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How do you judge the success of an ocean cruising yacht? You can tell a lot from where you see them and where you don’t. It’s also instructive to look at the builder’s order book. If you buy one now, how long will you have to wait for delivery? Another indicator is how well (or poorly) they hold their value on the secondhand market. By any of these measures, Neel Trimarans is absolutely nailing it.

You’ll often see Neel tris anchored in remote parts of the Hebrides and far-flung atolls of the South Pacific but they’re rarely seen in crowded, mainstream cruising destinations like the Ionian, the Virgin Islands or the Solent. Depending on which model of Neel tri you want, you’ll probably have to wait at least eight months and possibly up to two years. And a survey of brokerage websites suggests that there isn’t a great deal of difference between the asking price of a two-year-old Neel and the cost of a new one.

Despite the disruptions of the Covid pandemic, the La Rochellebased shipyard is still steadily growing. ‘We built about 30 boats last year,’ says Neel founder Eric Bruneel, ‘and this year we expect to build 45 to 50.’ The latest, smallest model, the Neel 43, is coming off the production line at a rate of one boat every two weeks and demand is still outstripping supply.

That said, due to the shipyard’s recently increased capacity, now is a good time to order a new Neel as the waiting list, at the time of writing, is shorter than it’s been in years.

Neel’s new Leen power tri have the same core values and designer Bernard Nivelt owns one...

Neel’s new Leen power tri have the same core values, and designer Bernard Nivelt owns one…

Neel is one of just a few brands that have carefully positioned themselves between these two extremes. ‘Where other multihulls have to choose between performance and comfort, a Neel combines both,’ says Charline Picon, an Olympic gold medallist the the RS-X class, who knows a thing or two about performance and is Godmother of the Neel 51. ‘We’re definitely performance-oriented but it’s absolutely not about racing,’ says Eric Bruneel, pointing out that while his yachts have performed very well indeed in ocean passage events like the ARC and ARC+, these are competitive cruising rallies rather than races.

Bruneel has a strong personal racing pedigree, having won his class in the 2004 OSTAR and 2005 Fastnet aboard the 50ft Trilogic, which he built himself, plus a second place in the 2006 Route du Rhum and various exploits in bleeding-edge C Class cats. He also has a lifetime of experience at the forefront of multihull production with 27 years at Fountaine-Pajot, including 10 years as managing director, before he left to found his own shipyard. In the decade since the first Neel trimaran sailed out of La Rochelle’s historic harbour, his boats have earned widespread respect among experienced ocean sailors.

So why choose a tri? There are several reasons why three hulls are better than two, especially if you’re sailing offshore. First and foremost: weight distribution, which is far more important in a multihull than a monohull. The central hull of a trimaran is the ideal place to put all the heavy stuff, Bruneel explains, and having a single engine amidships is much better for stability than twin engines at the aft ends of two hulls. ‘It changes everything, all the dynamics – like a skater in a spin, moving her arms in and out to control her speed,’ he says. ‘Catamarans have to carry weight in all four corners and that’s why the motion of a trimaran is better, much softer, at sea.’ The pitching motion is less pronounced when sailing closehauled and on a beam reach there’s less of a tendency for the boat to rock back and forth from hull to hull.

Another advantage is better performance in light airs, Bruneel says, which directly translates to more enjoyment for the owner and crew. The combined wetted surface of a trimaran’s main hull and one float is smaller than the wetted area of a cat with both of its hulls still immersed, and the trimaran is designed to sail with a small amount of heel, rather than bolt upright, which helps the sails hold their shape in very light winds. Also, a single rudder with a simple direct linkage gives a better ‘feel’ to the helm than a twin-rudder setup, particularly upwind, and saves weight in the stern where it has a significant effect on the boat’s fore-and- aft pitching motion.

The front end of a Neel 65’s bridgedeck has two separate lounge seating areas, either side of the yacht’s main nav station.

The front end of a Neel 65’s bridgedeck has two separate lounge seating areas, either side of the yacht’s main nav station.

Neel’s ‘cockloon’, an original concept by Michel Joubert, turns the saloon and cockpit into a single indoor/outdoor space.

Neel’s ‘cockloon’, an original concept by Michel Joubert, turns the saloon and cockpit into a single indoor/outdoor space.

One of the Neel tris’ most useful characteristics is the ability to sail deeper angles downwind than most multihulls

One of the Neel tris’ most useful characteristics is the ability to sail deeper angles downwind than most multihulls

Other key features include a cutter-rigged mast stepped amidships (long before it became fashionable to bring the mast step aft) with a big genoa and a working jib with a much lower centre of effort than the part-furled genoa of a sloop-rigged yacht; plenty of lateral resistance to ensure good upwind VMG – equivalent to a monohull racer-cruiser of similar length in almost any conditions – without needing a daggerboard; and the ability to sail efficiently downwind at deeper angles than most other cruising multihulls can manage, which is a distinct advantage for trade wind sailing.

Exotic materials are used only sparingly in the boats’ construction, for good reason. ‘We use unidirectional carbon only in crucial places like the beams and deck,’ Bruneel explains. ‘For long-distance cruising you don’t want carbon in the hulls because even a small hit can do a lot of damage to the boat, and we don’t need it because our boats are light enough without it.’ A carbon rig with square-top mainsail is available, which gives better performance than the standard alloy rig in light airs, but Bruneel says that in most conditions there isn’t much difference between the two rigs.

Almost all part of the boats, even the interiors, are vacuum-infused GRP foam sandwich using materials that can easily be recycled when the boat eventually reaches the end of its life. Social aspects of sustainability are taken equally seriously and the gender pay gap within the shipyard is actually tilted in favour of female employees. Environmental concerns are paramount even in the new range of Leen motor yachts. ‘I couldn’t ignore that even if I wanted to,’ Bruneel says. ‘My design engineers would simply refuse to produce a dirty boat.’

Andrei Dragos


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The complete list of trimarans.

There is no single trimaran that is best for everyone. Where some prefer luxury cruisers for long trips with family and friends, others might opt for a high performance racing tri for thrilling rides at breakneck speeds. With the recent spike in trimaran popularity, these days there is a perfect tri for every sailor. So to help prospective trimaran owners decide which boat is just right for them, we here at WindRider have put together a comprehensive list of the best trimarans on the market today! Read through for simple at-a-glance trimaran comparisons of boats both big and small, exhilarating and relaxing, and for all price points.

Jump to a specific sailing trimaran: Neel Weta Corsair WindRider Dragonfly Catri Astus Hobie Sea Pearl Farrier Sea Cart Multi 23 Triak SeaRail Warren Lightcraft Diam Radikal Challenger

trimaran eole

Known for their award-winning luxury trimarans,   NEEL   is based in La Rochelle, the capital city of sailing in France. NEEL trimarans are built for fast cruising with an average cruising speed of about 10 knots, and are even configured to facilitate that sustained speed under motor propulsion. The NEEL 45 was notably named Cruising World’s Most Innovative Vessel in 2013, and by all accounts is an easy-to-sail, high performance boat that is just plain fun.

At a glance:

Models: NEEL 45, 65

Length: 45’ – 65’

Cost:   $$$$$

Use: Luxury cruiser

trimaran eole

A fan favorite,   Weta trimarans   are fast, stable, and remarkably easy to rig. This single-sailor tri has a capacity of up to three, and the ease with which it can be transported and stored makes this a great, versatile boat for beginners. The Weta was named Sailing World’s 2010 Boat of the Year, and one ride is enough to know why: simply put, the Weta is an absolute ton of fun to sail regardless of skill level.

Models: Weta

Length: 14’5”

Cost:   $$ $$$

trimaran eole

The high-end   Corsair trimaran   definitely holds its own in the categories of versatility, performance, and convenience. Boasting a rigging time of 30 minutes from trailer to sailor ,   the Corsair 42 – whose convenient folding amas makes trailering possible – is a simple option even for single sailors, though cabin space is suitable for two adults. These boats are wicked fast, capable of reaching speeds of 20+ knots, and were made for skilled sailors seeking solid construction and high performance vessels, not for beginners.

Models: Pulse 600, Sprint 750 MKII, Dash 750 MKII, Corsair 28, Cruze 970, Corsair 37, Corsair 42

Length: 19’8” – 37’

Cost:   $$$$ $

Use: Sports cruisers

trimaran eole

Built for the sailor who wants to maximize the joys of sailing while minimizing any hassle, WindRider trimarans are notoriously fast, very safe, and a blast to sail from start to finish. With several models that can hold between 1 and 6 riders, including adaptive designs to allow participation from sailors of all levels of mobility, there’s something to suit every sailor’s needs. The WindRider 17, an exhilarating ride perfect for families or camper sailors, has been known to reach speeds of up to 20mph. This easy day sailor goes from trailer to sailing in under 30 minutes and is sure to fit in perfectly with whatever adventures you have planned.

Models: WR 16, 17, Tango, Rave V

Length: 10’11” – 18’3”

Cost:   $ $$$$

Use: Day sailor

trimaran eole

The Danish-built   Dragonfly   trimarans come in a variety of models ranging from 25’ – 35’, all known for their spry performance, comfortable ride, and ease of use. Every model comes equipped with the unique “SwingWing” feature, a motorized system that can unfold the amas even while the boat is already underway – making it accessible to marinas and slips, and even makes trailering possible. Perfect for those who don’t want to sacrifice their comfort for high performance, the Dragonfly can breeze along at 13 knots while remaining one of the quietest compact cruisers out there.

Models: Dragonfly 25, 28, 32, 35, 1200

Length: 25’ – 39’

trimaran eole

Designed for both safe cruising as well as for high speed racing,   Catri trimarans   will make your day. Especially noteworthy is the Catri 25, a stable yet wildly fast foiling trimaran with accommodations for up to 6 people. With profiles optimized for speeds of 25+ knots when foiling, this is no beginner’s sailboat. The special attention paid to stability in the foil design allows the Catri to be a single sailor vessel, even at foiling speed, with no special physical abilities. Whether you’re taking a small crew for longer rides at shuddering speeds or bringing the whole family along for a shorter, but still thrilling sail, the Catri is truly one of a kind.

Models: Catri 25

Length: 25’

Use: Cruiser/racer

trimaran eole

A popular brand of trimaran in Europe,   Astus   has recently made its way to the US market to the delight of sailors on this side of the pond. Designed to offer maximum pleasure with minimum hassle, all models of Astus trimarans are fast to set up, quick on the water, inherently stable, and always a joy to sail. Their outriggers are mounted on telescopic tubes for easy stowage and towing, and can even be extended and retracted on the water for access to narrow passageways and monohull slips in marinas. With models in all sizes and price points, Astus trimarans are a great option for any sailor.

Models: Astus 16.5, 18.2, 20.2, 22, 24

Cabin: Some models

Length: 16’ – 24’

Use: Sport cruisers


trimaran eole

Great for beginners and adventurers alike, the   Hobie Mirage Adventure Island   series is nothing if not just plain fun. With the option to use as a kayak or as a very basic trimaran, the Hobie is transportable, versatile, unintimidating, lightweight, and wonderfully affordable. The pedal system known as “Mirage Drive” allows a person to pedal the kayak using their legs for an extra kick of movement in slow winds. Amas tuck close to the main hull for docking or car-topping, adding serious ease and convenience to the exhilarating experience of the Hobie.

Models: Hobie Mirage Adventure Island, Mirage Tandem Island

Length: 16’7” – 18’6”

Use: Convertible kayak/trimarans

trimaran eole

Best known for its use in camp cruising excursions, the   Sea Pearl   offers a roomy main hull and particular ability to sail in very shallow waters, making beaching and launching a breeze. The lightweight Sea Pearl trimaran is easy to tow, and the larger-than-expected cabin opens this vessel up for overnight adventures with plenty of storage space. The simple design makes the Sea Pearl notoriously low maintenance, and the ease it takes to rig and sail it add to the overall delight of owning this boat.

Models: Sea Pearl

Length: 21’

Use: Camper cruiser

trimaran eole

Quick, lightweight, roomy, and trailerable,   Farrier trimarans   are made for versatility to fit every sailor’s needs. Different Farrier models are available in plan or kit boat form for those who appreciate building their boat themselves, but of course, also as the full production sail-away boat for the rest of us. Single-handed rigging and launching takes under 10 minutes from start to finish, minimizing hassle and getting you on the water fast. All non-racing Farrier designs use a minimum wind capsize speed of 30 knots or more to ensure safety for all those aboard. Add the roomy cabin and high speed capabilities to the equation and you’ve got a boat that is great fun for everyone.

Models:   F-22, 24, 25, 82, 27, 28, 31, 9A, 9AX, 9R, 32, 33, 33R, 33ST, 36, 39, 41, 44R

Length: 23’ – 39’4”

Cost:   $$$ $$

Use: Sport cruisers/racers

trimaran eole

One of the biggest names in the game,   SeaCart   is internationally noted for its high performance trimarans that far exceed expectations for a production boat of its size. The SeaCart trimaran performs as brilliantly off the water as it does on with its super-light and efficient harbor folding system, making light work of trailering. Notoriously easy to manage and maintain, the SeaCart 26 One Design is the ultimate day racing trimaran, designed for both course and inshore/coastal distance racing. Absolutely worth the international buzz it has garnered, the SeaCart is a thrill from beginning to end.

Models:   SeaCart 26

Length: 26’

trimaran eole

A high performance racer class, the   Multi 23   is a lightweight, powerful trimaran known for its wicked speed of up to 25 knots. Multi trimarans of both available configurations were designed to give beach cat thrills and speed without any of the stability or seaworthy concerns. Open ocean sailing is no issue for the Multi’s big bows, which do their job to keep her stable. Built for sailors with a need for speed, the Multi makes a perfect weekend boat for racers, especially those with a taste for boat camping.

Models:   Multi 23

Length: 23’

trimaran eole

Another dual outrigger sailing kayak/canoe design,   the Triak trimaran   was designed to be effortless and fun, especially for beginners. Paddle the kayak with sails furled, use the foot pedals for an extra kick of momentum, or sail with just the mainsail – the only boat in its class to feature an asymmetrical spinnaker – for exhilarating speeds and a blast on the water. Car-top the Triak anywhere for a quick sail or plan for a week long expedition, but always count on having a great time on this easy little boat.

Models:   Triak

Length: 18’

Use: Convertible kayak/trimaran

trimaran eole

SeaRail trimarans   are known for being affordable, light weight, trailerable trimarans that offer the perfect combination of exciting and relaxing experiences to a wide range of sailors. Whether it’s day sailing with your family, resort or camper sailing, SeaRail trimarans are ideal leisure vessels. Leave the hassle to the other boats – the SeaRail takes you from trailer to sailor in 15 minutes. But don’t let its reputation as a leisure tri fool you: if speed is what you want, rest assured that the SeaRail can deliver that as well.

Models:   SeaRail 19


trimaran eole

Warren Lightcraft trimarans , another example of a convertible kayak-to-sailboat option, are known for their aesthetically pleasing designs that are also, as the name implies, very light for simple transportation and ease of use. Convert the kayak into a fast, high performance sailboat in just minutes, fly around on the waves all day long, then simply car-top the 68lb Warren for a maximum enjoyment, low-hassle day on the water. Perfect for sailors and paddlers of all skill levels, the Warren Lightcraft is the best of both worlds and an absolute joy to sail.

Models:   Warren Lightcraft

Length: 15’6”

trimaran eole

Built strictly with racing in mind,   the Diam 24   is a light, powerful one-design class trimaran and a notoriously exceptional performer. Boasting blistering speeds of up to 30 knots, Diam trimarans are not intended for beginners. For racers who crave the very best in terms of intense speeds, smooth handling and impeccable performance, the Diam is the red-hot one-design racing tri for you.

Models:   Diam 24

Length: 24’

trimaran eole

For the sailor who prefers the finer things in life, the   Radikal 26   delivers. Perfect for bringing the whole family out for a day on the water, this high performance, trailerable sailing trimaran strikes the most luxurious balance between quicksilver speeds and a smooth, comfortable ride. The Radikal 26 trimaran is as convenient to transport and set up as it is pleasant to sail, with a folding system that minimizes rigging hassle and also makes this a trailerable tri. Built for a fast and comfortable sail rather than a hold-onto-your-seats thrill, one-the-water safety and overall pleasure makes the Radikal 26 what it is.

Models:   Radikal 26

Use: Sport cruiser

trimaran eole

A solidly-built, single-handed trimaran, the Challenger also doubles as an adaptive design – meaning it is made to accommodate sailors of all levels of physical mobility. Best suited to lakes, the Challenger is a very safe, seaworthy boat for sailors of all ages and experience levels. Add to this the ease of owning, transporting and maintaining the Challenger trimaran and what you get is a simple, fun sailboat perfect both for beginners and those seeking a cheap thrill alike.

Models:   Challenger

At a glance comparison:

Did we miss one? Let us know. Tell us what you sail and what you like about each boat in the comments below.

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Converting an ole motor boat to a trimaran, AND sailboat

Discussion in ' Multihulls ' started by Lonejack , Oct 26, 2018 .


Lonejack New Member

Hi new friends, Just joined, love reading the various posts. Please don't kick me out of the forum for daring to broach this subject. I live close to a major river in the Western U.S. As my Bride and I drive around sightseeing, I see hundreds of motor boats sitting with weeds growing over them. I have seen where some here have converted a monohull to a trimaran. Has anyone attempted to convert a motor boat to a sailboat or a trimaran? I know it could be a slug, but one could sure have a lot of fun trying. My thought would be to find a free Hobby cat and use the amas for stability, mount a mast-aft and use furling jib and genoa. Lots of deck room and with tramps, would allow for a great swimming platform. River and small water only. Max outlay, $500.  

Mr Efficiency

Mr Efficiency Senior Member

What motor boats do you have in mind ? Planing hulls ?  


JamesG123 Senior Member

Those boats are usually laying derelict for a reason, bad motor or bad rotten hull. Either that is what got them there or that is where they are now after years (decades?) of being left improperly to the elements. If you have more time than money (or sense), then yeah, anything is possible. But it will hardly be easy. It takes a ton of not fun work to get those old hulks cleaned up and functional enough to put back into the water. And that is without trying to convert one to a motor sailer.  
These boats are mostly fiberglass. Wouldn't touch a wood hull. Almost 100% of these are planing hulls. I was just looking on Craigslist, there are many free boats offered, with trailers. I'm not planning on building an America's Cup yacht, just going to go through the process and have the fun of designing the craft. Probably will use unusual materials for the mast, rigging and sails. Yep, it will probably be a crude failure that ends up in the land fill. I'm looking for a weekend river cruiser. May race another Who knows... The challenge is intoxicating. I am a retired designer who was born and raised on a post depression wheat ranch, located 6 miles from the nearest town. We had to design. build and maintain most of our own farming equipment. My father patented a farm machine and invented a rotary steam engine among other things. I inherited his design bug. Love to design and build something from repurposed material. Hey, I'm retired, every day is Saturday, except Sunday. I have a full shop, Gotta do somthin.  
Get two planing hulls that are the same boat, and join them end-to-end (stern to stern), that way at least the thing will move through the water relatively easily, a planing hull has too much resistance.  
Lonejack said: ↑ These boats are mostly fiberglass. Wouldn't touch a wood hull. Click to expand...


ondarvr Senior Member

$500.00 won’t get a “free” boat back to your house.  


kapnD Senior Member

As Mr Efficiency has noted, planing hulls make lousy sailboats, you need to do some research on efficient sail driven hulls before you move on the idea. I’ve seen powerboat hulls split in half to make catamarans, but that doesn’t really do anything besides making them heavier and more stable, and it’ll still be a powerboat hull, and a poor sailer.  

trip the light fandango

trip the light fandango Senior Member

Mr Efficiency said: ↑ Get two planing hulls that are the same boat, and join them end-to-end (stern to stern), that way at least the thing will move through the water relatively easily, a planing hull has too much resistance. Click to expand...
trip the light fandango said: ↑ A 30ft long boat about 2metres.6;6 wide would make a good river/lake craft Click to expand...


upchurchmr Senior Member

There are lots of derelict fiberglass sailboats which would make a better main hull for a trimaran. Get the narrowest one you can find. Hobbie cat hulls don't have much flotation. If you can find Nacra or Tornado hulls they will work much better. All that weight will need more sail, not less. Perhaps an old Tornado mast/ sails would work. 16' Hobbie cat rigs are more plentiful and almost the same size. The mast is also shorter (5' less) and lighter. I got a whole boat for $100 a year ago. The hulls were complete trash, which is typical. There are articles about a Soling that was converted to a Tri on line, Google. Also a Chrysler 22 which seemed to work good. Good luck. $500 is probably a little low, but good for daydreaming! Keep updating this thread please - I want to see it. Marc  
kapnD said: ↑ I haven’t seen any fiberglass powerboat hulls with dimensions anywhere near 30’ x 6’6”. Click to expand...
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trip the light fandango said: ↑ No, but lots of 15 ft x 6;6 I should have made that clearer. I prefer tri's and they generally need to be light or the joins are either works of art or very strong and heavy or both. 2 half cabs butt joined could be a good thing, ha. or why not a proa , now that could work... maybe, cheers Click to expand...


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OCEAN EAGLE 43 Trimaran Maritime Surveillance Vessel

The first Ocean Eagle 43 trimaran ocean patrol vessel ordered by the Mozambican government was launched in January 2015.

January 2015

Maximum Draught

Range at 18k.

trimaran eole

The first Ocean Eagle 43 trimaran ocean patrol vessel ordered by the Mozambican government was launched in January 2015. The vessel is built by French shipyard Construction Mecanique de Normandie (CMN) to meet the naval operational needs of marines and to support special operations forces.

The vessel is intended for sea policing, surveillance of exclusive economic and fishing zones, search and rescue (SAR), safety and State action at sea, protection of vulnerable vessels and offshore installations, monitoring of marine environment, escort operations, counter speedboats, asymmetric threats and the boarding of terrorists. It is also used for combating illicit trafficking, smuggling, illegal immigration, terrorism and piracy at sea.

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Its modular design allows it to be configured for special operations support, side scan sonar operation, coastline surveying and coastal oceanography.

Its mine hunting variant, Ocean Eagle 43 MH was unveiled during the 24th EURONAVAL International Naval Defence and Maritime Exhibition and Conference held in October 2014 in Paris, France.

Ocean Eagle 43 construction

CMN finalised a contract with the Mozambican Government for the construction of three Ocean Eagle 43 trimaran ocean patrol vessels in September 2013.

The vessel is designed by NIGEL IRENS DESIGN, while structural building for all the three vessels was carried out by H2X under a contract signed with CMN in December 2013. Participants involved in the Ocean Eagle 43 programme also include Prezioso Linjebygg, ProLarge, and SeaTeam Aviation.

H2X rolled out the first Ocean Eagle 43’s central hull in July 2014 and delivered it to CMN shipyard in Cherbourg in September 2014. The second and third hulls were delivered in December 2014 and February 2015 respectively.

Design and features of the ocean patrol vessel

The Ocean Eagle 43 features versatile design and multi-hull structure comprised of a very slender main hull with two small floats. It is classified by Bureau Veritas classification society. Its hull and superstructures are made from lightweight composite materials such as epoxy, glass and carbon.

The vessel has an overall length of 43.6m, overall beam of 15.7m and maximum draught of 1.6m. It weighs 75t and can accommodate a crew of 13 personnel. It is equipped with a launch pad to operate fixed- or rotary-wing unmanned aerial vehicles (UAVs).

It is also fitted with a stern launching ramp to deploy a 7m outboard rigid-hulled inflatable boat (RHIB) for the shipment of goods, policing intervention, and other special naval operations.

Mission systems

Typical mission systems aboard the maritime surveillance vessel include electro-optical observation system, radar sensors, radio direction finder, command and control system, air-sea radio transmission of satellite data and an integrated navigation system.

Armament of Ocean Eagle 43 patrol vessel

The Ocean Eagle 43 is armed with one 20mm remotely-controlled gun turret and two 12.7mm side guns for self-defence.

The vessel runs on four 500hp diesel engines driving two controllable pitch propellers. It also incorporates three generating sets. Its carries up to 21m³ of fuel and 2m³ of fresh water.

Performance of the ocean patrol trimaran

The Ocean Eagle 43 maritime surveillance vessel can reach maximum speeds up to 30k. It has a range of 3,000nmi at a speed of 18k and 5,000nmi at 12k.

Its trimaran structure provides improved fuel economy, high reliability and extended endurance. It also offers increased comfort under difficult sea conditions.

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trimaran eole

  • TR42 Trimaran


TR42 Trimaran high profile


The boat in the photo is Yana, the TR40 design of which a small number were built in the early 1990's. The TR40 was inspired by my experience cruising, racing, and living aboard my 33' trimaran Yellow Bird in the early to mid 1980's.

Regretfully no TR40's were built in Australia and to this day I have not had the opportunity to sail on one, although I have raced and cruised on the smaller Spoon Bay 10.6 which I designed just a few years earlier.

The TR42 is a current day version of the TR40. Float shapes have evolved, the centre of gravity has moved aft, and we'd prefer twin rudders because boats tend to get driven harder these days and you need the extra bite when you're flying the main hull. 

The design is very similar to the Rocket Factory trimarans, with the main hull, decks and cabin all built in kit form from flat panels. It could be a Duflex kit, or you could build the whole boat from full size patterns over temporary moulds. 

For a more bare bones high performance version of this design see the R42 here.

TR40 trimaran Yana sailing

TR42 is available in aft cabin and open cockpit versions and some variations on the internal layout are possible in both versions.


TR42 accommodation Layout open cockpit version

TR42 Trimaran Layout with single forward bathroom. The arrangement in the main saloon is interchangeable with the aft cabin and open cockpit versions.

There is quite a bit of flexibility with the layout on the TR42, for both the aft cabin and the open cockpit versions. I have presented these two options as a starting point. I have a personal preference for quarter berths while at sea, as I've stated elsewhere, but the aft cabin serves the same purpose. It gives quick and easy access to the cockpit if you're single handing or short handed.

For the aft cabin version I've moved the cabin forward from the transom a bit to make room for a boarding platform, dinghy stowage, and offering the option of using an OB motor as an auxiliary.

One advantage that comes from moving the forward beam and dagger case aft compared to earlier designs is that it provides a lot of space in the forward cabin. There is ample space to fit a head and shower forward of the beam BH and the forward berth is 1.5m/5' wide.

If you wanted a private owner's cabin forward it is possible to fit a second head and shower behind the dagger case in the saloon as shown in the open cockpit layout. This arrangement can also be used on the aft cabin version.

TR42 Trimaran aft cabin version accommodation layout

This arrangement shows the two bathrooms forward and once again is interchangeable with the aft cabin and open cockpit versions


Tr42 trimaran basic specs.

trimaran eole

Enquire for pricing on plans, kits, and built to order ready to sail.

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    TR42 PERFORMANCE CRUISING TRIMARAN. ABOUT THE TR40. The boat in the photo is Yana, the TR40 design of which a small number were built in the early 1990's. The TR40 was inspired by my experience cruising, racing, and living aboard my 33' trimaran Yellow Bird in the early to mid 1980's. Regretfully no TR40's were built in Australia and to this ...