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Our Bluewater yacht brokers have years of yachting expertise in the marine industry with in-depth knowledge of yacht sales, long standing relationships with shipyards and marinas and yacht crew alike.

Whether you want to purchase your first yacht, upgrade or sell your current vessel, our aim is to find your perfect yacht or the ideal buyer.

Bluewater’s expert brokerage services put buyers and sellers first, ensuring you are at the forefront of the fast-moving yacht sales market.

Bluewater prides itself on exceptional sales advice, market intelligence and sourcing the right yacht at the right price. No matter where you are based, you can benefit from listing or purchasing your yacht with our yacht brokers who are leading worldwide yacht sale experts in major yachting destinations such as the Caribbean, Fort Lauderdale and the Mediterranean.

We’re passionate about yachting and helping our clients by offering a full service and unrivalled support from start to finish – our commitment is defined as ‘One Company, One Complete Service’ with listings for a large selection of yacht brands such as Azimut, Benetti, Sunseeker and Princess Yachts, as well as departments dedicated to yacht charter, yacht management, yacht crew placement and crew training, to ensure we can cater for all of your yachting requirements.

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• €135,000,000

• €130,000,000

Endless Summer

• €2,950,000

Moonraker II

• €990,000

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• €5,500,000

• €39,900,000

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• €27,900,000

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• €1,850,000

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• €3,200,000

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Mega & Superyachts for Sale

944 Superyachts for Sale Worldwide

Northrop & Johnson is proud to offer an extensive, global and all-encompassing selection of superyachts for sale. The superyacht sector comprises the world’s most luxurious, well-designed, top-performing yachts with a wide range of amenities and styles. We hope you find your dream yacht below. When you do, please contact a Northrop & Johnson sales broker to begin the buying process.

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Which Superyacht is Right for You?

The type of superyachts best suited for you depends on the on-water experience you want. You may want power and speed, ensuring a motor-powered superyacht is right for you. Alternatively, you may want to feel the wind pushing you across the water, so a sailing yacht is best suited for your needs. In either respect, the most popular superyachts feature incredible amenities, top performance and exceptional design that allows them to retain their value for resale or charter.

When choosing the ideal superyacht, you – with the help of your broker – will weigh various options and features, including style, type of yacht, build pedigree, crew layout, facilities, décor and more. Whether you are looking for a large, modern motor yacht or a classically styled gentlemen’s yacht, Northrop & Johnson has a wide selection of superyacht types available for sale.

When buying or building a yacht, remember: first and foremost, your yacht is for you and your family or friends to use. What type of experience and use are you looking for in your ownership? Are you interested in a new or used yacht? Custom built or semi-custom? How are you planning to use your yacht? If you are planning to charter your yacht to help offset some of the running costs, then factor in the charterer, but remember, a yacht is very personal and you must consider your own needs as a priority.

Types of Superyachts

What type of boat best suits your needs

The type of yacht will shape the experience for the owner. The most popular superyachts (be they sail or motor) have a combination of elements that make them strong across the board both during ownership and in resale value and charter success. From the style and type of yacht and the build pedigree to the crew layout, the facilities and even the décor, there are many factors that, when combined, influence the enjoyment of yacht ownership. Whether you are looking for a large, modern motor yacht or a classically styled gentlemen’s yacht, Northrop & Johnson has a wide selection of superyacht types available for sale. When buying or building a yacht, remember that first and foremost your yacht is for you and your family or friends to use. What type of experience and use are you looking for in your ownership? Are you interested in a new or used yacht? Custom built or semi-custom? How are you planning to use your yacht? If you are planning to charter your yacht to help offset some of the running costs then factor in the charterer, but remember, a yacht is very personal and it is important that you think of your own needs as a priority.

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USD 59,990,000

• Length: 60m (196.9ft)
• 12 guests in 6 cabins
• Built: 2009 (refitted 2017), Lurssen-Werft, Germany

EUR 14,950,000† (EU VAT paid)

• Length: 58.2m (190.9ft)
• Built: 2005, Proteksan Turquoise, Turkey

MESERRET II

EUR 9,000,000

• Length: 57.2m (187.7ft)
• 16 guests in 9 cabins
• Built: 1978 (refitted 2021), Cammenga Jachtbouw, The Netherlands

EUR 29,500,000

• Length: 56.4m (185.1ft)
• 11 guests in 5 cabins
• Built: 2014 (refitted 2019), Alloy Yachts, New Zealand

EUR 39,950,000

• Length: 55.8m (183ft)
• 10 guests in 5 cabins
• Built: 2021, Codecasa, Italy

USD 27,500,000†

• Length: 55.5m (182.1ft)
• Built: 2005 (refitted 2021), Feadship, De Vries, The Netherlands

PROJECT 515

Price on application

• Length: 54.9m (180.1ft)
• 14 guests in 6 cabins
• Built: 2026, Burger, United States Of America

USD 9,950,000†

• Length: 52m (170.6ft)
• Built: 1988, Feadship, De Vries, The Netherlands

USD 26,800,000†

• Length: 51.8m (170ft)
• 13 guests in 7 cabins
• Built: 2003, Feadship, Royal Van Lent, The Netherlands

EUR 12,800,000

• Length: 49.9m (163.7ft)
• 9 guests in 4 cabins
• Built: 2012 (refitted 2019), Overmarine, Italy

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How Much Does a Yacht Cost: A Comprehensive Breakdown for Buyers

Yachts embody luxury, status, and freedom, leading many to wonder about the costs associated with such an extravagant purchase.

Buying a yacht is a significant investment that involves not only the initial price but also ongoing expenses such as maintenance, fuel, insurance, and crew costs.

The price of a yacht varies greatly depending on factors such as size, brand, age, and features. Understanding these factors will help potential buyers make informed decisions.

Smaller yachts often start at a few hundred thousand dollars , while larger or more luxurious models may cost millions. Meanwhile, superyachts and mega yachts can carry price tags in the tens or hundreds of millions of dollars.

It is important to remember that additional ownership costs, like annual operating expenses , must be considered when calculating the true cost of yacht ownership.

Key Takeaways

• Yacht costs vary greatly based on size, brand, age, and features
• Additional expenses such as maintenance, insurance, and crew should be factored in
• Assessing all costs involved helps gain a clearer picture of the true cost of yacht ownership

Types and Sizes of Yachts

When considering the cost of a yacht, it's important to understand the various types and sizes available in the market.

In this section, we will explore some of the main categories of yachts, including sailing yachts vs. motor yachts and the range of sizes from small to superyachts.

Sailing Yacht Vs. Motor Yacht

There are two main types of yachts: sailing yachts and motor yachts.

Sailing yachts rely on wind power and sails for propulsion, making them more eco-friendly and fuel-efficient. They come in a variety of sizes and styles, with smaller sailboats starting around 23 feet in length. Some popular designs include sloops, cutters, and ketches.

Meanwhile, motor yachts use engines for propulsion, offering more speed, power, and maneuverability. These yachts typically range from around 30 to 100 feet, although larger motor yachts can also be classified as superyachts. Motor yachts are often equipped with a luxurious interior, offering the utmost comfort and entertainment for guests.

Small Yachts to Superyachts

Small Yachts (10,000-$100,000):

Small yachts generally range from 23 to 40 feet in length. These yachts are more affordable and easier to maintain, making them attractive to first-time buyers. They can be both sailing yachts and small motor yachts. Examples of small yachts include sportfishing boats, family cruisers, and day sailers.

Midsize Yachts ($100,000-$1,000,000):

Midsize yachts typically range from 40 to 60 feet in length. The price of a midsize yacht can vary greatly, with used models going around $200,000 while new ones can go up to a million dollars. They offer more space, better amenities, and improved performance compared to small yachts. Midsize yachts can also be classified as sailing yachts or motor yachts.

Large Yachts ($1,000,000 and up):

Large yachts typically range from 60 to 100 feet in length. These luxurious vessels come with a higher price tag, often costing multiple millions of dollars. Large yachts offer plenty of space for entertaining, as well as state-of-the-art technology and amenities. They come in both sailing and motor yacht varieties.

Superyachts ($10,000,000 and up):

Superyachts are the pinnacle of luxury and sophistication, typically measuring over 100 feet in length. They feature extravagant amenities, such as helipads, swimming pools, and even movie theaters. The price of a superyacht can be astronomical, at times exceeding $10 million or more.

Cost Factors for New and Used Yachts

When determining the cost of a yacht, whether new or used, several factors come into play. These include the age and condition , size and style, brand and model, and location and availability of the yacht.

Each of these factors plays a significant role in the overall cost, so understanding them can help buyers make an informed decision.

Age and Condition

The age of a yacht naturally impacts its price. A brand-new yacht typically commands a higher price than a used one. However, the condition of a used yacht can also greatly influence its value. A well-maintained, used yacht in excellent condition may be more expensive than a newer model with issues or wear and tear.

Size and Style

The size and style of the yacht also play a crucial role in determining the cost.

Generally, larger yachts come with a higher price tag. For example, the average price of a yacht in the United States for vessels 46 to 55 feet was $467,899, while the average price for yachts in the 56 to 79 foot category was $1.18 million.

The style of the yacht, such as a sailboat, power catamaran, or luxury yacht, can have a significant effect on the price as well.

Brand and Model

The yacht's brand and model also contribute to its price. Some yacht brands are known for their luxury, craftsmanship, and performance, which can lead to a higher cost.

On the other hand, more affordable brands may offer similar amenities and functionality at a more budget-friendly price.

It's essential to research different yacht brands and models to find the one that best suits your preferences and budget.

Location and Availability

The location of the yacht, along with its availability in the market, can influence the overall cost.

In some regions, yacht prices may be higher due to factors such as demand, local taxes, or shipping costs. Additionally, if a specific model is in high demand or limited supply, its price may be elevated due to scarcity.

Initial Purchase Price

Buying New Vs. Pre-Owned

When considering the initial purchase price of a yacht, one of the first decisions a buyer faces is whether to buy a new or pre-owned yacht.

New yachts typically come with the latest technology, design, and customization options, but they also come at a higher price.

On the other hand, pre-owned yachts can be significantly more budget-friendly, but may require more maintenance and lack the latest features.

The average price of a yacht in the United States for vessels 46 to 55 feet was $467,899, while the average price for yachts in the 56 to 79-foot category was $1.18 million. These prices can vary depending on whether the yacht is new or used.

The Buying Process

The process of buying a yacht typically involves researching the market, selecting the right size and type of yacht, identifying suitable yachts, negotiating the price, and completing the purchase.

Working with a professional yacht broker can be beneficial in streamlining this process for the buyer as they can provide expert guidance in selecting the right yacht to fit the buyer's needs and budget.

Costs to Consider

In addition to the initial purchase price, there are various other costs that should be taken into account when buying a yacht. These include:

• Insurance : Buyers should consider the cost of insuring the yacht. Insurance fees, among other factors, are influenced by the size and value of the yacht.
• Marina fees : Docking the yacht at a marina will incur fees, which can range from a few thousand dollars for smaller yachts to tens of thousands for larger ones.
• Maintenance : Maintenance costs can make up around 10% of the initial purchase price. For used yachts, be prepared to spend on essential repairs and upgrades as needed.
• Fuel : The cost of fuel is influenced by the yacht's size, engine type, and cruising frequency.

Operational and Maintenance Costs

Crew Expenses

One of the significant expenses associated with owning a yacht is paying the crew salaries .

The number of crew members and their respective positions will vary depending on the size and complexity of the yacht. For example, a 180-foot superyacht may have an annual crew expense of around $1.4 million.

It is essential to account for additional crew-related costs such as insurance, training, and uniforms.

Fuel and Propulsion

Another considerable aspect of yacht ownership is fuel costs. The amount of fuel consumption will largely depend on the yacht's size, propulsion system, and usage patterns.

For instance, a larger yacht may incur around $400,000 for fuel annually.

It is also worth considering the potential expenses for any necessary upgrades or maintenance of the propulsion systems to ensure optimal performance and efficiency.

Repairs and Upkeep

Maintaining the yacht's appearance and condition requires regular maintenance and repairs . These expenses can quickly add up. Annual maintenance costs for a superyacht could reach up to $1 million.

This includes expenses for cleaning, teak oils, wax, and polish to keep the yacht looking immaculate. It is often recommended to allocate around 10% of the yacht's value to cover annual maintenance costs.

Dockage and Storage

Mooring fees, marina fees, and storage are additional factors to consider when estimating the operational costs of a yacht. Dockage costs typically depend on the yacht’s size and the chosen location.

On average, a superyacht may have an annual dockage expense of around $350,000 .

Additional Ownership Costs

Yacht insurance is a significant cost that should be factored into your decision to buy a yacht. The cost of insurance can vary based on the size, type, and value of the yacht.

For example, a 180-foot superyacht may have insurance costs upwards of $240,000 per year .

Obtaining quotes from various providers is essential. Remember that rates can fluctuate based on factors such as the yacht's condition and the owner's boating experience.

Taxes and Registration

Owning a yacht also comes with local and federal taxes and registration fees. Tax rates can vary depending on the state or country where the boat is registered.

In the United States, some states have a sales tax for yacht purchase, while others have an annual personal property tax. Make sure to research the applicable taxes and registration fees in your area to include them in the overall cost of ownership.

Depreciation

Another factor to consider when purchasing a yacht is depreciation. Over time, the value of most yachts will decrease, much like automobiles.

The rate of depreciation may differ based on the yacht's make, model, and age. To account for this potential decrease in value, make sure to have a proper maintenance plan in place and be prepared for the potential resale-value drop.

Extra Amenities and Upgrades

Finally, extra amenities and upgrades can significantly impact the cost of owning a yacht. Additional features such as upgraded electronics, specialized navigation systems, enhanced entertainment systems, or custom interior finishes can add considerably to the base cost of ownership.

Also, consider ongoing costs associated with these amenities, such as maintenance, repairs, and replacements. Budgeting for these additional expenses is critical to ensure your enjoyment of the yacht without financial strain.

Real Cost of Yacht Ownership

Owning a yacht is a luxury many people dream of, but it comes with significant costs. This section will discuss the real cost of yacht ownership , looking at the rule of thumb for annual costs and investment considerations.

Rule of Thumb for Annual Costs

When estimating the cost of owning a yacht, a general rule of thumb is that annual costs will be around 10% of the initial purchase price. This includes expenses such as maintenance, fuel, insurance, and crew salaries.

For example, a 180-foot superyacht could have an annual budget of $1 million for maintenance, $400,000 for fuel, $240,000 for insurance, and $1.4 million for the crew.

Another example is a 50-foot yacht , which may have ongoing costs between $35,000 and $85,000 per year.

• Maintenance and Repairs: The cost of maintaining a yacht can range from $1,000 to over $1 million per year, depending on the size and complexity of the vessel.
• Dockage: Yacht owners should budget around $350,000 annually for marina fees.
• Fuel: Depending on the size and type of yacht, fuel expenses can be substantial, averaging around $400,000 per year for a large vessel.
• Insurance: Insurance premiums for yachts can range from a few thousand dollars to upwards of $240,000 per year.
• Crew Salaries: Crew salaries can account for the largest portion of yacht ownership costs. A large yacht may require a crew with an annual budget of $1.4 million.

Investment Considerations

When thinking of purchasing a yacht as an investment, potential owners should consider several factors.

Yachts depreciate in value over time, making them a less attractive investment compared to traditional assets such as stocks and real estate.

Additionally, the high cost of ownership may make yacht investment less viable for some individuals.

Keep in mind that while some owners charter their yachts to offset costs, this strategy may not fully cover annual expenses. Moreover, chartering exposes the yacht to additional wear and tear, which can result in higher maintenance costs.

Life on Board

Amenities and Comfort

Life on a yacht offers a unique blend of luxury and comfort. Yachts often come equipped with a variety of amenities to make living on board as enjoyable as possible.

One common feature is the cabin , which provides comfortable sleeping quarters and private spaces for relaxation. Some yacht cabins even have their own ensuite bathrooms for added convenience.

A well-designed galley is essential on a yacht, providing the space and facilities needed to prepare meals and store provisions.

Modern yacht galleys often come equipped with high-quality appliances and ample storage space to ensure a pleasant dining experience.

On larger yachts, additional amenities may include swimming pools , outdoor lounges, and spacious deck areas for sunbathing and relaxation. Some superyachts also feature helipads , allowing for easy access to transport and travel to and from the yacht.

Entertaining and Lifestyle

A yacht is not just a floating home, but also a platform for entertaining and socializing. The deck space on a yacht offers a fantastic setting for outdoor gatherings, while a well-appointed cabin cruiser can serve as an ideal venue for more intimate events.

Entertaining on a yacht often involves a range of activities, from casual get-togethers to formal dinners with friends, family, or business associates.

A key factor in this lifestyle is the yacht's finish – the quality of the materials, furnishings, and décor that contribute to an atmosphere of luxury and sophistication.

With such an array of amenities and entertainment options, life on a yacht combines the best aspects of comfort, luxury, and a captivating lifestyle.

Frequently Asked Questions

What is the price range for a small yacht?

Small yachts can cost anywhere from $100,000 to several hundred thousand dollars, depending on factors such as size, brand, age, and amenities.

On average, a new, small yacht may cost around $200,000, but prices can vary significantly based on the specific yacht .

What are typical rental costs for yachts of various sizes?

Rental costs for yachts can vary greatly depending on factors like size, type, and location.

Typically, smaller yachts can be rented for a few thousand dollars per day, while larger, luxury yachts may command tens of thousands of dollars per day.

Some yachts may also require a minimum rental period and may charge additional fees for things like fuel and crew.

What is the purchasing price for a luxury yacht?

Luxury yachts generally fall within the multi-million-dollar price range, with some costing tens of millions or even hundreds of millions of dollars.

The exact price of a luxury yacht depends on several factors, such as the yacht's features, size, customizations, and brand.

What is the cost associated with owning a 50-foot yacht?

The cost of owning a 50-foot yacht includes the purchase price, maintenance, insurance, docking fees, and fuel costs.

While the purchase price can vary greatly, annual costs can be estimated at approximately 10% of the yacht's value, which may include maintenance, repairs, insurance, docking fees, and other related expenses.

What are the expenses involved in buying a 100-foot yacht?

In addition to the purchase price, which can range from a few million to tens of millions of dollars, owning a 100-foot yacht incurs several ongoing costs.

These expenses include insurance, crew salaries, maintenance, docking fees, fuel, and provisions. It is important to budget for these costs, as they can add up to a significant amount each year.

What can one expect to pay for a 70-foot yacht?

The purchase price of a 70-foot yacht can range from several million dollars to well over $10 million, depending on factors such as age, brand, and features.

In addition to the initial purchase price, there will be ongoing costs such as insurance, maintenance, crew salaries, docking fees, and fuel, which need to be considered when budgeting for yacht ownership.

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Experts puzzle over why Bayesian yacht sank. Was it a 'black swan event'?

The Bayesian set off on a leisurely cruise around Italy's southern coast on a sunny day in late July.

The luxurious super yacht − which boasted one of the largest masts in the world and carried a crew of business moguls, including British tech tycoon Mike Lynch and his family and a chair of Morgan Stanley − set sail from the Amalfi Coast, bound for Sicily.

Less than a month later, the ship had sunk 160 feet under the water , leaving its cook dead and six of its passengers, including at least two Americans, missing and prompting a massive search that has drawn international attention.

Now, experts are trying to piece together why in the early hours Monday the Bayesian was quickly pulled under the waves amid a storm that saw at least one tornado spin up over the water.

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A perfect storm led to Bayesian sinking, experts say

The combination of unlikely factors that could have contributed to the ship's fate constituted a "black swan event," Matthew Schanck, chairman of the Maritime Search and Rescue Council, told USA TODAY.

The Bayesian was well-built: A 2008 product of Italian ship maker Perini, it was constructed in accordance with international maritime standards and commercially certified by the U.K.'s Maritime and Coastguard Agency, according to Schanck.

The bout of bad weather that swept the area when the ship went down was also out of the ordinary in the northern Mediterranean, "which isn't renowned for prolonged, significant stormy weather," he said.

"The fact that those two elements have then resulted in the foundering of a super yacht is pretty extraordinary," Schanck said. "These things don't happen every day."

After the ship sank just before 5 a.m. local time, 15 people, including a 1-year-old, were pulled from the water. Some were rescued from a life raft by the crew of a ship docked nearby.

Ricardo Thomas, the ship's cook and a native of Antigua, was found dead, according to authorities.

As of Tuesday, six people were missing, including Lynch and his 18-year-old daughter. Several missing passengers were involved in Lynch's trial on fraud charges, including Jonathan Bloomer, a Morgan Stanley chair who served as his character witness, and one of Lynch's attorneys. Lynch, accused of fraud after he sold his company to electronics giant Hewlett-Packard, was acquitted of all charges weeks ago.

Who is Mike Lynch? UK entrepreneur among those missing after superyacht sinks off Sicily

Tornado formed over unusually hot water

Storms in the area that night may have whipped up a water spout, a tornado over the water , according to local meteorologists.

It was likely triggered by the water's unusual warmth, said Rick Shema, a certified consulting meteorologist who served in the Navy.

"The water spout was an uncommon occurrence," he said. "But again, these things happen, especially in warmer water."

At 83.7 degrees, water in the area was more than 3 degrees hotter than average on the day the Bayesian sank, likely the result of climate change, Shema said.

"Hurricanes can form at 80 degrees. This was almost four degrees higher than that," he said.

The water spout may have spun up when cooler air dropped from mountainous places nearby onto the hot water, he said. "A water spout is a vortex, basically like a tornado, spinning real fast, sucking up water and moisture as the column rises," he said.

Although water spouts only reach around 120 mph, as compared with tornadoes on land, which can reach up to 300 mph, "you don't need 200 mph to sink a ship," he said.

"Even an average tornado, 120 miles an hour, that's a lot of wind," he said, "which would heel the boat over for sure."

Water spouts spring up suddenly, Shema said. Before they strike, winds can be slow, but "once the water spout comes over, bam, it's on," he said.

Before sunrise, the ship's crew may not have seen the water spout coming. "The visibility was probably a big factor," he said.

With the windows of the yacht opened, as they likely were in the hot weather, the water spout could have triggered water that flooded through the portholes, Shema said, causing the ship to sink.

Tragedy strikes: Scramble to find survivors after Bayesian yacht sinks off Sicily coast

Search continues, but shift to recovery phase approaches

Italian authorities said the Bayesian was probably at anchor when the storm struck, meaning it couldn't maneuver and ride the waves, according to Mitchell Stoller, a captain and maritime expert witness. Other ships in the area that turned on their engines rode out the storm, he said.

"When you're at anchor and you see weather, you start your engine and you put the wind on the bow. You don't let it get on the side," he said.

Schanck said another key question concerns the position of the keel, a heavy weight underneath the boat that acts as a counterbalance to keep it upright, when the ship sank. When lifted, "that's going to affect the stability of the vessel, because, obviously, you've now raised the center of gravity of that vessel," he said.

The Bayesian was floating over 160 feet of water at the time, deep enough that the keel would likely be deployed. But the fact that "the vessel heeled over so heavily makes me question that," Schanck said.

The cause of the disaster may not be known until the ship can be examined in more detail, experts say. Prosecutors in a nearby town have already opened an investigation.

Schanck said investigators will have plenty to work with once the operation moves into a recovery phase.

"The vessel is intact and in good condition on the seabed," he said. "There's a lot of eyewitness accounts from other vessels in the area and the shore."

As the search entered its second day on Tuesday, the rescue effort may shift in that direction soon. "I suspect, later on, today or tomorrow, we'll probably see some mention of a recovery operation being stated," Schanck said.

The decision to would depend on whether rescuers find signs of life in the ship and air pockets or survivable spaces, Schanck said. At this point, survivors on the water's surface looks unlikely. "My professional opinion is that the casualties will be located within the vessel," he said.

"There is a risk versus benefit in all maritime search and rescue incidents," he said. "Where we start transitioning to a recovery phase, that line shifts."

Contributing: Reuters

Cybele Mayes-Osterman is a breaking news reporter for USA Today. Reach her on email at [email protected]. Follow her on X @CybeleMO.

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Questions for Investigators Trying to Unravel Mystery of Luxury Yacht’s Sinking

The investigators searching for answers about the shipwreck, leaving seven dead, face questions about extreme weather and possible human error or problems with the yacht itself.

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By Alan Yuhas

More than 180 feet long, with a mast towering about 240 feet and a keel that could be lowered for greater stability, the Bayesian luxury yacht did not, in the eyes of its maker, have the vulnerabilities of a ship that would easily sink.

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

But the $40 million sailing yacht sank within minutes and with fatal results: seven dead, including the British technology billionaire Michael Lynch, his teenage daughter, four of Mr. Lynch’s friends and a member of the crew. Fifteen people, including the captain, escaped on a lifeboat.

Mr. Lynch had invited family, friends and part of his legal team on a cruise in the Mediterranean to celebrate his acquittal in June of fraud charges tied to the sale of his company to the tech giant Hewlett-Packard.

The Italian authorities have opened a manslaughter investigation, searching for answers from the survivors, the manufacturer and the wreck itself. They face a range of questions and possible factors.

An ‘earthquake’ in the sky?

When the Bayesian sank around 4 a.m. on Aug. 19, the waters in its area, about half a mile off the Sicilian port of Porticello, were transformed by an extremely sudden and violent storm, according to fishermen, a captain in the area and meteorologists.

But what kind of storm is still a mystery, compounded by the fact that a sailing schooner anchored nearby did not have its own disaster. Also unclear is whether the crew was aware that the Italian authorities had issued general warnings about bad weather the night before.

Karsten Börner, the captain of the nearby passenger ship, said he’d had to steady his ship during “really violent” winds . During the storm, he said, the Bayesian seemed to disappear behind his ship.

Severe lightning and strong gusts were registered by the Italian Air Force’s Center for Aerospace Meteorology and Climatology, according to Attilio Di Diodato, its director. “It was very intense and brief in duration,” he said.

The yacht, he said, had most likely been hit by a fierce downburst — a blast of powerful wind surging down during a thunderstorm. His agency put out rough-sea warnings the previous evening, alerting sailors about possible storms.

Locals have said the winds “felt like an earthquake.” A fisherman in Porticello said that he had seen a flare go off in the early-morning hours. His brother ventured to the site once the weather had calmed about 20 minutes later, he said, finding only floating cushions.

The Italian authorities have so far declined to say whether investigators had seen any structural damage to the hull or other parts of the ship.

Open hatches or doors?

The boat executive, Mr. Costantino, has argued that the Bayesian was an extremely safe vessel that could list even to 75 degrees without capsizing. His company, the Italian Sea Group, in 2022 bought the yacht’s manufacturer, Perini Navi, which launched the ship in 2008.

Mr. Costantino 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, would be 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.

At a news conference on Saturday, almost a week after the sinking, investigators said the yacht had sunk at an angle , with its stern — where the heavy engine was — having gone down first. The wreck was found lying on its right side at the bottom of a bay, about 165 feet deep.

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

Water pouring into open hatches or doors could have contributed to the sinking, experts say, but that on its own may not account for the speed at which such a large boat vanished underwater.

Asked about the hatches at the news conference, the authorities declined to comment on whether they had been found open at the wreck.

The authorities have also not specified whether the boat had been anchored, whether it was under power at the time or whether its sails had been unfurled.

A retracted keel?

The Bayesian had a keel — the fin-like structure beneath a boat that can help stabilize it — that could be retracted or extended, according to its manufacturer. On some yachts, keels can be raised to let the large vessel dock in shallower water, and extended downward to help keep a boat level.

But like the hatches, the status of the keel alone may not explain why a large ship sank with such precipitous speed. Investigators have not disclosed what divers may have seen at the wreck, aside from saying divers had faced obstacles like furnishings and electrical wiring in tight quarters. Officials want to raise the wreck to better examine it, a process that may take weeks.

Human error?

Ambrogio Cartosio, the prosecutor in charge of the case, said at the news conference that it was “plausible” crimes had been committed, but that investigators had not zeroed in on any potential suspects.

“There could be responsibilities of the captain only,” he said. “There could be responsibilities of the whole crew. There could be responsibilities of the boat makers. Or there could be responsibilities of those who were in charge of surveilling the boat.”

It remains unclear what kind of emergency training or preparation took place before the disaster, or what kind of coordination there was during it. So far, none of the surviving crew members have made a public statement about what happened the night the ship sank.

Prosecutors said they want to ask more questions of the captain and crew, who have been in a Sicilian hotel with other survivors. They said that neither alcohol nor drug tests had been performed on crew members, and that they have been allowed to leave Italy.

Prosecutors also said they were also investigating why the captain, an experienced sailor, left the sinking boat while some passengers were still on board.

Besides possible manslaughter charges, the authorities are investigating the possibility of a negligently caused shipwreck.

The bodies of five passengers were found in one cabin, on the left side of the yacht, the authorities said. The five were most likely trying to flee to the higher side of the boat and were probably sleeping when the boat started to sink, they said.

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.