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The 25 Largest Yachts in the World

The list runs from lürssen's 592-foot 'azzam' to fincantieri 439-foot 'serene,' with a fascinating group of bespoke vessels in between..

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The new arrivals in 2024 knock the mighty 436.4-foot  Al Mirqab   and  Koru , Jeff Bezos’s sailing yacht, off the list. The “smallest” yacht— Serene —measures a whopping 439.3 feet. A raft of behemoths didn’t make it, including Feadship’s 290-foot Project 821 that is launching this year, the largest build from the Dutch shipyard to date.

Two of Lürssen’s 2024 deliveries also fell short, including Project Deep Blue and Project JassJ. That said, the German yard remains top of the leader board with the immoveable 592.6-foot  Azzam . It also claims 13 of the 25 world’s largest yachts, two of which are new entries.

The list is interesting because most were built in the last 15 years, but there are several historical yachts, including  Savarona , launched in 1931, and  El Mahrousa , launched in 1865, that withstand the test of time. Others like  Yas  and  OK are conversions from other types of vessels. The inimitable  A  is a one-of-a-kind, never-to-be-repeated sailing superyacht.

Here are the world’s top 25 yachts by length.

Azzam | 592 feet, 6 inches

Lürssen could never really boast about Azzam after its launch in 2013 because of the owner’s penchant for privacy, though it did describe the interior by Christophe Leoni, which features a 95-foot-long main salon, as “inspired by the Empire style of the early 19th century.” Owner Mubarak Saad al Ahbabi directed a team of designers and engineers who started with the bare concept, worked through the technical challenges of what might be the most complex superyacht ever, and finished with an unusually large vessel that can top the 30-knot mark when operating in “sprint mode”. Its gas turbines, connected to water jets, also give it the ability to operate at high speed in shallow waters. Nauta Yacht’s exterior features a long, sleek forward area, with well-proportioned tiers moving up to the skydeck. It took an impressive six million man-hours—or four years including engineering—to build.  Azzam  accommodates up to 36 guests, and a crew of 80.

Fulk Al Salamah | 538 feet, 1 inch

Little information has been released about the world’s second-longest superyacht, the custom-built Fulk Al Salamah , and it has been shrouded in mystery since it was first announced in 2014. Even the overall length of 538.1 feet has been estimated from AIS data. However, the imposing vessel, built and delivered by Italian builder Mariotti Yachts in their Genoa shipyard in 2016, is believed to be owned by Sultan Haitham bin Tariq of Oman. Last refit in 2021, the yacht has an exterior design by Studio de Jorio, and it is considered by some to resemble more of a support vessel than a superyacht. Nonetheless, aerial photography shows an impressively large helideck, raked masts, and a bathing platform.

Eclipse | 533 feet, 1 inch

The 533.1-foot stately  Eclipse , one of two yachts on this list owned by sanctioned billionaire Roman Abramovich, took five years to design and build. When it left the Blohm+Voss shipyard in Hamburg in 2010, it was the world’s largest yacht. The interior has 17 staterooms and a palatial primary suite, with the capacity to carry 85 crew. Both the interior and exterior are designed by Terence Disdale. A proportional profile is defined by tiered decks that sweep upward and bend ever so slightly at the aft ends. Eclipse  has a 185-foot-long owner’s deck, the capacity to hold three helicopters, a sophisticated stabilization system, six tenders, and an enormous spa, gym and beach club, not to mention one of the largest swimming pools on any superyacht. Hybrid diesel-electric engines are connected to Azipod drives that give Eclipse a top-end speed of 21 knots, with a range of 6,000 nautical miles.

Dubai | 531 feet, 5 inches

Even at 531.5 feet, Dubai ’s all-white Winch-designed exterior belies the dramatic and vibrant interior within. Colorful mosaic floors, a spiraling glass staircase, 70-foot-wide atrium, and bursts of red, blue, and green create a carnival of scene. Originally commissioned for Prince Jefri Bolkiah of Brunei as a joint project between Blohm+Voss and Lürssen . Known as “Panhandle,” the project was halted in 1998 with just a bare hull and skeletal superstructure. The hull was sold to the government of Dubai, and, under the direction of the country’s ruler, Sheikh Mohammed bin Rashid Al Maktoum, work on the 531.5-footer began again, though this time by Platinum Yachts. Dubai delivered in 2006 and is now the sheikh’s royal yacht, with accommodations for 24 guests and quarters for 88 crew. The SOLAS-certified seven-decked yacht has a landing pad for a Black Hawk helicopter, submarine garage, disco and cinema, and can reach a top speed of 26 knots. There’s also a waterfall that cascades from the yacht’s pool, located aft of the main deck. The yacht’s range of 8,500 nm at 25 knots gives it the potential to cruise around the world in record time.

Blue | 518 feet, 3 inches

Lürssen’s newest entry on the list, Blue , which delivered to its Middle Eastern owner in July 2022, may rank at number five out of the world’s largest yachts, but its diesel-electric hybrid propulsion system goes a long way to minimize emissions. The yacht also features an electric Azimuth pod drive that can be used independently or in conjunction with the twin propeller shafts. There is a waste-water treatment system and an advanced exhaust treatment system to help reduce NOx levels, as well as cut down on vibration and noise pollution. Interior and exterior design is by Terence Disdale, Blue is defined in profile by a raked bow with a helipad, an aft deck pool, and twin balconies forward either side of the owner’s full-beam suite. There is a second, smaller helipad aft. The British designer has reportedly penned a feminine and elegant interior, though no images have yet been released.

Dilbar | 511 feet, 8 inches

The 2016 launch of Dilbar gave Lürssen the distinction of not only building the longest yacht ever ( Azzam ), but also the largest in terms of volume. Espen Øino designed the exterior, creating a full-bodied superstructure of long, flowing decks, along with two helicopter pads,two helicopter pads, one of which has a hangar with an H175 helicopter always on standby.  Dilbar  also has an oversized garden and an 82-foot swimming pool that can hold an incredible 6,357-cubic-feet of water and according to Lürssen, is the world’s longest on a yacht. The interior by  Winch Design  is defined by its “rare and exclusive luxury materials,” says the builder, declining to go into detail. Despite  Dilbar ’s volume, the designers did a masterful job making the yacht look relatively svelte. In June 2020, Dilbar returned to Lürssen for a significant refit, where the yacht remains following U.S. sanctions placed on the owner, Russian billionaire Alisher Usmanov, in 2022. The yacht’s value is estimated to be $600 million.

Al Saïd | 508 feet, 5 inches

Another 500-plus-foot yacht from Lürssen, the original Project Sunflower gained its official name of Al Saïd following its launch in 2016. Espen Øino’s exterior is akin to a classic cruise liner, complete with the twin-exhaust stacks in the center of the superstructure. Owned by the Sultan of Oman, the yacht was listed for the sale for the first time in April 2022 for an undisclosed sum, but a buyer has yet to be confirmed. The six-decked  Al Saïd  can carry 154 crew and an estimated 70 guests across 26 suites. Lürssen reports a top speed of 22 knots. The London-based Redman Whiteley Dixon studio designed the interior, which includes a concert hall that can hold a 50-piece orchestra, a private cinema for 50 people; you’ll also find a medical room and dental care on board.

A+ | 483 feet, 1 inch

Very little is known about A+ (formerly Topaz) , which was launched by Lürssen in 2012. Tim Heywood Designs did the exterior, which features helipads on the foredeck and amidships on an upper deck. A lower aft deck includes a swimming pool. The German yard has not released any images of the Terence Disdale interior. Reported to be owned by Manchester City Football Club owner Sheikh Mansour bin Zayed al Nahyan—Emirati royalty and deputy prime minister of the UAE— A+  is equipped with a 40-foot Vikal catamaran beachlander and is powered by six Wärtsilä engines to reach a top speed of 22 knots. It can carry 62 guests and up to 79 crew and was last refit in 2022.

Prince Abdulaziz | 482 feet, 3 inches

The 5,200-tonne Prince Abdulaziz is one of the Saudi Royal family’s yachts, its first owner being King Fahd. Designed by Maierform, the yacht was the longest and tallest in the world at the time of its launch, a title the 482.3-foot  Prince Abdulaziz  held for 22 years until  Dubai  launched in 2006. The late David Nightingale Hicks, known for his use of bright colors, was the interior designer. The lobby is said to be a replica of the Titanic . The yacht is also rumored to be carrying surface-to-air missiles, though that may be an urban legend. Launched by Helsingør Værft in Denmark in 1984, it was last refit in 2023.

OK | 479 feet

Originally built by Japan’s Oshima Shipbuilding in 1982, the semisubmersible heavy lift ship was used for decades by DYT Yacht Transport as float-on yacht carrier. In 2022, the vessel underwent a private conversion at Karmarine shipyard in Turkey, turning it into a luxury, though highly unusual, yacht named OK . Modifications include a matte-black paint job, gold-tinted glazing, and teak decking. The vessel’s 328-foot submersible aft deck—a feature that first attracted her new owner, who uses OK to transport their 150-foot ketch—is now covered in a carpet of artificial grass. A 40-tonne crane allows for the safe and easy launch and retrieval of a vast range of toys, including a seaplane. The interior by Bozca Design is reported to include accommodation for 20 guests, a botanical garden, and a crazy Willy Wonka–inspired glass elevator that operates outside of the yacht’s superstructure.

Opera | 479 feet

Very little is known about Lürssen’s mysterious superyacht Opera , though it’s thought to be a rebuild of Project Sassi, which was destroyed in a fire in 2018 at the German shipyard. Now four feet longer than the first iteration, the superyacht became the 11th largest yacht in the world when it delivered to its patient owner in 2023. Exterior and interior designed by Terence Disdale, Opera has a whopping 66-foot beam and an interior volume exceeding 10,000GT. No interior images have been released yet, though judging by its two swimming pools, one with a lifting floor, and two helipads—one on the bow and one on the upper aft deck—it seems no expense has been spared.

El Mahrousa | 478 feet, 1 inch

El Mahrousa , which means “The Protected” in Arabic, is currently Egypt’s presidential yacht, though the 478.1-footer has a separate history as that country’s royal yacht. The London-based Samuda Brothers began the build in 1863, and it was launched in 1865. The world’s oldest superyacht—and formerly the world’s biggest—was originally built for the Ottoman governor of Egypt, Khedive Ismail, and later carried three Egyptian kings into exile. The yacht was also at the opening of the Suez Canal in 1869. It features external design by the British naval architect Sir Oliver Lang and has had multiple modifications over the years, including a lengthening by 40 feet in 1872 and another 17 feet in 1905. During the second refit, the owners replaced its paddle-wheel engines with turbine-driven propellers. The yacht, in care of the Egyptian Navy, occasionally goes to sea for a day or two. In 2015, it was used to inaugurate the new Suez Canal.

Project Luminance | 475 feet, 7 inches

Delivered in 2024, Project Luminance (the real name is yet to be confirmed) is Lürssen’s newest entry on the list. Exterior designed by Espen Øino, the yacht has a raked bow, a contrasting paint job in a dark blue hull and silver superstructure and a whopping 8,999 gross tons of interior volume. Few details are yet known about the gigayacht owned by Ukrainian mining and financial services mogul Rinat Akhmetov, including the interior by Francois Zuretti, but aerial shots reveal twin helicopter pads—one on the foredeck and another high up aft—a large beach club, and an infinity pool, with a private spa pool area on the foredeck.

A | 468 feet, 5 inches

Undoubtedly one of the most visionary projects ever delivered by German shipyard Nobiskrug, the Philippe Starck-designed A is a wild fantasy of the future. Delivered in 2017, the futuristic look of  sailing yacht  A includes smooth, silver-metallic surfaces and windows that look nearly invisible, a 26-foot draft, three composite masts that bend slightly, and a deck hidden by high bulwarks. The Philippe Starck–design is a wild fantasy yacht of the future. The 468-foot sailing yacht is a technical victory for Nobiskrug , which developed composite fashion plates to create the unusual shapes without compromising any strength or fluidity. It has the tallest freestanding composite masts on any sailing vessel, a diesel-electric propulsion system, and state-of-the-art navigation systems. The boat also reportedly has an underwater viewing platform in the keel. Starck’s traditional interior features dark wood, copper accents, and cozy patterned carpets. The split-deck main salon is divided into zoned seating areas with integrated bookshelves. A remains today the world’s largest sailing yacht six years after its launch, though many argue it is better defined as a sail-assisted yacht.

Nord | 466 feet

Nord was announced in 2015 but didn’t hit the water until its 2020 sea trials in the Baltic Sea. The 466-foot yacht features interior design by Italian studio Nuvolari Lenard and was Lürssen’s first yacht launched from its floating shed at its facility in Vegasack. Boasting top-tier amenities, the yacht includes a sports and diving center on the lower deck, multiple tenders ranging in size up to 50 feet and a large swimming pool. The two helipads support the yacht’s long-range cruising capabilities for autonomous exploration, and a retractable hangar means a helicopter can slide neatly into the superstructure for storage when not in use. A generous 20 staterooms accommodate 36 guests across six decks, while a sleek aft-sloping superstructure gives Nord an individual profile on the water.

Yas | 462 feet, 6 inches

As a converted yacht, Yas is one of the most interesting vessels on this list. The dolphin-like exterior was originally a former Dutch Navy frigate that launched in 1978 and eventually sold to the navy of the United Arab Emirates, where it was renamed Al Emirat . The yacht underwent its dramatic conversion in a facility in Abu Dhabi’s main port, emerging as a gleaming superyacht in 2011, with one of the most interesting profiles on the water. It was eventually delivered four years later. Reportedly owned by Sheikh Hamdan bin Zayed al Nahyan, half-brother of the president of the UAE, Khalifa bin Zayed Al Nahyan, the design by Paris-based Pierrejean Vision is defined by massive glass surfaces. Yas can accommodate 60 guests and 58 crew members. Mated to a steel hull, the superstructure is the largest composite edifice ever built.

Solaris | 459 feet, 3 inches

Owned by Russian businessman Roman Abramovich, the 476-foot  Solaris  was one of the largest yachts to deliver in 2021. Last refit in 2022 at MB92 in Barcelona, the vast, highly private explorer is built by German shipyard Lloyd Werft and features a displacement steel hull with bulbous bow and steel superstructure with teak decks. The eight-deck exterior by Australian designer Marc Newson houses a large helipad, sundeck, spacious beach club aft and 21,527 square feet of glass, the largest panes to ever be built into a yacht. Lloyd Werft also built the Russian billionaire’s previous explorer yacht Luna , which he reportedly sold for $360 million to his close friend Farkhad Akhmedov in 2014.

Ocean Victory | 459 feet, 3 inches

The largest motoryacht ever built in Italy, Fincantieri’s Ocean Victory is owned by Russian billionaire Viktor Rashnikov, who was sanctioned in 2022. The seven-deck exterior by Espen Øino includes two helideck platforms and a hangar belowdecks, as well as exceptional outdoor social areas and a floodable tender dock. Ocean Victory has accommodations for 28 guests as well as quarters for 56 crew. The interior by Alberto Pinto remains a secret, aside from the yacht’s six pools, a 3,300-square-foot spa, and an underwater observation room.

Scheherazade | 459 feet, 3 inches

The 459.3-foot, Lürssen-built Scheherazade (formerly known as Project Lightning) was delivered in June 2020, with exterior design by Espen Øino and interior design by Francois Zuretti. Two helipads, forward and aft, and a large beach club aft are visible from aerial photographs, but aside from the yacht’s reported seven-foot beam, 40 crew and unique drone-crashing system for privacy, further details have not yet been released. The reason may lie with the yacht’s unofficial owner, believed to be Russian president Vladimir Putin. In May 2022, Italian authorities froze Scheherazade in the port of Marina di Carrara following an investigation conducted by Italian financial police who found the ship’s beneficial owner had “significant economic and business ties” to high-ranking Russian government officials, though the results of the investigation to date remain inconclusive.

Al Salamah | 456 feet

When Lürssen launched Al Salamah in 1999, it was the third-largest yacht in the world. Its number 20 ranking shows how much has changed in the last 20 years. Code-named MIPOS, or Mission Possible, the yacht was designed by Terence Disdale . Originally owned by Saudi Arabian Crown Prince Sultan bin Abdulaziz, the yacht was put up for sale for $280 million in in 2013 before it was reportedly given to Bahraini Crown Prince Salman bin Hamad Al Khalifa as a gift. The large imposing exterior is primarily protected space, with an upper deck exposed to the elements. Al Salamah has staterooms for 40 guests, including two owner suites, 11 VIP staterooms, and eight twin cabins. The yacht can carry up to 96 crew and has a top speed of 22 knots. Al Salamah was last refitted in 2009.

Rising Sun | 454 feet, 1 inch

Designed by the original guru of yacht designers, Jon Bannenberg, Rising Sun was built by Lürssen for Oracle CEO Larry Ellison and is currently owned by billionaire David Geffen, who reportedly paid $590 million for the yacht. The yacht comes with a gym, a grand piano, multiple swimming pools, a beauty salon, and a spa with a sauna. Delivered in 2004 and last refit in 2022, the yacht’s exterior is defined by banks of windows across the superstructure. Rising Sun has 86,000 square feet of living space in 82 rooms. It can accommodate 18 guests in nine cabins, with the capacity to carry up to 46 crew. The interior by Seccombe Design includes a gym, cinema, and wine cellar, and the rear cockpit deck was designed as a basketball court. Geffen received global media backlash in 2020 for his “tone deaf” social-media posts that pictured himself on board his yacht during Covid-19 lockdown.

Flying Fox | 446 feet, 2 inches

The 446.2-foot  Flying Fox is arguably the most high-profile yacht on this list, primarily for being the largest yacht available on the charter market. In 2022, it was also singled out as “blocked property” by U.S. authorities in 2022 due to its previous management Imperials Yachts, which was on the US sanctions list. The yacht’s owner, however, Russian billionaire Dmitry Kamenshchik, is not sanctioned, so the yacht was turned over to him and returned to charter in 2024. Key features of the Espen Øino-designed exterior are a curvaceous dove-gray hull and a 3.7-foot swimming pool that runs athwartship on the main aft deck, the largest ever found on board a yacht. A two-decked spa also gives guests access to a cryosauna, hammam, and relaxation room with a fold-down balcony at sea level. Packed to the rafters with the latest amenities, the yacht holds a diving center, a decompression chamber, and two helipads. Flying Fox is PYC compliant and can accommodate 25 guests.

Savarona | 446 feet, 2 inches

Launched in 1931, and by far the largest and fastest private yacht of her day, Savarona was built for American heiress Emily Roebling Cadwalader and is easily identified by its two mustard-colored funnels. The yacht was eventually acquired by Turkey to be the presidential yacht of Kemal Atatürk, founder of modern Turkey. Jane’s Fighting Ships described the yacht in 1949 as “probably the most sumptuously fitted yacht afloat.”  Savarona was later converted to a training ship for the Turkish Navy and, in 1978, destroyed by fire. The yacht laid in tatters for 10 years. A Turkish businessman spent around $45 million refurbishing Savarona , commissioning Donald Starkey for the interior and replacing the original steam-turbine engines with modern Caterpillar diesels. Savarona became Turkey’s official presidential yacht again in 2014, accommodating up to 34 guests in 17 suites and carrying up to 48 crew. Amenities include a swimming pool, a Turkish bath, a 280-foot grand staircase, a movie theater and a library dedicated to Atatürk.

Crescent | 443 feet

Last refit in 2021, Espen Øino’s dark hull and tiered superstructure was one of the most exciting launches of 2018. Called Project Thunder internally at Lürssen, the custom-built yacht features cutouts along the hull sides that allow full ocean views from the saloon on the primary deck, as part of Crescent ’s distinctive curved superstructure. Its most noteworthy feature is the jaw-dropping bank of three-deck-high windows in the center of the yacht. This architectural feature serves as the centerpiece of a very compelling design. The yacht has accommodations for 18 guests in nine staterooms. Little is known about the François Zuretti-designed interior, other than Lürssen describing it as being “traditionally styled.” If it lives up to Crescent ’s brash exterior, the complete yacht promises to be an entirely groundbreaking design. In March 2022, Crescent was detained by Spain as property of Rosneft CEO Igor Sechin, who is sanctioned in connection with Russia’s invasion of Ukraine.

Serene | 439 feet, 3 inches

Serene  is the yacht that launched Fincantieri into the superyacht segment, and what a debut it was. The largest yacht ever launched in Italy when it was delivered in 2011 (surpassed three years later by Ocean Victory ), the Espen Øino seven-deck design features a long, sleek blue hull crowned by a white superstructure. Pascale Reymond of Reymond Langton Design created the 43,056-square-foot interior for a Russian owner, which includes a double height atrium with a piano lounge at the top and a vast open-plan main salon below. Sunken LEDs and bright pink and purple neon lights create a modern party vibe in the social areas, which contrast with the elaborate yet more traditional guest suites. A spiral staircase with intricate metal banisters soars through the heart of the yacht. The open stern area has a winter garden (enclosed glasshouse) that allows dining in all seasons. Serene also has two helipads and a hangar, a big swimming pool, and a tender garage large enough for a submarine.

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How Big Are Yachts? 5 Types Explained (With Numbers)

Yachts can come in a variety of sizes and weights. Before you purchase a yacht, you must know what size yacht you need.

The size and weight of the yacht that you need will depend greatly on what your intended use is for the yacht that you are purchasing.

Table of Contents

Here’s everything you need to know about the weight of yachts:

Here’s an Idea of How Big Yachts Are:

The term “Yachts” refers to a pleasure vessel that is at least 30 feet in length and has some type of cabin with some amenities. The biggest luxury yacht is 590 feet (180 meters) and 13,136 gross tons.

What Do We Mean When We Talk About Weight?

There are two types of weight for a boat, dry weight, and wet weight.

Dry weight is the weight of the boat without any fluids in the tanks. Wet weight is the weight of the boat with the fluids in the tanks.

You can also have a loaded weight, which is the wet weight, including any additional toys or equipment you have stored onboard.

What Do We Mean When We Talk About Length?

There are many different ways to calculate a boat’s length. For this reason, you want to make sure that you have a clear idea of what the length of your boat really is.

The boat’s registered length is generally the maximum overall length, which is the length on deck plus any bowsprit or swim deck.  The length of the boat on the waterline is also an important boat characteristic that you should know.

Due to the shape and construction of the hull, these numbers may differ.

For example, if you have a boat that has a 50-foot deck with no bowsprit, your registered length will be 50 feet.

Some boats are measured using “LOA,” otherwise known as length overall.

Why Is Knowing The Weight And Length Important?

The most important reason to know your boat’s weight and length is for when you choose to shop for trailers or even to determine if your vehicle can haul it.

If you try to tow a boat without an accurate representation of the weight or length, you can ruin your vehicle’s engine and even your towing equipment, not to mention have serious safety issues.

Another reason to know about your vessel’s weight is to know how much you can bring for your trip without packing more than the maximum weight allowed.

It is also important to know your weight and how it can affect your boat, especially when it comes to speed.

Different Types of Boats and Their Average Weight and Length

Below are some different types of boats and their average size and weight, and the factors that go into them.

1. Luxury Yacht

Yachts are normally classified as any watercraft that can be used for pleasure or sport and can range from 30 ft to over 100 ft.

While a yacht can be as small as 30 ft. long, a yacht is often considered a cabin cruiser until it is 39 ft. or more, then it is considered a proper yacht.

A yacht would be considered a large yacht once it’s length is over 79 feet. A yacht is considered a superyacht or megayacht if it is over 115 feet long.

The yacht the holds the record for being the longest yacht is 590 feet long. This yacht is called the “Azzam” and has held onto its title for over 5 years.

Because of the wide variety of sizes, the weight can vary greatly when it comes to yachts, and it is hard to nail down an average.

Some more distinctive differences between yachts include:

• These yachts are single-deck yachts with one living quarter below . They are often sleek and sporty.
• Also known as a sedan bridge or sport bridge yacht. This yacht has an area on top of the superstructure that features a view all the way around the vessel.
• This deck up top can offer a control station or even lounge seating, depending on its size.
• Also known as a pilothouse motor yacht, cockpit motor yacht, or sky lounge. This term can be used for any large recreational vessel that is motor powered.
• Usually, this means a multi-deck vessel similar to a flybridge but instead has a large interior deck.
• Often classified as a mega yacht, which is normally any vessel 80 ft. or more. This vessel is exactly what it sounds like.
• It is a yacht with three levels of enclosed living space.
• A sportfishing yacht is any yacht that is geared towards fishing.
• They often have areas designated to storage for rods, bait, tackle, and even areas to store the day’s catch.

2. Sailboats

Large sailboats are yachts propelled by sails and can be found in lakes, rivers, and even out on the ocean.  Today, they almost all have auxiliary power in the form of an engine.

While the weight and length of a sailboat can drastically vary, the average weight of a sailboat is about 8,800 pounds. This weight does not include added gear, equipment, or fluids.

The weight will vary greatly depending on the length of the sailboat. Sailboat lengths can range between 8 feet to 472 feet.

The 472-foot sailboat also carries three masts that tower at over 91 feet each. This can definitely add more weight than the 8-foot vessel.

Listed below are 6 examples of sailboats and their weights and lengths:

• Catalina 16 LOA: 16 ft. 4 in. Hull Weight: 430 pounds
• Hunter 22 LOA: 21 ft. 4 in. Hull Weight: 3,200 pounds
• C&C 27 LOA: 27 ft. 4 in. Hull Weight: 5,180 pounds
• Erickson 28.5 LOA: 28 ft. 7 in. Hull Weight: 8,500 pounds
• Pearson 39 LOA: 39 ft. 3 in. Hull Weight: 17,000 pounds
• Swan 48 LOA: 47 ft. 11 in. Hull Weight: 36,000 pounds

3. Speed Boats (Cigarette Boats)

Speed boats are sleek and built for achieving high levels of speed.

These boats are not made for watersports and should not be confused with ski boats.

A speed boat’s average weight is slightly less than that of a sailboat at roughly 8,000 pounds.

Some of the factors that determine a speed boat’s weight can include their length, engines, and sleekness.

Listed below are some examples of speedboats and their weights and lengths:

• Cigarette 38 Top Gun LOA: 37 ft. 8 in. Hull Weight: 9,175 pounds
• 32 Thunder Cat LOA: 32 ft. Hull Weight: 5,400 pounds
• M35 LOA: 35 ft. 4 in. Hull Weight: 9,250 pounds

4. Deck Boats or Pontoon Boats

Deck boats and pontoon boats both have large decks and are mostly intended for recreational use.

Pontoon boats have the lowest average weight at 3,100 pounds .

Because they do not have large hulls, they can be lighter and cut across the water easier than boats with larger hulls.

Listed below are some examples of deck boats and their weights and lengths:

• NauticStar 211 Angler (Deckboat) LOA: 20 ft. 9 in. Weight: 2,100 pounds
• Stingray 212SC (Deckboat) LOA: 21 ft. 11 in. Weight: 3,100 pounds
• Hurricane SunDeck 2690 LOA: 26 ft. 4 in. Weight: 4,475 pounds

5. Cabin Cruisers

Cabin cruisers are large boats that are sometimes looked at as mini-yachts.

These boats allow for sleeping accommodations and other luxuries afforded in their cabin space.

Like the sailboat, a cabin cruiser’s weight can vary. However, they do tend to have a smaller range than sailboats.

The average weight of a cabin cruiser is about 8,700 pounds.

One of the major factors in the weight of cabin cruisers is the size of the sleeping accommodations below. Some models of cabin cruisers can even sleep up to 10 people.

Listed below are some examples of cabin cruisers and their weights and lengths:

• Larson 274 Cabrio LOA: 28 ft. Dry Weight: 6,001 pounds
• Rinker 301 Express Cruiser LOA: 32 ft. Dry Weight 7,640 pounds
• Bayliner 285 SB LOA: 28 ft. 9 in. Dry Weight: 8,056 pounds

Picking a Yacht:

Yachts can vary in a wide array of sizes, weights, styles, and even purposes.

You can race them, fish on them, and cruise around at an easy pace.

You can take a day trip or even take personal cruises that last days or weeks.

With ample deck and cabin space that offers activities, sunbathing, kitchens, lounges, and sleeping quarters, a yacht is often the most comfortable way to experience the open water.

To choose a yacht, you will want to know what type of yacht you are looking for and what you want to use it for.

You also want to make sure when picking a yacht; you make sure you keep the weight and length in mind to make sure you have a proper towing vehicle and trailer for your vessel.

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As Far As You Can Sea: World’s Largest Superyachts

Multimillion-dollar mega yachts.

by Emma Treagus Updated on May 22, 2024

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With onboard swimming pools, cinemas, helicopter landing pads, and spas, the world’s largest superyachts have more facilities than your ‘average’ five-star hotel.

Owned by some of the world’s wealthiest people—along with a few anonymous owners who’d prefer to keep their luxury transport a secret—these mega yachts redefine the word “boat” into something indescribably sleek, stylish, and seriously impressive. 

If superyachts are your thing, you’ll want to read on for all the facts and figures on all of the largest yachts in the world.

The 26 largest yachts in the world

Multimillion-dollar mega yachts: Our ranking methodology

A superyacht or mega yacht is typically a motor yacht or sailing yacht with a length of 30 meters (100 feet) or more. For this ranking, we looked at the superyachts and luxury expedition mega yachts that are used privately or made available for charter. We excluded so-called ‘residential superyachts’ (think Njord and The World), which are essentially luxury apartment buildings at sea where people own private residences inside the superyacht rather than the whole yacht. By researching diverse, reliable sources like Wikipedia and the Superyacht Times, we compile a list of the largest yachts in the world.

Curious about other striking superlatives? Check our round-up of the most expensive cars in the world and the most expensive private jets in the world . They are both perfectly good alternatives to owning a yacht. And if you prefer to stay home, we’ve ranked the biggest homes and the most expensive houses in the world to give you some inspiration too.

26. Y721 (aka Koru) | 417 feet—127m

Ever wonder where Jeff Bezos spends his downtime? As of today, we’re predicting it to be on his $500 million superyacht. Y721—nicknamed Koru—is 127m long. And featuring three sky-high slender masts, Koru is said to be the largest sailing yacht in the world . 

With dark exteriors and natural wooden decks, Koru is inspired by another one of Bezos’ yachts—the Black Pearl. The clean lines and classically curved bow speak to an understated elegance despite the yacht’s mammoth size. While a long line of portals indicates at least 9 guest cabins. In light of all the secrecy surrounding Koru, we doubt Bezos will ever charter her out, but we can still dream.

25. Al Mirqab | 436 feet—133m

Adorned with cascading chandeliers and gold accents, Al Mirqab is renowned for its unrivaled interiors. Surrounded by suspended glass artworks, a grand staircase floats throughout the four floors. And inspired by authentic Arabian styles, the magnificent superyacht is reminiscent of a magic carpet ride through the seas . 

Built for the former Prime Minister of Qatar, Peterswerft-Kusch spared no expense in delivering Al Mirqab to an impossibly high standard for luxury. The large swimming pool is a standout feature as it opens up into the sea, creating the ultimate playground for adults. Al Mirqab has a capacity for up to 60 guests and is manned by an equal number of crew. Although you have to be invited by the politician himself as Al Mirqab isn’t available for private charter.

24. Serene | 439 feet—134m

Adeptly named, the magnificent superyacht embodies the serenity of a life at sea. Serene was built in Italy for a Russian owner in 2011. She was leased to Bill Gates for the Summer in 2014 for $5 million per week. 

Designed by Reymond Langton, the 134m mega yacht marries elegant sophistication with state-of-the-art technologies. The seven decks leave ample space for guests to soak in scintillating views. While the underwater viewing room—nicknamed the Nemo room—is a permanent gallery of resplendent sealife. The real-life snow room makes up to four inches of snow. And whilst this may seem odd when your billionaire boss asks for snow—you make it snow.

23. Crescent | 445 feet – 136 m

Yet another Lurssen masterpiece, Crescent pays homage to classic naval designs with traditional architecture and elegant interiors. Formerly named Project Thunder, she was built in Germany and delivered to Igor Sechin in 2018. The Russian oligarch’s superyacht was seized by Spain after sanctions were placed on Russia in 2022. 

Crescent features low bulwarks and full-height windows to maximize the view from the center of the boat. Her distinctive wing station provides unrivaled views for up to 18 guests. But don’t get your hopes up—Crescent is strictly for private use only and isn’t available for charter. 

22. Savarona | 446 feet – 136m

Savarona is the second-largest yacht built by Blohm & Voss and spends most of her time in the Mediterranean. This luxury superyacht is one of the oldest in the market — a perfect fusion of traditional charm and modern facilities. 

Previously named Gunes Dil, Savarona was designed by Cox & Stevens, with interior design carefully handled by Donald Starkey. She’s available to charter on a weekly basis and has been refurbished over the years. Back in the day, her cost price was $4 million, and in 1989, she was chartered by Kahraman Sadikoglu, owner of the Turkish Sadikoglu Group, who spent an estimated $50 million on refurbishing her from top to bottom.

21. Flying Fox | 446 feet – 136m

Flying Fox is known as the most expensive charter yacht in the world , and a week aboard will set you back around $3 million. Chartered by the one and only power couple Beyonce and Jay-Z in 2021, it’s filled to the brim with all of the luxury facilities you could ever possibly want. 

The Flying Fox is rumored to be owned by Jeff Bezos, although that’s a claim that’s never been totally certified. She spends most of her time in the Mediterranean, specifically Cannes, Capri, and Sardinia, although she’s recently visited Norway, too. She can accommodate the largest helicopters on the market, and it reportedly took more than 50 meetings with her owner for interior design to be completed.

20. Rising Sun | 454 feet – 138m

The Rising Sun’s original owner, Larry Ellison, CEO of Oracle Corporation, sold her in 2010 as he considered her too large. Famously used by David Geffen for self-isolation, Rising Sun has also been a popular hang-out spot for celebrities like Oprah Winfrey and Beatrice, the Princess of York. 

She’s a Superyacht with impressive attention to detail like interiors kitted out in teak and onyx and endless features like a full gym, a large wine cellar, a sauna, and a spa. She’s got a full-size basketball court that doubles up as a helicopter landing pad and a private cinema for those long evenings spent at sea.

19. Al Salamah | 457 feet – 139m

Al Salamah is part of the Omani Royal fleet and started her very secretive life in Genoa. Known as the world’s biggest superyacht right up until 2016, she’s a sleek masterpiece of a ship, with a distinctive cream color and beach club design. 

Al Salamah does everything in multiples, from the five galleys onboard (the main galley, a bakery, a crew galley, an owner’s diet galley, and an Arab galley), three hospitals (one for the owner, one for guests, and one for the crew) and 2,000 sqm of floor space. She was put on sale briefly for $280 million USD, before being delisted and instead given as a gift to the Crown Prince of Bahrain. 

18. Solaris | 458 feet – 139m

Everything about Solaris was supposed to be kept a secret when she was being built—a secret that didn’t last long when her huge size was spotted undergoing sea trials in the North Sea. One of this Superyacht’s main attractions is her beach club on the top floor: the perfect spot for relaxation during those long days out at sea. 

That beach club comes complemented with endless other stylish amenities, like a large helipad, sun deck, and a crane to launch tenders, toys, and subs. Interior design is largely unknown, but, if it’s anything as sleek and white as its exteriors, it’s sure to be impressive.

17. Scheherazade | 459 feet – 140m

Two helicopter landing pads, two outdoor Jacuzzis, and two outdoor fire pits: Scheherazade doesn’t hold back with not only the essentials but also the luxuries. Previously named Lightning, “Scheherazade” is mostly associated with a female character in the Middle Eastern folk tales in the series One Thousand and One Nights. 

Not much is known about this superyacht, and even her birth and building process were referred to under a codename: Project Lightning. No one involved in her creation, even Lurssen, has revealed anything about her interiors or her owner. All that’s really known is that she sailed from Germany to Norway initially after completion. 

16. Ocean Victory | 460 feet – 140m

Ocean Victory has traveled all over the world, from Europe to Southeast Asia and back again. Owned by Russian billionaire Viktor Rashnikov, she’s the upgraded vessel to follow his purchase of the 76-meter Ebony Shine. 

She’s one designed with pure luxury in mind, from the six individual swimming pools onboard to the 300-square meter spa area. She’s beautiful both inside and out, with a unique concept designed by Espen Oeino and interior designer Alberto Pinto. The largest superyacht ever built in Italy, Ocean Victory shows some of the finest in the world when it comes to premium quality adventures at sea.

15. Yas | 463 feet – 141m

Yas is known best for its seamless and rather unusual design — one that’s a little different from most superyachts out there. The owner of Yas wanted a yacht that lived up to his own heritage; one with a backbone reminiscent of the navy and with abstract lines throughout. 

He chose an existing boat in Abu Dhabi, which was deconstructed within the region before being shipped off and renovated into the wonder that it is today. The Yas yacht was originally a Dutch navy frigate, which you’d never guess from strolling around onboard today.

14. Nord | 465 feet – 142m

Nord’s distinctive bow design has never been seen before on a yacht. That’s one of the first things you’ll notice about her. The next thing you’ll notice is her unusual design, which verges on battle-esque and has been called “ a warship wearing a tuxedo ” by Dan Lenard of the Italian design studio Nuvolari-Lenard. 

She’s one of the best superyachts out there for fun, with a sports and diving center on the lower deck, a swimming pool higher up, overlooking the ocean, and a fleet of tenders. She was designed for global exploration: a yacht that will calmly cruise her way all across the world.

13. Sailing Yacht A | 469 feet—142.8m

Challenging the status quo and pushing design boundaries, Sailing Yacht A is an enigma. The sail-assisted superyacht was built in Germany and delivered to Russian tycoon Andrey Melnichenko in 2017. However, she was seized by the Italian police force, Guardia di Finanza, in 2022 after sanctions were placed on Russian businessmen following Russia’s invasion of Ukraine. 

Distinguished by soaring rotating carbon fiber masts, Nobiskrug’s hybrid approach to superyachts makes Sailing Yacht A more eco-conscious than other luxury yachts of her size. The u nderwater viewing pod molded into the keel speaks to her unrivaled innovation. And many balconies are enclosed by some of the largest pieces of curved glass ever made. 

12. El Mahrousa | 478 feet – 146m

El Mahrousa had a few different names in her time, ranging from the translated “The Protected” to El Horreya, which in Arabic translates to “Freedom.” It’s not surprising that she’s had more than one name when you take into account her age. As the oldest superyacht in the world, she’s undergone a lot of restoration over time, including multiple lengthenings and faster engines. 

She was renamed back to El Mahrousa in 2000 and gained even more recognition for being the first ship to cross the new Suez Canal extension in 2015. Back in her original days, she was built on the River Thames and took her first trip in 1867.

11. OK | 479 feet—146m

Delivered in Japan in 1982, OK is one of the largest and most unique superyachts in the world. Sprawling over 479 feet, the water giant is engineered to submerge almost seventy percent. This is accredited to the work done by Karmarine Shipyard. While the majority of the vessel was built by Oshima Shipping, it was privately converted to a semi-submersible yacht in Turkey. 

The superlative finishing on OK superyacht was designed by Timur Bozca, winner of the Younger Designer of the Year award in 2015. The blueprint being as many games as possible. The extraordinary vessel has the uncanny ability to hold over seventy toys, including a sailing yacht, a sea plane, tenders, buggies and even a tennis court.

10. Opera | 480 feet—146.4m 

Like many of the most majestic water titans, Opera was delivered by Lurssen in Germany and built for Abu Dhabi royalty. This time, the owner is Sheikh Abdullah bin Zayed Al Nahyan, son of the founder of the United Arab Emirates. And while it may not be quite as astronomical as Lurssen’s previous builds—Azzam, Blue and Dilbar—the streamlined vessel is equally impressive onboard. 

The three-story superyacht proves large enough for a pair of helipads and two swimming pools, amongst many other toys, while simultaneously making room for up to 48 guests and 80 crew members. When it comes to the interior, details are sparse, but we do know that it was designed by Terence Disdale, a London firm renowned for creating bespoke luxury spaces. 

9. Prince Abdulaziz | 482 feet – 147m

The Prince Abdulaziz’s yacht was ordered by King Fahd, who named her after his son Prince Abdul Aziz. Now, she’s owned by his brother, Abdullah. Just one of the yachts owned by the Saudi royal family, she’s spotted frequently throughout Europe, especially in Cannes, where the royal family owns a property. 

She’s been redecorated once — in 2007 — in a project that took 15 months to complete, without even taking into account the rest of the ship’s upkeep. The Prince Abdulaziz is known for its combination of bold colors and fusion of traditional and modern design, thanks to its influence from the late David Hicks.

8. A+ | 483 feet – 147m

What do you do when the name “A” is already taken for your superyacht? Choose the next closest thing: A+. Previously named Topaz, this superyacht was the world’s fourth-largest luxury yacht when she was built, before being stripped of that particular title only a few years later. 

Nevertheless, she’s a seriously impressive superyacht, with endless facilities like a large jacuzzi, double helicopter landing pads, a swimming pool with a swimming platform and underwater lights, as well as a fitness hall, cinema, and a large conference room. She’s also well equipped with water toys, like jet skis, inflatable boats, a catamaran, and even a mini-submarine.

7. Al Said | 508 feet – 155m

Another Superyacht built, shrouded in secrecy, Al-Said was referred to as “Project Sunflower” the entire time she was being created, right up until she was delivered to her owner in 2008. Not much is known about Al Said, from her movements through to her amenities — although she is known to have a huge concert room with space for a full 50-person orchestra. 

Currently, she’s flying the flag of Oman and has spent a lot of time in its surrounding waters. Her interior was styled by British designer design house RWD, with exterior design being credited to Espen Oeino. When she was delivered to the Sultan of Oman, she replaced a previous ship of a smaller size. 

6. Dilbar | 511 feet – 156m

Dilbar, or Project Omar, as it was originally known as, is another superyacht designed with the help of exterior expert Espen Oeino, but with interiors strikingly designed by Andrew Winch. Dilbar is famously known as the world’s largest yacht by gross tonnage (interior volume) but as the fifth-longest superyacht in the world. 

She’s home to a spa pool and beach club, as well as a large private cinema, spacious cabins set high on the main deck, a spacious dining room, and a salon with its own piano. She’s just as classy and beautiful on the inside as she is on the outside.

5. Blue | 527 feet—160.6m

Sunday blues simply cease to exist on one of the world’s most extravagant superyachts. The elegant behemoth was built for member of the ruling family of Abu Dhabi and billionaire, Sheikh Mansour bin Zayed Al Nahyan in 2022. Valued at over $600 million, Blue is one of the most expensive superyachts in the world. And with a strong emphasis on the environment, this superyacht is also one of the most sustainable. 

Blue strives to be as environmentally friendly as possible. She is equipped with a highly efficient Diesel-Electric Hybrid Propulsion Concept developed by Lürssen’s own engineering specialists. And the wastewater treatment plant allows water to be disposed of in drinking water quality.

4. Dubai | 531 feet – 162m

Dubai had multiple names in the planning stages—including Panhandle, Platinum, and Golden Star. Owned by the ruler of Dubai, it was aptly named after its home country and comes with all of the luxurious amenities you’d expect from such a name. 

The Dubai comes complete with a huge swimming pool and two jacuzzis. Further down, you’ll find a large dining room with striking blue and burgundy decor and space for up to 90 guests. Dubai usually spends her time moored at Sheikh Mohammed’s private island in front of his summer palace in Dubai. She’s basically the definition of a floating palace.

3. Eclipse | 533 feet – 162.5m

It took around five years for Eclipse to be built from start to finish. While she was always designed to be a huge, luxurious Superyacht, the focus was more on decking it out appropriately rather than breaking any records. An award-winning superyacht, she’s incredibly spacious, with endless rooms to explore and a sleek, neutral color palette running through. 

The Eclipse’s owner, Roman Abramovich, was more focused on facilities: he wanted more than one helicopter pad and a large swimming pool, too. Other than that, designer Terry Disdale had free reign for the rest of the superyacht. It’s just as much a clean piece of architectural styling as it is a stunning experience on deck.

2. Fulk Al Salamah | 538 feet – 164m

Fulk Al Salamah translates to “Ship of Peace” and that’s something that sounds like a given when you’ve taken a look at this superyacht’s incredible layout. Developed under the codename Project Saffron, Fulk Al Salamah is more of a support vessel than she is a typical superyacht. 

While she might still come complete with all of the necessities for a particularly relaxing voyage, she’s more so known for being a transport ship for the Royal Navy of Oman. She’s also used as a sort of friendship boat — pun intended — and is often sailed across the world with the intention of strengthening ties with the Sultanate. In some ports, influential people are welcomed onboard.

1. Azzam | 590 feet – 181m

Most superyachts in the top 10 category have a few mere inches between sizes, but the Azzam shoots far ahead with a large amount of extra length. The largest superyacht in the world, she was never designed to win the title — rather just to be a sleek and elegant vessel. Azzam was crafted backward, with the plans for her interior confirmed long before her exterior was fully signed off. 

Her length only came to be as such to incorporate everything required for the interiors, which added an extra 35 meters to her overall size. She’s also designed to look smaller than she actually is, with a blend of indoor and outdoor living. It took more than 4,000 people to build Azzam , clocking up six million man-hours over a period of four years.

The largest yachts in the world: Conclusion

The largest yachts in the world are:

• Azzam—590 feet
• Fulk Al Salamah—538 feet
• Eclipse—533 feet
• Dubai—531 feet
• Blue—527 feet
• Dilbar—511 feet
• Al Said —508 feet
• A+—483 feet
• Prince Abdulaziz—482 feet
• Opera—480 feet
• OK—479 feet
• El Mahrousa—478 feet
• Sailing Yacht A—469 feet
• Nord—465 feet
• Yas—463 feet
• Ocean Victory—460 feet
• Scheherazade —459 feet
• Solaris—458 feet
• Al Salamah—457 feet
• Rising Sun—454 feet
• Flying Fox—446 feet
• Savarona—446 feet
• Crescent—445 feet
• Serene —439 feet
• Al Mirqab—436 feet
• Y721 (aka Koru)—417 feet

The most expensive yacht in the world

The fact that the History Supreme, the world’s most expensive superyacht, comes coated in gold, is only part of the reason for its high cost. A superyacht with a real-life Midas touch, it was sold to an anonymous Malaysian businessman for $4.8 billion. 

Robert Kuok, the richest Malaysian businessman, is the rumored owner of History Supreme, but no one has confirmed for sure. The History Supreme also comes with plenty of other impressive touches: a master bedroom decked out in platinum, a wall feature made from meteoric stone, and a genuine T-Rex dinosaur bone, to add to the list. 

She took three years to build from scratch and comes with 10,000 kilograms of solid gold and platinum. Other seriously luxe features are her 68 kilograms 24-carat gold Aquavista Panoramic Wall Aquarium and a liquor bottle adorned with a rare 18.5-carat diamond . The base of the vessel comes wrapped in gold, too.

Frequently asked questions about the world’s largest yachts

The largest yachts in the world are owned by Sheikh Khalifa bin Zayed Al Nahyan, Sultan Haitham bin Tariq, Roman Abramovich, Sheikh Mohammed bin Rashid Al Maktoum, and Alisher Usmanov. Our guide tells you more about all the biggest yachts in the world .

At 417 feet (127 m), Amazon founder Jeff Bezos’ sailing yacht, Koru (formerly Project Y721), is one of the world’s largest yachts.

The 181-m (590 ft) Azzam is the world’s longest yacht in length, but the 156-m Dilbar has a much larger internal volume (measured in Gross Tons) at 15,917 GT (Gross Tons) versus 13,136 GT for Azzam. As such, Dilbar is the world’s largest yacht in volume. Read our full guide to discover the largest yachts in the world .

The biggest yacht in the world is the Azzam , which has an estimated cost of $600 million. She’s owned by Sheikh Khalifa bin Zayed Al Nahyan and is not currently for sale.

In terms of the number of megayachts, the largest superyacht-owning country is the United States. Nationality-wise, beyond American, an increasing percentage of superyacht owners are Turkish, Greek, Emirati, German, Australian and Dutch.

About the author

Emma Treagus

Women’s fashion & travel editor.

A former fashion assistant and budding entrepreneur who calls the world her home, Emma writes many of Luxe Digital’s women’s style and travel stories, drawing on her passion and experience for slow fashion alongside an appreciation for current trends. When she’s not getting her way with words, you’ll find her exploring a new city (at quite a walking pace)—locating the nearest sushi restaurant or devouring a book on the beach.

Learn more about Emma Treagus

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• Lurssen Yachts

On the 5th April 2013 Lürssen, the leading shipyard for large luxury yacht building, launched the 180m yacht AZZAM - the largest motor yacht in the world. The sleek and elegant superyacht features exterior design by Nauta Design.

Fulk Al Salamah

• Mariotti Yachts

This 164-metre (538ft) superyacht was built in Italy by Mariotti Yachts and now sits in the Omani capital as part of the royal fleet. The Italian built superyacht is currently the second largest privately owned yacht in the world, after Lurssen's Azzam.

• Blohm + Voss

Roman Abramovich's yacht Eclipse has received a huge amount of industry attention, not just for its size but for the celebrity of its owner. Eclipse is the largest and most expensive superyacht ever built. When initially ordered she was estimated to cost approximately £330million, by the time she was delivered however, her overall costs were closer to the £1billion mark due to the extra luxury fittings and security measures required by her owner. With a crew of up to 60, Eclipse is a giant of the sea. She was the fourth superyacht comissioned by Abramovich.

• Platinum Yachts

This magnificent yacht was originally commissioned by Prince Jefri Bolkiah of Brunei. Construction was suspended in 1998 and the vessel left unfinished until HH Sheik Mohammed bin Rashid al-Maktoum secured the rumoured $300 million project. Platinum Yachts took the mega yacht to completion and in 2006 launched Dubai to become the world’s largest private yacht. Today however, Dubai is the second largest privately owned yacht in the world.

Launched in February 2022, Project Blue is Lurssen's latest secretive yacht project. With little revealed about her specifications and designers, her expansive size was confirmed by the German shipyard following her launch: an incredible 160m. Project Blue will be Lurssen's second-largest superyacht, and is due to be delivered in 2023. She was recently spotted in Bremerhaven, Germany, making her way out to sea for her maiden sea trial. She is expected to have a beam of 21m, and a gross tonnage of 15,320 GT. Her other specifications are currently unknown.

Originally known as Project Omar, the 156 metre superyacht Dilbar was launched in 2016 after over 4 years of construction. A favourite with yachtspotters worldwide, Dilbar is considered the largest superyacht in the world by volume.

Like most royal superyachts, little is known about Al Said, a giant mega yacht formerly codenamed "Project Sunflower". She was delivered to the Sultan of Oman in 2008 as a replacement for a smaller mega yacht of the same name. At a stunning 155m, Al Said consists of six large decks and features striking exterior and interior design by Espen Oeino International, the same company that designed the stunning 127m mega yacht Octopus. According to reports, Al Said is said to accommodate as many as 70 guests and 154 professional crew, as well as featuring a concert room capable of accommodating a 50 piece orchestra.

When construction of A+ (formerly named Topaz) first began she was forecast to be the 4th largest yacht in the world and to measure approximately 147m (482’3’’ft). Having left her floating shed at the Lürssen shipyard located in Bremen, Germany, she is now ready to claim that mantle and undergo the final phases of construction.

Prince Abdulaziz

• Helsingor Vaerft

As one of the yachts of the Saudi Royal Family, Prince Abdulaziz is used to conduct official business as well as for pleasure. The largest yacht built in the 20th century, the interior alone took 15 months to complete. Originally built for the late King Fahd of Saudi Arabia who named the yacht after his son, it is now owned by his brother Abddullah.

Very little is known about Lurssen's mysterious superyacht OPERA. At 146m, the superyacht will be the sixth largest yacht Lurssen has built at the time of her launch in September 2022. OPERA was first spotted in May 2021 when she transported to the yard's Bremen outfitting facilities in Germany.

El Mahrousa

• Samuda Bros.

This Egyptian presidential yacht is not only one of the world’s largest but also one of the oldest. Built in 1865 in London, the yacht was intended for the King of Egypt. Originally named Mahroussa, El Horriya was extended in 1872 and again in 1905.  Nowadays she is berthed in Alexandria and is listed as a training ship by the Egyptian Navy.

Developed by German shipyard Lürssen, construction of Project Luminance is underway at their facilities near Lemwerder. Due to enter the esteemed list of the Top 10 largest superyachts in the world, information about the 145m superyacht is limited at this moment in time. Lürssen are world-famous for their incredible innovations and their capacity to build extremely large mega yachts filled with numerous features. Photos that have been captured of the boat indicate that she will have considerable deck space with plenty of room left over indoors to be packed out with luxury.

SAILING YACHT A

Sailing Yacht A is a highly unique vessel, with an LOA of 142.81m. She is one of the world’s largest and the most advanced superyachts with a number of unique features, including an underwater observation pod, hybrid diesel-electric propulsion system and premium navigation systems. Her three masts are the tallest and most highly loaded freestanding composite structures in the world. Her futuristic design was created by Philippe Starck, her smooth silver-metallic surfaces challenging the expectations of conventional aesthetics.

As one of the most well-known builders of Top 100 yachts, Lurssen's NORD (formerly Opus and Redwood) has been highly anticipated as one of the largest ever to launch from the German yard. Also the largest project set to launch in 2020, at 142m, she will accommodate up to 36 guests in 20 cabins and was designed by Nuvolari Lenard.

• ADMShipyards

The 141m superyacht Swift141, now christened 'Yas', was successfully launched by ADMShipyards in November 2011; entering the record books as both the largest launch of 2011 and most significant superyacht in recent history. ADMShipyards, members of Privinvest, has proudly announced the launch of their first superyacht. At 141 meters, this stunning private yacht ranks as the sixth largest superyacht in the world.

• Lloyd Werft

Project Solaris is the revolutionary explorer yacht built by German masters of engineering Lloyd Werft. Topping off the yard's record for ultra large luxury yacht build, Project Solaris is an estimated 139m+ explorer yacht at the German giant's shed.

Scheherezade

As with most yachts in construction at Lurssen, little is known about this 140m project. We do not yet know the designer or architect, but she has been spotted moving around the build-hall. Her sightings have lead yacht spotters on the docks of the yard to aptly name her 'Project Lightning.' We hope to see her launch towards the end of 2019.

Ocean Victory

• Fincantieri Yachts

The largest yacht ever built in Italy and one of the ten largest in the world, Fincantieri has announced the successful delivery of Project Victory - a 140 metre superyacht launched in 2014 - under the official name of Ocean Victory.

Code named as Mipos (short for Mission Possible) during her construction, Al Salamah belongs to Saudi Arabian Defence Minister Prince Sultan bin Abdul Aziz. Kept a great secret, rumours tell that she has over 80 rooms, a helipad, and an indoor swimming pool complete with glass roof. A real working wonder, this yacht was completed in 1999 after only two years.

Owned by media bigwig David Geffen, Rising Sun is rumoured to have been commissioned by Ellison specifically to be larger than Paul Allen’s Octopus. This 2004 yacht is spread over five decks and is equipped with everything from Jacuzzi bathrooms and wine cellars to a top deck basketball court.

What Size Yacht To Cross The Atlantic? (Here’s What You Need to Know)

Crossing the Atlantic in a yacht is an ambitious but rewarding endeavor.

Whether youre a recreational sailor or a seasoned professional, the size of the yacht you choose will make a world of difference on the journey.

Before you set sail, you need to consider a number of factors, such as the number of people on board, the size and type of crew, the length of the voyage, fuel and crew requirements, route of crossing, weather conditions, and emergency services available.

In this article, well cover all these topics and more to help you find the right size yacht for your Atlantic crossing.

Table of Contents

Short Answer

The size of yacht needed to safely and comfortably cross the Atlantic Ocean will depend on factors such as the number of people on board, the type of voyage, and the experience of the captain and crew.

Generally, the vessel should be a minimum of 36 feet in length and have enough stowage capacity to carry enough supplies and provisions for the voyage.

The yacht should also be outfitted with the necessary navigation, communication, and safety equipment to make the voyage.

Lastly, it should be well-maintained to ensure reliable performance throughout the voyage.

What To Consider When Choosing A Yacht Size

When deciding what size yacht to choose for an Atlantic crossing, there are several key factors to consider.

The number of people on board, the size and type of the crew, and the length of the voyage will all factor into the size of yacht you need.

A larger yacht will provide more space and comfort, but will also require more fuel and crew to manage.

It’s also important to consider the route of the crossing, the type of weather that is expected, and the type of emergency services available along the way.

The size of yacht should also be determined by the purpose of the crossing and the preferences of the crew.

For instance, if the purpose of the voyage is primarily recreational and the crew is smaller, then a smaller yacht may be more suitable.

On the other hand, if the purpose is more commercial and the crew is larger, then a larger yacht may be the better choice.

The type of vessel is also important.

Sailboats, motorboats, and catamarans all have different requirements for size, fuel efficiency, and crew.

For instance, sailboats require larger masts and rigging, which can limit the size of the vessel.

Motorboats, on the other hand, can be larger and can travel faster, although they also require more fuel.

Catamarans are typically the largest vessels, but they also require the most crew and are the most difficult to maneuver in rough seas.

Finally, the length of the voyage is an important factor.

A longer voyage requires more fuel, supplies, and crew, so a larger yacht may be necessary.

Additionally, a longer voyage may require more sophisticated navigational and safety equipment, so it’s important to consider the type of emergency services available along the route.

In conclusion, choosing the right size yacht for an Atlantic crossing requires careful consideration of several factors.

The number of people on board, the size and type of the crew, the length of the voyage, the route, the type of weather, and the type of emergency services available all need to be taken into account.

Ultimately, the decision should be based on the purpose of the voyage and the preferences of the crew.

Number Of People On Board

When deciding on the size of yacht to choose for an Atlantic crossing, the number of people who will be on board should be the first factor taken into consideration.

The size of the yacht should be able to comfortably accommodate the number of passengers and crew members, with enough space for sleeping, eating, and lounging.

Any extra space that may be needed for storage should also be taken into account.

It is important to note that larger yachts will require more fuel and crew to manage, and may be more expensive to maintain.

Therefore, it is important to make sure that the size of the yacht matches the needs of the voyage and the crew.

Size And Type Of Crew

When selecting the size of your yacht for an Atlantic crossing, it’s important to consider the size and type of the crew.

If there will be a large number of people on board, a larger yacht is likely required to provide enough room and comfort.

On the other hand, a smaller yacht may be more suitable for a smaller crew.

Additionally, the size and type of crew will determine the type of personnel needed to manage the yacht.

For example, it may be necessary to hire a captain and crew if youre crossing a large body of water.

If the crew consists of experienced sailors, a smaller yacht may be sufficient as they will be able to handle all of the boats operations.

Its important to consider the number of people on board, experience level, and the amount of space available when selecting the size of yacht for an Atlantic crossing.

Length Of Voyage

When deciding what size yacht to choose for an Atlantic crossing, one of the most important factors to consider is the length of the voyage.

A longer voyage will require a larger yacht to provide more space and comfort for the crew and passengers.

On a longer voyage, there may be more people on board, providing a need for additional sleeping and eating areas, as well as more room for recreational activities.

Additionally, a larger yacht will be able to carry more supplies, such as food, fuel, and spare parts, making it more self-sufficient and able to handle any unforeseen events.

It is important to consider the route of the crossing, as some areas may be more prone to rough weather or dangerous conditions, and a larger yacht may be better equipped to handle these conditions.

A larger yacht may also require more fuel, as well as a larger crew, to manage the vessel.

Ultimately, the size of yacht will depend on the purpose of the crossing and the preferences of the crew.

Fuel And Crew Requirements

When deciding on the size of yacht to take for an Atlantic crossing, it’s important to factor in the fuel and crew requirements.

A larger yacht will require more fuel and crew to manage, especially if the voyage is longer.

The crew size and type should also be taken into account when deciding on the size of yacht.

A larger yacht will require more crew to manage the vessel, and the crew should be experienced and knowledgeable in seafaring and navigation.

It may also be necessary to hire extra crew members for certain tasks such as cooking, engineering, and maintenance.

Additionally, the yacht should be equipped with the necessary safety equipment such as life rafts and flares, as well as navigational equipment such as depth sounders and GPS.

All of these factors should be considered when deciding on the size of yacht for an Atlantic crossing.

Route Of Crossing

When deciding on the size of yacht for an Atlantic crossing, it is important to consider the route of the crossing.

For example, a longer voyage from the United States to Europe will require a larger yacht than a shorter one from the Caribbean to the United States.

A larger yacht will provide more space and comfort, as well as more fuel and crew to manage.

Additionally, the route of the crossing should be considered for emergency services that may be available along the way.

For example, if the voyage will be close to land, there may be medical facilities and emergency services that could be reached in the event of an emergency.

However, if the voyage will be far away from land, it is important to consider the type of emergency services that would be available if needed.

Weather Conditions

When deciding what size yacht to choose for an Atlantic crossing, it is essential to consider the weather conditions that may be encountered during the voyage.

A larger yacht is more likely to be able to handle a variety of weather conditions, such as high winds, heavy rain and strong waves.

The size of the yacht should also be considered when it comes to the type of weather expected.

A larger yacht is more suitable for long-distance voyages, as it is more capable of handling the prolonged and potentially extreme weather conditions.

It is important to note, however, that larger yachts may require additional fuel and crew to manage in order to safely navigate the seas.

When preparing for an Atlantic crossing, it is important to research the expected weather conditions for the route.

Knowing the weather conditions that may be expected on the route can help to determine the size of the yacht that is suitable for the voyage.

For example, if the route is expected to experience strong winds, it is best to choose a larger yacht that is capable of handling the windy conditions.

Additionally, if the route passes through areas with higher than average waves, a larger yacht is much more suitable for the voyage.

It is also important to consider the type of emergency services available along the route.

In the event of an emergency, such as a medical emergency or a vessel in distress, a larger yacht is more likely to be able to access the necessary help.

Additionally, a larger yacht will be able to carry more supplies, such as food, water, and other equipment, which can be essential in an emergency situation.

Overall, the size of the yacht for an Atlantic crossing should be based on the number of people on board, the size and type of the crew, the length of the voyage, the route of the crossing, the type of weather that is expected, and the type of emergency services available along the way.

With the right amount of research and planning, the perfect size yacht can be chosen for a successful and safe Atlantic crossing.

Emergency Services Available

When planning a transatlantic crossing, it is important to consider the type of emergency services available along the route.

On a smaller vessel, you may not be able to access all of the necessary services, so it is important to choose a vessel with enough room to accommodate the necessary crew and equipment, as well as enough fuel to reach the destination in the event of an emergency.

When considering the size of the yacht, the type of emergency services available should be carefully assessed.

For example, if you are crossing during hurricane season, it is important to choose a vessel that can withstand the high winds and potentially heavy waves.

If you are crossing in an area where search and rescue services are available, it is important to have a vessel large enough to be spotted quickly.

It is also important to consider the type of emergency services available at ports of call along the route.

If you are traveling to a remote area, it is important to have a vessel with enough room to accommodate the necessary crew and equipment to make port in the event of an emergency.

If you are traveling to a port with a significant presence of medical and emergency personnel, it is important to have a vessel large enough to accommodate the necessary personnel.

Overall, the size of the yacht for a transatlantic crossing should be based on the purpose of the voyage, the number of people on board, the size and type of crew, the length of the voyage, the route of the crossing, the type of weather that is expected, and the type of emergency services available along the way.

By taking all of these factors into consideration, you can ensure that you have the best possible vessel for your crossing.

Final Thoughts

Choosing the size of yacht for an Atlantic crossing is an important decision that requires careful planning.

The size of the yacht should be determined by the number of people on board, the size and type of the crew, the length of the voyage, the route of the crossing, the weather conditions, and the availability of emergency services.

Ultimately, the size of the yacht should be based on the purpose of the crossing and the preferences of the crew.

With the right information and careful consideration, you can make an informed decision on the right size yacht to choose for your Atlantic crossing.

James Frami

At the age of 15, he and four other friends from his neighborhood constructed their first boat. He has been sailing for almost 30 years and has a wealth of knowledge that he wants to share with others.

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Inside the shocking Sicily yacht tragedy that left 7 people dead

There was a violent storm, but even then, luxury yachts are built to weather such events. so why did this boat sink off the coast of sicily, leaving seven people dead, by natalie finn | e news • published august 24, 2024 • updated on august 24, 2024 at 10:34 am.

Originally appeared on E! Online

Nobody was trying to reach the lowest depths of the ocean or otherwise test the boundaries of human endurance .

📺 Watch News4 now: Stream NBC4 newscasts for free right here, right now.

But what was supposed to be a routine pleasure cruise aboard a superyacht turned deadly all the same on the morning of Aug. 19 when the 184-foot Bayesian got caught in a storm and sank off the coast of Sicily .

"I can't remember the last time I read about a vessel going down quickly like that," Stephen Richter of SAR Marine Consulting told NBC News . "You know, completely capsizing and going down that quickly, a vessel of that nature, a yacht of that size."

Of the 22 people onboard, including crew, seven people died. The last of the bodies was recovered Aug. 23, an expectedly sad coda to what had already been a tragic week as the search for answers as to how this happened got underway.

And to be sure, every minute of the Bayesian's ill-fated outing is being fiercely scrutinized, starting with the general seaworthiness of the vessel itself.

Because, frankly, this was a freak occurrence.

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"Boats of this size, they’re taking passengers on an excursion or a holiday," Richter explained. "They are not going to put them in situations where it may be dangerous or it may be uncomfortable, so this storm that popped up was obviously an anomaly. These vessels that carry passengers, they’re typically very well-maintained, very well-appointed."

But in this case, a $40 million yacht sank, seven people are dead—including a billionaire tech mogul and his 18-year-old daughter—and morbid fascination doesn't need a second wind.

Here is how the story of the Sicily yacht tragedy has unfolded so far:

What happened to the yacht that sank off the coast of Sicily?

The Bayesian had set off from the Sicilian port of Milazzo on Aug. 14 at capacity with 12 guests and 10 crewmembers aboard.

The aluminum-hulled vessel was built in 2008 by Italian shipbuilder Perini Navi and registered in the U.K. Cruise sites listed it as available for charter at $215,000 per week, per the Associated Press.

On the morning of Aug. 19, the superyacht was anchored off the coast of Porticello, a small fishing village in the Sicilian province of Palermo (also the name of Sicily's capital city), when a violent storm hit.

The vessel "suddenly sank" at around 5 a.m. local time, seemingly due to "the terrible weather conditions," the City Council of Bagheria announced shortly afterward, per NBC News .

At the time, only one person was confirmed dead—the ship's chef—but six others were said to be missing. The 15 survivors—who managed to make it onto an inflatable life boat, according to emergency officials—were rescued that morning by the crew of another yacht that had been nearby when the storm hit.

"Fifteen people inside," Karsten Borner, the Dutch captain of the ship that was able to help (the Sir Robert Baden Powell), told reporters afterward, per Reuters. "Four people were injured, three heavily injured, and we brought them to our ship. Then we communicated with the coast guard, and after some time, the coast guard came and later picked up injured people."

When the storm hit, his boat ran into "a strong hurricane gust," Borner said, "and we had to start the engine to keep the ship in an angled position."

They "managed to keep the ship in position," he continued, but once the storm died down, they realized the other boat that had been behind them—the Bayesian—was gone.

The wreck ended up settling 165 feet below the surface, according to Italy's national fire department.

Fire officials said that divers, a motorboat and a helicopter were deployed to search for the missing.

Meanwhile, footage was captured of the ship capsizing on closed-circuit TV about a half-mile away from where it was anchored.

In the video obtained by NBC News, the illuminated 250-foot aluminum mast of the ship appears to list severely to one side before disappearing completely. Survivors recalled having just a few minutes to literally abandon ship.

Who were the seven people who died when the yacht Bayesian sank?

The tragedy initially became headline news because billionaire tech mogul Mike Lynch—"Britain's Bill Gates," some U.K. media called him—was among the missing. His body was ultimately recovered Aug. 22 .

"They told me that suddenly they found themselves catapulted into the water without even understanding how they had got there," Dr. Fabio Genco, head of the Palermo Emergency Medical Services, told NBC News Aug. 22. "And that the whole thing seems to have lasted from 3 to 5 minutes."

Genco said he got to Porticello about an hour after the Bayesian capsized.

Survivors "told me that it was all dark, that the yacht hoisted itself up and then went down," he said. "All the objects were falling on them. That’s why I immediately made sure, by asking them questions, if they had any internal injuries."

Why did the yacht sink?

Italian prosecutors are investigating to determine what transpired before the boat went down, according to NBC News.

Meanwhile, the CEO of shipbuilder Perini's parent company The Italian Sea Group defended the vessel itself as "unsinkable."

Perini boats "are the safest in the most absolute sense," Giovanni Costantino told Sky News Aug. 22 . What happened to the Bayesian "put me in a state of sadness on one side and of disbelief on the other," he continued. "This incident sounds like an unbelievable story, both technically and as a fact."

Costantino said it had to have been human error that led to the boat sinking, declaring, "Mistakes were made."

"Everything that was done reveals a very long summation of errors," he told newspaper Corriere della Sera Aug. 21, in an interview translated from Italian. "The people should not have been in the cabins, the boat should not have been at anchor."

The weather was "all predictable," he continued, adding that the storm "was fully legible in all the weather charts. It couldn't have been ignored."

The yacht's captain, identified as James Cutfield of New Zealand, was taken to Termini Imerese hospital for treatment. From there, he told La Repubblica, per Sky News , that he didn't see the storm coming.

Borner, the captain of the ship that rescued the 15 Bayesian survivors, told NBC News that he noticed the storm come in at 4 a.m. local time, and saw what looked to him like a waterspout, a type of tornado that forms above water.

The International Centre for Waterspout Research posted on X Aug. 19 that it had "confirmed 18 waterspouts today off the coasts of Italy. Some were powerful waterspouts, one of which may have been responsible for the sinking of a large yacht off of Sicily."

Borner said he didn't know why the Bayesian sank so quickly, guessing "it may have something to do with the mast, which was incredibly long." (A tall mast, even with its sails down, means there's more surface area exposed to wind, which can result in tipping.)

Confirming that one person was dead and six unaccounted for immediately following the wreck on Aug. 19, Salvo Cocina of Sicily's civil protection agency told reporters that a waterspout had struck the area overnight.

"They were in the wrong place at the wrong time," he said.

The 59-year-old founder of software firm Autonomy had been on the trip with his wife Angela Bacares and their 18-year-old, Oxford-bound daughter Hannah to celebrate his recent acquittal in the U.S. on fraud and conspiracy charges stemming from the $11.7 billion purchase of his company by Hewlett-Packard in 2011.

In a bizarre turn of events, Lynch's co-defendant at trial, Stephen Chamberlain, the former vice president of finance at Autonomy, died after being taken off life support following a road accident on Aug. 17. Chamberlain's attorney told Reuters Aug. 20 that his friend and client had been out for a run when he was "fatally struck" by a car.

Meanwhile, multiple people who contributed to Lynch's defense were on the cruise with him and his family.

The bodies of Morgan Stanley International Chairman Jonathan Bloomer—who testified on Lynch's behalf—and his wife Judy Bloomer, as well as lawyer Chris Morvillo, a partner at the U.S. firm Clifford Chance, and his wife Neda Morvillo, a jewelry designer, were recovered on Aug. 21 .

In a LinkedIn post thanking the team that successfully defended Lynch, Morvillo wrote, per Sky News , "And, finally, a huge thank you to my patient and incredible wife, Neda Morvillo, and my two strong, brilliant, and beautiful daughters, Sabrina Morvillo and Sophia Morvillo. None of this would have been possible without your love and support. I am so glad to be home. And they all lived happily ever after…"

The first casualty confirmed Aug. 19 was the ship's Canadian-Antiguan chef, later identified as Recaldo Thomas.

"He was a one-of-a-kind special human being," a friend of Thomas told The Independent . "Incredibly talented, contagious smile and laugh, an incredible voice with a deep love of the ocean and the moon. I spoke to him nearly every day. He loved his life his friends and his job."

Hannah's body was the last of the missing six to be found , with divers bringing her remains ashore on Aug. 23.

Lynch and Bacares, who was rescued, also shared a 21-year-old daughter, according to The Times.

While awaiting trial, Lynch—who maintained his innocence throughout the proceedings—had spent 13 months under house arrest in San Francisco. Back home in London afterward, he admitted to The Times in July that he'd been afraid of dying in prison if he'd been found guilty. (He faced a possible 25-year sentence.)

"It's bizarre, but now you have a second life," he reflected. "The question is, what do you want to do with it?"

(E!, NBC News and Sky News are all members of the Comcast family.)

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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."

Authorities Investigating Crew Members of Sunken Yacht, Captain for Manslaughter

No charges have been pressed — yet., plot thickens.

The investigation into the sinking of a yacht earlier this month in Siciliy that killed seven people, including British billionaire Mike Lynch , is expanding. Italian authorities are now including two more crew members in its probe, The New York Times reports , joining the ship's captain, James Cutfield, who has been under a manslaughter inquiry since Monday.

The 184-foot vessel, the Bayesian, capsized while at anchor just minutes after being caught in a storm the morning of August 19. There were 22 people aboard the yacht — 10 crew and 12 passengers — when it went down. Among the seven who died, six were passengers, including Lynch and his 18-year-old daughter Hannah.

Newly under investigation, as of Wednesday, are the ship's engineer Tim Parker Eaton, who manned the engine room, and sailor Matthew Griffith, who was serving as lookout the night of the sinking.

No charges have been pressed yet, because in Italy being investigated doesn't necessarily mean that criminal charges will follow, according to the NYT .

Too Big to Sink

That a ship of the Bayesian's size and caliber sank so easily has raised concern among sailors and investigators — and even the ship's manufacturer , which maintains that it should have been "unsinkable."

There are also questions about why so many passengers perished, while all but one of the crew made it out alive. Raffaele Cammarano, the prosecutor of the case, suggested that the victims may have been asleep while the disaster swiftly unfolded.

Whether any crew members were there to wake them up is "precisely what we are trying to ascertain," he said, as quoted by The Guardian .

So far, only Cutfield, the captain, is under a manslaughter investigation for possible negligence that led to the deaths of the passengers. The 51-year-old New Zealander was interrogated by prosecutors on Tuesday, but exercised his right to remain silent.

All nine of the surviving crew members, including Cutfield, have left Italy, according to the NYT . They were under no obligation to stay there, but were required to appoint legal representation before leaving, Reuters reported .

Dredging Up

The investigation is still in its nascent stages, but several red flags have already cropped up.

Giovanni Costantino, CEO of the Italian Sea Group, which owns the Bayesian's builder Perini Navi, argued in an interview with Italian newspaper Corriere della Sera  that the ship being at anchor was one of them. He suggests that the crew may have failed to follow proper procedures , such as lifting anchor, steering into the storm, and securing all doors and hatches.

According to CBS News , which cites reports by Italian media, prosecutors are investigating whether Eaton, the Bayesian's engineer, neglected to use security systems that automatically closed all these openings in the ship's hull, which could explain why it sank so rapidly.

But to reiterate, no one has been charged yet. A crucial stage of the investigation will be salvaging the shipwreck, which currently lies 165 feet under the sea, and that will take considerable time.

More on maritime disasters: Billionaire Yacht Was Piloted Recklessly Before Deadly Sinking, Its Builder Warns

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