lot easier and safer since the boat is flat. This makes reefing much easier and safer and your chances of falling overboard are greatly reduced. More importantly, it's more pleasurable to sleep in a catamaran because it never heels.

In terms of ride comfort, a monohull offers smooth sailing as it doesn't slap or pound the water like a catamaran. This is because it works harmoniously with the sailing element and doesn't fight it like a catamaran, especially when sailing upwind. However, seasickness brought about by constant rolling and pitching of a monohull.

Verdict: If you want to have a comfortable sailing ride, a catamaran has many benefits than a monohull as long as it has a superb bridge deck clearance that disperses wave action.

Maintenance

A catamaran is general designed with two of everything. From the two hulls to the two engines, you seem to get things double, which can be reliable when sailing if there's an issue with one part. In other words, you always have a backup.

However, the costs of maintenance can be high if you have to maintain the boat, even though you can still use one part if the other part isn't working.

The fact that you only have single parts means that you have to be very careful and ensure that your monohull vessel is maintained or repaired regularly. Fortunately, the costs of maintenance and repairs are greatly reduced when compared to those of a catamaran.

Verdict: It's highly doubtful that you'll take your catamaran out if one of the two hulls or engines are faulty. The monohull wins this.

The costs of a catamaran are substantially high since everything seems to come in pairs. However, catamarans are known to have high resale values, very low depreciation rates, and can sell a lot faster than monohulls because they're more popular with modern sailors. But because catamarans aren't widely manufactured in the United States, their costs are still high as you'll have to include the delivery costs.

When deciding to buy a monohull vessel, you should keep in mind that they're widely available on the market so their costs might be a bit lower compared to catamarans. Again, their low maintenance cost will work to your advantage.

Verdict: The costs of buying and maintaining a monohull are quite low, so it's the best choice if you're on a tight budget but still want to enjoy sailing. Catamarans are very costly to build and are more expensive than monohulls.

The amount of deck space afforded by a catamaran is huge and always very spacious. The amount of space that a cat can afford you is one of the main reasons why you should choose it if you're looking for comfort or planning to live aboard the vessel.

On the contrary, monohulls are narrower when compared to catamarans; hence they have a very limited deck space. This is particularly mitigated by the fact that they have additional storage space.

Verdict: A catamaran has a lot more deck space and wins on this.

Load Distribution

Unlike monohulls, catamarans are rectangular and are more stable. This is essential in giving the passengers more freedom without necessarily having to worry about how their weight is distributed inside the boat.

A monohull is almost similar to standing on one leg and balancing can be quite overwhelming. This means that the weight of the passengers will have to be evenly distributed to ensure that the boat is balanced. Of course, this will limit the freedom of passengers and any imbalance might make the boat capsize.

Verdict: You don't have to worry about load distribution in a catamaran but this can be a negative issue in a monohull.

Fuel Efficiency

If you want to save money by reducing the fuel costs, a catamaran is an ideal option. A cat generally experiences little drag or resistance and doesn't need lots of fuel to move. They also have a steady rise in speed, which means that there will be no sudden increase in fuel consumption.

In comparison, the level of drag created due to greater displacement in a monohull vessel means that there will be a higher resistance and this translates to higher fuel consumption.

Verdict: A monohull consumes more fuel than a catamaran, so a cat is an ideal option if you're looking for fuel-efficiency.

In Conclusion

To this end, it's easy to see that a catamaran comes out on top as the best option on many fronts. This doesn't mean that a monohull doesn't have its advantages. Of course, it has both advantages and disadvantages just like a catamaran does.

And even though the catamaran comes out on top, the final decision is on you and may depend on your personal preferences. Whatever you choose, make sure that you enjoy your sailing vacation.

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I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

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Monohulls vs. Catamarans: Which One is Best for You?

If you’re considering purchasing a sailboat, you might be wondering which type of vessel is best suited for your seafaring adventures. Fear not, for we’re here to help you weigh the differences between monohulls vs. catamarans to make an informed decision.

Now, before we dive into the nitty-gritty details of hull design, sail handling, and the like, let’s take a moment to appreciate the quirky personalities of these two boats. Sloop rigged monohulls are the classic, old-school sailboats with a single mast and a triangular sail. They’re like the wise old grandpa who’s been sailing the seas for decades and has plenty of stories to tell. On the other hand, catamarans are the younger, hipper cousins of the boating world. With their twin hulls and sleek designs, they’re like the trendy millennials who are always up for an adventure.

But enough with the stereotypes, let’s get down to business. In this article, we’ll explore the pros and cons of monohulls and catamarans across various factors such as stability, maneuverability, accommodations, and cost. By the end of it, you’ll have a better idea of which boat is best suited for your sailing style and preferences. So, hoist the anchor and let’s set sail!

What are classic monohulls?

Let’s start with the basics – what exactly are classic monohulls? Well, sloops. To put it simply, a sloop is a type of sailboat with a single mast and a fore-and-aft rigged mainsail. But there’s more to these boats than meets the eye.

Sloops are the OGs of the sailing world, tracing their roots back to the 17th century. They were the go-to boats for explorers, pirates, and adventurers alike, with their simple yet effective design making them perfect for long journeys at sea. Nowadays, they’re still a popular choice for sailing enthusiasts who appreciate the classic, traditional look and feel of a sloop.

One of the defining characteristics of a sloop is its versatility. They come in a range of sizes, from small day sailers to larger offshore cruisers, and can be easily handled by a single sailor. Their rigging is relatively simple, making them a great option for beginners or those who prefer a less complicated sailing experience. But don’t let their simplicity fool you – sloops can pack a punch when it comes to speed and performance upwind.

Of course, there are some downsides to monohulls as well. Due to their single-hull design, they can be less stable in high winds or rough seas. They also tend to have less living space below deck compared to their bigger brothers. But if you’re looking for a classic, reliable, and versatile sailboat, a monohull might just be the vessel for you.

What are catamarans?

Now let’s talk about the other contender in this seafaring showdown – catamarans. These boats are a bit like the cool kids in high school – they’re sleek, modern, and always turning heads.

So, what exactly are catamarans? Well, to put it simply, they’re boats with twin hulls that are connected by a platform. But don’t let their basic design fool you – these boats are anything but ordinary. Catamarans come in a range of sizes, from small day boats to luxurious yachts, and offer a unique sailing experience that’s hard to beat.

One of the biggest advantages of catamarans is their stability. With two hulls instead of one, they’re less likely to tip over or roll in rough waters. This makes them a popular choice for families or those who prefer a smoother sailing experience. They also have more living space above and below deck compared to monohulls, with spacious cabins, lounges, and kitchens that are perfect for extended trips.

But let’s not forget about performance – catamarans are no slouches when it comes to speed and agility. Their twin hulls create less drag in the water, allowing them to glide through the waves with ease. And with their sleek, aerodynamic designs, they can often outpace traditional monohull boats.

Of course, catamarans do have their downsides as well. They can be more complicated to handle compared to monohulls, and require more space to in marinas or docks. They also tend to be more expensive than other types of sailboats, but hey, you can’t put a price on luxury.

Hull design

Per definition, the hull design is the biggest differences between monohulls and catamarans.

Let’s start with monohulls. These boats typically have a single hull that’s shaped like a long, narrow tube. This design allows them to slice through the water with ease, making them great for speed and agility. The hull is usually rounded or V-shaped at the bow, which helps to cut through waves and reduce drag. At the stern, the hull flares out to create a wider, more stable base.

Now, onto catamarans. These boats have two hulls that are connected by a platform, giving them a unique look and feel. The hulls are usually wider and flatter than those of monohulls, which provides a greater amount of stability. This can be especially beneficial for those who are prone to seasickness or prefer a smoother sailing experience. The flat shape of the hulls also creates less drag in the water, allowing for higher speeds and better maneuverability.

When it comes to sailboats, stability is crucial for a comfortable and safe journey on the high seas. So, which type of boat – monohulls or catamarans – reigns supreme in this category?

Well, let’s start with monohulls. These boats have a single hull, which means that their stability comes from the shape and weight distribution of the hull. Generally speaking, monohulls tend to be less stable than catamarans, especially in rough waters. This is because the single hull has to work harder to maintain balance, and can be more prone to tipping or rolling.

With two hulls connected by a platform, catamarans are the kings and queens of stability. The twin hulls provide a wider base and more buoyancy, making them less likely to tip over or roll in rough conditions. This can be especially beneficial for those who are new to sailing or prone to seasickness.

Maneuverability

Let’s talk about maneuverability – the art of smoothly navigating your vessel through the choppy waters. When it comes to monohulls vs. catamarans, the level of maneuverability can vary depending on the design and size of the boat.

Starting with monohulls, these boats are typically designed for speed and agility, which can translate to better maneuverability in certain situations. Their narrow hulls and single keels allow them to slice through the water and make quick turns, which can be useful in tight spots or when navigating through busy marinas.

Now, onto catamarans. With two hulls and a wider beam, these boats can be more challenging to maneuver in tight spaces. However, they do have some tricks up their sleeves. For example, many catamarans have engines that can rotate 360 degrees, allowing for greater control and maneuverability in tight spots.

Of course, when it comes to maneuverability, the skill and experience of the captain also plays a big role. A skilled sailor can make even the most unwieldy vessel dance through the water with ease, while a novice may struggle with even the most nimble of boats.

So, whether you’re piloting a monohull or a catamaran, it’s important to keep your wits about you and stay alert to your surroundings. And if all else fails, just remember the time-honored sailor’s adage – “When in doubt, let it out!”

Accommodations

Starting with monohulls, these boats typically have a more compact interior layout, with limited headroom and sleeping quarters. However, this can be a trade-off for a sleeker and more agile vessel that can slice through the waves with ease. Plus, with some creative packing and organization, a monohull can provide all the basic amenities you need for a comfortable voyage.

With their wider beam and spacious design, catamarans offer more room for living and sleeping quarters, as well as additional amenities like a galley kitchen and a bathroom. This can make for a more luxurious and comfortable sailing experience, especially for longer voyages. In addition, the two-hull design offers more space on deck for dinner parties or sunbathing in the trampolines

Of course, when it comes to accommodations, everyone’s preferences are different. Some sailors may prefer the cozy intimacy of a monohull, while others crave the roominess and luxury of a catamaran. It all depends on your personal style and needs as a sailor.

Performance

Let’s delve into the topic of performance, which is a critical factor when selecting a sailing vessel. Each sailor may have a different perspective on what constitutes optimal performance, but generally speaking, it comes down to speed and efficiency.

When it comes to speed, catamarans have an advantage in downwind performance. Their wider beam and twin hulls give them more sail area and a greater ability to surf down waves, resulting in faster speeds. However, monohulls are often faster when sailing upwind, as their pointed hull allows them to sail closer to the wind.

The upwind angle is an important consideration for sailors, as it affects how close to the wind they can sail. sloop rigged monohulls are known for their ability to sail at a higher angle upwind, which can be a major advantage when sailing in areas with narrow passages or limited space to maneuver. Catamarans, on the other hand, may need to tack more frequently in order to reach their destination when sailing upwind.

Maintenance

When it comes to sailing, we all know that proper maintenance is key to keeping your vessel in tip-top shape. So, when it comes to choosing between a monohull vs. a catamaran, it’s important to consider the maintenance requirements for each type of vessel.

Monohulls generally have simpler systems and structures, which can make maintenance a bit easier and more straightforward. However, the tradeoff is that they may require more frequent maintenance and repairs due to their smaller size and simpler design.

Catamarans, on the other hand, can be more complex and may require more maintenance in terms of their twin hulls, rigging, and systems. However many important systems like engines, bathrooms, or water tanks are in both hulls which give you redundancy and options. Also, their larger size can make accessing and maintaining these components a bit easier.

Regardless of which type of vessel you choose, regular maintenance is a must. From checking and maintaining the sails and rigging to ensuring the engines and electrical systems are in good working order, taking care of your vessel will ensure that you’re able to sail safely and confidently.

When it comes to the cost of a sailing vessel, there are many factors to consider. Let’s take a closer look at how monohulls vs. catamarans stack up.

First off, monohulls are generally considered to be more affordable than catamarans, both in terms of the initial purchase price and ongoing maintenance costs. This is due in part to their simpler design and smaller size, which requires less materials and labor to build and maintain.

On the other hand, catamarans can be quite costly to purchase and maintain, especially if you opt for a larger or more luxurious model. The wider beam and heavier construction of a catamaran can also mean higher slip fees and storage costs at marinas. But don’t let that deter you! If you have the means and the desire for a more spacious and comfortable sailing experience, a catamaran might be worth the investment.

Of course, the cost of a sailing vessel is just one piece of the puzzle. You’ll also need to consider other expenses like fuel, insurance, and ongoing maintenance and repairs. And let’s not forget the most important cost of all: the cost of living your best life on the open sea!

So weigh your options carefully, and remember that the true value of a sailing vessel goes far beyond the price tag. May the winds of fortune guide you to the vessel of your dreams, and may you sail with joy and a full wallet!

Resale value

Resale value is an important consideration when it comes to buying any type of vessel, and monohulls and catamarans are no exception. Generally speaking, catamarans tend to hold their value better than monohulls due to their popularity among sailors and their reputation for being spacious and comfortable. However, resale value can also depend on the specific make and model of the boat, as well as its age, condition, and location.

Of course, there are always exceptions to the rule. Some monohulls may have a cult following and fetch a higher price on the resale market, while some older catamarans may not hold their value as well as their newer counterparts. Additionally, factors such as maintenance, upgrades, and customization can also affect resale value.

In conclusion, when it comes to monohulls vs catamarans, there is no one-size-fits-all answer. Each boat has its own advantages and disadvantages, and the decision ultimately depends on your personal preferences, needs, and sailing goals. If you have the money, looking for a faster ride downwind and don’t mind sacrificing a bit of upwind performance, a catamaran might be the way to go.

Resale Value

On the other hand, if you want something cheaper, prioritize sailing close to the wind and want a boat that is more easily handled in a variety of conditions, a sloop rigged monohull might be the better choice. Of course, other factors such as accommodations, and maintenance also play a crucial role in the decision-making process.

So whether you prefer the sleekness of a monohull or the stability of a catamaran, make sure to consider all the options and weigh the pros and cons carefully before making your final choice. And as with any big decision, it never hurts to consult with experienced sailors, boat dealers, or brokers to get their expert opinions. Happy sailing!

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• Catamaran vs. Monohull: What Type of Boat is Right for You?
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• Catamaran vs. Monohull - which one should you choose?

When you are planning a sailing holiday, you’ll be faced with a choice; catamaran vs. monohull. Each type has many benefits, but it’s important to think about what your needs are because that will tell you just which one to pick!

Let's dive right in!

Ease of sailing

Maneuverability, space/layout, holiday vibe.

You may also like:  Sailing holiday destinations for your next boat trip

One of the top considerations you should have is what type of sailor you are because catamaran vs monohulls offer a distinctly different sailing experience. If you are a first time sailor and just want something incredibly easy to handle, then a catamaran will probably win out. 

Catamarans have great control when it comes to maneuvering in tight places. Since they have twin engines and rudders, you get a lot of control and can turn pretty much 360 degrees with ease.

Catamarans also have a shallow draft, which will allow you to explore much closer to the shoreline than a monohull would be able to venture. 

In the catamaran vs monohull speed debate, it might be more of a draw. Catamarans are typically 25-30% faster than a comparable monohull, but some argue that it comes at a price. When catamarans are sailing full speed you might experience a lot of slapping from the waves. Monohulls are designed to cut through the water. Also note that catamarans can be inefficient upwind and tack slowly. 

When considering sailing conditions , a catamaran vs monohull in rough seas will perform very differently. 

During rough sailing, you must be more vigilant when on a catamaran. The feedback from the wheel of a cat is not as obvious as that from a monohull. In high winds, you’ll need to know when to reduce sail. 

However, monohulls tend to roll more in stormy weather, while catamarans stay pretty level even in rough seas.

When thinking about catamaran vs monohull stability, the stability that catamarans offer is a huge draw for many. Since cats bounce with the waves less, it is easier to walk around and enjoy the yacht while in motion. The increased stability is also great for children, or seniors, or anyone who might be prone to seasickness. When it comes to catamaran vs monohull seasickness, catamarans come out on top.

Although it is worth noting that monohulls swing less than catamarans if placed side by side in an anchorage.

If you’re deciding on a catamaran vs. monohull, you’ll have to think about what type of group you have. For family sailing holidays , maybe a catamaran is the best choice. Catamarans are very spacious, offering a large living space, and many cabin/head options. This makes them optimal for parties that want to spread out. Whether you’re a family, a big group of friends, or even couples looking for a 5 star, luxury experience who appreciate the extra space and comfort even if it’s not needed, a catamaran can fit your needs.

If thinking about catamaran vs monohull liveaboard readiness, the catamaran is a top contender. With far more living space and a much more spacious kitchen, Catamarans are great for people and groups that want to focus on entertainment and lounging.  

Catamarans also typically have more spacious cabins and more privacy due to the layout with the cabins separate from the living area. This way you can send the kids to bed, and still enjoy the kitchen, dining, and living area. 

While catamarans are often touted for being roomy and luxurious, it’s worth nothing that monohull yachts can also be large and luxe. The Oceanis 62 and the Jeanneau 64 are top choices for those who want to live in the lap of luxury during their sailing holidays , while still getting that real sailing yacht experience.

In terms of catamarans vs monohull price , a monohull will definitely win. Charter prices for a catamaran can be 50-100% higher than that of a comparable sailing yacht. But that can be boiled down to the fact that you’re getting more space and more equipment with a catamaran! 

A monohull, will only have one of everything - like it’s name suggests. It has one hull, one engine, one rudder, whereas a catamaran has twice the equipment and twice the living space of a monohull of the same length.

Another catamaran vs monohull cost to consider is the mooring costs. A catamaran, due to its twin hulls, might use two spots. Monohulls take less space to moor, and will be less expensive in that regard. 

The cost of fuel should also be a consideration and in the question of catamaran vs monohull fuel efficiency, catamarans are the winner. With easy to drive hulls, and super light weight, they have great fuel efficiency. 

Lastly, there is an abundant supply of monohull charters yachts, so the charter costs tend to be less to match the demand. 

In the end, what it all comes down to is preference. In terms of performance, price, and comfort, catamarans and monohulls both have a lot going for them. You just need to decide what kind of holiday vibe you’re looking for, and Yacht4Less can help you with the rest! 

At Yacht4Less we recommend fully crewed catamaran charters if you’re looking for top-of-the-line luxury and a super relaxing holiday where you don’t have to lift a finger. These boats will offer the space and comfort you’d expect from a 5-star hotel. 

If you’re looking for a hands-on sailing adventure holiday, you might want to do a skippered charter with a monohull.. Your captain can show the ropes and help you learn how to sail. Or if you’re already an experienced sailor, go for a bareboat monohull charter . The exhilarating feeling of sailing a monohull is unmatched. It’s the classic romantic sailing experience, and makes for a thrilling holiday. 

For those looking for a sailing experience somewhere in between extravagant luxury and exciting escapades, Yacht4Less is here to help you find the perfect boat for your needs.  More sailing holiday dilemmas? We got you covered! Sailing Holidays vs. Land-Based Holidays  » Party Sailing vs. Natural Wonders  »

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Catamaran vs Monohull in Rough Seas: Which is Better?

Catamarans and monohulls have different designs that affect how they handle rough sea conditions. In fact, they have an advantage over each other when sailing in heavy seas. Let's try to compare each type of vessel based on their performance, design, and stability, to help you decide which can give you a safer and more comfortable journey on the open water.

Regarding speed, efficiency, and stability, a catamaran may be the better option for you. Because they have twin hulls, they are more comfortable to sail in rough seas. A monohull can become more advantageous in rough seas when sailing upwind since it can point higher into the wind and can handle strong winds easily.

Catamarans with two rudders also allow for better control and maneuverability in rough seas compared to monohulls, which only have one rudder. Let's look at more of the comparison between these two types of boats when sailing through big waves in the sea.

• When it comes to stability and comfort, catamarans can provide more stability. They are also less likely to cause seasickness and offer more living space and privacy.
• In terms of speed, catamarans are also faster than monohulls because they have a smaller displacement. Their structure also makes them less likely to capsize or sink.
• A monohull is advantageous when it comes to sailing upwind, and handling stronger winds. Their deep keel also provides them with increased stability and reduces drag, which can be an advantage in rough seas.

Catamarans Vs. Monohulls in Rough Seas

If you're planning to buy a boat, and you're deciding whether to go for a catamaran or a monohull, one of the many things you may need to consider is how they perform in rough seas. Rough seas can be challenging for any vessel, but some boats are better equipped to handle them than others. Below is a table summarizing how well these boats perform in rough seas:

A catamaran is a boat with two hulls connected by a deck. Because they have two hulls , catamarans are known for their speed, stability, and spaciousness. They are often used for cruising and chartering, as well as racing. They also have a wider beam than monohulls, which means they offer more living space and stability. They are less likely to heel or tilt to one side, are more buoyant, and have a shallow draft.

On the other hand, monohulls are the most common type of boat with only one hull. They are known for their simplicity, versatility, and affordability. Monohulls are often used for day sailing, racing, and cruising.

When it comes to rough seas, catamarans are generally more stable than monohulls in terms of roll stability. Monohulls, on the other hand, are better at handling heavy seas and high winds, but they can be more prone to rolling and pitching, and can significantly heel more than a catamaran.

If you are aiming for speed, efficiency, and stability, then a catamaran may be the better option for you. They are generally faster and more efficient due to their twin hulls, and their stability can make for a more comfortable ride in rough seas.

On the other hand, if you prioritize upwind sailing performance, sailing feels and responsiveness, and the traditional look and feel of a sailboat, then a monohull may be the better option for you. Monohulls sail closer to the wind and have a unique feel to them that some sailors prefer.

Detailed Comparison Between Catamaran And Monohull

Catamarans provide better stability and comfort

Catamarans are more stable, less likely to cause seasickness and offer more living space and privacy. Below is a table summarizing why catamaran is more advantageous in this category:

In terms of motion in rough seas

Catamarans are more stable in rough seas because they have two hulls instead of one. This means that they are less likely to roll or heel, which can make for a more comfortable ride. Monohulls, on the other hand, tend to pitch and roll more in rough seas.

In terms of handling seasickness

If you are prone to seasickness, a catamaran may be a better choice for you. The stability of a catamaran means that it is less likely to cause seasickness than a monohull. Additionally, the living space on a catamaran is often spread out between the two hulls, which can help to reduce the feeling of confinement that can contribute to seasickness.

In terms of living space and privacy

Catamarans also tend to offer more living space and privacy than monohulls. Because the living space is spread out between the two hulls, each hull can function as a separate living space. This can be especially beneficial if you are traveling with a group of people and want to have some privacy.

Both boat types have specific advantages in performance and speed

A catamaran is generally faster and more stable than a monohull, but a monohull can be easier to handle in certain conditions.

In terms of navigating upwind

When sailing upwind, a monohull has the advantage over a catamaran due to its ability to point higher into the wind. This means that a monohull can sail closer to the wind than a catamaran, which will need to tack more often. However, a catamaran can make up for this disadvantage with its speed. A catamaran can sail faster than a monohull , which can help it to cover more distance in less time.

In terms of handling strong winds

In strong winds, a catamaran is generally more stable than a monohull due to its wider beam. This means that a catamaran is less likely to heel over, making it more comfortable for passengers. However, a monohull can be easier to handle in strong winds due to its ability to reef the sails. By reducing the sail area, a monohull can reduce the amount of wind it catches, making it easier to control.

Catamarans and monohulls have different designs and function

Catamarans offer more deck and cabin space, shallow draft, and increased buoyancy, while monohulls have a deeper draft, reduced drag, and increased stability.

In terms of the deck and cabin space

One of the advantages of catamarans over monohulls is their wider beam, which provides more deck space. This means more room to move around and increased stability, which is important in rough seas.

Additionally, catamarans usually have two hulls, which means more cabin space and privacy for the crew and passengers. On the other hand, monohulls have a single hull, which means less deck and cabin space. However, monohulls usually have a deeper draft, which allows them to sail closer to the wind and tack more efficiently.

In terms of draft and buoyancy

Catamarans have a shallow draft, which means they can sail in shallow waters and anchor closer to shore. This makes them ideal for exploring shallow coves and bays. Also, catamarans have two hulls, which provide increased buoyancy and stability in rough seas.

Monohulls, on the other hand, have a deeper draft, which makes them less suitable for shallow waters. However, their deep keel provides increased stability and reduces drag , which can be an advantage in rough seas.

Both boat types have unique safety considerations

Safety is a top priority when sailing in rough seas. Catamarans are generally more stable and easier to control, while monohulls have a greater risk of capsizing but are also more maneuverable in certain situations.

In terms of the risk of capsizing

One of the biggest safety concerns when sailing in rough seas is the risk of capsizing. Catamarans have two hulls, which make them more stable than monohulls. This means that they are less likely to capsize in rough seas. Catamarans are also technically unsinkable , meaning that they will not sink even if one hull is damaged or flooded.

On the other hand, monohulls have a keel and ballast, which provide stability but also increase the risk of capsizing. If a monohull capsizes, it can be difficult to right the boat and prevent it from sinking.

In terms of navigational control

Catamarans have two rudders, which provide additional control and maneuverability in rough seas. This means that you can steer the boat more easily and avoid obstacles like rocks and other boats. Meanwhile, a monohull only has one rudder.

However, despite the number of rudders involved, the ability to control and maneuver the boat, whether a catamaran or a monohull, still depends on the design and construction of the boat, as well as the skill of the captain and crew in handling the boat.

Other practical considerations when choosing between catamaran and monohull

In terms of docking and anchorage

Docking and anchorage can be easier with a catamaran due to the wider beam, which provides more stability. However, catamarans can be more difficult to maneuver in tight spaces due to their size. On the other hand, monohulls are generally easier to maneuver in tight spaces, but they may be less stable in rough seas.

For docking costs, catamarans tend to have higher docking rate costs due to their size and wider beam. Read this article to know more about the costs of docking a catamaran in different locations.

In terms of storage and equipment

Catamarans typically have more storage space than monohulls due to their wider beam and larger deck area. This means they can carry more gear and supplies, making them a good choice for longer voyages or liveaboard situations. They can accommodate larger equipment such as dinghies, kayaks, and paddleboards - making them a great choice for water sports enthusiasts who want to bring their gear along.

Monohulls, on the other hand, have less storage space due to their narrower beam and smaller deck area. This means they are better suited for shorter trips or day sailing, where less gear and supplies are needed. Monohulls may also be better suited for certain types of equipment, such as fishing gear or diving equipment, due to the layout of the boat.

In terms of crew accommodations

Catamarans tend to have more spacious accommodations than monohulls, which can be an advantage for longer trips or when traveling with a larger crew. However, monohulls may offer more privacy for individual crew members due to the separate cabins and tighter quarters.

Catamarans generally have more living space than monohulls so they can offer more room for sleeping, lounging, and cooking, which can be especially beneficial for larger crews or families. They also often have large, open salons and cockpits that allow for easy socializing and entertaining. This can be a great feature for crews who enjoy spending time together.

Monohulls, on the other hand, have less living space than catamarans due to their narrower beam. This means they may be better suited for smaller crews or shorter trips. They often have cabins located closer together, which can make it easier to communicate and work together as a crew, which is a plus for racing or cruising in crowded areas.

Choosing boat type based on personal preferences

In terms of aesthetics and personal taste.

One of the first things that come to mind when choosing between a catamaran and a monohull is aesthetics. Both types of boats have their unique look, and it is up to personal preference which one you find more appealing. Some people prefer the sleek and modern look of a catamaran, while others prefer the classic look of a monohull.

Another thing to consider is personal taste. If you are someone who prefers a more spacious and open boat, then a catamaran might be the right choice for you. On the other hand, if you prefer a more traditional sailing experience, then a monohull might be the better option.

In terms of suitability for families and couples

Basically, catamarans are known for their stability and spaciousness, making them a great choice for families with children or couples who want to have more space and privacy.

Monohulls, on the other hand, might not be as spacious as catamarans, but they offer a more traditional sailing experience. If you are a couple or a small family who wants to experience the thrill of sailing and doesn't mind being in close quarters, then a monohull might be the right choice for you.

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The market for monohull sailboats is a lot bigger than that of catamarans, which is one of the reasons why they are so much cheaper.

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Catamaran vs. Monohulls: Pros and Cons

Published Aug 30, 2021

Going on a trip but don’t know what boat to use? If you have been eyeing Catamaran and Monohull boats, you are in the right place. If you can’t choose between the two, knowing their pros and cons should help you decide. In this article, we will be battling catamaran vs. monohulls to determine which one is more suitable for you.

What is Catamaran?

A catamaran is a sailboat with multihulls that features two parallel hulls of equal size. This type of boat has been popular ever since because of its stability and size. In addition, vacationers tend to sail with catamaran boats because of their space above and below.

What are Monohulls?

Unlike catamaran boats, a monohull is a boat that comes with only one hull. Monohull boats are the most widely used form of waterborne vessel. Sailing in a monohull may satisfy a person’s inner sailor self and give them the whole sailing experience. In addition, this type of boat is cheaper than other boats since it only caters to one hull.

Since catamaran and monohulls are completely different boats, we should compare and contrast their characteristics.

Spaciousness

The multihulls of catamarans give the boat additional space for the galley, cockpit, and more rooms when it comes to space. Catamaran boats also feature shallower draft, smaller displacement, and less hull volume than monohull boats. Therefore, this boat is more spacious than a monohull boat. It should be what you’re looking for if you’re sailing with family or friends.

On the other hand, monohull boats provide limited space, and most spaces are below the waterline. This might be concerning, especially for non-sailors, like vacationers. However, long-time sailors are most likely used to this situation. In addition, a monohull is smaller than most catamarans since it only consists of one hull.

Stability and Comfort

Another advantage of having multi-hulls is inheriting more stability than a one-hull boat. Catamarans are less prone to rocking and heeling, which makes them an ideal boat for family vacations. Large families usually include kids or seniors that get out of balance easily. Sailing in a catamaran boat would surely be more comfortable for you. Catamaran also features a separated skipper cabin that separates the crew and boat guests. Some larger skipper cabins provide full equipment like an isolated shower, sink, and toilet. In catamaran boats, you can sunbathe, lounge, or even jump on a trampoline while onboard.

Monohull boats are obviously less stable than multi-hull catamarans. From the word “mono,” monohulls only have one hull, which makes it prone to being rocky than a multihull boat. A rocking boat might not be an ideal vacation boat for families. 

Here are the advantages and disadvantages of sailing for both boats:

Catamaran boats are often faster than monohulls when sailing downwind, reaches, and broad. Moreover, they have low bridge decks likely to slap on the undercarriage when the boat is sailing upwind. That is what slows the speed of the catamaran boats.

Monohulls sail through water without any slapping or pounding that may slow down the boat. They tend to be faster than catamaran boats when going upwind since the slapping slows down the multihull.  

Pounding and slapping

Multihulls are made so that guests and sailors can get the most out of their vacation. That is why producers of catamarans try their best to add as much platform in the boat as the low bridge deck. Unfortunately, the low bridge deck of a catamaran tends to pound and slap the undercarriage of the boat, especially when sailing upwind. Some people find the pounding and slapping sound annoying. 

Monohulls don’t have a low bridge deck, so sailing comes smoothly for monohull boats. Monohull guests wouldn’t have a problem with the noise at all. 

Maneuvering and docking

Multihulls are powered by two engines. Having two engines can be extremely helpful when it comes to an emergency. These engines make it possible for the boat to rotate to a full 360 degrees. Catamarans also have two rudders which makes it easier to dock the boat. 

Monohulls are easier to maneuver because of their size. However, the monohull only consists of one engine for the whole boat. The engine of the monohull can be combined with a front bow thruster so the yacht/boat can move sideways, which is helpful for tight spaces. This function makes it easier for the sailor to dock the boat.

Catamaran boats are more expensive than most monohulls because of their features. They are known as a high-quality boat that reassures sailor’s guests that it’s safer than most boats and costs a lot of building materials as catamaran boats are more spacious. Catamaran boats may cost more because it’s a high demand boat. The cost for docking for this type of boat also costs double the price of a monohull since it’s bigger.

Monohulls usually cost cheaper than most catamaran boats because of the monohull’s building materials. Multihull boats typically need to double the building materials required for a catamaran. Therefore, monohull boats with the same sleeping capacity and equipment as the catamaran may cost cheaper than buying a catamaran.

Catamaran vs. Monohulls: What to Choose?

Catamarans are more expensive, but it’s a family vacation-friendly boat that offers a lot of advantages. On the other hand, monohull boats are cheaper, simpler, and perfect for aspiring sailors. In the end, it all comes down to the person’s preference, budget, and what suits their needs. So I will ask you, catamaran vs. monohulls? (Related: What to Know Before Renting a Catamaran Charter )

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Catamarans - Monohulls: Pros and Cons

With catamarans vastly popular in the charter industry, and showing no sign of abating, let's compare the pros and cons of monohull and catamaran strictly on the charter work point of view . The reason why this distinction is important – and I write this as a monohull fanatic myself - is because for charter companies, catamarans are in huge demand due to the overwhelming number of advantages they offer. Out of charter use, there is no question for me that, when the offshore going gets tough, I would much rather be on a solid monohull than on a catamaran - although the catamaran builders have come a long way to strengthen comstruction. But this is just a matter of opinion!

Catamaran Pros

On deck The cockpit, highlight of catamarans, is usually huge, since it spans over both hulls. The cockpit and the salon are on the same level, which enhances the feeling of light and spaciousness, along with the typical huge panoramic windows. The foredeck area is very large as well and sports a big pair of nets between the hulls, the notorious trampolines, which make a great sun bathing area. In any case, it is a great observation spot and a kids' favorite. As a result of this roominess, a catamaran rarely feels crowded, as it is relatively easy to get some seclusion and quietness from other members of the party. Most cats are equipped with dinghy-davits at the transom, which is absolutely great: no more towing the dinghy, thus no more drag on the boat speed.

Down below The catamaran will provide you with considerably more room than a monohull almost everywhere on the boat: in the cabins and in the salon. Besides, there is ample headroom everywhere. A typical 43/47 ft. cat will have 4 large staterooms, with rectangular queen-size beds – no more of those pointy beds! - each with en-suite bathroom. A 38 to 42ft. will have 3/4 staterooms and 2/3 bathrooms. Most cats have an enormous salon/cockpit combination capable to entertain about 20 people in style! Because of the cats’ layout configuration, there is full privacy in every cabin and one does not hear anything from one cabin to the other.

Stability The key fact is that catamarans have a phenomenal stability: they do not heel under way and do not roll at anchor. This usually makes seasickness a non-event. Incidentally, it makes it somewhat safer for kids running around. Whether at anchor or under way, a catamaran is always much more stable than a monohull. Stability is also a good factor for elderly people and/or first time sailors. As a matter of fact, a catamaran will give the latter an excellent impression for their first cruise, instead of memories of being seasick!

Speed & maneuverability There is no question that catamarans are faster under power or sail. Whatever your cruising goals are, catamarans will usually move you about more quickly than a monohull. Catamarans have shallow drafts. This means catamarans can get into places monohulls yachts often cannot reach, and that they can also anchor closer to shore. However, more and more charter cats now have small "sacrificial" keels to improve close-hauled performance. Lastly, I personally enjoy the phenomenal maneuverability of the cats. With 2 engines spread apart, you can pivot a cat of any size literally around the boat's central axis – and without the help of the rudders. The autopilot works particularly well on cats, on a tracking standpoint.

Catamaran Cons

A hard-core monohull sailor once said: "When I sail a cat, it feels like I am driving my living room!" He meant that a cat does not convey the "real" feeling of sailing, with the "rail in the water" as sailors say. That is precisely because a cat does not heel, whereas a monohull does, and sometimes a lot. So if you are in for hard, pure sailing, you will not get that felling on a cat. Only a monohull will give you the full experience!

A cat does not typically sail well upwind and needs a different technique for tacking and anchoring. ( See tips for cat handling ).

It is often said that anchoring a catamaran can be more difficult. This is due to the fact that catamarans have more “windage” than monohulls, and, without keel and ballast, they have a tendency to “bob” on the water when a gust hits. ( See tips for cat anchoring )

Obviously, catamarans take up twice as much docking space as monohulls. This can be a bit of a problem in chartering areas where spending nights in marinas is a necessity.

If you are bringing with you a party of first-time sailors, or older people, or people who could feel apprehensive at sea, you probably will better off with a cat.

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Catamaran vs. Monohull Fishing Boats - Which is Better

Dec 14, 2023

less than a min

When selecting a fishing boat, anglers face a significant choice that can impact their experience on the water. The type of boat you choose - be it a catamaran or a traditional monohull - plays a pivotal role in defining your fishing adventures. Both catamaran and monohull boats have distinct features and advantages, and understanding these differences is key to finding a vessel that aligns with your fishing style and preferences. Whether you're a seasoned angler or just beginning to navigate the world of fishing, we'll help guide delves into the nuances of catamaran and monohull fishing boats.

Catamaran Fishing Boats: Stability Meets Performance

What are catamaran fishing boats.

Catamaran fishing boats, with their distinctive multihull design, are gaining acclaim among anglers for their exceptional stability and comfort, particularly in challenging sea conditions. The dual-hull structure of these boats not only reduces water resistance, leading to improved fuel efficiency but also ensures a smoother ride. For instance, the "Offshore Fishing Catamarans," which typically range from 20 to 40 feet in length, are equipped with features tailored for serious anglers, including fish boxes, live wells, and rod holders. These boats are adept at handling rough offshore waters, making them ideal for pursuing species like king mackerel or wahoo.

Offshore Fishing Catamarans

Design : Power catamarans , designed for offshore use, are equipped with features like fish boxes, live wells, and rod holders, essential for serious anglers.

Handling Rough Waters : They excel in handling choppy offshore waters, making them suitable for trolling species like king mackerel or wahoo.

Versatility : Not limited to saltwater, they are also effective in large freshwater systems like the Great Lakes.

Comfort for Extended Trips : Many models offer cabins for overnight stays, enhancing their appeal for longer fishing expeditions.

Average Length : 20 to 40 feet

Propulsion : Twin outboard engines

Capacity : 8 to 10 people

Hull Type : Multi-hull

Another notable example is the "Small Fishing Catamaran," averaging between 8 and 14 feet. These smaller variants offer enhanced stability and buoyancy compared to traditional flat-bottom boats and are particularly suitable for shallow water fishing. Their lightweight and easy-to-transport nature, combined with the option for paddle or small outboard motor propulsion, make them a great entry-level choice for new boaters.

Small Fishing Catamaran

Ideal for Beginners : These boats offer an entry-level option with better stability and buoyancy than flat-bottom boats.

Shallow Draft : Their shallow draft allows easy beaching and shore pull-up, ideal for coastal fishing.

Average Length : 8 to 14 feet

Propulsion : Outboard engine or paddle

Capacity : 1 to 3 people

Both types of catamarans exemplify the blend of practical design and angler-centric features, making them a compelling choice for a wide range of fishing activities.

Monohull Fishing Boats: The Traditional Choice

Monohull fishing boats, revered as the traditional choice in the angling world, have long been the backbone of the fishing community. Characterised by their single-hull design, these boats offer a classic approach to fishing, blending time-honoured maritime traditions with modern advancements. Monohulls are known for their straightforward handling and predictable performance, making them a familiar and reliable option for many anglers. Their design allows for deep V-hulls that can cut through waves, offering a smooth ride and a distinct fishing experience. 

Advantages of Monohull Fishing Boats

Space Utilisation : Monohulls offer a larger single space below the waterline, allowing for bigger cabins and storage areas.

Roll Period : They have a slower roll period, which means the motion is less abrupt compared to some catamarans.

Predictability : Handling characteristics are more consistent and predictable.

Variety and Resale : There's a broader selection of monohulls available, and they tend to be easier to resell.

Monohull Disadvantages

Stability Issues : They can lean significantly with weight shifts on the deck.

Bowrise and Steering : Monohulls experience noticeable bowrise when coming onto plane and may exhibit bow steering.

Catamaran vs. Monohull: Which is Better for Fishing?

Handling and maneuverability.

Catamarans are highly manoeuvrable due to their dual engines and hulls, offering better control, which is crucial when fishing in tight spots or near structures.

Monohulls have predictable handling, but their performance can vary significantly based on the design and sea conditions.

Space and Amenities

Catamarans provide more living space, making them suitable for extended trips and anglers who prioritise comfort.

Monohulls have more space below the waterline, which can be advantageous for storage and cabin size.

Draft and Accessibility

Catamarans, with their shallow draft, allow access to areas that might be challenging for some monohulls.

Monohulls might have limitations in shallow waters but often perform better in deep sea conditions.

Economy and Maintenance

Catamarans are generally more fuel-efficient, but they may have higher maintenance costs due to their dual systems.

Monohulls are traditionally less expensive to purchase and maintain but might not offer the same fuel efficiency as catamarans.

Tailoring to Your Fishing Style

The decision between a catamaran and a monohull fishing boat should be based on your specific fishing style, preferred locations, and comfort requirements. Catamarans are ideal for anglers seeking stability and comfort in various water conditions, while monohulls are suitable for those who prefer traditional handling and may not require extensive space. Ultimately, the right choice will enhance your fishing experience, ensuring safety, efficiency, and enjoyment on the water. Whether you're drawn to the traditional charm of monohulls or the stability of catamarans, TheBoatDB provides a user-friendly platform to assess each option side-by-side. Visit TheBoatDB to delve deeper into the specifics of each type and discover the boat that perfectly aligns with your fishing style and needs.

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Catamarans vs. Monohulls

Which is better, a monohull or a catamaran.

This question gets asked a lot in sailing. Especially if you are looking to take your friends or family out for the week: which will be better, a catamaran (aka cat) or monohull (aka mono)? The short answer is it depends what sort of experience you are looking for. Let's explore this further.

Tell me more about monohulls and catamarans.

Monohulls are boats that have one hull. They are the classic sailing yachts that you see old black & white photos of, racing off Newport or Cowes.

Catamarans on the other hand have two hulls. They tend to be newer, and are said to be less traditional, although some of the earliest sailing boats ever developed may well have been catamarans.

Image: monohull (left) and catamaran (right)

Things to consider

Now that we understand the difference between catamarans and monohulls, let's look at attributes that are important in sailing. Once we have explained these, we can look at how each boat-type deals with them:

For obvious reasons, you want to have a stable boat. Monohulls are a bit like a roly-poly doll, where when pushed over, they tend to right themselves. That is unless they reach what is termed the "angle of vanishing stability" or AVS. Catamarans deal with stability in a different way.

Catamarans tend to be much more stable in most conditions, but should they capsize, they quickly become stable, albeit upside down.

Nevertheless capsizing is such a rare occurrence that "stability" here really means comfort when sailing.

Angle of Vanishing Stability (AVS) graph, image thanks RYA: rya.org.uk

Living area

Your boat needs to strike a balance between sailing well and being comfortable to spend time in. The layout of the boat is important in this regard: what level it is on, how large it is, and how square the space is.

Lagoon 450 Living Area. Image thanks vivisail.com

The draft of a boat is how far in the water it goes. "How much does she draw" means "what is the minimum depth of water that this boat needs so she doesn't go aground". Monohulls by definition require a keel, a heavy piece of iron or lead that goes deep into the water. Catamarans do not require this, and therefore tend to have a "shallower draft".

Draft and Freeboard explained. Image thanks thecampfirecollective.com

Maneuverability

Being able to easily maneuver your boat is clearly an advantage in tight situations, such as when docking in a crowded marina. Both monohulls and catamarans have their pros and cons here, which will be explained further below.

Maneuverability, image thanks Cruising World (cruisingworld.com)

The speed of a sailboat is not as simple as for a motorboat. The angle of the wind has a large effect on the speed of a sailboat. Some boats can sail faster when close to the wind - monohulls normally fall into this category - while others can sail very fast when the wind is on their side (aka a beam reach) - catamarans usually like this sort of "reaching" sailing.

F50 catamaran in the fastest sailing competition in the world. Image thanks SailGP and James Wierzbowski

Having natural light and a decent view can make the living space much more comfortable. With monohulls, most of the living space is "down below" whereas for catamarans, most of the living area happens "up" in the saloon which is located between and above the two hulls. This creates two different environments. One person's "cozy" is another person's "claustrophobic". Just the same, one person's "light and open atmosphere" is another person's "soulless". So there is a fair degree of taste to this particular aspect.

Interior of the incredible Nautor Swan 48, image thanks Nautor Swan

"Feeling Sailing"

By this we mean the feel of the boat responding to the wind as she slices through the water. Some people sail for this feeling, while others simply sail as an ecological, efficient way to move from A to B. Monohulls and catamarans offer very different visceral experiences here.

WallyCento Tango sails off Monaco, image thanks Gilles Martin-Raget/Wally Yachts

In breaking down the pros and cons of monohulls and catamarans, we found that a pro for one was a con for another. With that in mind, we think it is more helpful to list the pros of each, so you only read it once. Here goes:

8 Pros to Catamarans

1. catamarans are inherently stable..

Two hulls provides a wide base, which means in most sea states, less "bobbing". Every now and then, when the space between wave tops is a certain distance, the cat can lurch. But this is more the exception than the rule.

Great illustration of reduced rolling on a catamaran, image thanks aeroyacht.com

Here are some more pros of stability:

• Stability is a big factor for families with young children or seniors. It suits "non-sailors" in the group;
• Stability is very helpful for those prone to sea sickness (although scopolamine patches are probably still required if someone is very susceptible to getting sea sick);
• Stability means things are more comfortable at anchor, and for cooking;
• Because cats don’t heel over nearly as much, storage and stowing of provisions and household items is much easier.

Apologies for resolution, a brilliant graph on catamaran stability, thanks sailingcatamarans.com

2. Catamarans have more space.

Catamarans generally have much more living space in the main salon, galley and cockpit, and in the cabins. This can allow for greater privacy when chartering with friends or children, as the two sleeping areas (one in each hull) are separated by the living area. Here are some more pros of space:

• More space on a catamaran for preparing food, which means the cooking experience tends to be less a balancing act, and more like the kitchen at home;
• More space on a catamaran for storing things, which means people are not tripping over them throughout the trip.
• The space on a catamaran is square-shaped, akin to an apartment, as opposed to a monohull which tends to be more rectangular.

Interior of a Lagoon 620, image thanks Indigo Bay Yacht Charters

3. Catamaran living space is above the water line.

On a monohull, almost all living space on a is at least partially below the water line, which limits light and view, and can lead to claustrophobia in some. Catamarans on the other hand, sit above the water line. In addition:

• Ventilation in the main saloon area on catamarans is generally excellent, given their above-water design.
• Most of the living quarters are also above the water line, which allows for more light and a better view, as well as better circulation of air.

4. Catamarans can venture into shallower areas.

The lack of keel on a catamaran results in a shallower draft, allowing to anchor in shallower water, which is especially valuable around reefs in the tropics.

Shallow draft of a catamaran, image thanks aeroyacht.com

5. Catamarans can turn on a dime.

Because catamarans have two engines and two rudders, maneuverability in tight spaces is improved, with most cats being able to turn 360º within the length of the boat.

6. Catamarans (usually) sail faster.

Without the need for a heavy keel, catamarans are lighter than an equivalent monohull. That, plus the fact that they keep their sails perpendicular to the wind, means they sail faster than monohulls, especially on a run or broad reach.

The magnificent HH66 catamaran, image thanks Sail Magazine

7. Catamarans are harder to sink.

Without the need for a lead-weighted keel, catamarans are not just lighter and faster, they are also harder to sink. Monohulls have been known to "lose their keel", by hitting something such as a semi-submerged container or even a whale. When this happens, the boat will tend to sink within minutes. Catamarans do not have a keel to lose, which means in this (admittedly very rare, blue-water) event, catamarans come out trumps.

8. Catamarans allow spooning.

Most catamarans have a trampoline or net at the front. This allows for spacious and comfortable cuddling under the stars - not to be underrated.

Monohull Pros

1. monohulls look great..

You can’t beat a monohull sailboat for good looks. Classic, sleek, beautiful, there is a timeless beauty to monohull sailboats.

Catamarans on the other hand have a “non-traditional” aesthetic that some consider to be a little harsher on the eyes. Let's face it, many are downright ugly.

2. Monohulls are a romantic, evolving tradition.

Do you love the old photos of well-dressed people sailing their immaculate wooden monohulls in beautiful surroundings? If you answer yes to this question, take a good look at monohulls. That romance and tradition is still there.

3. Monohulls give you more options.

Due to the sheer volume of monohulls made over the last century, there are many more options for a boat that meets your individual lifestyle, personal aesthetic, or budget.

4. Monohulls carry a lower cost.

• Monohulls take up half the space at a marina than catamarans, and therefore generally cost you half as much.
• Monohulls are more readily available used in good shape, and cost less to charter for equal sleeping capacity.

5. Monohulls sail better upwind.

Due to their keel, monohulls can sail higher into the wind than most catamarans. Some of the more exotic catamarans have daggerboards which serve the same purpose as a keel, and therefore improve windward performance substantially. However 95% of cruising cats (ie. those you can charter) do not have daggerboards. Furthermore:

• A monohull will be far easier than a catamaran to tack.
• Monohulls slice through the water effortlessly. On some catamarans you get an irritating slapping of water on the bridge decks in rougher seas.
• A monohull is generally faster to respond to the helm (in other words, they turn faster). This is because most cruising cats have little "spade rudders", with their depth dictated by the need to have a shallow draft. Whereas with a keel, a monohull can have a far deeper (read: more responsive) rudder for its draft.

Monohull sailing upwind, image thanks Sail Magazine

6. Monohulls give you more feedback when sailing.

This factor (and lower cost) is why most sail training happens on monohulls. If you have too much sail out for the wind, your overpowered monohull will heel over and become a pain to sail, before anything breaks. 

On a catamaran you get less feedback at the wheel, which if you are not being very attentive can get you into trouble in big winds.

Then there is the visceral joy of "feeling sailing". A monohull will heel (meaning it is designed to tip over anywhere from 10º to say 50º) whereas a catamaran won't. While their increased heeling can be a performance disadvantage, it can also be an advantage as it is a lot of fun. 

7. Tacking is easier on a monohull.

While they can accelerate faster, catamarans also decelerate much quicker, and as such can have a harder time maintaining momentum through a tack. It depends what sort of sailing you are after. If it is about enjoying being outside, and not so much about the sailing itself, then a catamaran is fine. But if you are out there sailing for sailing's sake, then you will probably find more enjoyment on a monohull.

8. Monohulls tend to swing less at anchor.

While they may rock more in a side to side motion than their equivalent catamaran, monohulls tend to swing less at anchor.

Libertas on a mooring ball. Monohulls exhibit less "sailing on their anchor" when moored.

Conclusions

The above shows that there are no clear winners to the Catamaran vs. Monohull debate. At Sailing Virgins we teach and cruise on both monohulls and catamarans. If you have to make a decision yourself it really comes down to:

• How much hard-core sailing you (and your crew) intend to do;
• What your budget is;
• How much space you need;
• How shallow the bays are that you would like to visit.

We hope that helps your decision making. If you would ever like to know more, if you become a Sailing Virgins Patron, you can take part in any of our once-per-month live Q&A sessions, where absolutely any sailing-related question if yours can be asked and answered. Patron support starts from as little as $3 per episode. Click here for more information.

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Catamaran vs Monohull: Let’s Solve This (we Lived on Both).

This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. When you make a purchase using one of our links, I may earn a small commission at no additional cost to you. Please read my full  Privacy Policy  for more information.

The ultimate question – catamaran vs monohull, which is better? This post will help solve the dilemma. It is packed-full of information, by real boaters!

We prefer catamarans, now that we have tried both. But we strongly recommend that you start with a monohull, if possible.

We cruised on a monohull for three years (two of which full-time), and then switched to a catamaran for two more years of sailing and living aboard .

We have years of boating experience and I spent lots of time making this post as helpful as possible, and fully human-generated .

All of our boat-life posts – Boat Life @ No Texting & Tacking

Top Catamaran Pros and Cons.

Here is what we loved the most and the least about our catamaran:

Catamaran Pros

• Stable while cruising
• Calm at rest
• Easy to dock
• Shallow draft

Catamaran Cons

• Jerk and slam cruising
• Cost to buy and maintain
• No sail feel

I am covering each in greater detail in this post, so keep reading.

Top Monohull Pros and Cons

Here is what we loved the most and the least about our monohull:

Monohull Pros

• Great sail feel
• See the crew at all times
• Best for solo sail

Monohull Cons

• Roll and heel
• Small space

Now that you have seen the short version of it, read below. Each of these pros and cons are discussed in much greater detail.

And I have a few more features too!

Monohull vs catamaran – are they even comparable?

Are we really comparing apples to apples ? Apart from the number of hulls, the two sailboats are, actually quite different.

A monohull is a sailboat with a single hull , while a catamaran has two – imagine Pirates of the Caribbean versus Moana (but nicer).

There is yet another kind – a trimaran – a sailboat with three hulls (which is where we might be headed next, if we venture out into the big blue again).

Since few people are sailing trimarans, I will focus on the two most common sailboats – cats and monos.

19 Things to Consider – Know Before You Compare.

Below are a few main features which will define the performance of a boat, as well as the overall cruising experience .

I am offering simple explanations and descriptions, so that anyone can understand and decide what matters most.

It is the sailor that makes mistakes, not the boat.

Monohulls can handle bad weather, if steered well – where each larger wave must be surfed. It really is up to the captain to make or break the journey in poor weather.

Catamarans are like small moving islands. They, too, can handle bad weather safely, but are a bit harder to yield to the wishes of the captain, as they are slower to respond.

We have made mistakes on both cats and monos and the weather was not even that bad – poor choices will affect safety far more than the number of hulls.

Both catamarans and monohulls can sail perfectly fine out in the ocean, around the world, more than once.

Boater’s Tip : The best favor you can do yourself, is to take sailing classes , practice and learn everything you can about your boat.

2. Stability

Monohulls have a heavy bottom, which constantly pulls the boat down. Catamarans are very hard to flip over.

If a monohull flips, it will right itself fairly quickly (unless it starts taking in water). If it takes in water, a monohull will sink quickly.

It is likely the mast will break, before a cat capsizes . Once they flip over, however, they stay that way and turn into a raft.

Let’s be real, though. If the boat is truly in such daring conditions that it flips over, the injuries and damage are the real danger, for those still conscious.

Boater’s Tip: Avoid bad weather in the first place – use Predict Wind App , have a guide during longer passages. Avoiding a major storm is perfectly doable.

Monohulls are far more affordable than catamarans.

There are also a lot more of them to choose from , making it a buyer’s market in almost all cases.

It is not unheard of to offer half of what a monohull is listed for and be able to get a great deal.

Catamarans have always been more expensive , but especially in the last few years. With more people able to be location-independent , catamarans have become the first choice for a floating home, for many.

Buying a catamaran? Read this: Buying a Catamaran in 10 Steps – Complete Guide.

When we first moved on a sailboat , we still had our house and its large mortgage , and we were not sure if that boating thing was going to work at all . So, we only looked at monohulls and were able to find our 1985 Grand Soleil 39 at a very good price.

Once we decided to switch to a catamaran, low-balling went out the window . It was a hot cats’ market out there. We looked hard , made tons of calls, but most of all waited as long as it took.

Patience can pay off and is a good financial habit to adopt.

For more good financial habits: 12 Practical Ideas to Spend Less

The prices for cats have been staying high due to many people being willing to finance a boat , kind of like having a mortgage on a home.

It sort of makes sense, if the boat is to become your new home.

4. Resale value

Flipping a fixer-upper boat is a risky business. Few venture into it.

Monohulls and catamarans are like cars , they lose their value over time.

Sure, one can buy a fixer-upper of a boat, update all the systems and end up with a beautiful boat, but the cost of boat upgrades and repairs is very high. Unless you do most of the work yourself, return on investment is zero.

Even catamarans do not hold their value. You have to rely on a crash in the luxury items market, or a hurricane leaving lots of boats with reparable damage, to snag a good deal on a cat.

We lost money selling our monohull, but made money on our catamaran – we did almost all the work ourselves and it was a good market, so we took advantage . It did cut our cruising short, unfortunately.

Boater’s Tip: Sell your boat “by owner” and do the listing right – here is a whole post about it: How to Sell a Boat by Owner, the Honest Way

5. Maintenance

Plan for around 10% of the boat value for annual maintenance cost.

Monohulls only have one of each to run and fix – one engine, one hull to paint, one AC unit.

Catamarans cost more to maintain and expenses add up quickly.

In addition, it costs more to haul out a catamaran , as few boatyards are equipped with a sling to accommodate the width of a catamaran.

There are even fewer options in remote island countries .

Boater’s Tip: If sailing internationally, do just the urgent repairs at the US/other developed country. Cheaper destinations offer a lot cheaper services. Buy spares, they are hard to find in remote places.

Both or our boats have been designed with speed in mind.

We have sailed at 11 knots downwind on our 42 ft Privilege catamaran. We usually reached 7-8 knots into wind, on our 39 ft Grand Soleil monohull.

That was in around 15-20 knots of wind.

Catamarans sail faster, with all other things being equal . A few factors contribute to higher speed in catamarans:

• Hull design and shape – the less of the hull in the water, the less drag.
• Lighter weight overall – aided by proper load distribution and boat material.
• The hull material, in performance cats – carbon fiber, or an inner foam layer.
• Larger sail surface area, calculated as the beam : length ratio.

A 50 foot sailing catamaran (and smaller), with proper hull and body design, can exceed 20 knots of sailing speed in 25 knots of wind.

More subjective factors that have major influence on the speed of both monohulls and catamarans:

• Boat load and distribution – lots of cargo means slower speed.
• Proper sails management – how much wind the sails can “grab” (I am a master of spilling wind on monohulls, because I hate going fast , call me for tips).
• Crew experience – wind speed and direction changes almost constantly. Sails have to be adjusted at the same rate, if you want to go fast.
• Cabin and cockpit design – the larger, higher and boxier that cabin / cockpit, the more it will slow down the boat.

Boater’s Tip: To increase boat speed during sail, buy folding propellers . Put the boat on reverse, so they don’t spin, to decrease drag. Just make sure you take the boat off reverse when starting the engine!

7. Wind feel

If you are starting new, with no sailing experience , start sailing a monohull.

A monohull allows you to be the one sailing the vessel. You can really feel the wind and gain a perfect understanding of how the wind and the sails work together.

Our monohull did not have an autopilot and even though overnight passages were hard, we became very familiar and comfortable with our boat. This is coming from a mama who never grew fond of sailing .

If going out for a day sail, for the sake of sailing, I would pick a monohull.

Catamarans are fast, but they kind of sail as they wish . It is almost impossible to feel the wind and its pull on the mast.

That is why catamarans are sailed by numbers – by reefing the sails following the manufacturer’s recommendations. With experience it becomes easier.

Boater’s Tip : Try sailing a monohull and a catamaran, to see the difference. Both will likely make you sick , so don’t let that be the determining factor.

8. Performance

I am discussing performance in terms of how the boat sails at different angles to the wind.

Monohulls sail great into the wind , making it easy to start a passage when the wind is blowing almost in your face. They achieve this by heeling over (leaning to one side).

Monohulls do not sail well downwind . You can have a spinnaker up, or spread the sails to grab the most wind possible, but it is hard for light apparent wind (true wind speed reduced by your boat’s speed, when sailing downwind) to move a heavy monohull.

Catamarans do not sail into the wind . Even performance cats need a winder angle into the wind to be able to move.

Downwind, catamarans will give you the most comfortable ride ever , while flying a spinnaker. That glass of wine they are talking about not spilling aboard – it is during downwind sailing.

Both cats and monos suck when sailed into beam wind (wind coming from the side). I know, I am not terribly technical here, but it feels like choosing between two evils – rolling and puking, or being jerked and puking.

Feeling sick? This might help: Seasickness Sucks – 21 Tried and Tested Tips to Stop it.

Boater’s Tip : Wait for a better weather window. Nothing can ruin a great adventure quite like sailing, scheduled by your calendar.

9. Maneuverability

When discussing maneuverability, I am featuring here behavior under sail .

Monohulls are very easy and responsive to tacking (changing the direction of the boat, while sailing upwind). All those movies where teams work in excellent synchronized movements to flip sails to the other side of the boat, show you examples of tacking.

Catamarans are hard to tack . They are very slow to respond , so you need lots of momentum and speed, as you prepare to tack. Once you wait a bit too long, the opportunity is gone. It is not a big deal, but in stronger winds, you can easily rip a sail when it starts flopping uncontrollably in the wind.

We are not fans of jibing on either boat (changing the direction of the boat during downwind sailing). True downwind sailing is never a good idea, because accidental jibing can hurt both the boat (done it!) and the crew , in stronger winds.

Boater’s Tip: No texting and tacking – teamwork pays off best when working together to sail against the direction of the wind 😉

10. Docking

The best part about docking is pushing off the docks. Marinas are expensive and the adventure is never, ever the same , if the boat is just tied in place.

Still, when considering docking keep in mind:

Catamarans are super easy to dock and can rotate a full circle on a very small radius. This is because catamarans have two engines and it is a breeze to control the boat, while using the engines to maneuver into tight spaces.

Monohulls are such a pain to dock ; it was our captain’s biggest nightmare. We were all threading very carefully when it was time to dock our monohull . That momentum the boat gives you while tacking, works quite against you when docking.

When we purchased our monohull back in 2017, we found the tiniest, cheapest marina on the Chesapeake Bay, and sailed on the weekends, practicing docking .

Only the marina owners laughed at us (even though they never admitted it).

Boater’s Tip : We like casting the spring line first, when docking. Some marinas have ridiculously strong currents – call ahead and make sure someone is there to help.

If you want to jump off and swim to the beach, you need a catamaran.

The draft of the boat is the distance between the waterline and the end of the keel. This defines how deep the boat can go without hitting bottom.

Catamarans are lighter and have a shallower draft , compared to monohulls. From around 3ft for a cat under 40ft, to around 6ft for larger catamarans. Our Privilege 42 drew 3.5ft.

Catamarans can go in shallower water. They can even be “beached” , meaning, you can actually take the boat all the way to the beach, then use the high tide to bring her back into the deeper water. Just ensure the access is free from any rocks and coral.

For the times you “beach” the boat accidentally, make sure you have towing help .

The photo above is from us sailing the Great Bahama Bank – an amazing shallow plateau that only a catamaran can handle.

Monohulls have a longer keel, which helps stabilize the boat . The keel must go fairly deep, in order to “hold” a monohull upright , and to counter the wind force on the sails.

The most common keel types you might see are:

• full-keel – a keel looks like a natural extension of the keel. It provides great stability, but makes the boat heavier and slower.
• fin keel – a keel that looks like a fin, attached to the bottom (the most common kind), for stability without sacrificing speed.
• lifting keel – An adjustable keel to change the draft of the boat, if needing to navigate shallow water. They are convenient, but not as sturdy.

Our 39-foot monohull drew 6 feet – quite a lot for such a small boat. It did limit our anchoring options.

We have seen both catamarans and monohulls stuck, by running aground . It is possible to free up the boat, if you are careful with the engines and don’t end up digging yourself deeper.

We had a Boat US membership the entire time we were coastal sailing the US. They even rescued our dinghy once.

Boater’s Tip : We always set our depth instruments to show smaller than actual depth, giving us a cushion with the uneven sea floor.

12. Cruise comfort

Comfort at anchor matters most, but a miserable passage can ruin the entire adventure very quickly.

So, let’s talk about passages – seasickness, heeling, slamming, rolling, keeping watch…

Seasickness happens both on catamarans and monohulls . We found it worse on catamarans, contrary to popular belief. Anything but downwind sailing makes the catamaran turn and twist in ways that only make sense to a catamaran.

The jerking of the catamaran almost feels like riding a tractor on a very bumpy road, but without the chance to stop and rest. On top of that, waves slamming under the boat (even with higher clearance), make the entire boat shake.

Seasickness on a monohull is an absolute given in beam winds . The entire boat rolls from side to side, with every single wave and such passages are downright miserable.

Heeling is a must on a monohull, if you wish to go anywhere. While this is great for speed, it makes life at an angle uncomfortable .

Personally, healing always freaked me out . I feared a kid might fall out of the boat and chased everyone below deck (where seasickness eagerly awaited).

Sleeping on a catamaran during passages is hard, because the slamming of the waves below is too loud and disturbing. I never got used to it.

Sleeping on a monohull during passages is actually a bit better, once you fall asleep. The movement of the monohull is predictable, which can, actually, rock you to sleep .

Boater’s Tip: Buy a Reliefband ! All of us got seasick, every single passage. We tried everything . Nothing worked like Reliefbands, and they come with zero side effects.

13. Comfort at anchor

The art of anchoring must be learnt along with the art of sailing. Otherwise damage to other boats is quite possible. Anchoring is simple math and common sense .

Catamarans behave much better at anchor, compared to monohulls. They are more stable and not affected as much by a wrap-around swell (when the waves are coming from the side, while the boat is facing into the wind).

Considering cruising is 99% standing still , it is not hard to understand why this single advantage can negate everything else.

Cats tend to “sail” on their anchor , meaning the boat may move about, being pushed by the wind. Just something to keep in mind in a tight anchorage.

Monohulls will roll a lot more at anchor , if the anchorage is not super calm. We have been seasick at anchor a few times, which the kids loved , because those “wind days” meant “no school aboard”.

Monohulls can counter wrap around swell by bridling – dropping a second anchor off the bow, in order to keep the boat facing into the waves, rather than into the wind.

No matter what boat you end up anchoring, keep in mind that with the changing wind, the boat position will also change.

Oh, and watch the boat behind you, please ( yes, I’m talking to you, St. Thomas guys, on that chartered boat ).

Boater’s Tip : a good rule of thumb, for normal sea conditions, is 5:1 – five feet of chain for every foot of depth.

14. Indoor space

The indoor space is a huge factor for many, when shopping for a sailboat .

It mattered a lot to us, as well. The most important things to keep in mind are:

• Ceiling height

I have a popular post all about space on a boat: Why We Never Missed Space, While Living on a Sailboat.

Catamarans have more indoor, living space , compared to monohulls (for same length boats). This should come as no surprise. The salon and hulls together make the cat feel like a cute apartment on the water.

Catamarans offer a much better view and lots of light . Monohulls offer no view, but they are not dark, because the hatches act like skylights. The photos, from our boats above, prove just how bright a monohull is.

If you want more of a performance cat, then the view will be sacrificed a bit, because the cabin must be curved and relatively low, to avoid extra windage.

Only certain model catamarans and monohulls will have ceilings suitable for tall people. Joe is 6’4″ and the only catamaran under 43 feet, which would accommodate him, was the Privilege.

Catamarans offer a perfect separation of living space and private cabins. Monohulls with a center cockpit do have a nice aft cabin, but everything else is tight, or a bunk-style closet. Again, focusing on boats under 45 feet.

With three teens aboard , privacy was high on our list. We loved the separate heads (bathrooms) for each hull, although having four of them aboard is excessive (we turned one into the laundry room , and another into a shower room).

Boater’s Tip : Do consider catamarans with the galley below – I loved it! You get a ton more counter-space, and the salon above is more spacious.

15. Outdoor space

Considering most boats sail in warm climates, the outdoor space is a crucial factor, when shopping for a boat.

Catamarans offer much, much better outdoor space, compared to monohulls . The cockpit was my favorite space, on our Privilege .

Unlike the patio of a house, the outdoor space of an anchored boat provides constant breeze and zero bugs (occasional bee swarms might happen in some places).

Another point for the catamaran is the bow trampolines , which are a favorite hang-out spot. It is easy to send the kids and their friends to the front, while the adults hang out in the cockpit.

With older kids , however, we just left them all boat-alone, while the adults gathered on a different boat.

Walking on deck during passages is easier on a catamaran , because the boat does not heel.

16. Sustainability

Sustainability is all in the hands of the crew , much like safety. It is never the boat’s fault, if the crew wants to motor, instead of sail.

Both catamarans and monohulls have plenty of surface area to attach solar panels and wind generators.

You will like this post: This Sustainable Lifestyle is the Fairest of Them All. 10 Reasons Why Living on a Sailboat Matters.

A few boating families we met swore by their solar ovens too. I bought a super cheap one and never got it to cook anything, but granola.

As far as the cats having two engines – many motor using only one of them, and the one engine aboard a heavier monohull uses plenty of diesel too.

Boater’s Tip : Forget the generator. They are super noisy and use lots of diesel. When you are at anchor, there is a constant breeze. Buy wind scoopers instead.

17. Fun and entertainment

Our kids were happy, as long as there were other boatkids . So, that should be on the top of the priorities’ list.

I have an excellent post on socializing the kids while on the water:

Sailing and Socializing Kids – 8 Ways to Find Friends on the High Seas.

Having said that, our catamaran was much more comfortable to invite company over, compared to our monohull.

Catamarans have an excellent division of space – both indoor and outdoor. Not to mention that on a hot day, a swim platform can go under the trampolines for shade!

Monohulls are best for swinging and playing catapult games , but they are not great for entertainment .

We have had family visit aboard our Privilege , and it did not feel crowded at all.

Boater’ tip : Be the party boat, at the anchorage, if you have kids, this will make them enjoy boat-life more.

18. The looks

Beauty is in the eye of the beholder. Captains are not the only beholders.

Both monohulls and catamarans can look amazing, or ridiculous. We liked both of our boats, the captain actually loved them both , which put me in a perpetual love triangle.

To be perfectly honest, Graceful was a better suited name for our Grand Soleil Monohull. We were not able to come up with a better name, and everyone knew us as the SV Graceful crew, so we kept the name for our catamaran .

There is also some romance surrounding the looks of a monohull , from paintings and movies, so I’ll give the beauty point to the monohull.

Boater’s Tip: Pick the one, which will make your wife less jealous.

19. The crew

Unless you are solo-sailing, you must consider the wishes of the crew .

When we first looked at boats, catamarans were out of the question, because they were expensive, and our captain thought they were ugly .

Three years later, two of which full-time living aboard our monohull, the boatkids spoke! They wanted to continue sailing, but on a catamaran . And we listened.

Check out the full story of our crazy adventures

In the end, we are the parents and there are decisions as well as consequences, which are not OK to dump on the kids.

But the crew is a true team on the water . So, everyone’s opinion matters (which is also why we returned to land life).

What is the right boat for you ?

Now that we have talked about the differences between the two boats, let’s see which one might be right for you, at this stage of your adventure .

Sailing with family

We believe that a catamaran is the best choice for a family , especially when traveling with older kids .

Teens will love the clever separation of space with cabins, providing plenty of privacy.

Our favorite Privilege, actually has a fully enclosed cockpit, for added safety.

A monohull might be best for couples with toddlers , requiring help and constant supervision (got for one with a centyer cockpit).

When the need arises, for both people to be handling the sails, it usually requires one’s full attention and a kid on a catamaran can run out of sight quickly.

The best thing you can do, if no other factors are at play, if to hop on both sailboats, enjoy a day-sail trip, then discuss it with the crew.

Sailing as a couple

A monohull would be the better choice for a physically fit couple , sailing without kids (or with young ones).

Owning a monohull is cheaper , and a couple might have the budget to stop at marinas more often and explore places in-land.

A retired couple might find a small catamaran more comfortable . The acrobatics and strain to sail at an angle, climbing in and out of the salon, as well as climbing on deck do require agility and a healthy body.

Sailing solo

It is hard to beat a monohull, if sailing solo .

If the boat is rigged for solo-sailing, the smaller cockpit of a monohull provides great space to handle the lines. Especially, if the instruments fail.

One person can solo sail a catamaran that is no bigger than 40 feet , with a small cockpit and rigged for solo sailing. Hop in the cockpit of a desired cat and try grabbing the lines on either side, alone, from the cockpit. Can you do it?

Sailing lifestyle

If planning to do lots of cruising, then either boat would be fine , depending on your preference, considering all the things mentioned above.

If planning to live mostly at marinas and travel to explore land, maybe a monohull is better, offering a lot more options for marinas at a lower cost.

If you need to haul out the boat frequently, during hurricane season, a monohull would be easier and cheaper.

Catamaran at a mooring field, in an expensive location , will grant you those million-dollar views , from your living room, for a small fraction of the cost that people pay ashore.

We loved Coconut Grove, Downtown Miami, USVI, from our quiet, private and affordable boat.

Speaking of waterfront living, I have a great post about living on a boat:

Can you Live on a Boat? Yes, and Now is the Right Time 

Just chartering for vacation?

A catamaran will be the better chartering option , if you are just sailing out for a week, or so. Here is why:

• Great views from the salon.
• Better separation of space, if diving the cost with another party.
• Larger space for entertaining.
• Easier to get in and out of the water.
• Catamarans are a lot more comfortable when anchored, than monohulls.
• Motoring between anchorages can get you there faster.
• You can anchor closer to the beach, because of the shallow draft on a cat.

What other boaters say.

Still uncertain? Check out the praises sung to both monohulls and catamarans below – all by our dear friends, who have sailed extensively and know what they are talking about.

Praises to the mono

SV Silent Thunder , “Mono- smoother ride as she cuts through the sea.”

SV Lady of Mettle dad, “I prefer monos. I never seen the need to go over the same wave twice. Mono’s are a more predictable swaying motion. Cats feel unpredictable and “twitchy” to me. Monohulls handle weight better than cats. If blown over, monos stand back up. Cats don’t.”

SV Lady of Mettle mama , “When we sailed a Cat with family in Key West, I didn’t like that the helm was outside and upstairs. In foul weather that would not be great along with always having to be outside to helm. In comparison we have an inside helm to get out of sun or weather. I also did not enjoy the bow, outside on the deck was not as enjoyable to watch he dolphins play, and the smallest wave splashes over, keeping you in the back while sailing.

Overall sailing, I think a Monohull, but staying still, probably a cat just because of the open galley and living room areas.

My boat has plenty space however, a cat would not hold our things. Also, cats all look the same. Also 2 hulls to clean and scrape…booo The Cat has to go overboard.”

SV Traveler, “I would like the additional living space on a cat but I really like that my husband can captain our monohull by himself and if we need dock space or a haul out it seems easier to find with a monohull.”

Praises to the cat

SV Half Dozen , “CAT allows for view and comfort at anchor.”

SV Varekai , “…I can honestly say that (monohull) it’s not as comfortable. Cockpit, salon, berths…we all feel less comfortable on the mono. I also miss being up where I can see out. The sugar scoops were nice for when docked and sailing. I’m not a fan of boarding on the side as much.”

SV Mojo , “Straight and smooth sailing no healing. I would hate having to be angled while moving. Loved the space inside and out. There’s a compromise in everything but that worked for us for a bit anyway, because then I needed more space. If you give a pig a pancake…right?!”

SV Colibri , “We love the room, light and layout of our cat. We rarely sway at anchor. It’s nimble and has enough space and privacy for a family with two teens (and a cat!). It can be single handed. The mast is 63″ so we can take the ICW. All in all, a dream boat (FP Lipari).”

SV Snowless , “Love the cat. Would definitely take the cat over a mono for most of the time. Yes the mono is great for going to to the wind aka, getting from us to Caribbean, but that is only a small portion of the travel. After that it’s mostly beam or downwind sailing. The trade off for being at anchor which is where you spend most is your time is unmatchable in my opinion.

However, when going upwind and I look ahead and see a mono healed over cutting through the waves with this mast holding steady, vs me and my mechanical bull that I am riding, I am envious.”

SV Aquafox , “I liked all the different living spaces we had on ours. I really liked the stability of it vs the movement you can get on a mono. Monos are awesome on speed and price though.”

Tours of our boats

Below are links to our boat tours, as well as episodes on Youtube, showing our boats, enjoy:

Our Catamaran Tour – 1995 Privilege 42

Our Monohull Boat Tour – 1985 Grand Soleil 39

Our 1985 Privilege 42 For Sale Video

Our first few YouTube episodes feature our monohull

In the end, I propose that Catamaran vs Monohull Battle be renamed to Sailor vs Sailor Battl e.

It really matters most what kind of cruising the sailor wants to do , and what matters most to the crew. And, just like in real battles, sides can be changed.

So, let’s focus on the crew and leave the poor cat and mono alone .

Links to what we recommend in this post

• Reliefband – excellent against seasickness. Zero side effects, we loved them.
• Sailing classes via the American Sailing Association
• Predict Wind – to always select the best possible weather window.
• Folding propellers – to help increase boat speed and protect the propeller.
• Boat US Membership – for peace of mind, while sailing the US coast.
• Wind scooper – for extra breeze inside the cabins – a must aboard!

Helpful posts about boating life

All of our Boat Life Posts

Buying a Catamaran in 10 Steps – Complete Guide.

Pros and Cons of Living on a Boat. By Experienced Boaters.

The cost of living on a boat for a family

How to Sell a Boat by Owner, the Honest Way

Can you Live on a Boat? Yes, and Now is the Right Time

Mina is the creator and owner of No Texting and Tacking. She is an award-winning author, a philologist, a registered nurse and a native Bulgarian. She turned into a travel blogger in 2018, when her family of five decided to sail and travel the world.

Catamaran and Monohull Compared: Which is Better, Faster, Safier, and More Stable in Rought Sea?

Catamarans and monohulls are two vessels that have distinct features from each other. Catamarans have two hulls connected by a bridge structure whereas, as the name suggests monohulls have a single hull.

Both types of vessels have different features in terms of both aesthetics and function, let’s get into the details to find out more.

Do Catamarans Have More Space?

Since catamarans have two hulls, they are normally wider than monohulls. This gives the designers and owners the flexibility to maximize the space requirements in terms of space and function.

Vessels can be designed for either commercial or recreational uses. The additional space can serve as an advantage in both fields. In terms of recreational vessels such as yachts, the accommodation can be split up between the two hulls and can be well designed in such a manner that separate spaces can be allotted for the owner, guest, and crews with separate passages such that the path between the primary guests and the crew don’t collide.

In terms of interiors, the huge space addition can give the owners much more flexibility in choosing furniture without size restrictions and more space for additional appliances such as washers, dryers and so on which can make life on board much easier.

The deck can also house more people without the feeling of being enclosed in a closed space and for this reason, catamarans are normally used as party boats with wider deck space and more space to move around.

In terms of storage, catamarans have better storage options than monohulls as both the hulls can be utilized for different functions which not only increases the overall capacity of storage in terms of fuel , fresh water , cargo, and so on but also gives the designer an option to segregate the storage areas for different uses.

Catamarans are also now a growing trend in the fishing industry as the wide decks provide more area for the fisherman to move around without any obstructions making fishing much easier also, catamarans tend to roll less which stabilizes the vessel better than monohulls, giving more stable conditions for fishing without the risk of going aboard.

Due to the wider proportions, the spaces can also be designed in such a way so as to house tenders, jet-skis, and so on, on either of the deck spaces normally aft of the vessel mostly functioned by a small crane which can launch the vessel into the water.

Recreational activities such as swimming and diving can be performed with ease on both types of boats. On catamarans, the wide aft spaces also provide effective spacing for housing equipment and accessories such as dive tanks, telescopic staircases and so on which can serve as must-haves for similar activities.

The same can also be performed on monohulls with limitations to the width of the vessel. The wide superstructures on catamarans can also be used to house solar panels for green and renewable energy solutions which surely is going to be a great advantage in the near future.

Monohulls have the advantage of having wider compartments below the deck when compared to catamarans, as the overall width of the hull is larger than a single hull on a catamaran. This gives room for larger living spaces below the deck, which can have the option to walk around on either side of the bed.

Why Are Catamarans More Expensive Than Monohulls?

Catamarans are normally priced more than monohulls. This is because they have more overall area which requires more raw materials in the production stage than monohulls.

In terms of machinery, they have two or more engines on each hull depending on the width of each semi-hull and its supporting machinery which can increase the overall cost of the final product.

In terms of engines, maintenance is less frequent when compared to monohulls as they don’t need to operate on their maximum limits to push the vessel.

Maintenance costs can also be higher for catamarans as they have more machinery and more deck space, but on the contrary, the ease of maintenance will be much better in catamarans than monohulls as they have better accessible spaces.

The preventive maintenance for corrosion and marine growth on catamaran hulls is also higher as they normally have more area to treat than monohulls.

Are Catamarans Faster Than Monohulls?

Catamarans tend to outperform monohulls due to their slender hulls which help in reducing the drag forces. On performance power catamarans the space between the two hulls is called a “Tunnel” which is designed in a similar manner to an aerofoil so that it acts like a wing, which increases the aerodynamic lift forces thereby increasing overall efficiency and top-end speeds of the vessel.

The balance between the hydrodynamic and aerodynamic forces is the key aspect that determines the performance and stability of high-speed catamarans.

Fuel economy is normally better on catamarans due to the higher lift forces and lower water friction compared to monohulls which thereby reduces the overall load on the engines, reducing fuel consumption.

Is A Catamaran More Stable Than A Monohull?

Catamarans are generally more stable than monohulls in terms of roll stability. Let’s take an example of balancing a stick in the middle compared to balancing it by supporting the two ends, obviously, the second case has an advantage. In a similar manner, we can observe that catamarans have better roll stability when compared to monohulls.

This gives them an upper hand in terms of comfort and executing different operations onboard the vessel with ease, also reducing the risk of people falling on board the vessel. Catamarans are mostly used as ferries or passenger vessels as people tend to get less seasick on these kinds of vessels.

The deeper the deadrise the better the sea-keeping characteristics, most monohulls are designed with a deep v deadrise and tend to outperform catamarans which normally have displacement or semi-displacement hulls, in rough waters.

The typical catamarans are better in shallower water than rough water due to this reason and that’s why we see most of the coastal or inland cruisers as catamarans and most ocean-going vessels as deep v monohulls.

The draft can be defined as the distance of the waterline to the keel of the vessel. Catamarans normally tend to have a lower draft compared to monohulls which gives them an advantage of plying over shallower waters without the risk of grounding.

The lower the draft of the less the vessel, the less it is in contact with water, and therefore the overall water friction resistance is reduced leading to the need for lower power to push the vessel and better fuel efficiency.

What Is Easier To Sail A Catamaran Or Monohull?

For the thrill of sailing most sailors prefer monohulls over catamarans. They are sensitive to different forces like wind and waves acting on the vessel and there is an immediate response on the vessel. They ride through rough and choppy waves; this is the experience the sailors look forward to, giving them an adrenaline rush.

Sailing catamarans do not respond similarly to monohulls as the overall motions are reduced and also monohulls maneuver much easier than catamarans at high speeds.

Docking in marinas usually is easier with monohulls than catamarans as they require lesser space to mauver into the docking space.

Which Is Safer Catamaran Or The Monohull?

Catamarans normally tend to be on the safer side than monohulls in terms of backups and safety. If any machinery fails there is always a backup, say for example if rudder machinery fails on the port hull we can always get back ashore with the help of the starboard rudder, similarly if an engine fails there is always the second engine which can be used as a backup.

In terms of reserve buoyancy, if the port side hull gets damaged, the vessel will still remain afloat. These advantages can help people on board keeping them safe and saving a life.

The only downside to the above aspects is the maintenance costs which come up with the same as we discussed earlier.

Which One Should I Get?

The type of vessel should depend totally on your end goals in terms of functionality, performance, region of operation, and so on.

But always keep in mind never to get blinded by the length when you compare a monohull to a catamaran. A monohull in comparison might be longer but the overall space which is measured in cubic space will be higher in the shorter-length catamaran.

Going through the pros and cons the final decision should be made depending on your personal requirements.

About the author

I worked as an officer in the deck department on various types of vessels, including oil and chemical tankers, LPG carriers, and even reefer and TSHD in the early years. Currently employed as Marine Surveyor carrying cargo, draft, bunker, and warranty survey.

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Catamaran Vs. Monohull – How to Choose?

Search blog posts, blog categories, pros & cons of hiring a catamaran or monohull for your whitsunday yacht charter.

Some dyed-in-the-wool purists have been known to demonstrate a little “sailing snobbery” from time to time. Putting sailing snobbery aside … if planning a sailing vacation and you aren’t sure whether you want a  catamaran  or a  monohull , you need to weigh the pros and cons of each to see what makes more sense for your purposes. Personally, I quite like both … for different reasons!

Catamaran Pros

• One of the major advantages of a catamaran versus a monohull is their inherent stability. A monohull simply can’t be compared to a cat in this regard.
• Stability is a big plus for families with young children or seniors who are not particularly steady on their feet. Because the boat is not as susceptible to the effects of wave action and does not heal the way a monohull does, it is much easier to walk around on deck and within the interior of the yacht while underway.
• Anyone who may be prone to seasickness will feel the effects of motion much less aboard a cat than they might on a mono. The added stability on a cat makes the cook’s job a lot less challenging both while underway and at anchor. Catamarans don’t rock and roll the way monohulls do.

More Bonus Points for Cats…

• Catamarans generally provide far more living space in the main salon, galley and cockpit, than the space found aboard similarly priced monohulls. Their cabins are often more spacious too and even the smallest cat in the fleet has stand up headroom in each cabin.
• Because of the layout, there is usually more privacy on a cat than on a mono and if you have children aboard, there is greater separation from the main living space and the cabins, making it easier for the kids to fall asleep at a reasonable hour.
• The shallow draft of a cat allows you to anchor in shallower water which means you can be closer to the beach than almost all monohulls.
• Many of the newer catamarans have raised or flybridge helms. No monohull can beat the visibility from the helm provided on most modern catamarans.
• The galley, main salon and cockpit are all on one level, above the water line … making life aboard as well as your view much more enjoyable.
• Because the majority of living space is above the waterline, you get much better flow through ventilation on a cat making the need for air conditioning somewhat less important during the daylight hours.
• In almost all cases, you do not have to race around stowing things or using bungee cords to keep things in place, the moment you decide to set sail. Most things stay put even in moderately rough seas.
• Because catamarans don’t have a big heavy keel loaded with lead, even if you hole the boat, it will float. Production cats have so much buoyancy built in that they are next to impossible to sink.
• Cats are usually pretty easy to dock because you have two motors and two rudders. No need for a bow thruster.
• Most catamarans can turn 360 degrees within their own length. No monohull I know of can do that.
• Catamarans are usually faster than monohulls, particularly on downwind runs, reaches and broad reaches. It’s less tiring to sail a catamaran than it is to sail a monohull. Sailing flat has definite advantages.
• If you are into SCUBA diving, carrying tanks and all the assorted equipment is much easier on a cat. It’s also a lot easier in many cases to board a cat on the sugar scoops than it is on many monohulls. Although many modern monohulls do have huge swim platforms that raise and lower electronically … so in that case, it’s a wash.
• I have yet to see a monohull with a trampoline for sunbathing or lounging in the moonlight, while stargazing … with your sweetheart by your side! How much more romantic does it get than that? 🙂

Catamaran Cons

• Because a wide bridge deck is strapped between two hulls, there can be slapping or pounding while underway in heavier seas. The slapping can become annoying, but is easily resolved by reducing sail. Unfortunately, that means reducing speed as well.
• You won’t get the same amount of feedback from the wheel of a cat as from a monohull. This means you must be vigilant in rough seas and high winds and know when to reduce sail. The last thing you want to have happen is to find yourself surfing down a wave, burying the bows and pitch polling. Having said that, pitch polling a cruising cat would take some doing … Cruising catamarans don’t really heal, so the feeling of “sailing” is quite different from that aboard a monohull. Note: I’m not convinced this is really a con … but I am trying to dig up as many cons as I possibly can.
• Cats take double the space to dock and often cost double to dock too.
• Cats can’t sail as close to the wind as a monohull … but, most sail faster than a monohull on a reach, so if you fall off a few degrees and sail fast, you can usually get to the same place at the same time and sometimes faster, even though you will have to cover more ground.
• Tacking a catamaran is not the same as tacking a monohull. You have to have sufficient speed to carry you through a tack without losing too much forward momentum. Square foot for square foot, a catamaran is much lighter than a monohull and for that reason, they slow down much more quickly. You basically carve through the tack rather than making a sharp directional turn as you would in a monohull. If concerned about tacking, in light winds or heavily trafficked areas, turn on the motor as an assist to get you through the tack or douse the sails altogether. You’re on vacation! Why sweat it?
• Catamarans with similar sleeping capacity and equipment are usually (but not always) more expensive to charter than monohulls.

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Where You Do Your Boating

Monohull boats vs. catamarans.

Monohull Boats Vs. Powered Catamarans

When deciding what type of boat to buy, you will likely want to understand the differences between the most popular boat hulls. This brief article highlights some of the critical differences between Catamaran and Monohull boats.

Ride Comfort

Undoubtedly one of the most important features of any watercraft is how well it’s engineered for a comfortable ride for all passengers. Many boats are primarily designed around comfort for the captain. This usually means anyone at the front or sides of the boat takes most of the jostling. The catamaran-style hull delivers three distinctive characteristics key to ride comfort, smoothness, load distribution, and stability.

The wider footprint of the catamaran vessel helps negate the effects of unpredictable rolling while at sea. The efficient hull design reduces resistance and allows for faster headway, especially in rough conditions.

The narrow design of the monohull vessel relies heavily on the calmness of the water to ensure a smooth ride. The bouncing, slapping, and choppiness encountered by the monohull is much greater due to the greater amount of surface area that remains in contact with the water.

A catamaran beam is carried fully forward, giving the deck a rectangular design, and resulting in more usable deck space than a monohull boat.

Boats have a pinched bow, which comes to a point, creating a triangular shape as opposed to a catamaran’s rectangular shape. This feature makes the monohull less space-efficient.

Load Distribution

The catamaran’s rectangular shape uses space much more efficiently, giving passengers room to stretch out and enjoy the ride, even from the bow of the boat. Passengers can also enjoy the freedom to fish from either side of the deck, as opposed to having to adjust to ensure even weight distribution, as is the case with monohull designs. This is because the catamaran’s resistance to capsizing is much higher.

If you’re reading this, then you’ve almost certainly boarded a monohull style vessel, and you’re familiar with their tendency to rock and dip when passengers are boarding and offboarding. This unfortunate feature of monohull vessels can be understood best with a simple analogy: catamarans are similar to standing on two legs, while monohull vessels are similar to balancing on one leg.

Catamarans’ parallel hulls create reliable form stability, which prevents heeling and capsizing, and greatly reduces the vessel roll at rest and at trolling speeds. One of the most obvious advantages of catamaran stability is in the elimination of seasickness for passengers.

The stability of the monohull can be called into question more readily than a catamaran, as it requires four-times less force to initiate the capsize of a monohull vessel than an equally sized catamaran. Heeling is also more of a problem for the monohull, as its single-beam style makes it seven-times more prone to heeling than a similarly sized catamaran.

Fuel efficiency

A catamaran hull experiences little to drag or resistance to get on plane, resulting in greater fuel economy. Catamarans have a steady rise in speed and fuel burn with little to no spikes in fuel consumption. See the diagram below courtesy of Yamaha Outboards.

Worldcat 296DC with 600HP Yamaha Outboards

By comparison, bow(keel) drag created by a monohull vessel is higher than that of a catamaran, and due to this greater displacement.  The monohull encounters higher resistance taking longer to plane and spikes in speed and fuel consumption at mid-range. A monohull, by comparison, needs much more power to increase its speed.

29′ Monohull with 600HP Yamaha Outboards

If you have any questions about this article feel free to Contact Us Here

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Catamaran Versus V-Hull: Which Rides Better?

• By Kevin Falvey
• Updated: December 2, 2004

The controversy rages in dockside watering holes, tackle shops, and Internet chat rooms: Which rides better-a catamaran or a V-hull? So far, all the talk has been purely subjective: A cat feels like this, a V-hull feels like that. To us, that’s useless. At Boating Magazine, we need hard numbers, things that we can quantify, then we’ll decide. So we took a Regulator 26, which just might be the best-riding V-hull for its size, and a Glacier Bay 260 Canyon Runner, one of the best-riding cats, and wired them with expensive sensing gear. Rather than a match between two specific boats, it would be a comparison of the finest qualities of each type. We expected the cat to be smoother when the going got rough, but what about the other times? Is it the most comfortable all-around boat? It took us a year-that’s right, one full year-to compile and understand the data, but here, finally, is the answer.

Measured Madness Our first problem was how to quantify a boat’s motion underway. The best tool we came up with is an accelerometer, which records changes and degrees of motion. We also had electronic gear to measure the boats’ angles, WAAS-enabled GPS units, rangefinders to measure distances, four laptops, stopwatches, plumb bobs, measuring tapes, and eventually, a collection of soggy notebooks.

To help us make sense of what we compiled, and back up our conclusions, we enlisted two top naval architects. So we’d like to thank Rick Strand, president of Strand Technologies, a consultant to companies such as Tillotson-Pearson, Boston Whaler, and Brunswick; and John H. Deknatel, president of the legendary design firm C. Raymond Hunt Associates.

With their help, the evidence became clear. What we discovered should silence the know-it-alls and may surprise the enlightened. Without question, we’ve killed the controversy. The boat type with the most comfortable ride is…

Not so fast-to understand our answer, you need to know how we approached the question.

Three Easy Pieces First, we wanted to measure how differently cats and V-hulls turn. To do this, we set up a buoy and had each boat make the tightest 180-degree turn it could at 30 mph. The diameter of each boat’s turn was about the same, although the V-hull averaged 8.4 seconds compared to the cat’s 8.9 seconds. The important difference, however, was how each banked in the turn.

Our electronic angle indicator showed the cat leaning outward by 26 degrees. The unit may have been over-reading due to outward force, but none of the techies from the indicator’s company could confirm this and they therefore stand by its number. By any measure, the cat did lean outward at a steep angle, which can be disconcerting to say the least. Loose gear slides more when a boat leans opposite the turn, and the push that occurs at the apex can make you feel as if you’re going to be thrown out. Of course, with time, you can get used to this. Furthermore, the lean can be minimized by trimming up the outboard engine and trimming down the inboard.

In contrast, the V-hull banked inward by 10 degrees. This not only feels natural, it also has a practical advantage. Centrifugal force pins you and your deck gear into the boat, and you need no special trimming techniques-just turn the wheel.

Both boats are designed for fishing, so our second test was to see how each fared while drifting.

To start, we measured each boat’s roll period-how long it takes to roll all the way to one side and back again. Too short a roll period foretells a jerky motion at sea, too long may mean there’s not enough initial stability. The cat’s period was 2.2 seconds. The V-hull’s was 2.4 seconds, almost 10 percent slower-which in this case is good.

Given our experience with a cat’s less-than-gentle motion at drift, we expected its period to be a lot shorter than the V-hull’s. In hopes of explaining this, we headed out into the ocean.

After the two boats took their natural drift angle in four-foot waves, we looked at the mean G forces each experienced. The cat showed 0.92 Gs, and the V-hull showed 1.18 Gs. So the cat is more comfortable, right?

Not quite. On average, it took the cat 1.15 seconds to reach those Gs, whereas it took the V-hull a little longer at 1.17 seconds. That is, the V-hull accelerated 2 percent slower than the cat. And, as we’ll get into later, slower accelerations equal more comfort.

The results from the accelerometer confirm our roll period tests. The cat, with its greater initial stability, resists rolling. When you stand on its rail at the dock, you notice it hardly leans at all. Most folks think this stability makes for a better boat offshore. But that same resistance to listing at the dock causes a cat to follow the contour of the waves while drifting. The steeper the wave face, the more the cat leans over.

The V-hull has less initial stability, so it gives a bit to your weight at the dock-and to oncoming waves. Its ability to roll easier means it’s not forced to follow the contour of the wave. Instead, as a wave approaches, the boat leans toward it, levels out at the crest, and then leans back into the retreating wave on the way down. In this way, it’s trying to remain level, rather than trying to conform to the angle of the water it’s floating in.

Our third test was to see how smooth each boat ran on a “perfect” boating day, one with a small one-to-two-foot chop on an open bay and a 10-mph breeze. We ran the boats side by side, and the differences shown on the accelerometer were negligible.

So far, after three tests, the V-hull had come out on top in two, and both boats were about equal in one.

We Take It Outside “But what about how they ride when it’s rough?” we hear you ask. “That’s what we really want to know.” And we plan to tell you. But our contention is that there’s more to boating-and enjoying it-than this one element. Unfortunately, and unfairly, bar talk often centers around this, so here we go.

We chose a day when the waves were four to five feet with a six-second period-your typical “rough day.” We ran the boats 100 feet apart at 29 mph directly into the waves. It didn’t matter which boat we were in, it was uncomfortable. Anyone but a masochist would slow down or change course, but we’re here for science.

The graphs on page 86 (see “Graphic Violence”) represent the two boats hitting the same wave. Sharp readers will note that the impacts shown for the two do not exactly coincide. The time each boat hits a wave varies, and a given wave isn’t consistent in shape over its length. Since the boats couldn’t be tied abreast of each other, this is the best anyone can do.

We made numerous runs. For statistical accuracy, we examined seven individual waves for each boat and on each run.

Before giving you the numbers, let’s just say that our accelerometer numbers are dead accurate. But on test day the time between entering a wave, bottoming out, and leaving the wave occurred in less than 0.3 seconds-which is not uncommon. According to Deknatel, “That’s too short a time for your body and brain to process the full effect of the event.” The accelerometer, however, is capable of measuring what we can’t feel.

To accurately compare the ride for a real human, not the machine, you need to look at more than just the peaks of the graph (maximum G force). You need to look at the steepness of the graph’s slope (the time it takes to reach that force), too. A boat that develops more Gs doesn’t necessarily mean it has a harsher ride. It depends on how fast that force is applied. For example, if your 250-pound buddy gently leans on you, what you feel is different than if he were to hit you with a running tackle.

The curve for the cat peaks at 3 Gs; the V-hull, on the other hand, peaks at 4, meaning the cat has 25 percent less gravitational force.

We can also see that the cat consistently decelerated slower when it hit the wave than the V-hull did. It had an average deceleration of 0.287 seconds, compared to the V-hull’s 0.081 seconds-which is 3.5 times faster.

The cat not only landed with less force, it decelerated slower as well. The two combined say it has the more comfortable head-sea ride.

Our test day was rough, so much so that our testers were hard-pressed to say from their gut which rode softer. But, again, the machine is more sensitive than any human, and numbers don’t lie: The cat’s numbers were clearly better.

Later tests also showed the cat delivered lower Gs and slower decelerations while running downsea, in quartering seas, and in the trough. So it’s the most comfortable boat right? Well, not so fast.

Rough Guide We weren’t through testing yet-although some tests were hardly high science.

For example, to see how wet riding each hull was, we taped paper towels to the front of the console. Cats often “sneeze,” or throw a fine mist on certain headings. In this case, and even in the test day’s rough conditions, both sets of towels came back dry.

Then there were issues we couldn’t quantify, such as how a V-hull can dig in its bow going downsea to occasionally make steering difficult, or how in quartering seas a cat’s two hulls catch at different times, requiring constant small steering adjustments.

And there were things that we didn’t have time to test, such as the effect of weight. Typically, a V-hull rides better as it gets loaded down with gear and fuel, which is just the opposite of a cat. Also, our offshore tests were on closely spaced waves. On widely spaced rollers, where boats become airborne, the results would have been different.

In the end, for many boaters, especially those who seem to spend more time in gin mills and chat rooms than on the water, ride quality simply means how softly a boat handles head seas. By that standard, as measured by our accelerometers, and in our test conditions, the cat was the clear winner.

But ask yourself, how often do you go out in weather like that? To make the results of our tests worthwhile for you, ask yourself, “Which boat rides better in the conditions I expect to meet?”

For example, if you have to run far and fast to get to an offshore fishing ground, the cat is a better choice. If you fish close to home, and drift or troll more than flat-out running, the V-hull would be better.

Take all our tests into consideration, and the boat you buy will be the right boat-your Mr. Smoothie.

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