trimaran f101

Sailboat specifications

• Last update: 25th April 2020

F101's main features

• 2020: SAIL magazine - Best Performance Boat under 30ft
• 2020: Sailing World - Boat of the Year: Best Foiler

F101's main dimensions

F101's rig and sails, f101's performances, f101's auxiliary engine, f101's accommodations and layout.

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Boat of the Year 2020 F101: Best Foiler

• By Dave Reed
• Updated: December 10, 2019

At A Glance

Price As Sailed: $24,750

Design Purpose: Learn to foil, advance skills

Crew List: One or two

Rob Andrews and his ­business partner Alan Hillman have been teaching foiling for a few years now, and one thing they’ve learned is we get better by sailing, not by swimming. Thus was the genesis of the F101, a craft with which they could teach the fundamentals of foiling—without the crash and burn. But it’s not just a learn-to-foil boat, either. It’s a platform with which new and experienced converts alike can take their ­foiling skill set to a higher level.

The key to mastering the F101, Andrews explains, is grasping righting moment. With the trimaran platform, you get plenty of it, as well as a stable boat that’s more forgiving than any other small foiler. “The trimaran configuration gives you righting moment direct from the foil in the middle hull,” he says, “and gives a measure of safety. It’s hard to capsize the boat.”

The judges learn as much when it comes time to sail the F101. In 15 knots and more, and a steep Chesapeake chop, Powlison is first to give it a go. He settles into the boat, gets his bearings, perches skittishly on the weather hull, sheets on the mainsail (no need to use the boat’s gennaker above 12 knots) and off he goes like a bat out of hell, popping up on the foils without even trying.

“The trick is getting used to the sensation of heeling to windward,” he says. “It takes a bit of trust. Once foiling, it’s quiet and fast, and I felt like I had to be really active on the mainsheet to keep it on the foils.”

That’s true of any foiler, but the beauty of the F101, the judges agree, is when you do lose it, it’s no big deal. The boat drops off its foils, the bows auger in and you get a face full of water; but just reset, bear away and try again.

“The hull shape picks up the buoyancy gently,” Stewart says, “which makes it depress smoothly and prevents it from pitchpoling. When I dumped it a few times I thought I was going in, but not a chance. You quickly realize there’s plenty of floatation there to save you. In flat water, with one day of training you’d get up to speed quickly.”

When teaching people to foil, Hillman starts with “skimming,” a ride height barely above the surface. As the sailor becomes more accustomed to how the boat behaves, there’s a simple line adjustment at the foil head: Dial it up one setting and increase your ride height.

As you’re sailing, the foil wand hanging behind the trailing edge effectively feels where the boat is riding relative to the water and actuates the main flap. In light winds, it gives you more lift, and the boat pops up on the foil. Get too high, and the wand drops down even ­further, forcing negative lift on the flap, which brings you back down to your desired height and prevents the foils from breaking the surface.

In terms of construction, the judges praise its carbon-and-epoxy build quality and the all-up weight of 180 pounds, which makes it easy to get to and from the water. With the F101 sitting on its dolly in the boat park, going sailing is as simple as pulling back the covers, hoisting the main and launching from a dock, beach or boat ramp with minimal fuss.

“What I like about it is that it’s one of those boats that you buy and don’t need to add anything to it,” Allen says. “There’s ­nothing to change out or upgrade.”

For simplicity, the boat is set up with adjustments that let you ratchet up the experience as you climb the learning curve. On the rudder foil, for example, there is a clear numbering system so that as you twist the tiller extension, you change the rudder rake. The baseline setting is zero, and it’s the same for the main foil. The only thing left is to balance the forces with the mainsheet.

“When I first got up on the foils, I was thinking to myself, ‘This is too easy; I should be working harder,’ ” Powlison says. “As they said, this boat solves a lot of the problems associated with other foiling dinghies. It’s a great high-performance boat that represents the next step in making foiling accessible to the public.”

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Published on November 18th, 2016 | by Editor

F101: Foiling For Everyone

Published on November 18th, 2016 by Editor -->

Introducing Foiling 101…the all carbon F101 is an all new foiling trimaran, aimed specifically at those sailors who thought foiling was too difficult for them. The F101 concept originates from the experience of teaching people to foil in the international Moth class, and addressing the main barriers they faced. So the mission was to create a foiling boat that anyone can sail. More details here .

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Sail Smarter: The F101 Trimaran Redefines Foiling for All Skill Levels

The F101 is an advanced foiling trimaran that brings a fresh approach to sailing with its smart and efficient design. This all-carbon vessel, weighing just 75 kg, features a main hull, foils, floats, and beams for lightweight durability. Stretching 5.4 meters with a 2.55-meter beam, it sports a sail area of 14.5 square meters, suitable for sailors weighing between 60 to 150 kg. The F101 can launch into a foil at wind speeds as low as 7 knots and reach speeds up to 25 knots. It includes retractable foils for shallow water launches and a quickly adjustable mainsail, enhancing safety and convenience near shores. The tri-hull design makes it almost impossible to capsize, ideal for beginners, and maintains stability even when not foiling. It also features a furling downwind sail for extra power in light winds, ensuring a safe return if winds diminish. The F101's design supports quick recovery onto the foils if it tips, providing an easy and thrilling sailing experience for novices and seasoned sailors alike.

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Foiling 101

• Uncategorized

The all-new Foiling 101 launches!

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Introducing Foiling 101

Foiling for everyone….

The all carbon F101 is an all-new foiling trimaran, aimed specifically at those sailors who, for whatever reason, thought foiling to be too difficult for them!

The F101 concept originates from the experience of teaching many people to foil in the international Moth class, and addressing the main barriers they faced. So we set about creating a new boat without the design restrictions of a box rule – in this way foiling could be made easier.

Our ethos is simple; to create a foiling boat that anyone can sail.

F101 design features

• A strict one-design foiling boat capable of carrying larger sailors and/or a passenger/crew
• All carbon design
• A safe/stable platform when foiling or at low speeds
• Able to launch and land from a trolley in shallow water
• Easy to rig, sail and handle

The technical stuff…

Long central hull gets the rudder and main foil further apart, removing some of the limitations and bad habits that other foiling boats suffer from.

• All carbon construction: main hull, foils, floats, beams, 2 piece mast.
• Very simple, well thought out control systems.
• All up weight: 80 kg
• Sail area: 8.5m2 main + 7m2 gennaker
• Target crew weight range: 70-120 kg
• Take off wind speed: 8 kts
• Target boat speed range: 10-25 kts

Who’s behind the project?

The F101 is a collaboration of some of the major brands within the marine industry.

• Sportsboartworld.com – worldwide distributors for the SB20 one-design Sportsboat
• Pro-vela.com – the world’s first foiling school, teaching foiling since 2009
• Whiteformula.com – one of the worlds leading brands for small racing multihulls as well as the builder of the SB20 and Whisper foiling catamaran
• Ron Price of Solent University – designer of the Whisper foiling catamaran
• Hyde Sails, Selden masts and Harken have all been an integral part of the deign group
• A new company, Foiling World Ltd has been incorporated and will be the trading company for the F101

Foiling F101 : Foiling easier, bathing less

Michael Good

 ·  29.11.2016

Foiling - the "off the ground" sailing experience on hydrofoils is on everyone's lips. Whether it's a small Moth or an Imoca Open 60 - anything that is supposed to be really fast on the water must now also be able to "fly". But getting started is not that easy, as YACHT editor Lars Bolle during his self-experiment on the Foiling Moth had to experience first-hand.

An initiative from England now wants to make it easier for everyone to enter the world of foiling with the Foiling F101 project. As a trimaran with three hulls, the F101 sails more stably than a moth and cannot capsize. This means: less swimming for beginners and also for advanced sailors and when manoeuvring. The F101 can be sailed well and safely even in light winds, even without an acrobatic balancing act.

The F101 should be able to take off at a wind speed of just eight knots, depending of course on how heavy the glider or gliders are. The wings are designed for a crew weight of between 70 and 120 kilograms, so the small aircraft could also be sailed by two people. The mainsail measures 8.5 square metres, and a small, flat gennaker with a sail area of 7.0 square metres can be rolled out for the space wind courses. Launching and retrieving at the ramp or on the beach should also be easier than with the Moth. The two T-foils (centreboard and rudder) can be raised using a mechanism. They are then locked at the bottom for the flight phase.

The F101 is built by White Formula in England, entirely from carbon fibre. Ready to sail, the foiler will weigh just 80 kilograms. Among other things, the shipyard also builds the widely used SB20 standard class and the Whisper" foiling catamaran . With a width of 2.55 metres, the small trimaran can also be transported on a trailer without being completely dismantled. The carbon mast is also in two parts. The makers have not yet drawn up a detailed price list. However, the F101 is expected to come onto the market for less than 16,000 euros.

The project website

Moth sailing self-experiment at YACHT tv

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2019 Foiling World F101

• Description

Seller's Description

Play hard, go fast – up to 25 knots. And yes, they are trimarans, but once “flying”, they ride on two foils! Actually, I have 2 of these for sale, a 2018 and 2019. Both are in excellent condition and both have new sails and road trailers. Check these web sites: https://www.youtube.com/results?search_query=f101 sailboat https://www.sailingworld.com/…/boat-of-the-year-2020…/ https://www.parallel45marine.com/f101-foiling-trimaran/ Contact me for additional info and photos.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

This listing is presented by TheBeachCats.com . Visit their website for more information or to contact the seller.

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