alu marine catamaran

ELEVATE YOUR EXPERIENCE

BEST OF BOTH WORLDS, HYBRID SOLUTIONS, FUEL SAVINGS

This equilibrium maintains speed when needed, ensuring secure passages, optimal operational economy, unwavering reliability, and zero-fuel serenity at anchor. 

The ocean connection bestows tranquility, adventure, and sustenance, fostering personal well-being and a vibrant lifestyle.

CUSTOM CATAMARAN ALUMINIUM YACHTS

Discover the ultimate in custom catamaran aluminium yachts with Cosmopolitan Yachts. Our passion for excellence shines through in every detail, from the cutting-edge hybrid diesel/electric propulsion system to the meticulous construction using top-grade materials and state-of-the-art technologies.

At Cosmopolitan Yachts, we take pride in delivering superior build quality and attention to every detail, ensuring unmatched durability, performance, and luxury. Our custom catamaran aluminium yachts are designed to excel in any environment, with marine-grade aluminium construction that provides strength, sturdiness, and resistance to corrosion for sailing in any water conditions.

Whether you’re looking for a silent electric boat or speeds of over 26 knots, our custom catamaran aluminium yachts offer ultimate flexibility in power and fuel efficiency. And with advanced hull forms and superior bow height, you’ll enjoy comfortable sailing even in seas exceeding 1.75m.

Embark on a journey of a lifetime with a custom catamaran aluminium yacht from Cosmopolitan Yachts. Let us help you bring your dream yacht to life with our superior build quality, attention to detail, and passion for excellence. Contact us today to start creating the perfect yacht for your needs and make unforgettable memories on the water.

HYBRID-ELECTRIC, HYDROGEN AND FUTURE BIOFUEL AND BIOGASES

At Cosmopolitan Yachts, we’re committed to creating custom catamaran yachts with the latest in propulsion technology. Our hybrid diesel/electric propulsion system offers ultimate flexibility in power and fuel efficiency,but we don’t stop there. We’re also exploring the use of hydrogen and biofuels as a more sustainable alternative for yacht propulsion and all our yachts are classified as “Hydrogen-Ready”. Hydrogen yachts or the use of biofuels and biogas could be the future of yachting, offering an even cleaner and more sustainable, self-sufficient energy source for powering your yacht.

Our dedication to sustainability and innovation means that we’re always looking for ways to reduce our impact on the environment while still delivering unparalleled performance and luxury. With the combined integration of the most advanced electric and hybrid technologies and, with the use of the next generation of fuels such as hydrogen, solar, biogas or biofuels,we can offer the perfect propulsion system to meet todays.

DISCOVER OUR YACHTS

New journeys await.

Discover the ultimate in durability and performance with our catamaran yacht range, designed to excel in any environment. with a robust aluminium construction and hydrid diesel/electrical propulsion system to make the most of the best technological advancements without any compromises.

THE WAY FORWARD

Equipped with either a conventional diesel or a hybrid diesel/electric propulsion system installed in both hulls, each with dual power inputs. This grants Cosmopolitan Yachts the ability to operate silently and emission-free as an electric boat at lower speeds, while still achieving speeds of over 26 knots. Complete redundancy and future proof.

A MAJOR IMPROVEMENT

To create the ultimate catamaran yacht, we have meticulously crafted every aspect with a keen eye for detail, to provide unparalleled performance and luxury. Our yachts are constructed using top-grade materials and state-of-the-art technologies, ensuring durability, comfort, and efficiency.

SUPERIORLY BUILT

The use of high-quality marine aluminium in our yachts not only provides strength and sturdiness but also ensures resistance to corrosion, making it perfect for sailing in various water conditions.

EXCEPTIONALLY DESIGNED WHIT A MAJOR IMPROVEMENT

We believe that every yacht should be a masterpiece, crafted with passion and dedication. Our commitment to quality and attention to detail is reflected in every yacht we build.

UNMATCHED COMFORT

The most spacious interiors, complete with luxurious to create an unforgettable sailing experience. The modern exterior design pays meticulous attention to every detail, including the placement of windows and other features that provide maximum comfort and offer breathtaking views of the surrounding water.

The yacht’s advanced hull form and superior bow height work in tandem to ensure comfortable sailing, even in seas exceeding 1.75m.

Berthon Winter Collection

Latest issue

August 2024

In the August 2024 issue of Yachting World magazine: News Few finish a tempestuous Round The Island Race European rules are eased for cruising to France and Greece Olympic sailing…

• Yachting World
• Digital Edition

Garcia Explocat 52 review: A go-anywhere aluminium catamaran

• February 23, 2021

The new go-anywhere Garcia Explocat 52 offers an enticing combination of space, pace and rugged construction. Rupert Holmes tested the new boat for Yachting World and felt it's clear she has the potential to make easy 250 mile days in the right conditions.

Product Overview

Manufacturer:, price as reviewed:.

In recent years there have been two clear trends in serious long-term cruising yachts. Firstly catamarans have become mainstream, to the extent that professional racing sailors talk of ‘buying a catamaran’ for cruising with their families – a monohull doesn’t even enter the equation.

This trend can also be seen in ARC (Atlantic Rally for Cruisers) entries, where multihulls are increasingly common. In 2020 they accounted for 28% of the total fleet and a much higher proportion of new boats and more recent designs.

The second trend is the rapidly growing popularity of rugged metal expedition yachts. Aluminium is favoured for this as it offers good strength and stiffness without a weight penalty, especially for yachts over a critical size. That’s why many top-end racing yachts were built of aluminium before composites dominated that scene.

This is a boat that’s capable of effortlessly eating miles on a long passage. Photo: Jérôme Houyvet/Garcia Yachts

It was, therefore, surely only a matter of time before someone married these two concepts to create an aluminium expedition catamaran. Cherbourg-based Garcia Yachts has been building metal boats for almost 50 years, including Jean Luc Van Den Heede ’s 36.15 MET, in which he scored a podium finish in the inaugural Vendée Globe Race in 1989.

Equally Garcia needs no introduction as a front-runner in the development of expedition yachts, thanks to the success of the Exploration 45 that was developed with ARC founder Jimmy Cornell eight years ago. What’s less well known is that the Explocat 52 is by no means Garcia’s first aluminium catamaran.

A pair of 43-footers 15 years ago were followed by the SC48, one of which consistently posted some of the fastest passage times in the 2017/18 World ARC .

As part of the Grand Large Yachting group Garcia was also able to draw on considerable expertise from Outremer and Gunboat for its latest model, while naval architecture is by Pierre Delion, who also drew the SC48.

The Explocat 52 is therefore the product of a highly knowledgeable development team and has already attracted plenty of attention, including nomination for the 2021 European Yacht of the Year awards.

The core concept for the Explocat 52 is a robust, safe long-range yacht that offers good passagemaking speeds. A high level of comfort, both at sea – even in inclement weather – and in harbour was also a key requirement, and the boat had to be capable of being handled by a couple.

Go anywhere?

While a key marketing message for Garcia’s monohulls is ‘Nowhere you can’t go’, the company accepts this won’t apply as literally to the Explocat 52, even though the boat’s impressive speed potential will enable routing around a lot of bad weather.

Explocat 52, the ultimate aluminium exploration catamaran by Garcia Yachts

The problem is, unlike being knocked down in a monohull, capsizing a multihull is always catastrophic. There are parts of the world, especially at high latitudes in the southern hemisphere, or out of season in the north, where it could be impossible to route around potentially dangerous weather. Nevertheless, the boat is intended to stretch the boundaries that are sensible for exploring the globe with a catamaran, allowing owners to sail a lot further north and south than might be prudent with existing designs.

Rugged construction is also a benefit when venturing off the beaten track in tropical waters. If anything goes wrong while exploring a poorly-charted lagoon, for instance, a fibreglass boat may be in grave danger. Many foam sandwich hulls have surprisingly thin outer skins, which can make the structure vulnerable to abrasion, whether from coral or a concrete quay.

By contrast, the thinnest plating of the Explocat 52 is 5mm, which increases through 8, 10 and 12mm thicknesses, before reaching an enormously reassuring 14mm at the bottom of the hulls. The boat has framing of up to 14mm and is structurally engineered to eliminate flexing between the hulls.

A substantial keel with a long chord length is welded to the bottom of the hulls. They are marginally deeper than the rudders, which offers some protection, as well as providing a firm base on which to dry out on a beach. At the same time the key elements that have made Garcia’s Exploration monohulls so successful are incorporated.

These include fore and aft watertight bulkheads and upstands for through-hull fittings that enable all seacocks to be above the waterline. A skeg ahead of the saildrives and rudders provides good protection, while the rudders are large enough to offer redundancy in the event of one being lost. In addition, the top aft corner of the rudders have a sacrificial zone designed to eliminate risk of the blade puncturing the hull, or becoming jammed, if it hits an obstruction with enough force to bend the stock.

What about weight? Are metal multihulls uncommon because they’re simply too heavy? As with aluminium monohulls, where the material offers better strength/weight ratios for larger boats, around 14m/46ft overall length seems to be a transition point for catamarans.

Below that composite boats will always be lighter, but above that length aluminium is lighter for equivalent rigidity than a composite structure that doesn’t use exotic materials. At 18.9 tonnes lightship displacement the Explocat is therefore in the same league as other cruising catamarans of a similar size and indeed lighter than some.

Substantial built-in attachment points for shorelines are found at the waterline of each bow for use in extreme conditions, plus attachment points aft for a drogue

Interestingly, it’s also a similar figure to that of the Exploration 52 monohull, yet the Explocat offers a large amount of extra space and 35% more sail area. Maximum payload is a useful five tonnes. But how does that translate on the water?

Rapid exploration

Our test took place from Cherbourg on a gloriously sunny late November day, with a gusty and shifty southerly breeze varying from 7-19 knots.

It’s immediately clear the Explocat 52 picks up and sails at speeds that belie its displacement, putting it in a different league to other expedition yachts of similar length, especially when reaching.

Broad reaching at 120° TWA with full main and Code 0 in 16 knots of true wind we cruised comfortably at 10 knots, reaching an unfussed maximum of 11.8 knots, with the boat still feeling rock steady.

When the breeze picked up to 19 knots, at the design limit for the Code 0, we furled it and continued with the Solent jib instead, losing only a couple of knots of boat speed. By the time we turned upwind the wind had eased significantly, which gave a good test in conditions that can challenge cruising yachts.

Article continues below…

Boreal 52 boat test – The sailor’s off-roader

If ‘off-road’ or ‘off-piste’ were categories in sailing, the Boréal 52 would be among the top contenders. From the brushed…

Garcia Exploration 52 test: The sailing equivalent of a 4×4 off-roader

If you were to take your partner or family to some of the world’s most remote waters, exploring the oceans…

In just seven knots of true wind we made 5.3 close-hauled, rising to 6.2 in 9 knots of breeze. Maximum upwind speed was 9 knots in 15 knots of true wind. However, these numbers can’t be achieved if pinching – the boat likes to be sailed fast and free, with tacking angles of at least 105°. This is hardly a surprise for a boat of this style that’s sufficiently fast to have a big impact on apparent wind angles.

Even in light airs the Explocat is surprisingly nimble in tacks, showing no hint it might miss stays, or slow enough for steering to be difficult until speed is regained on the new tack. Obviously the steering has less feel than a lightweight monohull, but there’s enough feedback for it to feel reasonably responsive and enjoyable to helm.

The shifty and gusty offshore winds were ideal for figuring out the boat’s capability across a range of wind strengths, but the mostly flat water meant we didn’t see the boat performing in a more agitated sea state.

Pete Goss – another massively experienced high-profile Garcia owner – has sailed the boat in more lively conditions. Even fully powered up he reported the lee shrouds remaining tight and there was no telltale creaking of furniture below decks, indicating no deflection of the structure despite the high loads. “It’s incredible how fast she is,” Goss says. He was also impressed by how nimbly the boat tacks.

Cockpits and steering

Much thought has gone into optimising the deck layout. The core vision is for key operations to take place in the safety and shelter of the aft cockpit. The only exceptions are preparing the main for use and hoisting/dropping spinnakers and reaching sails.

We conducted our test in south-east to south-west winds of 7-19 knots, in flat water

As standard the helm station is offset to starboard at the front of the aft cockpit. It has a two-position swinging wheel, which provides an all-round view over the top of the coachroof in its upper position. When swung inboard and lower, the helmsman gains shelter from the hard top, while being able to see forward through the bridgedeck cabin windows.

However, at the request of the owner the first boat has twin outboard helm stations. Before sailing it I’d expected to prefer this arrangement, but didn’t warm to it. Granted, you can steer from the windward side, with a good view of the jib, but the headsail luff will also be visible from the higher of the standard steering positions.

The key problem with the twin wheels is the coachroof creates a large blind spot on the other side of the boat. This has potential to create issues when manoeuvring in confined quarters such as a marina or when bailing out of an anchorage in an unexpected squall.

Mainsheet and traveller are handled right aft on the crossbeam, while the headsail, staysail and kite sheets, plus furling lines, are handled by electric Lewmar 65 winches on each side of the cockpit. Plenty of large rope bins and bags help keep lines nicely ordered.

The rig has twin headstays, with a marginally overlapping furling Solent jib on the main forestay, plus a self-tacking furling staysail. This runs on a neat Dyneema strop, instead of a more conventional but unnecessarily expensive and heavy track.

Combined with furling spinnakers and reaching sails it’s an excellent configuration that takes the hassle out of changing gear to suit widely different conditions.

The square-top mainsail has a Dyneema strop that pulls the ‘gaff’ forward to the mast track without any need for complex hooks, making it as easy to use as pin-head sails. A fuse attaching one of the mainsheet blocks to the boom is intended as a capsize prevention device if the boat is over pressed.

When the fuse blows the strop joining the block to the boom extends by two metres, immediately depowering the sail. The idea of the forward cockpit is to provide a protected position for a lookout when sailing in ice and for anchor handling. It also doubles as a well ventilated area for relaxation when at anchor in warmer climes.

It’s generally easy to move around on deck and there are decent steps at a gentle gradient between the various different levels. I also liked the cork deck – it looks surprisingly good, has great grip and is a more environmentally friendly option than teak.

There’s plenty of stowage, both in small lockers in the cockpit benches and in cavernous sail lockers at the front of each hull.

Davits are rated to take a 500kg RIB, allowing a substantial, powerful tender to be carried.

Temperature control

Alongside the rugged exterior is supremely comfortable and well thought out accommodation.

This, of course, isn’t a boat where it would be appropriate for the distinction between interior and exterior living spaces to be all but eliminated, as it is for many recent designs intended solely for hot climates. Nevertheless, the standard specification has a drop-down window each side of the door between the saloon and aft cockpit. This will help to open the saloon to the aft cockpit and improve ventilation in warm weather.

The saloon is comfortable, bright and airy, yet also has practical sea-going elements

For colder parts of the world an air extraction system vents moist and stale interior air without needing to open hatches.

The main forward saloon windows are also equipped with demisters. In the same vein, dedicated lockers for foul weather gear and boots have mechanical ventilation and heating. These features make sailing in cold and damp regions far more civilised, yet are addressed by disappointingly few manufacturers.

The aluminium shell is lined with up to 76mm of high density foam, which provides excellent thermal and acoustic insulation. As a result the boat is impressively quiet inside when under way – in the saloon you can barely hear the engines, even at cruising speed, and the high bridgedeck – it’s 85cm above the water – means we experienced no slapping of waves.

Insulation of this standard is expensive to install and doesn’t show up on photographs. Yet yachts create a cacophony of noise in heavy weather. Effective sound proofing is therefore a critical element in creating a comfortable environment, while the thermal insulation will be a benefit whether in the tropics or the Arctic.

As you’d expect, the saloon is very bright and airy, with a good almost all-round view.

The navstation forward on the port side, next to the watertight door to the forward cockpit

The biggest drawback in this respect is at the navstation, forward on the port side, as the mast support and starboard forward mullion obscure some of the view.

Also to port is a big galley that offers plenty of secure worktop space, with low fiddles, and masses of stowage. The test boat had additional fridge and freezer space in the starboard hull. Garcia says more than half its customers choose electric cooking and this boat has a microwave, electric oven and induction hob.

The company has its roots in custom boatbuilding and offers several choices for fitting out the hulls, with options for 6-10 berth arrangements, including a classic owner’s layout. The aft cabins have natural light through two hull windows, a wide aft window to the cockpit, plus opening ports aft and overhead.

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Garcia’s longstanding knowledge of creating rugged go-anywhere yachts has enabled the yard to produce one with a very enticing combination of space, pace and rugged construction. It also benefits from a high standard of finish, attention to detail and many neat touches. It’s clear the boat has the potential to make easy 250 mile days in the right conditions. At the same time it has sufficient tankage and stowage for supplies, spares and tools to give a high level of autonomy for extended periods. The owner of the first boat intends voyaging to Svalbard and, with another seven boats on order, it’s unlikely to be long before we see Explocats in many more far-flung and interesting parts of the globe.

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RECREATIONAL BOATS

Move Beyond with RecPro

3212-CTC | RecPro

The 3212-CTC is the fisherman’s favorite of the RecPro vessels, an inclination cemented by massive aft deck fish lockers, exterior accessible head, extended T-transom, and walk-around cabin. Add tackle storage and bait stations to guarantee that the tools for catching and cleaning are never far away. Also available with a full-width superstructure, configurations including split cuddy staterooms, full galley, and upgraded interior can turn this vessel from a fish-killing machine into the perfect getaway cruiser. Contact sales to explore the full suite of custom options.

Length: 32’ Beam: 12’ Lightship: 11,000 lb HP: 250hp – 300hp Outboards Cruise: 30 kn MPG: 1.4

3513-CTC | RecPro

Join the legacy with the pride of the RecPro fleet, the 35’ x 13’ classic tunnel catamaran (CTC). Spruce up the base model by adding rod holders, downrigger pads, self-draining fish lockers, or removable dinghy davits. Pick the ideal appliances for the full-sized galley, enjoy an upgraded U-shaped dinette, or wake up refreshed with a hot water shower. Twin staterooms in the cuddy and a convertible berth ensure this vessel has ample sleeping and seating arrangements for any adventure.Contact sales to explore the full suite of custom options.

Length: 35’ Beam: 13’ Lightship: 14,000 lb HP: 350hp – 425hp Outboards Cruise: 25 kn MPG: 1.0

3814-CTC | RecPro

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Move beyond with the 3814-CTC, a hallmark of the RecPro lineup. Whether primarily used for fishing or leisure, the 38’ x 14’ platform easily accommodates both a spacious aft deck and a roomy interior. With twin forward staterooms in the cuddy, a convertible dinette, and an additional berth sunk into the starboard hull, this vessel can comfortably sleep up to 7 people. The expanded galley is equipped to house full-sized appliances, and the ample counter space is perfect for those who like to spread out. Contact sales to explore the full suite of custom options.

Length: 38’ Beam: 14’ Lightship: 17,000 lb HP: 425hp Outboards Cruise: 25 kn MPG: 0.8

Move Beyond Ordinary: BRIX Marine Launches the 3814-CTC ‘Hammer Cat’ with Starboard Walkaround for Unrivaled Offshore Adventures

Port Angeles, WA – BRIX Marine, a pioneer in maritime innovation, is thrilled to introduce [...]

4216-CTC | RecPro

The ultimate fusion of luxury and rugged versatility, the 4216-CTC sits atop the RecPro lineup as its largest vessel and an icon of industrial chic. Propelled by a pair of Volvo IPS 650s, the unhindered cruising and vessel stability can best be enjoyed either alongside the creature comforts of a fully customizable cabin, or out in the elements on the massive aft deck. A hold integrated into the swim step isolates fish storage from the engine room of the twin 510hp inboard diesels, keeping your catch cool and uncooked. Contact sales to explore the full suite of custom options.  

Length: 42’ Beam: 16’ Lightship: 30,000 lb HP: Twin Volvo D11 510hp with IPS 650 Cruise: 25 kn MPG: 1.0

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With over two decades of experience producing aluminum yachts, France’s Alu Marine has proudly introduced the Havana 72 , the very first of a new series in the Havana range of sailing catamarans.

Sturdily built for superior performance and designed for cruising on the open waters, the Havana 72 is extraordinarily seaworthy thanks to her aluminum deck, hull, and structural bulkheads. The aluminum construction will add to the catamaran’s longevity and superior stability making her ideal for long distance cruising in terms of not only speed and performance, but also great luxury as well.

Comfort abounds aboard the Havana 72 with an interior intricately designed with the utmost care given to detail by Berret Racoupeau Yacht Design , a renowned company with more than 30 years of experience designing the most innovative and luxurious vessels.

Elegant lines and the highest quality materials are used throughout this first Havana catamaran including rich woodwork, comfortable seating in two separate areas, in the cockpit and also on the flybridge, and also indirect lighting that creates a calming atmosphere for guests to enjoy. Even specially designed portholes that offer the maximum light have been included to enhance the ocean experience offering spectacular views of the vistas ahead regardless of where you are on the boat.

Located portside hull of the Havana 72 is the incredibly functional galley with convenient access to the saloon. In the saloon, guests will find wide open spaces and telescopic tables that help convert the area from a comfy lounge into a relaxing dining area. Guests will also find roomy sunbeds and tables on the flybridge to sit, lounge, or entertain.

In terms of accommodations and the actual layout of the interior, the Havana 72 is available in three different versions that can be tailored to the buyer’s unique specifications. Spacious cabins are included and the aft portside cabin features a double bed that quickly converts to twin beds if needed.

A large steering wheel, excellent visibility from the helm, and carefully placed navigational instruments all combine to create optimal comfort and ease for the helmsman to guide the Havana 72 effortlessly through the waters.

The Havana 72 will be showcased by Alu Marine at the 2010 Cannes Boat Show from the days of September 8th to the 13th and then again at the 2010 Monaco Yacht Show later on in the month from September 22nd to the 25th.

Specifications of the Havana 72:

LOA: 22.45 m / 73’65” Hull length: 21.30 m / 69’88” LWL: 19.85 m / 65’12” Beam: 11.37 m / 37’30’’ Draft: 1.65 m / 5’41’’ Light displacement: 39.70 t Engine: 2x 230 CV / 2x 230 HP Water capacity: 2,000 l / 454g al Fuel capacity: 3,900 l / 885 gal Mast height over water: 33.27 m / 109’15”

Related links: Alu Marine Berret Racoupeau Yacht Design

Photo: alumarine.fr

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Douce France

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DOUCE FRANCE YACHT CHARTER

42.19m  /  138'5   alu marine   1998 / 2021.

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Cabin Configuration

• 6 Convertible

Special Features:

• Impressive 3,500nm range
• Sleeps 12 guests
• 6.4m/21' Zeplin Semi-Rigid Tender

Luxury charter yacht 'Douce France' is the prime candidate for anyone looking for a taste of the superyacht lifestyle

The 42.2m/138'5" 'Douce France' catamaran yacht built by shipyard Alu Marine is available for charter for up to 12 guests in 6 cabins.

For a luxury yacht charter with a difference, Douce France offers a variety of convivial social and dining options, as well as well laid-out deck areas primed for relaxing and entertaining with family and friends.

Guest Accommodation

Built in 1998, Douce France offers guest accommodation for up to 12 guests in 6 suites comprising a master suite, one VIP cabin, one double cabin and three twin cabins. The bed configuration includes 6 king, 12 singles and 6 convertible. She is also capable of carrying up to 7 crew onboard to ensure a relaxed luxury yacht charter experience.

Onboard Comfort & Entertainment

Douce France benefits from some excellent features to improve your charter, particularly Wi-Fi connectivity, allowing you to stay connected at all times, should you wish. Guests will experience complete comfort while chartering thanks to air conditioning.

Performance & Range

Douce France is built with a aluminium hull and aluminium superstructure. Powered by twin Cummins engines, she comfortably cruises at 11 knots, reaches a maximum speed of 18 knots with a range of up to 3,500 nautical miles from her 20,000 litre fuel tanks at 12 knots.

Onboard Douce France has a range of toys and accessories to keep you and your guests entertained on the water throughout your stay. Principle among these are two Laser Dinghies sailboats to bring out the explorer in you. Also there are waterskis that are hugely entertaining whether you are a beginner or a seasoned pro. Additionally, there are wakeboards so guests can show off at speed. If that isn't enough Douce France also features kayaks, fishing equipment, scuba diving equipment, scooters and snorkelling equipment. Douce France features two tenders, but leading the pack is a 6.4m/21' Zeplin Semi-Rigid Tender to transport you in style.

Book your next the Mediterranean luxury yacht charter aboard Douce France this summer. She is already accepting bookings this winter for cruising in Bermuda and the Caribbean.

Showcasing meticulous craftsmanship coupled with high-end luxurious finishes, catamaran yacht Douce France certainly has the "wow" factor, along with state-of-the-art amenities and array of water toys, promising truly unforgettable yacht charters for even the most discerning guests.

TESTIMONIALS

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Douce France Photos

Amenities & Entertainment

For your relaxation and entertainment Douce France has the following facilities, for more details please speak to your yacht charter broker.

Douce France is reported to be available to Charter with the following recreation facilities:

• 1 x 6.4m  /  21' Zeplin Semi-Rigid Tender with 1 x 150 HP engine
• 1 x Zodiac Tender with 1 x 40 HP engine

For a full list of all available amenities & entertainment facilities, or price to hire additional equipment please contact your broker.

• + shortlist

For a full list of all available amenities & entertainment facilities, or price to hire additional equipment please contact your broker.

'Douce France' Charter Rates & Destinations

Summer Season

May - September

€99,500 p/week + expenses Approx $110,500

High Season

€115,000 p/week + expenses Approx $128,000

Cruising Regions

Mediterranean Croatia, France, Greece, Italy, Malta, Monaco, Montenegro, Turkey

HOT SPOTS:   Amalfi Coast, Corsica, French Riviera, Ibiza, Mykonos, Sardinia, The Balearics

Winter Season

October - April

Bermuda Caribbean Antigua, Bahamas, Cuba, Saint Martin, St Barts Central America Belize, Costa Rica, Mexico

HOT SPOTS:   Florida, Virgin Islands

This yacht is available for Corporate Yacht Charter and Events

Charter Douce France

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84.5′ Glacier & Wildlife Tour Vessel for Phillips Cruises

52′ Research Vessel for NOAA Gray’s Reef National Marine Sanctuary

50′ Hawaii Dolphin Tour Vessel

68.5′ Research Vessel for the University of Hawai’i at Mañoa

73′ Hydrographic Survey Vessel for NV5-Geodynamics

77′ High-Speed Catamaran: The Puget Sound Express Swiftsure

73′ Research Vessel for Bluetide Puerto Rico

70′ Hydrogen Fuel Cell Passenger Ferry for SWITCH Maritime

50′ Research Vessel for NOAA OCNMS

Twin 87′ Glacier & Wildlife Tour Vessels

Built for a lifetime

Aluminum boats built with every detail engineered, designed, and executed with dedication. ACI Boats builds welded aluminum catamarans and monohulls for recreational and commercial use. Our boats are built to last a lifetime.  

We are founded on generations of boat building experience. ACI Boats is owned and operated by Cory Armstrong, and backed by a team of skilled craftsmen and women. When choosing a boat builder, quality and trust is everything– ACI boats delivers with a safe, and comfortable vessel that you can rely on.

Pybus Point Lodge is proud to announce the official launching of two brand new, catamaran style, fishing and touring boats from ACI Boats. This is the second time we’ve had the pleasure of working with ACI and once again, they exceeded our expectations. Since we run a premium fishing and adventure lodge, we don’t just have to worry about our boats being safe and functional–we also have to make sure that our boats have the style and comfort that our guests expect.

ACI Boats is thrilled to announce the official award of a $3 million dollar contract with American Samoa’s Departmant of Commerce for four “Super Alia” commercial fishing vessels. All four boats will be manufactured at ACI Boats’ facility in Port Townsend, WA. The vessels themselves will be 38’x14’ semi-displacement catamarans, designed by ACI Boats and Coastwise Marine Design. The first of the four vessels, to be completed in Fall/Winter 2022, will be used as a training platform for boat owners, captains, and deckhands. The following three boats, will be completed over the course of 18 months and will then be available for lease by the American Samoa Dept. of Commerce, intended to support the growth and safety of the local fishing fleet.

ACI Boats launches it’s first CatLander in it’s line of CatLander landing crafts. Built for the Jamestown Sklallam tribe in Washington State, the CatLander7500 will be used as a spill response support vessel by the tribe.

The best heavy gauge aluminum catamaran in it’s class!

• LENGTH OVERALL : 30′ Without Motors / Bow Pulpit
• HULL ENTRY : 50°
• TRANSOM DEADRISE : 16°
• BEAM : 11′
• BOTTOM : 107″
• TRANSOM : .250
• SIDES : 59″
• FUEL CAPACITY : 240 gallons
• DRY WEIGHT : 8920 lbs. Without Motors
• MAX HORSEPOWER : 600 hp.

• Reverse pilothouse Windshield Design
• Offshore Motor Bracket With Full Length Swim Step Platform and Welded Aluminum drain plugs
• Stainless Steel Fasteners Throughout
• Welded Bow Eye and Transform Eyes
• Welded Rope Cleats
• Over-built one piece, 3/8 thicker keel bar for superior keel strength, weld protection and boat life
• Limited lifetime hull warranty to the original purchaser
• High duality marine paint interior with clear coat, one color matching exterior marine paint with clear coat.
• Fully Welded Alaskan Bulkhead (optional)
• Sliding Cabin door
• Optional side entry sliding door
• Reversed Chines
• Welded self bailing deck
• Instrument panel with easy wiring access
• spare switches wired into the circuit breaker
• Aft battery tray with 3-way battery switch
• Navigation /Anchor lights
• High capacity bilge pump W/ float switch
• 12V Electrical outlet on dash
• Reversed windshield for superior visibility and increase room
• 360 degree walk around cabin design
• Large, oversized transform fish box (optional)
• (2) Large in deck fish boxes
• Walk through transform door
• Non extruded build, plate-plate Welded construction
• Full length side trays
• Cuddy area for marine head and storage

Catmar Explorer® 55 Power

An ideal ocean-going explorer power catamaran for worldwide blue water cruising and circumnavigation.

The hulls, deck, deckhouse and the entire structure are made of certified aluminium. Safe, strong, reliable and robust!

The result is a stable, homogeneous and torsion-resistant structure without the annoying creaking noises that can occur with GRP constructions or mixed forms - such as hulls made of aluminium, deck and superstructure made of GRP - in rough seas.

Catamaris ®  is committed to environmental friendliness and sustainability. Numerous building components can be recycled and reused in an environmentally friendly way, see below.Built in our shipyard in Holland.

Description

Perfectly designed for a small crew, e.g. for a couple, even with children or occasional guests. 

The flybridge with 30 sqm offers space for relaxing and dining and an outside steering position. For bad weather, the comfortable inside steering position is a safe place. Also available in a well thought out layout for wheelchair users.

The yacht is built from class 5083 H 321/H111 aluminum, which is certified by "Germanischer Lloyd, Bureau Veritas or Lloyd's Register". Our Explorer catamarans are equipped with bow reinforcements and crash boxes with watertight bulkheads.  More about the advantages of aluminium .

Strong highly effective foam insulation throughout the interior provides protection against heat and cold and contributes to a pleasant interior climate.  

Available with conventional diesel engines or with the innovative electric hybrid system "Green Eco Power Supply".

With the optional extra fuel tanks, transatlantic range is possible at Eco-Speed.

At 174.20 sqm, the Catmar Explorer 55 Power offers particularly large living/usable areas. Headroom in the saloon 2.10 m, in the hulls 2.05 m. CE Certification Category A with 12 persons.

Optionally available reinforcements, approx. 30 cm above and below each of the 4 waterlines, provide increased protection against containers, flotsam and ice in Arctic waters.

Design according to your preferences

The design of the Catmar Explorer 55 Power can be customised to your individual requirements in terms of the flybridge design, the number, layout and design of the cabins, the saloon, the interior fittings, the furnishings, ceilings and walls as well as the entire technical equipment.

Alternatively, a completely new "full custom" design is also possible according to your preferences and ideas.

The designing and construction costs are comparable to those of some semi-custom manufacturers. However, with Catamaris® there are no restrictions on the realisation of your ideas and desires thanks to the "full-custom" construction method.

In the final result, every customer gets his Catmar Explorer® catamaran exactly as he wants it!

Manufacturing your yacht

Under the constant supervision of Catamaris®, your CATMAR EXPLORER 55 Power catamaran will be built at our partner Dijkstra Jachtbouw B.V. shipyard in Harlingen on the Wadden Sea in Holland, which has many years of experience in building multihulls. Dijkstra is certified by "Germanischer Lloyd" and "Bureau Veritas" and has already built more than 180 aluminium catamaran yachts and commercial vessels.

Technical Specifications

Side view of the CATMAR EXPLORER 55 Power

Layouts of the CATMAR EXPLORER 55 Power

Sustainable and eco-friendly

Catamaris ®  commitment to the sustainable reduction of its carbon footprint focuses in particular on the materials used. These components can be recycled and reused in an environmentally friendly way:

• Hulls and superstructure built of certified aluminium
• All components made of stainless steel (Inox)
• Engines, gearboxes, shafts, propellers, generators, water makers
• Cork for deck coverings
• Furniture construction, upholstery, safety glazing of the windows, fireproof insulation of aluminium hulls und superstructure

Catamaris ®  also makes a significant contribution to reducing CO2 emissions during operation.On Catamaris ®  catamarans, these components reduce CO2 emissions:

• Engines, gensets and equipment that meet the high EU standards in terms of CO2 emissions, for example.
• With our optional diesel-electric hybrid propulsion systems, a further significant reduction of CO2 emissions into the environment is achieved.

With a sustainable and environmentally friendly Catamaris ®  catamaran, you can make a positive contribution to reducing your carbon footprint.

Featured Yachts

FAR NIENTE | From US$ 125,000/wk

Yacht events & boat shows.

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Alu marine news.

IY&A Awards 2013 Finalists: Alu ...

• Yacht builders & designers >

Alu Marine, a premier yacht building company that was created in 1986, creating bespoke high-end Alu Marine yachts, motoryachts, sailing yachts and high-performance catamarans. It is also a leading manufacturer of industrial and commercial grade aluminium ocean vessels, including passenger ships and ferries, docking boats and barges. There are a number of outstanding Alu Marine charter yachts available for boat rental around the world, with a few of them listed below. For more information and a list of luxury charter yachts that suite your requirements and style, please contact our experienced and professional charter brokers.

The French yacht builder and an active member of Super Yacht France and FIN, is a well-known player in the pleasure yacht and superyacht segments of the industry. Alu Marine employs an experienced and highly-skilled team of craftsmen who are committed to provide the necessary services and expertise in various aspects of the yacht construction project. It also provides regular updates to its clients right up to the projects’ completion and delivery of the newly-built motoryacht or superyacht. In addition to this, the company also performs regular maintenance and refit services to a broad range of clients. 

42m Catamaran Dounce France by Alu Marine

Alu Marine in Focus

Since its establishment in 1986, the company was able to complete a diverse set of yacht construction projects, and all of motoryachts and sailing yachts constructed in its facility are still operating in various parts of the globe. The key reasons why high performance yachts and superyachts constructed by Alu Marine yacht builder are highly in demand are their proven stability, durability and comfort. 

Alu Marine is supported by highly qualified and experienced team of designers, architects and engineers and specialises in the construction of one-off single-hull and multi-hull yachts. Its construction team is able to adapt to the needs and preferences of their clients, whilst managing a wide range of projects involving power cruisers and sailing yachts. The company is committed to delivering to its clients newly-built luxury yachts and superyachts that meet the highest standards of performance, reliability and safety. 

Whilst the main specialisation of Alu Marine is in the construction of sailing yachts and motoryachts with aluminium hull, the company has diversified its core specialties to cope with the rising demand by sailors and professional maritime entities for a wide range of motoryachts and sailing yachts. A significant milestone in the growth and expansion of the company is the construction of super yacht Douce France , which is a high-performance 138-footer catamaran. The catamaran Douce France was hailed by maritime experts as the largest sailing vessel in the world (at the time of her launch). 

Photo 1: Alu Marine catamaran yacht Noah 88 design by Kenzo Takada; Photo 2: Luxury catamaran yacht Noah 70; Photo 3: Luxury power catamaran yacht Panama 62' concept;

A Look at the Major Milestones of Alu Marine

In 1986 there was the growing preference for larger motoryachts and superyachts and an increasing number of yacht builders were channeling their resources and using their expertise in constructing megayachts and large vessels. 

It was during this year that Alu Marine completed their first yacht construction project, the  catamaran Douce France, considered then as the largest luxury catamaran. In 2005, Jean-Claude Borgel got majority control of Alu Marine and gave a fresh direction to the yacht building company.  

It was in 2009 that Alu Marine formally opened its new shipbuilding facility. This ultramodern and high-performance yard increased the production capacity of the company and provided a better working environment for its team of engineers and technical personnel. It was also during this year that Richard Gibeaud was appointed as the company’s general manager. 

2010 was relatively a busy year for Alu Marine. It was during that year that the company launched the biggest industrial-grade barge that was ever constructed by Alu Marine. The company also launched its Havana yacht line, which is a collaborative project between Alu Marine and eminent yacht designer, Berret Racoupeau .  

Alu Marine Charter Yachts

Below is a small selection of Alu Marine charter yachts available for yacht rental in different charter destination around the world. For more information and a full list of yachts that suits your needs, requirements and style, please, contact our professional and experienced charter brokers .  

• Yacht builders & designers
• New Superyachts Launched
• Luxury yacht designers
• Abeking & Rasmussen
• Acico Yachts
• Admiral Yachts
• ADA Yacht Works
• Aegean Yacht
• Alstom Yachts (Aker)
• Alloy Yachts
• Amels Yachts
• AM Shipyard Yachts
• Atollvic Shipyard Yachts
• Arcadia Yachts
• Azimut Yachts
• Baia Yachts
• Baglietto Yachts
• Baltic Yachts
• Bilgin Yachts
• Blohm & Voss Yachts
• Bloemsma Van Breemen
• Burger Yachts
• Cantieri di Pisa Yachts
• Carbon Ocean Yachts
• Cheoy Lee Yachts
• Christensen Yachts
• Claasen Shipyards
• Cobra Yacht
• Codecasa Yachts
• Couach Yachts
• Damen Yachts
• Danish Yachts
• Delta Marine
• Derecktor Yachts
• Devonport Yachts
• Dominator Yachts
• Dream Ship Victory
• Dubois Yachts
• Dunya Yachts
• Ferretti Yachts
• Fincantieri Yachts
• Filippetti Yachts
• Fountaine Pajot
• Hakvoort Yachts
• Hargrave Custom Yachts
• Hatteras Yachts
• Heesen Yachts
• Horizon Yachts
• Holland Jachtbouw
• Icon Yachts
• Jongert Yachts
• Leopard Yachts
• Mangusta (Overmarine)
• Marco Yachts
• Mondo Marine Yachts
• Moonen Yachts
• Mulder Shipyard
• Nautor's Swan
• Nobiskrug Yachts
• Oyster Yachts
• Palmer Johnson Yachts
• Pendennis Yachts
• Perini Navi
• Princess Yachts
• Turquoise Yachts
• Rossinavi Yachts
• Royal Denship
• Royal Huisman Yachts
• Sanlorenzo Yachts
• Silver Yachts
• Southern Wind Yachts
• Sunreef Yachts For Charter
• Sunseeker Yachts
• Timmerman Yachts
• Trinity Yachts
• Wally Yachts
• Recent Launches
• Yaretti Yachts

Quick Enquiry

Douce france | from eur€ 95,000/wk.

JAIPUR | From EUR€ 11,000/wk

Alu Marine Superyacht News

Alu Marine’s luxury catamaran yachts ...

Video of the 42m Alu Marine luxury ...

Spectacular and timeless charter ...

CHE 35m sailing catamaran yacht for sale

Overall information

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Yachts by Sunreef Yachts

Yachts sale Sunreef Yachts

CHE is unique fully custom built aluminium sailing catamaran, having the length of 35m - she is the second largest catamaran in the world. She really sails and has limitless range, she boasts graceful exterior lines and spacious guest areas inside and outside.

A Guide to Understanding Marine Grade Aluminum 

The corrosive nature of water and saltwater dictates the use of special materials for shipbuilding, off-shore drilling platforms, and more. Due to its many beneficial properties, marine-grade aluminum is eminently suitable for building seafaring vessels and structures, as well as the machinery and components used within them.

What is Marine-Grade Aluminum?

Even though pure aluminum has a high natural resistance to corrosion compared to many other metals, the constant exposure to water and moisture in marine applications warrants additional protection. When alloyed with other metals like magnesium, aluminum develops an even higher level of corrosion resistance that can tolerate constant contact with water and saltwater. These specially treated aluminum alloys are known as marine-grade aluminum.

What are the Benefits of Using Aluminum in Marine Applications?

Marine-grade aluminum is specifically developed to make it ideal for use in marine environments. As such, it possesses a number of properties required in these applications. Some of these properties include:

• Superior corrosion resistance
• Lightweight with a high strength-to-weight ratio
• Compatibility with a variety of fabrication processes
• Wide availability in sheets, extrusions, and plates

Properties of Aluminum for Marine Applications

There are many grades of marine aluminum, each differing slightly in its properties due to the alloy materials that are included.

Continental Steel supplies several grades of marine aluminum in a variety of stock forms, including plate, sheet, coil, pipe, tube, bars, and extrusions We can also provide them with varying degrees of temper. The grades we can provide include: 

• 5083.  5083 marine-grade aluminum is ideal for applications that need superlative corrosion resistance in hostile environments. 5083 is the strongest non-heat treatable aluminum alloy and maintains its strength even after welding.
• 5086.  This alloy is highly conductive with superior corrosion resistance. 5086 can be strengthened through strain hardening and cold working until it is even stronger than in 5083. Though compatible with multiple welding methods, electric arc welding is preferred for this alloy.
• 5454.  The beneficial properties of 5454 include high strength, superior corrosion resistance, and good formability and weldability. 
• 5456.  Widely used for structural applications, 5456 is well-suited to the extrusion process. It is also amenable to forming operations like rolling and forging. 5456 can be made stronger through cold working, but the process reduces its ductility.
• 5754.  Its superior resistance to corrosion makes 5754 very suitable for the marine industry and other industrial applications possessing corrosive operating environments. It is also suitable for flooring applications due to its high strength.

Aluminum Products for Marine Applications

Marine aluminum is used to make a wide variety of marine products. Two of these include honeycomb panels and metal powder. 

Honeycomb panels   are composite products inspired by the structure of honeycombs in bee colonies. A honeycomb panel consists of a core layer of hexagonal honeycomb fabricated with aluminum. The core is sandwiched between two aluminum plates glued to either side. This structure can be fabricated with various thicknesses. 

Honeycomb panels have the following beneficial properties:

• High rigidity, strength, and vibration damping
• High resistance to impacts
• Good insulation from heat and sound
• Good pliability

Since the honeycomb panel requires a smaller quantity of aluminum than a solid sheet of comparable mechanical properties and thickness, it is more cost-effective than aluminum panels. It’s lighter weight also saves on shipping costs for bulk orders. Like all aluminum, honeycomb panels can be infinitely recycled.

Aluminum metal powders are used in a variety of industries, including the marine industry. These fine particles of aluminum are used in many manufacturing techniques, such as aluminum injection molding, surface coating, and additive manufacturing.

Marine Grade Aluminum From Continental Steel

Continental Steel is an ISO 9001:2015-certified supplier and distributor of high-quality specialty metals, including marine aluminum. We provide these value-added services for all grades of aluminum to facilitate one-stop shopping for our customers:

• Chemical milling
• Deep hole drilling
• Perforating

Please contact us or  request a quote for more information about our marine-grade aluminum supply and capabilities.

Get In Touch With Our Team

For Urgent Inquires Please Contact 855.954.5086

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The Mother of All Maritime Links

John's nautical links list, page 31 of 47.

New or Changed Links

Multihulls:

• 2Hulls Inc. (Catamaran, power catamaran & trimaran broker dealers, Fort Lauderdale, Florida)
• Building the Aluminum Catamarans Osram VII and Osram VIII
• Advanced Multihull Designs (AMD, high speed passenger and vehicle ferries)
• African Cats (Builder of cruising sail and power catamarans, Amstelveen, the Netherlands)
• All American Marine (Aluminum Teknicraft catamaran work, passenger and pleasure motorboats, Bellingham, Washington)
• Alwoplast (Builder of large sail/power multihulls, repairs, Valdivia, Chile)
• AmeraCat Custom Catamarans (Builder of commercial or recreational offshore fishing catamarans, Ft. Pierce, Florida)
• American Proas, 1898-1998
• American Sail (Builder of Aqua Cat catamarans, Charleston, South Carolina)
• Aquidneck Custom Boat Builders (Construction, repair and refit of multihulls to 30' beam, composite or other materials, fabrication of composite components, Bristol, Rhode Island)
• The Arctic Ant Aeroboat (Amphibious tetramaran airboat for Arctic conditions, "Don't let the Arctic conditions stop you from doing what the Titanic couldn't, there are no weather conditions unaccessible for the Arctic Ant ," Larsmo, Finland)
• Aspen Power Catamarans (28-40', Burlington, Washington)
• Austal Group (Builder of aluminium vessels including fast ferries, patrol boats, cruise and live-aboard vessels and private motor yachts, Henderson, Western Australia)
• The Austin Outrigger Canoe Club (Lady Bird Lake, Texas)
• Aventure Catamarans (Power and sailing catamarans, Monaco)
• Bailey Custom Boats (Wooden pontoon boats, Statesboro, Georgia)
• Bell Composites, Inc. (Builder of Offshore Catamarans, Powercat motor catamarans, outrigger canoes, Jupiter, Florida)
• Bennington Pontoon Boats
• BoatSmith (Builder of cruising catamarans, West Palm Beach, Florida)
• The British A Class Catamaran Association
• The British Columbia Multihull Society (BCMS)
• Build a Catamaran (Catamaran building logs)
• Building a Woods design Pixie Catamaran in Uruguay (Jeremy Bernal builds a beach cat)
• The Canadian Dart Association (18' catamaran)
• The Canadian Sea Spray Association
• The Catamaran Company (New and used catamarans, sailing vacations, and catamaran services, Fort Lauderdale, Florida)
• Catamaran Cruisers (Fiberglass catamaran houseboats, Columbia, Tennessee)
• The Catamaran Racing Association of Michigan (CRAM)
• Catamaran Sailor Magazine ( ("A NEWSpaper that covers any and all news concerning beach cats")
• The Catapult Inflatable Catamaran Class Association
• C-Dory (Builder of TomCat � power catamarans, Auburn, Washington)
• Choy Designs (Multihull luxury yachts)
• Chris White Designs (Cruising multihulls)
• Coast Catamarans (Developer of the Coast 50 akuminum cruising catamaran, Marseille)
• Corsair Marine, Inc. (Ian Farrier-designed folding, trailerable trimarans, Ho Chi Minh City, Vietnam)
• Custom Fiberglass International (CFI, builder Isotope and Cheshire sailing catamarans, Durham, North Carolina)
• Cypress Cay Pontoons (Custom, luxury and fishing pontoon boats, Fort Wayne, Indiana)
• Dick Newick (Trimaran, catamaran & proa designs)
• The Dick Newick Proa Cheers (Third in the 1968 Transat)
• Dragonfly Sailboats (Folding trimarans 6-12 meters, Fredericia, Denmark)
• ElectraCraft (Builder of electric powered launches and pontoon boats, Westlake Village, California)
• Endeavour Catamaran Corporation (Cruising catamarans, Clearwater, Florida)
• Eric Henseval Yacht Design (Sailing multihulls, France)
• Far East Boats (Manufacturer of sailing multihulls, Jiangsu, China)
• The Farrier/Corsair Trimaran Discussion Group (Discussion of the multihull sailboats designed by Ian Farrier)
• Farrier Marine Inc. (Ian Farrier multihull designs)
• FishCraft (Builder of inflatable drift catamarans, Sisters, Oregon)
• Flaquita (Tacking proa for homebuilders designed by Joe Henry)
• Flats � Cat (Rough water-shallow water power catamaran)
• The Flying Proa (Article by William Alden from Harper's New Monthly Magazine , 1877?)
• Fritz Koschmann's Bolger Double Eagle (Building a catamaran eco-tour boat)
• Fulcrum Speedworks (Builder of UFO foiling sailing catamarans, East Providence, Rhode island.)
• Fusion Catamarans (Kits for 40' composite sail and power catamarans, Australia & Thailand)
• Gary Dierking's Outrigger Sailing Canoes Blog (Photos, drawings, and descriptions of outrigger canoes around the world, Gary's outrigger sailing canoe plans)
• The Gemini Catamaran Owners Association
• Gemini Catamarans (Cruising catamarans, Annapolis, Maryland)
• Godfrey Pontoon Boats
• Grabner (Maker of Happy Cat inflatable sailing catamarans, Haag, Austria)
• Grainger Designs (Raku sailing catamarans, Sensori power catamarans, custom and racing designs)
• Great Lakes Watercraft (Maker of MiniCat inflatable sailing catamarans, Takacat inflatable catamarans, Detroit, Michigan and Windsor, Ontario)
• Green Dream Boats (Builder of Solliner solar catamarans, Gdynia, Poland)
• Gunboat Multihulls (Manufacturer of large sailing catamarans, Wareham, Massachusetts)
• Harris FloteBote Pontoon Boats (Fort Wayne, Indiana)
• Harryproa (Plans, kits & professionally built Harry, Harrigami & Visionarry cruising proas designed by Rob Denney, Australia)
• Hartley Multihull Designs (Sailing catamaran and trimaran plans for amateur builders, New Plymouth, New Zealand)
• Harvey Golden's Thamakau Project (A skin-on-frame Fijian sailing proa)
• The Hawaiian Sailing Canoe Association (HSCA, information and education on the culture of the Hawaiian sailing canoe)
• Henny van Oortmarssen Homebuilding the F-39 Trimaran Fram in the Netherlands
• Hobie (Manufacturer of sailing catamarans and trimarans)
• Hoewa�a Dallas Outrigger Canoe Club (Texas)
• Holopuni Canoes (Maker of paddling and sailing Hawaiian outrigger canoes, Tahoe City, California)
• How to Build a Timber Outrigger Canoe (FAO online pamphlet)
• Hydro Bikes (Pedal powered catamarans)
• l'Hydropt�re (Speed record setting hydrofoil trimaran)
• Incat Australia (Builder of wave piercing and conventional catamaran ferries)
• The International A Division Catamaran Association
• The International Small Catamaran Handicap Rating System (SCHRS)
• The International Tornado Association
• The James Dory Page (Building a Kurt Hughes 30' Cruising Catamaran)
• James Wharram Designs
• The Jarcat Catamarans Discussion Group
• John Shuttleworth Yacht Designs Ltd. (Multihulls, power and sail)
• Jutson Marine Design (Power catamarans, multihull sailboats, Vancouver, British Columbia)
• K-designs (Bernd Kohler's wing in ground effect and multihull vessels)
• Kelsall Catamarans (Designs 18-75')
• The Kent Island Outrigger Canoe Club
• Kevlacat Power Catamarans (Buddina, Queensland)
• Kha Shing Enterprise (KSE, builder of Montefino catamaran motor yachts, Kaohsiung City, Taiwan)
• Kiribati Canoes (Proas)
• The Koehler Multihulls Discussion Group
• Kurt Hughes Sailing Designs (Catamarans and trimarans)
• Lagoon (Builder of luxury sailing catamarans, Bordeaux Cedex, France)
• LeisureCat & AussieCat (LeisureCat power catamarans, marketed in America as AussieCats, Bibra Lake, Western Australia)
• Maine Cat Catamarans (Builder of cruising sail catamarans, Bremen, Maine)
• Manitou Boats (Aluminum trimaran pontoon boats, Lansing, Michigan)
• Mehrrumpfboote (A German catamaran, trimaran & proa site)
• Metz Boats (Small multihull designs and kits by Klaus Metz, Munich, Bavaria)
• Michael Kabua's Riwuit (Toy sailing proa that won the Marshall Islands Independence Day race in 2000)
• The Microship Project (A trailerable cruising trimaran)
• Mike Waller Yacht Design (Stock and custom multihull designs, Australia)
• Mr. Smith's Amazing Sailboats (The high-speed hydrofoil and multihull designs of Bernard Smith: Aerohydrofoils, Monomarans, Fliptackers and Sailloons)
• The Multihull Association of South Florida (MASF)
• The Multihull Boatbuilder Page (A free exchange of building and design information for simple, efficient, economic homebuilt multihulls)
• The Multihull Centre (Multihull building and repairs, Millbrook, Cornwall)
• The Multihull.com Forums (Discusions on everything multihulls plus sailing meetings devoted to multihulls)
• Multihulls Magazine
• Multihull World ("Australasia's multihull magazine")
• MultiMarine (Used multihulls, multihull designs by Michael Leneman, Venice, California)
• Multi Winds International (Maker of the �lan � trailerable trimaran and Extreme � catamarans)
• M. u. H. von der Linden GmbH (Kits for Grainger and Schionning sailing catamarans, Schionning power catamarans, Wesel, Germany)
• The National Mosquito Catamaran Council (Australia)
• The New England Multihull Association (NEMA)
• Newick Nautical Designs (Dick Newick, stock and custom multihull designs, Sebastopol, California)
• New Wave Boat Company, Inc. (Maker of the Hydro Bike Explorer pedal catamaran)
• Nichols Brothers Boat Builders (Large power passenger catamarans, Freeland, Washington)
• Nichols Diversified Industries (Custom aluminum and steel power passenger catamarans and trimarans to 65', Freeland, Washington)
• Nickels Boat Works (Manufacturer of WindRider & Astus trimarans, Burton, Michigan)
• Noosa Cat (Power catamarans, Australia)
• The Northwest Multihull Association (NWMA)
• The Northwest Multihull Association Discussion Group (NWMA)
• The Norwegian Multihull Association (Norsk Flerskrog Seilklubb, the national class organisation for multihull sailors, including Hobie Cat)
• The Oahu Hawaiian Canoe Racing Association (OHCRA)
• The Offshore Multihull Association (OMA, promoting offshore multihull classes at racing events around the world)
• On The Wire Back Issues Online (Ezine for Hobie sailors)
• Pacific Proa Company (Flying proas, Sausalito, California)
• Pantawee Marine (Builder of composite multihulls, both power and sail, up to 18 meters, Thailand)
• The Paper Tiger Catamaran International Association
• Paritet Boats (Manufacturer of high speed aluminum power catamarans, Moscow, Russia)
• Pedigree Cats Inc. (Custom multihulls 46-136', Raymond, Washington)
• The Polynesian Catamaran Association (Wharram catamaran admirers club)
• The Polynesian Voyaging Society
• Princecraft Boats (Manufacturer of aluminum pontoon boats, Princeville, Qu�bec)
• ProaBoat ("The web site for proa boat owners, builders, and designers")
• The Proa FAQ
• Proa File (Michael Schacht's online journal "focused on the multihull sailing canoes of the Pacific Islands as object lessons in sustainable design")
• Proa Web Sites (Linklist at Pacific Proa Company)
• ProPhish (Manufacturers of the WaterSkipper inflatable catamaran pedal boat)
• The Queensland Multihull Yacht Club (Brisbane)
• Q-West Boat Builders (Builder of catamaran passenger ferries up to 40m, Wanganui, New Zealand)
• Ranger Boats (Builder of pontoon boats, Flippin, Arkansas)
• Running Tide Yachts, Ltd. (Monohull and multihull designs with a mast-aft sailing rig and a 65' gamefishing sailing catamaran)
• The Sailrocket World Record Speed Sailing Attempt (A British hydrofoil proa)
• The San Francisco Outrigger Canoe Club (SFOCC, Hawaiian outrigger canoeing)
• Scott Brown Mutihulls (Broker specializing in used Wharram catamarans and other multihull sailboats, Landrake, Cornwall)
• SeaCycle (Pedal powered catamarans, Adrian, Michigan)
• The Searunner Design Parnership (John Marples and Jim Brown, cats and tris, sail and power)
• The Searunner Home Page (Fan page for Jim Brown's classic cruising trimarans)
• The Searunner Trimarans Owners' Association
• Sea Speed Aluminium Catamaran Design (Power catamarans, Brisbane, Australia)
• Schionning Designs (Sailing and power mulithull plans and kits, Tea Gardens, New South Wales)
• The Shearwater Catamaran Class Association
• Skinny Hull Magazine (Sailing canoes and kayaks, proas and similar style boats)
• SLO Sail and Canvas (Trampolines for production catamarans, San Luis Obispo, California)
• Small Trimarans (A sailing community for small trimaran enthusiasts)
• Solar Boats (Importer and distributor Solliner solar catamarans, Perth Western Australia)
• South Bay Pontoon Boats (Middlebury, Indiana)
• Starcraft Marine (Manufacturer of pontoon boats, New Paris, Indiana)
• The Stiletto Catamaran Network
• Stiletto Catamarans (Builder of small cruising catamarans, Columbia, North Carolina)
• Still Water Design, Inc. (Ultralight motor catamarans for low wake environments, Chelsea, Massachusetts)
• Sylvan Marine (Maker of aluminum pontoon boats, New Paris, Indiana)
• Taipan America (Taipan and Boyer A-Class catamaran dealer)
• The Taipan Catamaran Association Of Australia
• Taylor Pacific Proa - An Experiment in Variable Geometry (Designs by Douglas Taylor)
• Team Scarab Multihulls (Sailing trimaran plans by Ray Kendrick, Australia)
• Technicomposit (Builder of high perfpormance composite multhulls, Antibes, France)
• The Texas Outrigger Canoe Club (Surfside Beach, Texas)
• Tiny Dancer (21' windsurfer rigged proa by Ted Warren)
• TomCat Boats (Daysailing and sport cruising catamarans, Newmarket, Ontario)
• Tony Bigras' Cruising Catamaran Page
• The Toronto Multihull Cruising Club
• The Traverse Bay Outrigger Canoe Club (Traverse City, Michigan)
• U-Fab Pontoon Boat Kits (Pontoon boats, houseboats and floating docks, Ottawa, Ontario)
• The Unicorn Catamaran Class Association
• The US A-Class Catamaran Association
• The US Formula 18 Class Association
• Warren Multihull Designs (Ted Warren)
• WaveWalk, Inc. (Builder of paddled catamarans, Sharon, Massachusetts)
• The West River Catamaran Racing Association (WRCRA, weekly catamaran racing in Galesville, Maryland and on the Chesapeake)
• Weta Marine (Builder of sailing trimarans, North Shore City, New Zealand)
• Wharram Builders and Friends (A photo & discussion forum for Wharram design enthusiasts)
• Whitacre Catamarans (Semi-custom performance cruising sailing catamarans, Anacortes, Washington)
• The Windrider Trimaran Forum
• Woods Designs (Sailing catamaran plans for home and professional builders by Richard Woods)
• WorldCat (Builder of WorldCat, Glacier Bay Edition and Livingston power catamarans, Tarboro, North Carolina)

Did Bayesian superyacht’s 237ft mast cause it to sink?

B ayesian’s 237ft metal mast may have played a part in the sinking of the superyacht off the coast of Sicily , experts have suggested.

The yacht, named after the mathematical theory Mike Lynch used to make his millions in the tech industry, foundered in the small hours of Monday morning.

Key among potential reasons for the loss of the vessel will be its most striking feature – the aluminium mast.

Four British personnel from the Marine Accident Investigation Branch are on their way to Palermo to carry out a preliminary assessment.

There are also theories that hot overnight temperatures of 27C (80C) could have prompted passengers to leave portholes and windows open – hastening the sinking when the high winds hit.

Launched in 2008 by Perini Navi, Bayesian is one of the 50 largest sailing yachts in the world and her mammoth mast supported a total sail area of almost 32,000 sq ft.

Bayesian had the tallest aluminium mast in the world when it first took to the seas under her former name Salute. The record was overtaken last year when Jeff Bezos, the Amazon billionaire launched his yacht, Koru.

Koru’s masts stretch to 278ft tall according to Boat International magazine.

Tom Sharpe, a former Royal Navy commander and warship captain, said initial reports from survivors and witnesses suggested “that the weather was sufficiently violent to cause her to capsize at anchor”.

Weather reports from Palermo airport, 12 miles west of the yacht, suggest that at about 4am, winds switched from a gentle south-westerly breeze to gusts of 40mph, with temperatures dropping.

Local newspapers have described the weather as a tornado and a waterspout, which is a tornado above water.

The pressure of high winds on the mast could have helped tip the boat over in rough seas, experts have suggested.

Mr Sharpe said capsizing seemed “unlikely” to him given the Bayesian’s size “and that boats like that are designed to survive poor weather – unless something failed at the same time like a valve that let water in and made the whole boat unstable”.

He said it was more likely that the Bayesian had “dragged anchor”. Anchors are designed to lodge on rocks on the seabed, but if the seabed is too soft, or weather is so bad that the anchor is dislodged, then a boat can drag its anchor and drift.

If a boat drifts into an obstruction such as a rock or another boat, this can damage the boat by tearing a hole in its side leading to sinking, Mr Sharpe suggested.

The sea bed off Porticello, the Silician harbour nearest to where Bayesian was moored for the night, consists of a mixture of rocky and muddy areas, according to nautical charts reviewed by The Telegraph.

This means the yacht could have dragged anchor if it had been lowered into a soft, muddy patch of seabed.

A captain of another boat anchored nearby said his vessel was hit by abnormally strong winds on Monday morning.

Karsten Borner said the Sir Robert BP was battered by strong gusts in the early hours of the morning but he managed to stabilise the vessel while anchored by using the engine.

He said as they were doing this, they noticed the Bayesian nearby and manoeuvred to avoid hitting it.

“We managed to keep the ship in position, and after the storm was over, we noticed that the ship behind us was gone,” said Capt Borner.

Mr Sharpe said: “From a seamanship point of view, the other boat (Sir Robert BP) coming up on her main engines and using those to keep position around [her own] anchor is what you should do. Yacht anchors are often not that robust and that is the best way to avoid putting too much strain on it and/or dragging.”

An alternative theory is that the weight of the mast led the Bayesian to capsize.

A yacht industry source told The Times that the vessel sank after the weight of her mast took the hull beyond its “down-flooding angle” – the point at which a boat cannot right itself after swinging at a steep angle – meaning water rushed over the sides into the interior.

“The wind toppled the mast, which fell over the side, causing the boat to heel over and take on water, capsize and sink very quickly,” the source said.

This can occur whether the mast snapped off or not.

Sam Jefferson, editor of Sailing Today, told The Telegraph: “She has a very tall, aluminium mast – I believe it is the second tallest aluminium mast in the world – and that would not have helped.

“Many yachts with big masts have carbon masts instead of aluminium as these save on weight and improve stability and performance.

“Stability was obviously the problem in the extremely strong winds she was experiencing and I’d assume the boat was pinned on its side and could not right before it filled up with water.”

Another superyacht expert who asked not to be named told The Telegraph that the mast could have pulled the Bayesian over into capsizing, although he expressed some scepticism, saying sailing yachts are designed to prevent that from happening.

He said the anchor-dragging theory was also a plausible explanation for why the Bayesian sank.

Typically, crews try to anchor in safe spots that are sheltered away from the wind, they said.

The Bayesian was moored just off Porticello, a few miles east of Palermo. Prevailing winds from the north-east may have robbed the vessel of the shelter offered by the Sicilian coast, which lay to the west.

Dr Lynch was reportedly aboard the vessel. His wife, Angela Bacares, is among those rescued but six others, including four Britons, are still missing.

One person, reportedly the yacht’s chef, died in the incident and his body was recovered by rescuers.

The Bayesian’s last refit was in 2020.

The vessel was listed for rent for up to €195,000 (£166,000) a week, according to online charter websites.

The interior featured six cabins – one master, three doubles and two twin rooms – for up to a dozen guests, with the crew occupying separate quarters.

Fitted out in a Japanese style, the interior was styled by the Remi Tessler design house.

Under her former name Salute, the yacht won the Best Exterior prize at the World Superyacht Awards in 2009, and the Best Interior at the International Superyacht Society Awards in 2008.

A coastguard statement issued on Monday morning said the missing passengers were of “British, American and Canadian nationality”.

Camper & Nicholsons, managers of the Bayesian, confirmed the vessel sank at about 4.30am following “severe weather”.

The Italian Coast Guard is leading search and rescue operations, and said on Monday it had safely recovered 15 individuals.

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Morgan Stanley Chief Jonathan Bloomer Also On Sunken Bayesian Yacht With Michael Lynch

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The chairman of Morgan Stanley International was reportedly among the six missing people—including UK tech mogul Michael Lynch— after the 184-foot luxury sailing yacht Bayesian sank in rough seas near Sicily early Monday morning, according to new reports.

Italian emergency services headed out to sea towards the area off the Sicilian coast on Tuesday, ... [+] Aug. 20, 2024.

Lynch , a British tech entrepreneur and one-time billionaire, and his 18-year-old daughter Hannah Lynch are confirmed to be among those still missing after the ship sank (his wife, Angela Bacares, was rescued).

Jonathan Bloomer, chairman of the Morgan Stanley International bank and insurance company Hiscox, is also reportedly among the missing along with his wife, Judy.

Authorities on Monday told the BBC the missing people are presumed to still be inside the boat, and rescue operations resumed Tuesday morning.

The vessel had 22 people on board — 10 crew and 12 passengers — including people from the United States, Britain and Canada, when it overturned at around 5 a.m. Monday, according to the Italian coast guard.

Fifteen people were rescued from the vessel (including a 1-year-old girl), one person was found dead and six, including two Americans , remain missing, according to multiple reports.

Local media reported the person who died was a member of the crew, thought to be the yacht’s chef .

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Who Are The Missing People Aboard The Bayesian Yacht?

Lynch, 59, and his daughter were the first to be reported as among the missing. Lynch's lawyer Chris Morvillo, a former assistant U.S. Attorney for the Southern District of New York, has also not been found, nor has his wife and jewelry designer Neda Morvillo. Bloomer, 70, a close friend of Lynch's, is also missing along with his wife, Judy.

Key Background

The Bayesian was anchored near the port of Porticello overnight Sunday when a harsh storm hit the coast that included a " waterspout ," a tornado-like swirling column of air and water. The ship tipped over and quickly was drug underwater by its massive mast —it had the tallest aluminum mast in the world at 246 feet. Of the 15 people rescued in the aftermath, eight were treated at a local hospital.

Lynch was acquitted in a fraud trial in June after he was accused by Hewlett-Packard of artificially inflating the value of Autonomy before HP bought it for more than $11 billion in 2011. HP wrote off $8.8 million of Autonomy's value within a year of buying the company. Today, The Times estimates Lynch has a net worth of £500 million. He "had a lot of pride" in his yacht, a member of his staff told the U.K. paper, and business filings show the boat is legally owned by his wife, Bacares.

Surprising Fact: Lynch's Co-Defendant Stephen Chamberlain Died The Same Weekend

Stephen Chamberlain, who was acquitted in the same trial as Lynch in June, died hours after news broke of Lynch's disappearance. Chamberlain was hit by a car while jogging in England on Saturday morning and was put on life support before his death was announced late Monday, the Guardian reported . Lynch and Chamberlain were both indicted for conspiracy and wire fraud in the sale of Autonomy to HP before being acquitted.

What To Watch For

An ongoing search operation includes divers attempting to search the vessel, now sitting 160 feet below sea level, as well as rescue boats and helicopters, according to CNN .

$215,000. That's the cost to charter the Bayesian, a single-mast sailing vessel, for one week .

Crucial Quote

“She told me that while they were sleeping, at a certain point the yacht overturned due to the tornado, and they found themselves in the water,” Dr. Domenico Cipolla, head of the emergency room at the pediatric hospital in Palermo, Italy, told The Times . “Some of them immediately managed to get onto the lifeboat. And some, evidently, didn’t make it.”

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Live updates: Seven dead in 56m superyacht Bayesian sinking tragedy

Seven people have died in the Bayesian sinking disaster, according to the BBC. These include the six missing people who were inside the yacht when it sank, as well as a seventh person who was located shortly after the disaster. The seventh person is understood to be the yacht's chef, Recaldo Thomas. The other six are:

• British tech entrepreneur Mike Lynch, once dubbed 'Britain's Bill Gates'
• Lynch's 18-year-old daughter, Hannah
• Morgan Stanley's chairman, Jonathan Bloomer
• Judy Bloomer, wife of Morgan Stanley chairman
• Chris Morvillo, a lawyer working for London-based law firm Clifford Chance
• Neda Morvillo, an American jewellery designer and Chris' wife

It is understood that the yacht was being used to celebrate Lynch's recent victory in a 13-year £8 billion fraud acquittal.

No one remembers the mast snapping before 56m superyacht Bayesian sunk, says crew

No one recalls seeing the mast snap on board the 56-metre Perini Navi sailing yacht Bayesian which sank off the Italian island of Sicily on 19 August. The eyewitness account of a crewmember on board the vessel, which was obtained by BOAT International , said that the boat was struck by a freak weather event which led to the yacht heeling at around 20 degrees to starboard. As crewmembers were securing items, the heeling angle began to increase rapidly until the yacht started taking on water and sank rapidly.

The crewmembers who were up on deck were able to evacuate the yacht with minor injuries. The yacht is understood to have sunk in just twelve minutes, and it is believed that a "major ingress" of water from the top down would have caused the sinking, according to a captain who wishes to remain anonymous. This is based on the fact that no breaches have been reported in the yacht's hull, and the fact that the yacht should have been able to remain afloat with two flooded compartments.

"Very difficult to understand what could have overwhelmed a vessel of that size" says captain of sistership

The captain of the sistership to the sunken 56-metre Perini Navi sailing yacht Bayesian has said it is "very difficult to understand what could have overwhelmed a vessel of that size" and called the 56-metre Perini Navi series "bulletproof".

David Hutchinson, captain of Rosehearty , said he had taken the yacht around the world multiple times and he had "total faith in the boat".  "We've been to Antarctica and Chile, and we've had her in 70 knots of wind," he says, and the vessel had never put them in a situation that felt unmanageable.

However, Hutchinson noted there were differences between Bayesian and Rosehearty ; notably, Bayesian's  74-metre mast, which would have been heavier and added increased windage. The yacht's layout was also different, with guest accommodation on Bayesian located further forward.

Live updates

• A search and rescue for six missing people has concluded. The final missing person is understood to be Hannah Lynch. 
• According to Reuters, six bodies have now been found in the sunken yacht. These include Mike Lynch, a British technology entrepreneur who co-founded Autonomy Corporation and founded Invoke Capital, although Italian authorities have not confirmed this.  
• One person was found immediately after the yacht sunk, and this is understood to be the yacht's chef. 
• Lynch’s wife, Angela Bacares, and a one-year-old are among the fifteen people rescued along with Bayesian' s captain, James Cutfield.
• Another sailing vessel in the area, the 42-metre Sir Robert Baden Powell ,  stepped in to offer assistance in the initial rescue.
• Divers have been able to reach Bayesian' s sunken hull, which lies at 45 metres of depth about half a mile from the coast. The yacht had the largest aluminium masts of any sailing yacht on the water.
• Eyewitnesses in the area reported "hurricane" conditions off the coast but local weather websites did not indicate any severe squall, which suggests that the weather event was not forecast.
• At around 5am local time on 19 August, Bayesian was hit by bad weather and sunk.  The sailing yacht was anchored or idle at the time of the incident.

Built in Italy by renowned builder Perini Navi and delivered in 2008, the yacht's naval architecture was developed by Ron Holland Design while the interior design is by Rémi Tessier . She was formerly known as Salute and was last refitted in 2016. She was listed for sale earlier this year, according to BOATPro . The yacht had accommodation for nine guests and 12 crew.

BOAT International will update the story as it develops.

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Video shows moments before superyacht went down in storm off Sicily

A celebration turned into tragedy for a british tycoon when the storm sank the vessel off sicily. six people remain missing., by henry austin and corky siemaszko | nbc news • published august 21, 2024 • updated on august 21, 2024 at 4:08 pm.

Newly released video captures a luxury superyacht being battered by a violent storm before it suddenly sank off Sicily with 22 people aboard  Monday.

The grainy images obtained by NBC News and other outlets were recorded on closed-circuit television not far from where the Bayesian was anchored,  about a half-mile from the port of Porticello, on Sicily’s northern coast .

The yacht's 250-foot mast, illuminated with lights and lashed by the storm, appears to bend to one side before it finally disappears and is replaced by darkness.

24/7 New York news stream: Watch NBC 4 free wherever you are

The speed with which a yacht built to handle the roughest seas capsized stunned maritime experts.  

“I can’t remember the last time I read about a vessel going down quickly like that, you know, completely capsizing and going down that quickly, a vessel of that nature, a yacht of that size,” said Stephen Richter  of SAR Marine Consulting.

British tech tycoon Mike Lynch and five of the 22 other people who were aboard the 184-foot vessel remain unaccounted for and are believed to be trapped in the Bayesian’s hull, nearly 170 feet underwater.

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Officials confirmed Monday that at least one person, the ship’s cook, had died.  

Missing revealed as divers search superyacht that sank in storm off Sicily

British tech magnate Mike Lynch, 2 US citizens among missing after luxury yacht sinks off Sicily

Superyachts like the Bayesian, which had been available for charters at a rate of $215,000 a week, are designed to stay afloat even as they are taking on water to give the people aboard a chance to escape, Richter said. 

“Boats of this size, they’re taking passengers on an excursion or a holiday,” Richter said. “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.”

Built by Italian shipbuilder Perini Navi in 2008, the U.K.-registered Bayesian could carry 12 guests and a crew of up to 10, according to online specialist yacht sites. Its nearly 250-foot mast is the tallest aluminum sailing mast in the world,  according to  CharterWorld Luxury Yacht Charters. 

On Tuesday, Italian rescue workers  resumed the search for Lynch  and the five other passengers still missing: Lynch’s 18-year-old daughter, Hannah; Morgan Stanley International Chairman Jonathan Bloomer and his wife; and Clifford Chance lawyer Chris Morvillo and his wife.

“The fear is that the bodies got trapped inside the vessel,” Salvatore Cocina, the head of civil protection in Sicily, told Reuters .

The Bayesian is owned by a firm linked to Lynch’s wife, Angela Bacares, who was one of the 15 people rescued Monday after it capsized.

“It’s extremely rare for a boat of this size to sink,” Richter said.

What’s not rare is the kind of storm that sank it , said Simon Boxall, senior lecturer in oceanography at Britain’s University of Southampton.

“People assume the Mediterranean is this rather calm and passive place that never gets storms and always blue skies,” Boxall said. “In fact, you get some quite horrendous storms that are not uncommon at this time of year.”

The president of Italy’s meteorological society has said Monday’s violent storm may have involved a waterspout, essentially a tornado over water, or a downburst, which occurs more frequently but doesn’t involve the rotation of the air.

Luca Mercalli, president of the Italian Meteorology Society, also said recent temperatures may have been a factor. 

“The sea surface temperature around Sicily was around 30 degrees Celsius [86 Fahrenheit], which is almost 3 degrees more than normal,” Mercalli told Reuters. “This creates an enormous source of energy that contributes to these storms.”

The Mediterranean sailing vacation was designed to be a celebration for Lynch, who two months ago was  acquitted by a San Francisco jury of fraud charges  stemming from the 2011 sale of his software company Autonomy to Hewlett-Packard for $11 billion.

Prosecutors alleged that Lynch, dubbed “Britain’s Bill Gates,” and Autonomy’s vice president for finance, Stephen Chamberlain, had padded the firm’s finances ahead of the sale. Lynch’s lawyers argued that HP was so eager to acquire Autonomy that it failed to  adequately check the books .

Lynch had taken Morvill, who was one of his defense attorneys, on the luxury trip. 

Chamberlain was not on the Bayesian.

In what appears to be a tragic coincidence, a  car struck and killed Chamberlain on Saturday as he was jogging in a village about 68 miles north of London, local police said.

“Steve fought successfully to clear his good name at trial earlier this year, and his good name now lives on through his wonderful family,” Chamberlain’s lawyer, Gary Lincenberg, said in a statement .

Henry Austin reported from London and Corky Siemaszko from New York City.

This story first appeared on NBCNews.com . More from NBC News:

• After fully embracing life in a wheelchair, she's riding it straight to the Paralympic Games
• Woman nearly bitten by tiger after climbing over fence at New Jersey zoo
• Nancy Pelosi responds to protesters who interrupt her live interview with Stephen Colbert

This article tagged under:

Classic look hydrofoiling electric boat debuts in Moscow

A team in Russia has developed this sleek hydrofoiling electric boat with a retro-tech classic runabout look, both inside and out.

The boat is called the Molniya – Russian for ‘lightning’ – and uses fixed surface piercing (SP) foils rather than the retractable inverted-T fully submerged (FS) type on boats like the Candela 7 .

The Molniya prototype was built by Artem Markov and a small team he assembled in Moscow. Markov is a graduate of the Moscow Automobile and Road Construction Institute, where he was part of their Formula MADI electric car racing team that competed against other universities from around the world.

Hydrofoiling electric boat idea started in 2016

Like many other electric boat developers he is also a long time sailor and says “ I have never been able to understand what is the beauty of going on motor boats with a lot of vibration and noise. So, I decided I wanted to find a way to transfer the silence and comfort of a sailing yacht to a boat. The idea came to me in 2016, and from that moment I started working on the project .”

He is a big fan of the work that the team at Candela has been doing, and is well versed in their reasonings of why hydrofoiling is the way to reduce drag and increase efficiency and comfort. So he knew foiling was the way to go and began to design his dream boat.

It is one thing to know exactly what one wants, but b udget realities quite often make inventors adapt. So he found a classic fibreglass-and-aluminum hull and went to work redesigning and converting it. The team had to strengthen and reinforce the hull to handle the stresses from the front foils. At the stern of the boat they designed  protruding half-wings that would help lift the boat onto those front SP foils as it accelerated.

80kW motor mounted to stern drive unit 

That gives the 8.9 m • 29 ft boat a cruising speed of about 20 kts • 37 km/h and maximum speed of 36 kts • 66km/h. As for range, the Molniya can go for 135 Nautical miles at 5 kts, 17 Nm at 25 kts and 20 Nm at the top speed. 

For the battery, they have taken stock lithium-ion cells and developed the modules themselves. The size is 160kW and there are some creative and useful ideas incorporated into the charging and battery management systems. One is the ability to connect a warning system to a GPS route so if you are driving at a speed that is taking yo u beyond range of getting back to shore the motor will automatically slow down. When you do get back, a full 0-100% charge takes 3.5 hours and you can check status through SMS.

One of the intriguing things about the Molniya is that all of the electric boat technology has been incorporated into a striking overall retro look. The dashboard looks like it might have been taken from a 1950s luxury car catalogue, but of course the actual meters are all digital. The interior of the entire boat harkens back to an earlier day, appearing ready to whisk 6 passengers off to a swing era supper club.

From prototype to production

Having built and tested the prototype from an existing hull, the goal of Markov and the team is to move to production mode and use the materials he always envisioned in his dream boat. While the aluminum and fibreglass of the original have been useful for testing, speed and range will benefit from materials like much lighter carbon-kevlar.

The adapted stern drive was useful for proving the hydrofoiling electric boat concept, but all of the designers and engineers are keen to see the improved efficiency they will get from a motor, drive and battery system they have designed from scratch for the Molniya. As for the foils themselves, the production model will use lighter, thinner composites instead of stainless steel.

Obviously the spring and summer of 2020 has not provided the best opportunities to introduce the prototype at boat shows and stir up interest with consumers, the trade or investors. It seems, though that the Molniya is the type of boat that should appeal to peopl looking for the same thing Artem wanted for himself: a classic motor boat experience but one that is quiet, odour free…and smooth sailing.

You can find out more on the Molniya website, lightning-foil.com .

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• New French electric rim motor now taking pre-orders
• New Niagara Falls electric ferries have set sail!

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