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What Size Yacht Requires a Crew? (For Different Lengths)

While smaller yachts can be operated by a single person, larger yachts require a trained crew to operate them safely. Different types of yachts also have different crew needs, which can depend on the yacht's size, features, and intended use. In this article, we'll let you know what size yacht requires a crew, and how many crew are needed for different types and lengths of yacht.

Yachts that are over 30 feet in length require a crew to operate them safely. A yacht that is 100 feet in length requires a crew of at least four to six people, including a captain, engineer, stewardess, and deckhand. Meanwhile, yachts that are under 30 feet in length can be operated by a single person.

Recreational yachts are typically smaller and used for leisure activities like fishing, cruising, and water sports. Since these yachts are usually 30 feet or smaller, they can be operated by a single person without a crew. Let's see how many crew members are needed for other types of yachts.

• If the yacht is under 30 feet and is being used for recreational cruising, a crew of two is usually sufficient.
• A 90-foot yacht with multiple decks and luxury amenities may require a crew of 8–12 people, including a captain, first mate, chef, stewardess, and deckhand.
• For sailing yachts between 30 and 50 feet, a crew of four to six is typically required.
• A small superyacht may have a crew of around 20 people, while a larger one may require a crew of 50 or more.
• The cost of hiring a full-time yacht crew can range from $50,000 to $200,000 per crew member per year.

On this page:

Crew requirements for different yacht sizes, yacht types and their crew needs, the cost of hiring a yacht crew and the role of each member.

The size of the yacht is a key factor in determining whether you will need a crew and how many crew members you will require. Below is a table summarizing the crew size requirements for different yacht sizes:

Crew size for yachts under 30 feet

Yachts that are under 30 feet in length are generally small enough to be operated by a single person. However, you still need to have some experience and knowledge of boating to operate them safely. It is also recommended to have at least one additional person on board for safety reasons.

If the yacht is being used for recreational cruising, a crew of two is usually sufficient. You may also need to obtain a recreational boating license depending on your location.

Not sure how to get a boating license? Find which state you're in and get a boating license here.

Crew size for yachts between 30 and 75 feet

Yachts that are between 30 and 75 feet in length may require a crew. These yachts are designed to be operated by a small crew or a couple, with one person serving as captain and the other as crew.

If you have experience and the yacht has upgraded features like autopilot, you may be able to captain your own yacht without a crew. However, if you are new to yachting or the yacht has more advanced features, you may need to hire a crew.

For recreational cruising, a crew of two to four people is usually sufficient . For larger yachts, there may be additional crew members such as a chef, stewardess, or engineer.

Crew size for yachts over 75 feet

Yachts that are over 75 feet in length generally require a crew to operate them safely. The exact number of crew members you will be based on the size and features of the yacht.

• A 90-foot yacht with multiple decks and luxury amenities may require a crew of 8-12 people, including a captain, first mate, chef, stewardess, and deckhand.
• A 100-foot yacht with advanced navigation and communication systems may require a crew of 10-15 people, including a captain, engineer, deckhand, chef, stewardess, and possibly a security officer.
• A 120-foot yacht with a helicopter pad, swimming pool, and other high-end features may require a crew of 12-20 people, including a captain, engineer, deckhand, chef, stewardess, helicopter pilot, and other specialized staff as needed.

Crew size for yachts over 300 feet

Bigger yachts require more crew members because they tend to be more complex and have more systems and equipment that need to be maintained and operated. Additionally, larger yachts typically have more amenities and features that require specialized staff, such as spa therapists, dive instructors, and security personnel.

A yacht that is 300 feet or more in length may have multiple decks, a helipad, a swimming pool, a movie theater, a gym, and other luxurious amenities that require a larger crew to operate and maintain.

In addition, larger yachts may require more crew members to ensure the safety of the guests and the vessel, especially when navigating in challenging waters or during adverse weather conditions. Larger yachts also often provide a higher level of service, which requires more crew members to ensure that every guest's needs are met.

Different types of yachts have different crew needs, which can depend on the yacht's size, features, and intended use. Here's what you need to know about yacht types and their crew needs:

Crew size for recreational yachts

Recreational yachts are typically smaller and used for leisure activities like fishing, cruising, and water sports. Yachts that are 30 feet or smaller can usually be operated by a single person without a crew.

However, larger recreational yachts, like those in the 50-100-foot range, may require a small crew for maintenance and management.

Crew size for sailing yachts

Sailboats are a popular type of yacht used for racing, cruising, and exploring. For sailing yachts between 30 and 50 feet, a crew of four to six is typically required. This crew would include a captain, a first mate, a cook, and one or two deckhands.

For yachts over 50 feet, the crew size can range from six to 20 or more. This is because some yachts may also have additional staff, such as a chef, a stewardess, and a masseuse. These staff members are typically hired to provide luxury services to guests onboard.

One of the hidden costs of buying and owning a 50-foot yacht is the costs for staff and crew, which ranges around $50,000 - $150,000 per year.

Crew size for superyachts

Superyachts are the largest and most luxurious yachts on the market, typically measuring over 100 feet in length. A small superyacht may have a crew of around 20 people, while a larger one may require a crew of 50 or more.

Larger superyachts with more amenities and more guests on board will require a larger crew to ensure that all aspects of the vessel are properly maintained and operated. The team will typically include a captain, first mate, engineer, chef, stewardesses, deckhands, and other specialized roles depending on the yacht's amenities.

Some owners may prefer a smaller crew to maintain a more intimate and personalized experience, while others may opt for a larger crew to ensure that all tasks are handled efficiently and to the highest standard.

Crew size for commercial yachts

Commercial yachts are required to have a crew size that is appropriate for the size and type of the vessel, as well as the number of passengers on board. The crew size can vary greatly depending on the yacht's size, amenities, and intended use.

In general, larger yachts will have a larger crew, while smaller yachts may only require a few crew members. For example, a small yacht that is used for day trips or short-term charters may only require a captain and a mate. However, a larger yacht used for extended charters or as a luxury hotel at sea may need a larger crew.

The crew size for commercial yachts is regulated by various maritime authorities, such as the International Maritime Organization (IMO) and the United States Coast Guard (USCG). These authorities have established minimum crew requirements based on the size and type of the yacht, as well as the number of passengers on board.

Based on USCG requirements, a commercial yacht that is less than 100 gross tons and carries up to 12 passengers must have at least one licensed captain and one crew member. If the yacht carries between 13 and 36 passengers, it must have at least two licensed crew members. For yachts that are over 100 gross tons, the crew size requirements will be higher.

A captain license costs around $700 - $800 , but this may vary according to the country as well as potential extras you might need to purchase.

Crew size for luxury yachts

Luxury yachts are designed for comfort and style, typically featuring high-end amenities like spas, gourmet kitchens, and entertainment systems.

Luxury yachts require a larger crew because they are typically larger, more complex, and more luxurious than other types of boats. A larger crew is necessary to ensure that everything runs smoothly and that the guests have an enjoyable and comfortable experience on board.

Here are some of the reasons why luxury yachts require a crew of 10-30 persons:

Safety: A larger crew is necessary to ensure the safety of the guests and the yacht. The crew must be trained and experienced in handling emergency situations, such as fires, medical emergencies, and adverse weather conditions.

Navigation: Luxury yachts require a skilled crew to navigate the vessel safely and efficiently. The captain and crew must be familiar with the yacht's systems, equipment, local waterways, and navigation rules.

Maintenance: Luxury yachts require constant maintenance to keep them in top condition. A larger crew is necessary to perform routine maintenance tasks, such as cleaning, painting, and repairing the yacht's systems and equipment.

Service: Luxury yachts are known for their high level of service and hospitality. A larger crew is necessary to provide guests with personalized service, including gourmet meals, housekeeping, and other amenities.

Entertainment: Luxury yachts often have a variety of entertainment options, such as water sports equipment, movie theaters, and music systems. A larger crew is necessary to operate and maintain these amenities, as well as to provide instruction and assistance to the guests.

The cost of hiring a full-time yacht crew can range from $50,000 to $200,000 per crew member per year. This includes their salary, benefits, and any other expenses associated with their employment, such as training and uniforms.

Here's a breakdown of the average annual salaries for different yacht crew positions:

The roles and responsibilities of the captain

• Responsible for the overall operation of the yacht including navigation, safety, and communication with other vessels
• Must have extensive knowledge of waterways
• Must make quick decisions in case of emergency
• Must hold valid Merchant Mariner Credential (MMC) issued by USCG
• For yachts over 100 gross tons, a captain must hold a USCG license for appropriate tonnage and route
• May need to hold specific endorsements, such as a towing endorsement or a radar observer endorsement

The roles and responsibilities of the captain engineer

• Responsible for mechanical systems on board the yacht such as engines, generators, and other equipment
• Must have a good understanding of how systems work
• Troubleshoots problems that arise
• Works closely with the captain and other crew members
• May be responsible for managing inventory and ordering spare parts and supplies

The roles and responsibilities of the stewardess

The stewardess is the first point of contact for guests and they are responsible for the following:

• Greet guests warmly and show them to their cabins
• Provide information about the yacht and its amenities, as well as local attractions and activities
• Clean and maintain guests' cabins
• Make beds and ensure fresh towels and linens
• Responsible for serving meals and drinks, setting the table, and clearing dishes

The roles and responsibilities of the deckhand

The deckhand is an entry-level position on a yacht and they work under the supervision of the first mate. They are responsible for a variety of tasks such as:

• Cleaning the yacht and handling lines and fenders
• Assisting with navigation and docking
• Maintaining the exterior of the yacht, such as washing and waxing the hull, cleaning the decks and windows, and maintaining the yacht's equipment and machinery

The roles and responsibilities of the chef

• Responsible for providing exceptional culinary experiences for guests
• Plans menus, prepares meals and manages galley and kitchen area
• Plans menus that meet the dietary preferences and restrictions of guests
• Creates menus for breakfast, lunch, and dinner, as well as snacks and appetizers
• Responsible for provisioning the yacht with fresh ingredients and supplies
• Prepares high-quality meals and presents them well
• Manages galley and kitchen area, including cleaning and maintaining the kitchen, managing inventory and ordering supplies, and ensuring that all equipment is in good working order

The roles and responsibilities of the first mate

• Considered as the second in command on a yacht
• Works closely with the captain to ensure the safe operation and navigation of the boat
• Responsible for managing crew and overseeing day-to-day activities on board
• Assists captain with navigation and piloting of yacht
• Monitors weather conditions, charts courses, and ensures the yacht is on track and avoiding potential hazards
• Manages crew and delegates tasks as needed
• May be responsible for scheduling and coordinating crew shifts, managing inventory and ordering supplies, and ensuring that the yacht is clean and well-maintained
• May serve as liaison between guests and captain, ensuring that their needs are met and that they have an enjoyable experience on board

The roles and responsibilities of the second mate

• Assists captain and first mate in navigation and operation of yacht
• Maintains the yacht's navigational equipment, including GPS, radar, and other electronic devices
• Ensures all charts and publications are up-to-date and that any necessary corrections or updates are made.

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Better Sailing

Sailing Crew Roles and Names

The skipper is responsible for the safety of the yacht and the crew’s welfare. However, sailing a boat successfully requires teamwork from the skipper and the crew. This will ensure that all maneuvers—such as leaving a mooring, hoisting sails, changing tacks, reefing, or entering a marina—can be completed with maximum enjoyment and minimum stress.

Boat Captain/Skipper

It may come as a shock, but the skipper is not necessarily the helm. This crew member must ensure that the boat is ready for sailing. He or she needs to make sure that all members of the crew are accounted for. They also need to make sure that food and fuel are sufficient, and sails are ready for hoisting. The skipper is in charge of keeping communications open onboard and help other crew members if needed. Also, they are usually responsible for talking the whole crew through maneuvers as they are about to happen and making sure that all crew members are ready.

What Makes A Good Skipper?

• Responsibility : The skipper is responsible for all aspects of the running of the yacht, its safety, and the crew’s wellbeing.
• Skills : He or she should be comfortable with sailing and navigation skills, inspire confidence in their crew, and be a good communicator.
• Delegation : A good skipper should keep on top of all his or her duties and give the crew tasks that are appropriate to their experience.
• Patience : He or she should be patient with inexperienced crew members and be able to run the yacht with a light touch while retaining respect and authority. 
• Briefing : It is the skipper’s role to plan the passage in detail before setting sail. 
• Involvement : A good skipper will also encourage the crew to get involved in passage planning and navigation and will always listen to their opinions.

Tactician 

The tactician’s role is to get the boat around the racecourse as fast as possible. For that, he needs to take into account the wind, tide, and other competitors, as well as the crew’s ability. They also need to make sure that the boat has the correct course. In short, the tactician is the brains of the sailboat. The tactician must communicate with the helm and skipper to run through maneuvers.

The Helm (Driver)

The Helm is often mistakenly perceived as the skipper. This crew role is to steer the boat where the tactician says and to keep sailing as fast as possible. The helm is also helping with other tasks, but they must focus on the job at hand as much as possible. The helm and the tactician must be in close communication with each other.

Head Sail Trimmers

This crew role is for two members, one who will cut release the sail when going through the tack while the other pulls in the full sail. The crew member releasing can then assist with tailing the sail or trimming it – which is a good example of teamwork. Also, the trimmer should keep adjusting the sail, depending on the point of sail, and should be very focused on that task. Also, the trimmers are in charge of trimming the spinnaker sail and guy when going downwind. Main communication is kept between each other, boat captain and tactician. Pre-start these guys will have a lot to do!

This crew member is in control of all sail hoists and drops depending on the wind. The bowman spends most of their time on the foredeck (the deck at the forward part of the sailboat), preparing for spinnaker hoists, gibes, and drops. 

This crew member is a combination of both the bowman and mastman. They are in control of all of the running rigging which comes into the cockpit. This is a vital role and always in the middle of the action. Pitmans must keep communication is between bowman, mast man, and skipper—the eyes and ears for the foredeck crew.

This position is reserved for the stronger members of the crew. A mastman’s foremost task is to assist with the speedy hoisting of the sails during maneuvers. The mast man and bowman go hand in hand and help each other on hoists and drops. The main communication is with the bowman, pitman, and skipper.

No sailing team is complete without its ballast crew members that help to balance the boat in order to reach its top possible speeds and maneuverability. These members of the crew are called ‘ballast’ and are key when racing for the mark. Ballast crew members have the best seat in the house.

What Makes a Good Crew Member?

• Key qualities : All crew members require a positive attitude, sense of humor, and the ability to get along with others in the confined space aboard a cruiser. 
• Willingness to Learn : Good crew members are willing to learn and to take an active role in all aspects of running the yacht.
• Attentive : Diligent crew listen to the instructions carefully and ask questions if they do not understand anything.
• Working As a Team : All members of the crew must remember that they are part of a team. A happy gathering in the cockpit at the end of the passage is an indicator that each member of the crew has done their job.

Peter is the editor of Better Sailing. He has sailed for countless hours and has maintained his own boats and sailboats for years. After years of trial and error, he decided to start this website to share the knowledge.

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Do You Need A Crew For Yachts? Helpful Tips (With 6 Examples)

Whether or not you need a crew for a yacht depends on several factors.

In this article, we will help you figure out exactly what you need.

Table of Contents

Here’s When You Need a Yacht Crew:

With the appropriate boat licenses, you can typically operate a boat up to 75 feet without a crew. However, most yachts need crew for docking, launching, caring for guests, and watching for danger or other boats. Without a crew, an autopilot feature may be crucial to help with keeping you on course.

A crew can help because someone must always be on watch to look for nearby vessels or other dangerous situations, as well as docking

Here’s everything you need to know about when you will need a yacht crew:

What Exactly do you Need a Yacht Crew for?

Yacht crews do a lot of things to help maintain the boat and keep it running smoothly.

Some of these duties include:

• Launching and docking the boat
• Accounting or managing the operating expenses
• Cooking, bartending, or other types of services for guests
• Engineering and/or regular maintenance for onboard appliances and ship mechanics
• Piloting and driving the boat
• Cleaning the interior and general housekeeping duties
• Supervising guests and other crew members on board

Here’s a list we made with 10 typical tasks performed by the crew on a yacht . It’s a great read if you are considering whether you will need a crew or not!

Depending on your boat and your experience, you might not need all of those duties to be done. For example, superyachts might need a cook, while sportfishing yachts might not (even if they have a grill).

Some boaters prefer to do the piloting and engineering independently, while others want to lounge around and enjoy the weather.

Make sure you analyze your reasoning for having a boat before you hire people you might not need to employ.

Do you consider boating to be a social activity? Or do you prefer to boat alone, where you can enjoy the peace that can only be found on the water?

If you’re in the latter group, you may have pondered over one or more of these questions before:

• Can I pilot this boat on my own?
• Do I need a crew?
• Why do I need a crew?

What is the Biggest Boat I can get Without Having to Hire a Professional Crew?

It really does depend on your experience with a recreational boat and how comfortable you are on your boat.

For avid and experienced boaters, anywhere from a 30’ to a 74’ sportfishing boat is a decent size that they can handle independently.

There are many things to consider when figuring out what boat to buy , especially if you plan on operating the watercraft on your own.

Remember that you’ll probably need help (even if it’s just your family and/or friends) who can help you cast off the lines and tie up when you need to dock.

Also, keep in mind that you’ll need an autopilot if you plan on using a powerboat on your own. Here’s everything you need to know about which yachts have autopilots.

Yes, many people can handle these tasks on their own, but they also have the help of electronic charting and steering, pod drives, and bow thrusters, which can help hold the boat’s position while you casually tie off.

Which Licenses Do I Need to Operate a Yacht Without a Crew?

There are several different licenses you need to know about when we are talking yachts.

Especially if you are bringing guests (if they are paying for the trip).

For more information, here is everything you need to know about boat license types .

Does Every Motor Yacht Need to Have a Crew?

When it comes to boating, there are many different types of people drawn to this recreational activity.

Some want to race, others fish, while others want to cruise around the harbor while catching some rays. In addition to that, some want to spend that time with friends and family, while some want to enjoy some peace while out on the water.

There is nothing wrong with being a “do-it-yourself” type of boater, whether you’re into sailing yachts or motor yachts. However, there are plenty of reasons why boating with a crew can come in handy.

Safety & Emergency Help:

Having a crew is safer.

It is always safer to go out on the water with other people. In emergencies, when something unexpected happens, or even if you need a hand with something, it is safer to have other passengers and crew members there for you to count on.

When you are out on the water with a limited crew or yourself, you have to be extra careful since there isn’t anyone there who can rescue you or help you get out of a tough situation.

Wearing a life jacket regularly all by yourself can get cumbersome, after all.

Because of that, short-handed boatmen often use the “Lifesling,” which is a horseshoe-shaped collar secured to a victim to help get them back on board.

Some offshore sailors tow a long line behind the vessel for a crewmember to grab if they fall overboard.

Guests & Cleanup Help:

If your yacht is commercial or hosts guests, operating it is like owning a small hotel.

Crews are a  must when you have guests onboard, as you will not be able to pilot the yacht, dock, launch, clean, cook, serve, and entertain guests.

Furthermore, you shouldn’t have to!

Guest experiences are made better when you have all hands on deck to help keep things running smoothly and safely. Taking on that burden alone is not necessary.

Family Yacht or Single Captain:

Some families like to own their own yacht and don’t care about crews or getting help out on the water.

Families of four or five could potentially crew the yacht themselves!

Therefore, if your ship is for personal and private use and you don’t want to hire a crew, make sure you bring enough people with you to help you take care of the ship’s requirements.

If you are a single sailor, however, and you captain, dock, launch, and maintain the ship yourself, make sure that you have open radio communications if you ever need help and have to call the coast guard.

What Do I Need to Own and Sail a Yacht?

If you choose to set sail on your own, it is important to have the right disaster and spare equipment on board in case of emergency.

A common checklist of everything you need to do, from trailering to getting underway to cleaning the boat, can be handy in emergencies.

After all, it can be difficult to think of what to do when your adrenaline is through the roof.

Let’s go over some basic emergency equipment for your boat as well as some handy spare parts you should keep close at hand:

• PFD’s, horn, fire extinguisher, and other appropriate safety equipment
• Floatation devices and emergency raft
• VHF radio, a cell phone, or a satellite phone
• A pair of binoculars
• Maps and charts
• Two to four fenders
• Some extra dock and anchor lines
• An extra plug for your hull drain
• An extra set of keys
• A spare bearing set and tire for your trailer
• Some engine oil (just in case)
• A basic tool kit (look and make sure that the tools match the hardware on your boat)
• A couple of flashlights
• Duct tape (which will always come in handy)
• Brush for your boat
• A trailer coupler lock
• Your boat cover
• Some sunscreen and a hat (and other skin protection)
• Spare alternator belt
• Spark plugs
• An extra set of bearing and hubs
• Extra prop and hardware
• Another water pump kit
• Spare flags for emergencies

What Training do Crewmembers need to Operate a Big Yacht?

If you decide to get a crew, each member of your crew must have different qualifications, based on their role on the boat.

For professional crew members, two of the bigger training certificates are:

• STCW Basic Safety Training – This should be required of your entire crew to work on a charter yacht or a commercial yacht. It is not required for private boats, but it is highly desirable and wouldn’t hurt to have on hand.
• ENG1 Seafarer Medical Certificate – This is a medical examination required to prove whether or not you are fit for working on the water. An MCA-approved doctor must issue this.

Each Crewmember Must Have the Following (by job description):

• MCA Efficient Deckhand training (EDH)
• Deck/Yacht training
• VHF radio training
• RYA Radar training and the RYA competent crew training
• MCA Proficiency in designated security duties (PDSD)
• RYA Powerboat (at least level 2) and the RYA Tender Operator
• General GRP and carpentry repairs
• An interior crew-training course or courses, such as the PYA GUEST Program
• STCW Proficiency (Medical First Aid) and the STCW Proficiency in Survival Craft and Rescue Boats
• VHF Radio Short Range Certificate (GMDSS/DSC)
• RYA Powerboat (at least level 2)
• PWC Personal Watercraft Proficiency
• MCA Proficiency in Designated Security Duties (PDSD) and the MCA Human Element, Leadership and Management (HELM) at Operational Level
• Deck / Yacht Rating
• AEC Approved Engine Course
• MEOL Marine Engine Operator License
• Marine Diesel Training and Experience
• Auxiliary Equipment & Basic Ship Construction
• MCA Sea Survival for Yachtsman
• Advanced Fire Fighting
• STCW Proficiency in Medical First Aid
• Chief Engineer Statutory & Operational Requirement
• Applied Marine Engineering

Final Thoughts:

Having a crew aboard your vessel will help you ensure that you have a fun, leisurely cruise or voyage.

An experienced crew can help ease your tensions and worries. A crew can help alleviate the chaos and energy that might come with frantically doing things on your own.

There are many yachts out on the water, which is operated “short-handed.”

This means that it is being operated on less than the usual number of crew members that would typically be used.

In the past, it was common practice that 70-foot boats had dedicated captains and crew members (at least one). These days, 80-foot boats are being crewed by husband-wife teams.

If you choose to go this route, make sure to:

• Choose the right yacht for you (the right size and type)
• Outfit the yacht for extra amenities, balanced with simplicity (don’t make things overcomplicated)
• Prep yourselves by talking through scenarios beforehand, planning, and taking your time.
• Consider anchoring via remote controller for the power windlass.
• Have the appropriate emergency gear on board.

Being a short-handed boater can seem intimidating, but it can be a wonderful adventure as well.

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Divers find body of Mike Lynch's daughter Hannah, 18, missing after superyacht sank

Italian divers have retrieved the body of Mike Lynch 's 18-year-old daughter, Hannah Lynch, the last person who went missing after the Bayesian , the British tech tycoon's family yacht, sank off the coast of Sicily earlier this week.

The 184-feet-long, U.K.-registered vessel capsized and rapidly sank off the port of Porticello, near Sicily's capital of Palermo, as an unexpected storm swept the area before sunrise on Monday.

Specialist divers discovered Hannah Lynch's body on Friday after five days of scouring the sunken boat, an unnamed senior official with knowledge of the rescue operation told Reuters.

The disaster set off an exhaustive search for six of its 22 passengers, who were unaccounted for after the ship sank. Mike Lynch's body was discovered on Thursday, while the bodies of Jonathan Bloomer, a non-executive chair of Morgan Stanley International, his wife, Judy Bloomer, Clifford Chance attorney Chris Morvillo, who was a U.S. citizen, and his wife, Neda Morvillo, were discovered on Wednesday. The five bodies were all located inside the sunken ship.

Recaldo Thomas, the ship's cook and a citizen of Antigua, was pronounced dead on Monday after his body was found near the ship. Thomas also went by Ricardo, according to media reports .

The bodies will be officially identified and autopsies will be performed in Palermo.

The fire brigade said on Friday the rescue operation was "long and delicate" – the ship sits more than 160 feet underwater, and its inner passageways are narrow, posing a challenge to divers. More than 400 rescuers were involved, including 28 specialist divers, officials said.

Lynch's family said in a statement on Friday the family "is devastated, in shock and is being comforted and supported by family and friends."

"Their thoughts are with everyone affected by the tragedy. They would like to sincerely thank the Italian coastguard, emergency services and all those who helped in the rescue," they wrote.

"Their one request now is that their privacy be respected at this time of unspeakable grief."

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A judicial investigation has been opened into the sinking, which has baffled naval marine experts, who say a boat like the Bayesian , built by Italian high-end yacht manufacturer Perini, should have withstood the storm.

Prosecutors in the nearby town of Termini Imerese have opened an investigation into whether human errors were a factor. Coast Guard officials already have questioned the captain, James Cutfield, and surviving crew members and passengers as part of the investigation.

A maritime legal expert told USA TODAY the disaster could lead to lawsuits and possible criminal charges against Cutfield.

"As far as the charges, it appears that the captain will be investigated for not having due diligence in command of his vessel," said Mitchell Stoller, a maritime expert witness and captain. "He cannot discharge his duties."

Stoller said a captain's general duties include watching local weather reports and preparing for incoming storms. He said ships usually don't remain anchored during a storm so that they can maneuver in turbulent waters − Italian authorities have said the Bayesian was likely anchored before the disaster.

"The general standard of care in this situation is to monitor the weather, exercise caution, have a night watch, have the engine going, ready to maneuver," he said.

Giovanni Costantino, CEO of The Italian Sea Group, which owns Perini, told Reuters the crew made a string of "indescribable, unreasonable errors" in the leadup to the disaster. Design or construction errors did not play a role, he said.

No charges have so far been announced. Prosecutors will hold a news conference on Saturday.

Cutfield did not immediately return a request for comment from USA TODAY sent on Friday to a Facebook profile that appeared to belong to him. It is unclear if Cutfield has retained an attorney.

Complex Salvage Operation

Further inspections of the ship, which officials say is intact and lying on its right side, could give investigators more clues. Authorities may pull it out of the water, but the operation would be expensive and complicated.

Nick Sloane, a South African engineer who led the operation to recover the Costa Concordia, a cruise liner that sank 12 years ago, estimated such an operation could cost up to $16.7 million, in interviews with Italian media on Friday.

Pulling the yacht to the surface could take several days, and would need to be done "very, very slowly," he told daily La Repubblica. The entire operation could take up to eight weeks and would need to be completed by mid-October, he said.

Contributing: Reuters

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Lynch Yacht Sinking Off Sicily Proves as Baffling as It Is Tragic

As bodies were recovered, the authorities and experts wondered how a $40 million, stable and secure vessel could have sunk so quickly.

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By Emma Bubola and Michael J. de la Merced

Emma Bubola reported from Porticello, Italy, and Michael J. de la Merced from London.

Two months after being cleared in a bruising legal battle over fraud charges, the British tech mogul Mike Lynch celebrated his freedom with a cruise. He invited his family, friends and part of his legal team on board his luxury sailing yacht, a majestic 180-foot vessel named Bayesian after the mathematical theorem around which he had built his empire.

On Sunday night, after a tour of the Gulf of Naples, including Capri, and volcanic islands in the Eolian archipelago, the boat anchored half a mile off the Sicilian coast in Porticello, Italy. It chose a stretch of water favored by the Phoenicians thousands of years ago for its protection from the mistral wind and, in more recent times, by the yachts of tech billionaires. The boat was lit “like a Christmas tree,” local residents said, standing out against the full moon.

But about 4 a.m., calamity unfolded. A violent and fast storm hit the area with some of the strongest winds locals said they had ever felt. Fabio Cefalù, a fisherman, said he saw a flare pierce the darkness shortly after 4.

Minutes later, the yacht was underwater. Only dozens of cushions from the boat’s deck and a gigantic radar from its mast floated on the surface of the sea, fishermen said.

In all, 22 people were on board, 15 of whom were rescued. Six bodies — five passengers and the ship’s cook — had been recovered by Thursday afternoon, including that of Mr. Lynch, an Italian government official said, adding that the search was continuing for his daughter.

It was a tragic and mystifying turn of events for Mr. Lynch, 59, who had spent years seeking to clear his name and was finally inaugurating a new chapter in his life. Experts wondered how a $40 million yacht, so robust and stable could have been sunk by a storm near a port within minutes.

“It drives me insane,” said Giovanni Costantino, the chief executive of the Italian Sea Group, which in 2022 bought the company, Perini, that made the Bayesian. “Following all the proper procedures, that boat is unsinkable.”

The aura of misfortune only deepened when it emerged that Stephen Chamberlain, 52, a former vice president of finance for Mr. Lynch’s former company and a co-defendant in the fraud case, was killed two days earlier, when he was hit by a car while jogging near his house in England.

Since June, the two men had been in a jubilant mood. A jury in San Francisco had acquitted both on fraud charges that could have sent them to prison for two decades. There were hugs and tears, and they and their legal teams went for a celebratory dinner party at a restaurant in the city, said Gary S. Lincenberg, a lawyer for Mr. Chamberlain.

The sea excursion was meant as a thank-you by Mr. Lynch to those who had helped him in his legal travails. Among the guests was Christopher J. Morvillo, 59, a scion of a prominent New York family of lawyers who had represented Mr. Lynch for 12 years. He and his wife, Neda, 57, were among the missing.

So, too, was Jonathan Bloomer, 70, a veteran British insurance executive who chaired Morgan Stanley International and the insurer Hiscox.

The body of the ship’s cook, Recaldo Thomas, was recovered. All the other crew members survived. Among them was Leo Eppel, 19, of South Africa, who was on his first yacht voyage working as a deck steward, said a friend, who asked not to be identified.

Since the sinking, the recovery effort and investigation have turned the tiny port town of Porticello, a quiet enclave where older men sit bare-chested on balconies, into what feels like the set of a movie.

Helicopters have flown overhead. Ambulances have sped by with the sirens blaring. The Coast Guard has patrolled the waters off shore, within sight of a cordoned-off dock that had been turned into an emergency headquarters.

On Wednesday afternoon, a church bell tolled after the first body bag was loaded into an ambulance, a crowd watching in silence.

The survivors were sheltering in a sprawling resort near Porticello, with a view of the shipwreck spot, and had so far declined to comment.

Attilio Di Diodato, director of the Italian Air Force’s Center for Aerospace Meteorology and Climatology, said that the yacht had most likely been hit by a fierce “down burst” — when air generated within a thunderstorm descends rapidly — or by a waterspout , similar to a tornado over water.

He added that his agency had put out rough-sea warnings the previous evening, alerting sailors about storms and strong winds. Locals said the winds “felt like an earthquake.”

Mr. Costantino, the boat executive, said the yacht had been specifically designed for having a tall mast — the second-tallest aluminum mast in the world. He said the Bayesian was an extremely safe and secure boat that could list even to 75 degrees without capsizing.

But he said that if some of the hatches on the side and in the stern, or some of the deck doors, had been open, the boat could have taken on water and sunk. Standard procedure in such storms, he said, is to switch on the engine, lift the anchor and turn the boat into the wind, lowering the keel for extra stability, closing doors and gathering the guests in the main hall inside the deck.

12 guests occupied the yacht’s six cabins. There were also 10 crew members.

Open hatches, doors and cabin windows could have let in water during a storm, according to the manufacturer.

Open hatches, doors and

cabin windows could

have let in water

during a storm,

according to the

manufacturer.

Source: Superyacht Times, YachtCharterFleet, MarineTraffic

By Veronica Penney

The New York Times attempted to reach the captain, James Cutfield, who had survived, for comment through social media, his brother and the management company of the yacht (which did not hire the crew), but did not make contact.

So far none of the surviving crew members have made a public statement about what happened that night.

Fabio Genco, the director of Palermo’s emergency services, who treated some of the survivors, said that the victims had recounted feeling as if the boat was being lifted, then suddenly dropped, with objects from the cabins falling on them.

The Italian Coast Guard said it had deployed a remotely operated vehicle that can prowl underwater for up to seven hours at a depth of more than 980 feet and record videos and images that they hoped would help them reconstruct the dynamics of the sinking. Such devices were used during the search and rescue operations of the Titan vessel that is believed to have imploded last summer near the wreckage of the Titanic.

After rescuers broke inside the yacht, they struggled to navigate the ropes and many pieces of furniture cluttering the vessel, said Luca Cari, a spokesman for Italy’s national firefighter corps.

Finally, as of Thursday morning, they had managed to retrieve all but one of the missing bodies, and hopes of finding the missing person alive were thin. “Can a human being be underwater for two days?” Mr. Cari asked.

What was certain was that Mr. Lynch’s death was yet another cruel twist of fate for a man who had spent years seeking to clear his name.

He earned a fortune in technology and was nicknamed Britain’s Bill Gates. But for more than a decade, he had been treated as anything but a respected tech leader.

He was accused by Hewlett-Packard, the American technological pioneer that had bought his software company, Autonomy, for $11 billion, of misleading it about his company’s worth. (Hewlett-Packard wrote down the value of the transaction by about $8.8 billion, and critics called it one of the worst deals of all time .) He had been increasingly shunned by the British establishment that he sought to break into after growing up working-class outside London.

He was extradited to San Francisco to face criminal charges, and confined to house arrest and 24-hour surveillance on his dime. In a townhouse in the Pacific Heights neighborhood — with security people he jokingly told associates were his “roommates” — he spent his mornings talking with researchers whom he funded personally on new applications for artificial intelligence. Afterward, he devoted hours to discussing legal strategy with his team.

Despite his persistent claims of innocence, even those close to Mr. Lynch had believed his odds of victory were slim. Autonomy’s chief financial officer, Sushovan Hussain, was convicted in 2018 of similar fraud charges and spent five years in prison.

During Mr. Lynch’s house arrest, his brother and mother died. His wife, Angela Bacares, frequently flew over from England, and she became a constant presence in the San Francisco courtroom during the trial.

After he was finally acquitted, Mr. Lynch had his eye on the future. “I am looking forward to returning to the U.K. and getting back to what I love most: my family and innovating in my field,” he said.

Elisabetta Povoledo contributed reporting from Pallanza, Italy.

Emma Bubola is a Times reporter based in Rome. More about Emma Bubola

Michael J. de la Merced has covered global business and finance news for The Times since 2006. More about Michael J. de la Merced

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How sinking of luxury yacht off Sicily unfolded

One man has died and six people are missing after a luxury yacht sank in freak weather conditions off the coast of Sicily.

The 56m British-flagged Bayesian was carrying 22 people - 12 passengers and 10 crew - when a heavy storm that created waterspouts struck early on Monday.

Fifteen people were rescued and a search operation for those unaccounted for - who include the British tech tycoon Mike Lynch - is continuing.

Here is what we know about the tragedy so far and how it unfolded.

What happened to the yacht?

The Bayesian was struck by a sudden and powerful storm in the early hours of Monday morning, witnesses say.

It was reportedly anchored to the sea bed outside the harbour at Porticello, a small fishing village to the east of Palermo, when what the Italian coastguard described as a "violent storm" hit.

The storm was so fierce that it caused waterspouts, or rotating columns of air and mist, to appear over the sea.

The vessel disappeared beneath the water at about 05:00 local time (04:00 BST).

A doctor treating survivors said the ship "capsized within a few minutes".

• Follow live updates here
• 'For two seconds I lost my baby in the sea' - yacht survivor
• Who are the missing and rescued?
• What might have caused yacht to sink
• Divers battle 10-minute dive window and debris in yacht search

Witnesses told Italian news agency Ansa that the Bayesian’s anchor was down when the storm struck, causing the 72m (236ft) aluminium mast to break in half and the ship to lose its balance and sink.

However, divers on the search and rescue team have said the ship was "practically intact" on the seabed, raising questions as to whether the mast was broken.

The ship's unusually tall mast may have contributed to its sinking, according to Matthew Schanck, chair of the Maritime Search and Rescue Council.

He told BBC Radio 4's Today programme that the mast acted almost like a sail in the strong wind "especially with it being so high".

The extreme winds could have caught the mast and pushed the yacht over, he said.

Karsten Borner, captain of a nearby boat, said after the storm had passed, the crew noticed the yacht that had been behind them had disappeared.

"We saw a red flare, so my first mate and I went to the position, and we found this life raft drifting," he told Reuters.

His crew took on board some survivors, including three who were seriously injured.

Another witness, Fabio Cefalù, captain of a trawler, said he was about to go out on a fishing trip when he saw flashes of lightning so he stayed in the harbour.

"At about 04:15 we saw a flare in the sea," he said, according to the EVN news agency reports.

"We waited for this waterspout to pass. After 10 minutes we went out to the sea and we saw cushions and all the rest of the boat [that had sunk], and everything which was on the deck, at sea. However, we did not see any people in the sea.”

Another fisherman described seeing the yacht sinking "with my own eyes".

Speaking to the newspaper Giornale di Sicilia, the witness said he was at home when the tornado hit.

"Then I saw the boat, it had only one mast, it was very big," he said.

Shortly afterwards he went down to the Santa Nicolicchia bay in Porticello to get a better look at what was happening.

He added: "The boat was still floating, then all of a sudden it disappeared. I saw it sinking with my own eyes."

One of the survivors, British tourist Charlotte Golunski, told Italian newspaper La Repubblica how she held up her one-year-old daughter Sofia to stop her from drowning.

She said the two of them and her partner James survived only because they were up on deck when the yacht sank.

They were woken by “thunder, lightning and waves that made our boat dance”, and it felt like "the end of the world" before they were thrown into the water.

Charlotte said: "For two seconds I lost my daughter in the sea, then quickly hugged her amid the fury of the waves."

She added: "I held her afloat with all my strength, my arms stretched upwards to keep her from drowning.

"It was all dark. In the water I couldn't keep my eyes open. I screamed for help, but all I could hear around me was the screams of others."

What is the latest with the search?

Six passengers remain missing and the Palermo coastguard says the search and rescue operation is continuing "incessantly".

The search began on Monday and specialist divers have been working at the site since early on Tuesday morning.

One diver told Italian media the yacht was "practically intact" on its side at the ocean's basin, about 50m below the surface.

The ship's hull is obstructed with furniture and various objects, the Italian fire and rescue service has said.

Divers are looking for ways to access the yacht's cabins, but they have just 10 minutes to search on each dive before they need to return to the surface, the Italian news agency Ansa has reported.

A 1cm thick glass window is also being considered as an entry point.

Francesco Venuto, a spokesperson for Sicily's civil protection agency, told the BBC on Monday rescue teams fear the bodies of those missing "must be" in the boat.

"We've been searching all day with helicopters and boats, we've found nothing. That wouldn't make sense. In these conditions, we should have found something by now," he added.

A specialist caving search and rescue diving team arrived from Rome on Monday, hoping to "achieve results" either during the night or by Tuesday morning at the latest, the director general of Sicily's civil protection agency, Salvatore Cocina, said.

On Monday, the UK's Marine Accident Investigation Branch sent a team of four investigators to carry out a preliminary assessment of the Bayesian's sinking, the BBC understands.

Who was on board?

There were 22 people on board when the storm hit, including 12 passengers and 10 crew.

The body of one man has been recovered. He has not been formally identified, but the Palermo coastguard said he was the ship's cook. His nationality has not been confirmed.

Among the six people still missing is 59-year-old tech entrepreneur Mike Lynch, known by some as the "British Bill Gates".

Mr Lynch founded software giant Autonomy in 1996 and was awarded an OBE for services to enterprise in 2006.

In June, he was cleared of conducting a massive fraud relating to an $11bn (£8.64bn) sale to US company Hewlett Packard.

Afterwards, he told the BBC in an interview he had been able to prove his innocence only because he had the wealth to pay the enormous legal fees required.

The other missing people include Mr Lynch's 18-year-old daughter Hannah, Morgan Stanley International bank chairman Jonathan Bloomer, and Clifford Chance lawyer Chris Morvillo.

Mr Lynch's wife Angela Bacares is among the 15 people to have been rescued, with eight of those receiving treatment in hospital, the Italian coastguard said.

Charlotte Golunski, her husband and daughter Sofia were also rescued and were unharmed, but taken to hospital for check-ups.

She said they had been on the yacht with a group of colleagues.

The daily Il Giornale di Sicilia newspaper reported the vessel had mostly British passengers on board, but also people from New Zealand, Sri Lanka, Ireland and British-French citizens.

A doctor based in Palermo said the "very tired" survivors were "constantly asking about the missing people".

Dr Domenico Cipolla told Reuters that one woman he treated described the trip as a "corporate holiday", with some of those on board "very young".

"There were a lot of work colleagues, friends, a few husbands, wives, or a couple of friends who had joined in," he adds.

What is a waterspout and why do they form?

A waterspout is similar to a tornado and can form over oceans, seas or large lakes.

The western half of the Mediterranean has experienced severe storms since the middle of last week.

Through Sunday night and into Monday morning, a zone of bad weather passed by the north coast of Sicily.

BBC Weather forecaster Matt Taylor said: "A waterspout is a tornado that has occurred over water rather than land.

"They can form during intense storms, on the base of cumulonimbus/thunder clouds.

"Turbulence, and the wind blowing in slightly different directions around the cloud, can cause rotation under the base of the cloud and the spout to form.

"Like tornadoes, they bring powerful winds, but instead of picking up dust and debris they cause a water mist around the column of rotating air."

What is the Bayesian, and who owns it?

The superyacht can accommodate up to 12 guests in six suites, and is listed for rent for up to €195,000 (£166,000) a week.

It was built in 2008 by Italian company Perini Navi.

The Bayesian's registered owner is listed as Revtom Ltd, which is based on the Isle of Man.

The yacht's name is understood to derive from the Bayesian theory, which Mr Lynch's PhD thesis and the software that made his fortune was based on.

Mr Lynch's wife Ms Bacares is named as the sole legal owner of Revtom, which is registered in the Isle of Man.

The Bayesian completed a number of sailings in recent days, calling at various ports in Sicily, according to ship-tracking website VesselFinder.

A spokesperson for Camper and Nicholsons International, the firm that manages the 2008-built boat, told BBC Verify: "Our priority is assisting with the ongoing search and providing all necessary support to the rescued passengers and crew."

'Indescribable' crew errors led to Sicily shipwreck, yacht maker says

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Who was onboard tech mogul Mike Lynch's Bayesian yacht?

Topic: Disasters, Accidents and Emergency Incidents

Six people are missing, including a man dubbed the British Bill Gates, after a luxury yacht sank off the Sicilian coast.

British tech entrepreneur Mike Lynch — freshly acquitted from a decade-long trial — had invited his work colleagues aboard a trip through the Mediterranean coast when a freak storm saw the yacht sink within moments.

Fifteen people escaped from the sinking vessel. The search for the missing continues.

Here's what we know so far: 

What happened?

The Italian coastguard said the yacht — the Bayesian — was anchored off the shore of port city Porticello, near the Sicilian capital Palermo, when it was hit by bad weather sometime after 4am on Monday, local time. 

Eyewitnesses said it vanished quickly beneath the waves shortly before dawn.

Managers of the sailing vessel Bayesian, Camper & Nicholsons, confirmed to the ABC that the Bayesian encountered severe weather and subsequently sank. 

"Our priority is assisting with the ongoing search and providing all necessary support to the rescued passengers and crew," they said. 

"The wind was very strong. Bad weather was expected, but not of this magnitude," a coastguard official told Reuters.

Sicily's civil protection agency head, Salvo Cocina, said a waterspout — a tornado over the water — could have struck the yacht.

"They were in the wrong place at the wrong time," Mr Cocina added. 

Storms and heavy rainfall had swept down Italy in recent days after weeks of scorching heat, lifting the temperature of the Mediterranean Sea to record levels and raising the risk of extreme weather conditions, experts told Reuters.

"The sea surface temperature around Sicily was around 30 degrees Celsius, which is almost 3 degrees more than normal. This creates an enormous source of energy that contributes to these storms," meteorologist Luca Mercalli said.

Rescuers recover the body of one of the people aboard the Bayesian.  ( AP: Lucio Ganci )

Captain Karsten Borner of the Sir Robert Baden Powell vessel told journalists he noticed the Bayesian nearby during the storm, but after it calmed he saw a red flare and realised the ship had simply disappeared.

Mr Borner said he and a crew member boarded their tender and found a lifeboat with 15 people, some of them injured, who they then took aboard and alerted the coast guard.

Search crews, including helicopters and divers, are continuing to search the wreckage, lying at a depth of 49 metres.

Specialist divers reached the ship on Monday but access was limited due to objects in the way, the fire brigade said.

The UK Marine Accident Investigation Branch is deploying a team of four inspectors to Italy to conduct a preliminary assessment.

The Foreign Commonwealth and Development office said it was "providing consular support to a number of British nationals and their families".

Sicilian prosecutors have also opened an investigation into the event. 

Who is missing?

Lawyer Chris Morvillo (left), entrepreneur Mike Lynch, and Morgan Stanley chairman Jonathan Bloomer are among the missing. 

There were 12 passengers and 10 crew members aboard the yacht. 

Mr Cocina said the crew and passengers hailed from a variety of countries, including Britain, the United States, Antigua, France, Germany, Ireland, Myanmar, the Netherlands, New Zealand and Spain.

Of the 22, one man is confirmed dead and another six people are still missing. 

They are believed to be inside the hull, fire rescue spokesperson Luca Cari said.

Fabio Cefalù, a fisherman who said he responded to a flare from the vessel but found it sunk, said he stayed at the site for three hours without finding anyone.

"I think they are inside, all the missing people," he said.

Rescue teams recovered the body of the yacht's onboard chef on Monday, identified as Antiguan citizen Ricardo Thomas.

The still missing people include: 

• Mr Lynch's 18-year-old daughter, Hannah 
• Jonathan Bloomer, chairman of global financial services company Morgan Stanley International
• Chris Morvillo , a lawyer at the British multinational law firm Clifford Chance. He worked on Mr Lynch's lawsuit against Hewlett-Packard
• The identities of the remaining two missing are still unconfirmed

Who was rescued? 

Fifteen people escaped from the sinking ship. 

Eight have been hospitalised and others were taken to a nearby hotel.

Charlotte Golunski was among those rescued, recalling the harrowing moments she held her child Sofia above the waves.  ( Supplied: Facebook  )

Among those rescued were:

• Mr Lynch's wife, Angela Bacares, who was the owner of the yacht
• Charlotte Golunski and her one-year-old daughter, Sofia. Ms Golunski is a partner at Mr Lynch's firm, Invoke Capital. She says she momentarily lost hold of Sofia in the water but managed to hold her up above the waves until the lifeboat was inflated
• Ms Golunski's husband James Emslie
• New Zealand captain of the yacht James Catfield. He told Italian newspaper La Repubblica the crew didn't see the storm coming
• A lone Dutch citizen was identified by the Dutch foreign ministry as being rescued, but was not identified

Who is Mike Lynch?

Mr Lynch, once hailed as Britain’s king of technology, was recently freed from a Silicon Valley lawsuit that tarnished his legacy. 

The 59-year-old Cambridge-educated mathematician created Autonomy , a search engine that could pore through emails and other internal business documents to help companies find vital information more quickly. 

He received the OBE for his innovation in 2006. 

He then sold the software to Hewlett-Packard (HP) for $US11 billion ($16 billion) in 2011, with Mr Lynch personally netting $US800 million. 

HP valued Autonomy at $US46 billion ($68 billion) in the months leading up to the deal.

Mike Lynch in 2019 leaving the High Court in London.  ( Reuters: Henry Nicholls/File Photo )

But the deal quickly turned sour after he was accused of forging the software's financial records to make the sale.

As part of a decades-long legal battle against HP, Mr Lynch was extradited to the UK on criminal fraud charges. 

He steadfastly denied any wrongdoing, asserting that he was being made a scapegoat for HP's own bungling. 

He was eventually cleared of all charges in June this year. 

Although he avoided a possible prison sentence, Lynch still faced a bill from a civil case in London that HP mostly won during 2022. Damages haven't been determined in that case, but HP is seeking $US4 billion. 

Following the San Francisco trial, Mr Lynch said he would return to the UK and do what he loved most: "[being with] my family and innovating in my field."

The holiday appeared to be something of a celebration after Mr Lynch's acquittal, with guests including some of the people who had stood by Lynch throughout the ordeal.

This picture shows the rescue operations off the Sicilian coast.  ( AP: Italian Coast Guard  )

In a separate act of tragedy, Mr Lynch's co-defendant in the trial, Stephen Chamberlain, died on Monday, after a road accident left him critically injured.

Mr Chamberlain — Autonomy's former vice-president of finance alongside Mr Lynch — was hit by a car in Cambridgeshire on Saturday morning and had been placed on life support. 

What is the Bayesian?

The luxury yacht is 56m long sailboat, with a 75m mast labelled as the tallest aluminium mast in the world.

It was previously named Salute when it flew under a Dutch flag.

The yacht, built in 2008 by the Italian firm Perini Navi, can accommodate up to 12 guests in six suites and a crew of 10, according to online specialist yacht sites. It was last refitted in 2020.

Online charter sites listed it for rent for up to 195,000 euros (about $AU 321,000) a week. 

This picture taken on Sunday shows the Bayesian (left) and the Duch sailboat Sir Robert Baden Powell anchored off the coast line.   ( AP: Fabio La Bianca/Baia Santa Nicolicchia )

The ship also won a string of awards for its design. 

Ms Golunski said the yacht had travelled through the Aeolian Islands, Milazzo and Cefalù before sinking. 

It is likely the yacht's name would resonate with Mr Lynch because his PhD thesis and the software that made his fortune was based on Bayesian theory.