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Mark Smaalders Yacht Designs-  

Plans for wooden boats, providing plans for wooden boats, carvel and wood/epoxy  construction, stock wooden boat plans , now available: olga 31 .

The Olga 31 is a stretched version of my Olga 28 design. The Olga 31's outboard is mounted on a swim step or at the transom. 

An expanded cabin is also an option.   

wood trimaran sailboat plans

Coming Soon: Simplicity 35 with inside ballast

The new version features simpler construction that eliminates casting a lead keel. 

wood trimaran sailboat plans

   Photos from builders around the world  

wood trimaran sailboat plans

In North Carolina Sytse Douna has launched his Olga 28. More photos and details on the Olga (28 and 31) page.   

wood trimaran sailboat plans

Above: in July 2022, in Belgium, Jan Saey launched his NS29 Cajuro .    She's still being rigged, more photos to come.

wood trimaran sailboat plans

Above: in June 2022, at the WoodenBoat Show in Mystic, Paul Thompson's Kahuna Seven Stars won BEST IN SHOW, OWNER-BUILT SAIL . A fitting prize for a stunning job of building.  

wood trimaran sailboat plans

Above: The helm station on Sytse's Olga 28 .

Designs under development   New sail and power designs  

wood trimaran sailboat plans

Simplicity 28

wood trimaran sailboat plans

Deck construction and interior for a 32' Lyle Hess cutter 

Making changes to an existing boat, or to a set of plans?

I can help with repowering, hull and rudder changes and repairs, and new interiors.

I can also provide advice if you are buying a boat, used or new. 

wood trimaran sailboat plans

Hull and ama modifications for a 40' trimaran

Lunada Design

Creative Boats for Home Builders

Category archives: plywood trimarans, back bay sit on top kayak, a modular system approach to sot kayak sailing, paddling  and mirage drive propulsion.

Sit-On-Top (SOT) kayaks are easy boats on which to learn to paddle. They have none of the “get in the coffin and you are about to drown” psychological identity that one finds in the Sit-Inside boats and they’re amazingly adaptable to a wide range of paddling activities. It also doesn’t hurt that they are pretty straightforward boats to rotomold, which makes them very cheap to produce in large numbers.

I didn’t envision just one boat for this niche in the home-built kayak market. Instead, it came to me that there would need to be at least three models that could address the wide-ranging styles of boating interests in this area of the kayak world. The result was a couple of very clean, SOT models at 14’ and 16’ called the Corona and the Back Bay, respectively. The third model was going to be called the Wahoo, as it was specifically designed for the folks who spend a lot of time fishing with their SOT’s. I’ll get to the Wahoo in the next article.

As a canoe and kayak sailor and a guy who had just been out for a test drive on the Hobie Adventure Island, which is based on their 16’ SOT Adventure model, I wanted to offer my own take on what makes for a truly fun and stylish, sailing SOT kayak. The result was that a fully integrated system of component parts was designed for the basic Back Bay. This modular approach allows the Back Bay to go sailing by simply adding a system of light-weight, easily built elements that quickly convert the SOT to a single aka sailing boat called the Scorpion, OR, to a double aka sailing boat with slightly larger ama volume, called the Doubloon. Of the two configurations, the Doubloon is most like the well-known and highly respected, Hobie Adventure Island.

The Corona and the Back Bay are virtually identical models, save for their respective lengths. For the purposes of this article, I’ll focus on the Back Bay version and all the potential add-on systems I’ve incorporated in the design.


Specifications: Length overall – 16′ Beam overall main hull – 28″ Depth of hull max – 12” Weight – 48 lbs. or less Displacement – 335 lbs.

This boat is built in the S&G style of construction in 4mm marine ply with 6 oz. plain weave fiberglass set in epoxy on the inside and outside of the hull for full laminate sandwich strength. The build process uses external cradles as building supports, ensuring that the hull goes together with minimum hassle when handling the rather slender and longish hull panels. The boat is bulkheaded internally at three key points. These bulkheads create not only integrated strength in the design, but they also cleanly separate the hull cavity into four unique volumes for gear storage and watertight flotation.

The Back Bay can be configured with a large, open tankwell set aft of the cockpit, or built with a watertight, aft hatch cover for internal storage in a conventional kayak style.

Specifications: Beam overall – 10′ Weight (est.) – 90 lbs. Sail Area – 56 sq. ft. Displacement – 350 lbs. Draft (board down) – 28″

The Scorpion variant is a Sit-On-Top design for fun sailing, paddling, or Mirage peddling… or all three, as the builder desires. There will be a design for a leeboard mount included in the plans for those who are going to build the boat for sailing. Having the aka gull wing form set well forward permits a full paddle swing arc.  The aka beam connectives to the amas is split into a pair of mounting elements. I did this to make for a stronger, single beam mounting struture. With a single beam design, there is a tendency for the am to want to rotate around the beam, making for a very stressed component that could lead to early failure. By splitting the beam and spreading the mounting points, I have given the structure more resistance to this rotational force, making for a more rigid boat in use. This setup will allow the owner to power sail in light air with both the paddle and the sail providing thrust. With the leeboard swung down for sailing, the owner can do some “power sailing” and utilize the Mirage drive, as well as the sail, in light conditions. The Mirage is capable of boosting boat speed enough that it creates apparent wind over the sail, adding power where there really isn’t enough for sailing alone.

The amas are positioned to optimize capsize resistance when sailing off the wind. The amas do not touch the surface of the water at rest in stable trim and provide only minimal wetted surface drag when underway by paddle or peddle. As soon as the sail is loaded by the breeze, though, the ama on the lee side begins to immerse, firming-up the boat and resisting the heeling moments being generated.

The aft deck can be configured as a watertight hatch with full access to the aft sections of the hull, OR a large, diving tank well with self-draining ports. The cockpit is fitted with self-drain ports under the seat as well as forward, in addition to the daggerboard slot. There is a watertight deck plate just forward of the seat, between the knees of the sailor/paddler to provide secure storage for critical items that may be needed on a routine basis. The foredeck has a watertight hatch cover for bow storage needs.

The rig is a fully battened Dacron sail with two reef points and a multi-section, self-supporting mast which steps into a sealed mast socket in the hull. The mast and boom sections can be aluminum or carbon, as budget permits. The sail choice is open for the customer as long as it can be balanced with the fixed positions for the mast and dagger board. The Cunningham is run to the deck of the gull wing aka to keep the rig on the boat in the event of a capsize.

With 56-sq. ft. of sail on a 90-pound boat, this will be a decently speedy boat without being in over its head all the time in a stiff breeze. I suggest two reef points in the sail to allow for sailing in a wide variety of conditions.

This will be a wet boat at speed, yet there are no worries at all for flooding and sinking, save for a truly nasty trip over a reef that shreds the entire underside of the craft. The bow, cockpit and aft hull volumes are all independent, sealed compartments, as are the ama volumes.

Reentry from a swimming session will be easy with a simple, sling, or rope ladder much like those used by rock climbers, called etriers.

The boat is constructed in a multichine, marine plywood style with epoxy glass laminates inside and out in a stitch and glue style. Stainless T-Nuts are embedded in the hull deck surface from below to provide a secure set of mounting points for the aka wing. The amas are held in place on the aka tips by large bungees and a notched lock system. This system provides for quick setups on the beach.

You just fit the aka to the foredeck, insert four, 1/4″ threaded stainless screws with comfortable, knobbed grips and screw down the aka wing. The amas slip onto the ends of the aka and you lift the pair of 3/8″ bungees up and over two raised hooks on the aka ends to secure the ama in place. Simple, easily maintained and near foolproof in operation.


The Doubloon is the second variation on the central SOT theme of this group of boats. In this design, I am looking to provide a more expansive utility application for the base, Back Bay SOT version. The Doubloon is essentially a solo craft and it carries the same, 56 sq. ft. sail, but the overall potential of the boat is expanded through the use of dual akas and full trampolines on both sides of the Back Bay hull. The rendering of the Doubloon shows a daggerboard inserted down through the Mirage Drive trunk, but in use, I would prefer to have the board mounted outside the Back Bay hull as a leeboard. Plans will be supplied with the leeboard solution.

The akas on the Doubloon are spaced to allow for a full paddle stroke with the boat setup as a trimaran. There are two sections of tubing that span the opening fore and aft between the akas from which the tramp is mounted. The trampolines are designed to roll-up on the outer tube section, much like a window shade and they are deployed by an endless loop of light halyard line. With the tramps fully deployed, the inner tube section lifts up and over a holding pin in the aka and the sailor applies as much tension to the tramp as he feels he needs by hauling-in the endless loop line and cleating it off. If a paddling session is desired, he simply pops the jam cleat and pulls the line to roll-up the tramp on the outer tube section. This procedure applies for both port and starboard tramps.

Like the Scorpion, the Doubloon can be built to utilize a Mirage drive in the center well and the need to roll-up the tramps for paddling is essentially negated, (though it is nice to have the option once in awhile as Mirage drives can be difficult to maneuver in tight places)

The aka beams are held to the deck of the Back Bay hull with the same, threaded knob strategy for quick setup and takedown times. Similarly, the amas are held to the aka ends with hefty bungee cords for the simplicity of use. There’s another, rather invisible, benefit to using the bungee cords for ama mounting. Because they are being held in place through a fairly dynamic hold-down system, the amas can move about, ever so slightly, while underway. This allows the amas to have some structural “give” and the result is that the banging and thrashing that is typically experienced by the ama, is somewhat dissipated through the flex of the joining system.

All in all, I think the Back Bay SOT should be a really fun boat to own for warm water/warm weather boating adventures. It has the capacity to carry enough gear for several days out on the water. When rigged with a sailing system of your choice, it can also cover some pretty good distances if the winds are favorable. Plans for this boat and all its variations will be available from this site and Duckworks Magazine.

Chris Ostlind

Lunada Design

Solo 12 and 14, corsica 15r, sports car performance on the water.

Over the past couple of years, I have taken a break from my boat design work. During that time, I’ve been able to reassess my connection to the craft. The last boat I designed was the Europa 20, which is a trimaran meant for vertical strip foam construction with sandwich style, infused epoxy/glass laminates inside and out. The Europa is a boat for very fast day sailing with a very light hull and a very big rig. A boat that is not for everyone, to be sure, as it requires a level of skill that the average guy does not typically cultivate in the course of experiencing their recreational boating interests.

In stepping away from the larger, more powerful beach type multihulls, I came around to the desire to produce a smaller, very quick and sensitive boat that would appeal to recreational sailors and not just those guys who want to blast around with their hair on fire (though I do suspect that in the right hands, this boat will do just that). The new design had to be easy to build with standard, marine plywood/epoxy/glass techniques that did not rely on exotic layups with spendy carbon cloth. (Well, maybe the carbon will sneak in there a bit on the beams for the guys who want to play with a bigger rig)

Looking long and hard at the smaller skiff-like hull designs I had done before, such as the Montage, I decided to draw the new boat in that same general size, but with a very different approach when it comes to how the boat achieves its performance potential. Where the Montage has a relatively spacious cockpit capable of taking on a couple of adults, (or a parent and a couple of smaller kids) the new, Corsica 15R trimaran would be for one adult (or accomplished kid) designed solely for a unique, one-up sailing experience within the small beach multihull genre.

As a result, the boat has minimized clutter when it comes to excessive high-tech trickery. With that approach, the Corsica 15R is also going to be a boat that has much lower maintenance requirements in order to keep it in top sailing condition, as well as a much lower realized cost to get it on the water and ready to sail.

If you are into cars, as I am, then think in terms of a nicely pumped, Mazda Miata, type of boat that would be a cool, weekend canyon racer for one person. A boat that could blast around the local waters in a good breeze and give chase to other small, fast, multihulls being sailed by crews of two.

The result of this conceptualizing process is the Corsica 15R. The C15R is a boat of modest, marine plywood build techniques and is very light weight for its generous sail area. With this boat, the normal sailing position would be the skipper, semi-reclined within the main hull, driving his machine like an F1 Grand Prix car. In this configuration, the boat is designed to utilize foot pedals for steering, leaving the hands free to work the sheets. But, that’s not the only way to sail this boat. Owners who wish to sail in a more conventional multihull style, can sit-up out of the cockpit and onto the main hull cockpit gunnel, or even the trampoline surfaces all the way out to the ama, where they will steer with a tiller extension.

A construction style in multichine, 4 mm marine plywood, allows the boat to be assembled in a well-understood fashion that will go together quickly. With a subtle placement of minimal stringers and sufficient bulkheads, the C15R becomes a strong main hull shell that can absorb the loads from its sizeable rig, turning the power of the sails into forward thrust in the water.

There is no fully enclosed transom on the vaka hull. The cockpit deck is slanted gently down and aft for automatic self-draining, such as is seen in sport dinghies and larger race boats. A collection of bulkheads under the cockpit deck provide structural support and watertight compartments ensuring that the boat will not likely sink even if large sections of the bottom are torn out from an underwater hazard while smoking along in a gin clear lagoon.

The demounted boat can be assembled easily by one person. The gently gull-winged akas are built with a glassed box beam core.  The inboard ends of the akas slide into tapered sockets in the main hull and are levered in place with stainless waterstays to make ready for sailing. This, tapered socket technique prevents binding while assembling the boat, while providing a solid, hassle-free and weight minimized demounting system. The leading edges of the akas are smoothly shaped foam blocks that are glassed onto the box beam to provide an aero component, as well as creating reduced drag from waves and spray. The akas are hard fastened to the amas as a complete assembly that is easily removable from the vaka hull. The trampolines stay mounted to the akas and amas for transport and only have to be hooked and tensioned to the main hull during assembly.

The mast is a stick from a Hobie 16. I specify the addition of a set of spreaders from the Hobie 18 mast to stiffen up the H16 mast to handle the additional righting moment generated by the Corsica design. Naturally, I’d prefer to see fresh sails in something like fully battened, Pentex laminate, but builders on a tight budget could also work with a loft service to tweak a reasonably fresh Hobie 16 main and jib and do just fine. The addition of reefing points on the main are strongly suggested, as well as the use of furlers for the jib and spinnaker/screacher. For those who desire fresh sails for this boat, I would recommend the folks at Whirlwind sails in San Diego, California.

A removable carbon prodder sets the tone at the front end of the boat. The stick originates as a carbon windsurf mast, so it is easily found on the used market and equally replaceable, should it get poked into an unyielding environment. For trailering, the sprit unpins, slides out of its socket and is stowed in the cockpit for transport and storage.

Corsica 15R Specifcations

LOA                                         14’ 11”  (4.54 m)

BOA                                         13’  (3.96 m)

Displacement                         650 lbs.  (294.8 kg.)

Sail Area (upwind)                 218 sq. ft.  (16.17 sq. m)

Spin                                       142 sq. ft.  (13.19 sq. m)

Mast Length                           26’  (7.62 m)

Draft (board up)                     1’  (.3 m)

Draft (board down)                42” (1.07 m)

The mast is raised by the traditional beach cat method of physically lifting the mast with the base pinned to the mast step, or by utilizing the long daggerboard in its trunk as a form of a gin pole. A forward hoisting line is led over a pair of sheaves at the top of the daggerboard and down to the hand cranked winch on the trailer. Mechanical leverage quickly raises the mast so that the forestay can be fastened to the bow, stepping the mast securely. You can see a few photos of the process at Brent’s L7 trimaran site:   This is a very simple way to raise a mast should you need to avoid the trad lifting exercise for one reason or another.

I chose to not go with tricked-out, curved lifting foils in the amas due to construction complexity and added cost for the builder. Foils of this type are hard to build correctly by hand, as are the needed curved trunks in which they slide. Instead, the boat is equipped with a daggerboard that is inserted through the deck of the main hull in front of the mast which angles aft to exit the hull below the waterline. A daggerboard and trunk of this type are much simpler forms to build and orient in the hull. It is also just one main foil, where lifting foils need to be made in pairs, one for each ama. Lifting foils also need complex control mechanisms to retract and deploy the foils and they have to work from the cockpit remotely with the foils mounted way out in the amas. The needed controls are an interesting problem when the boat is 13’ in width and the driver is semi-reclined in the main hull.

Note: I’m not against an owner who might want to experiment with foiling for this boat, even if it is just foil assist and not full flying. It would require a lifting t-foil style rudder and twin Bruce style foils in the amas, or, if a person is really accomplished as a composites builder, they could make a pair of matching c-foils for the ama. The owner just needs to know what level of additional work is involved and at what skill level they need to perform in order to get the desired result.

If you are on a budget, the rudder and headstock from a Hobie 16 will work just fine for the Corsica with some mods to the tiller. The more deluxe, Rudder 25 system from Dotan will also work well, should you have the coin.  If you plan on pushing the boat hard, then a longer blade will be required, or you can get yourself invested in the process of putting a rudder on each ama and have stunning control at your finger tips. On the down side, that change will cost you a bit out of your pocket and at the launch ramp in setup time… though I can see a nifty rig with light alu tubing and the use of snap buttons as a cool solution.

The Corsica 15R will be a light boat built from familiar materials. It should be a fairly simple building experience for the owner and will fit comfortably into any typical garage space, making it easy to find a building location. It will quickly assemble for sailing and be hassle free with minimal maintenance required to keep it in top form. It can be towed behind any compact car on a typical beach cat trailer and when demounted for travel, is road legal anywhere in the world. On the water, this boat should be quite quick and behave with predictable, pin-point sailing manners. With the skipper slung comfortably in his reclined cockpit seat, he will be decently protected from the effects of the weather and sea state while tearing around his local waters.


Making use of mirage drive propulsion with more efficient hulls designs.

Nagare  (nah-ga-ray) is a Japanese word meaning Flow.

Both of them are configured as trimarans with fairly small and unobtrusive amas designed to give the boats remarkable stability in a wide range of conditions while allowing the vaka, (main) hull to be decidely slender for more effective drive through the water.

The Nagare sisters also have incredibly narrow waterline beam numbers that, when coupled with their fairly long hulls provide for very easily driven hull forms for high efficiency per unit of energy applied.

I expect both boats to operate at the very high end of commercially available paddled boats of the same length, beam and weight. So, yes, they can go pretty quickly, but that’s not the real purpose.

The real benefit of the design genre is through the ease with which they are propelled at any given speed, compared to other boats of their size. This efficiency translates directly to those using the boats as less tiring for miles covered, or greater speed with the same effort as other, wider designs.

Because the propulsion is derived from the largest muscles in your body, the leg muscles, rather than the arms and shoulders, there will be less fatigue for each mile traveled. Because leg muscles are so much bigger than arms, they will be able to do more work in a given period of time, making for longer possible trips, as well as the mentioned lower fatigue issue. With a less fatiguing effort, more people will be able to enjoy the experience of being out on the water for daylong adventures.


The Nagare 21 uses a set of amas, mounted on a pair of simple, anodized aluminum tubes with quick release snap buttons holding the sections together for easy disassembly for car-topping. If a trailer is used to transport the boat, the beam of the Nagare 21 falls well below trailer maximums, so nothing special needs to be done to take the boat to and from the water. Two Nagare 21’s can be trailered, or car-topped, by removing one of the amas and placing the main hulls close to one another on the racks, or trailer. The removed amas easily fit inside the hulls and they are ready to go. The whole affair on the rooftop is very much like a pair of sea kayak doubles. Because of the length, I would not mount a boat this big on any compact cars. You would be very likely to rip the rack right off the roof in strong side winds.

Steering is by means of a simple, flip-up style kayak rudder with control lines run through the hull to a convenient steering lever in the cockpit. I suggest the SeaLine SmartTrak rudder system (do a search for supplier), the P-41 Multi-purpose rudder from Onno Paddles and the Feathercraft rudder system for hardshell boats.   These are really great rudder units and will give excellent steering control with minimum drag.


This boat can be built with a full cockpit tub so that it functions as a Sit-On-Top kayak with full drainage through the Mirage drive openings. Auxiliary drain ports are located in the tub for rapid removal of any water that comes in over the side of the hull. I suggest the SOT option for warm water users, with the more traditional kayak style, Sit-Inside hull form for those who will be using the boat in colder water, or more frequent inclement weather.

The SOT version has internal bulkheads for support of the SOT tub, along with the capability of adding a small circular deck plate for an additional watertight compartment in the cockpit that is perfect for small items, such as cameras, wallets, car keys, etc.

The SOT variation is an optional element to the base plans. If you wish to built it as an SOT, drop me an email at my regular email address and I’ll get back to you.


This is not really a boat that is meant to go out in rougher conditions, such as those where a full-blown sea kayak might be right at home. It’s meant for quieter waters, such as lakes, bays, harbors and bigger rivers. It can take a session in 1 or 2 foot breaking surf, but I would not expose the boat to bigger waves, especially in a shore break scenario. You may find yourself out from the shore a bit when the wind comes up, producing steep, choppy waves. The basic Nagare 21 will handle this easily because only the cockpit will be exposed to swamping. The amas will keep the boat stable while you pedal to shore, or a quieter place on the water, where you can bail-out the boat and continue.

It is a perfect boat for sightseeing, bird watching, fishing, photography, and just simple, energy efficient cruising with near bomb-proof stability (you can stand up in the boat while out on the water without your partner coming completely unglued, for instance).

The Nagare 21 is a fast, comfortable and unique boat for a couple who like to get out on the water, but do not want to hassle with the business of capsize that is present in other types of boats, such as kayaks and even canoes.


The solo version of the Nagare series has some very different twists, compared to its bigger sister. It has the same, highly efficient and easily driven, slender hull technology, the same set of trimaran style amas well aft for big time stability, the same generous cockpit opening and the same convenient utility for car-topping or lightweight trailering.

The design elements that set this particular boat apart from its sister craft is that the Nagare 17 has a very special capability when it comes to fishing.


Anybody who builds the Nagare 17 and intends to use it for fishing will probably be knocked-out by the potential for facing aft while trolling. Imagine using your legs to quietly drive the boat forward while you casually set trolling rigs, eat a sandwich and keep an eye on the fish finder… all while keeping an eye on the rigs you have set, with them easily at hand?

This is the signature utility development with the Nagare 17, designed specifically, for fishermen. It works like this…

The fisherman loads his boat, drops into the forward facing seat, hits the iPod for his favorite tunes and jams out across the lake at a remarkable speed for a human powered boat. He zips across the lake in virtual silence because he’s driving a very skinny and efficient hull with no engine sounds. Once he arrives, he’s going to make a few sneaky trolling passes with his Mirage drive pushing him along over that monster crew of Pike that are hanging around on their favorite piece of structure. Wham! Fish On! and the day starts with smile on his face.

If you’ve ever fished from a typical Sit-On-Top, you know that you have to face forward while trying to look over your shoulder while trolling. Hook-up and then you have to swivel around, grab the rod and go after the fish. All the time you are doing this, you have to balance the boat carefully, because the whole tamale could go over and end your day right then and there.

Well, that’s how you used to do it, anyway.

With the Nagare 17, you can take it to a whole new level of fishing pleasure. The Nagare 17 is equipped with twin Mirage drive trunks. When driving the boat forward and facing forward, the Mirage drive is dropped into the forward trunk and a tractor-style seat is dropped into the aft trunk with the seat bottom resting on the top of the trunk.

To convert the boat to aft facing trolling and fishing, you simply stand up in the boat and swap the Mirage drive for the aft mounted seat plug and the seat then goes to the front trunk… facing aft. With the Mirage drive still set to drive the boat forward, you simply sit down and start pedaling, slowly, up to your desired trolling speed.

Now, you can watch your fish finder, GPS and your trolling rigs while you continue to tool along at your favorite speed for nabbing the fish. Get one on and simply work that rod while continuing to face aft. No twisting around in your seat, no ”just about dumped it” scenarios, just simple, fun fishing in a very stable boat. What could be cooler than that?

With the fore/aft balance point of the boat set right between the two drive trunks, there is but a very minimal change to boat pitch when you change the direction you face.

The Nagare 17 is further designed to accept an insulated and watertight tank between the two aka tubes where they run through the aft deck. You can use this for all kinds of stuff like: your catch, fresh bait storage, cold beverages if you catch and release… whatever suits your needs. There is plenty of room between the two drive trunks for a pretty good sized tackle box and lots of room up forward of the trunks for any of that “other stuff” that fishermen seem to sneak aboard their boats.

A moveable electronics unit can be fastened at the forward end of the cockpit, or unhooked and moved around aft if you’d rather have it facing that way.

Maybe you want to cast lures or flies instead of troll. The boat is so stable with the two, wide set amas, that you can stand up and cast all day without ever feeling like you are getting the least bit tippy. All in all, the Nagare 17 is quite a boat for fishing, as well as just plain fun, recreational pursuits.

The Nagare sisters represent a unique design family for human powered vessels. They are quick, stable and with their unique styling, represent a distinct departure from the looks of traditional boats one typically sees on any given shore or launch ramp. Both boats are designed to be built in marine ply Stitch and Glue methods for the hull sections, with cedar stripped decks to take advantage of the really beautiful, smooth curves capable from that style of building. You can paint the lower sections of the hull and leave the cedar decks natural with a deep varnished finshed, for a real knock-out boat that will really gather a crowd.If you really want to have a plywood deck build instead of the cedar strip build, write and twist my arm gently. I can design that change for those who really like to build that way

Plans are not yet complete, so if you would like to build one of these two boats, please send me an email and I’ll put your name on the mailing list for information, or watch the plans section of Duckworks for the notice.


Another Trimaran/Skiff … Bigger, With More Power

Well, you had to know this would happen…

When the Montage Skiff/Trimaran was introduced, the Lunada Design website was absolutely flooded with an ocean of page hits every day right after the article was posted. I received several dozen personal query letters regarding the boat and sizeable slice of them were directed at the potential of a bigger version of the Montage.

The concept of being able to build your own boat and rig it with a used mast and possibly even used sails, (if they are in good enough condition) had struck a chord with the homebuilding community. The creation of a larger version of the Montage would take the specified rig choices up into the much more commonly found beach cat rig sizes and make the business of finding a used rig in great shape, a whole lot easier. After pencilling a collection of thoughts and running some rough numbers on the potential, the idea came into focus as the 18′ Collage.

The ama shapes, especially on the smooth hulled variation, borrow other design cues from the modern performance dedicated French designs of VPLP, as well as the very cool work of Nigel Irens. The transoms are nudged in the direction of a triangular shape, while retaining some of the typical beach cat, flat-topped U-form feeling. The volume concentration is well-forward, with the foredecks being much more rounded to provide rapid shedding of water. These shapes will help to reduce the tendency of multihulls to pitchpole when sailed hard.

Breaking away to some degree, from the single, build style of the Montage offering, the Collage is presented as a fully strip built, smooth hulled version, as well as a multichine plywood version. These choices will give builders the ability to work with the material choices and aesthetics they prefer. I am also looking at the potential for a foam cored sandwich laminate boat using the vertical strip technique, though that iteration will probably come around a little later in the process.

Collage Specs

LOA 18′  ( 5.48 m ) BOA 14′  ( 4.26 m ) BOA main hull 41″ ( 1.04 m )

Sail Area Main 163 sq. ft. (15.14 sq, m.) Jib 55 sq. ft. ( 5.12 sq. m. ) Spinnaker 161.5 sq. ft. ( 15 sq. m. )

Displacement 1000 lbs. ( 454.5 kg. ) Weight 380 lbs. ( 172.7 kg. )

The Collage meets all the same design criteria as does the Montage, except it’s longer and wider, has more sail area, carries more crew weight and yes, it’s going to be faster in the right hands. Faster… sometimes this term can be kinda self-defeating when speed claims are made compared to another boat. When it comes to recreational boats, I’m of the opinion that speed is a relative thing based on the overall design brief of the boat in question. In the case of the Montage and Collage designs, speed is one of the attractive elements as long as it is kept in perspective with  just what the use application will be from day to day. From where I sit, this will be primarily recreational purposes.

The Sail Area to Displacement ratio ( SA/D ) for each of the boats is as follows: The Montage is 31.56 and the Collage is 34.88 With both of these boats being sailed at near max displacement, I give the nod to the Collage, based on waterline length, as well as the ability to punch through wave conditions that will toss the Montage around to some degree.

I would like to see this pair of boats ( Montage and Collage ) blasting around in the hands of skilled sailors. There’s nothing quite like the feel of a performance boat and the way it can deliver the exhilaration of a spirited ride. But… I’d also like to see this boat out on the water being used by families while they have a really fun day on the water with, maybe, a somewhat toned-down speed blast tossed into the mix every now and then to get the kids chirping.

I’m looking at the potential for the Collage to create a new beach and/or lake sailing culture in which energetic hot shoe dudes, as well as young sporting families, can all mingle on the beach, out on the water and share a communal BBQ after the day of sailing. I grew to maturity on the beaches of SoCal watching the brand new Hobie Fleets do this very thing and it was a lifestyle that perfectly fit my beach kid way of thinking. It would be great to see that happen once again. Could this take place in 2009? Hey, I don’t know the answer to that one, but it is fun to think of the boat and its owners in those terms.

There’s a lot going for the Montage/Collage design approach to support such a social event concept. Both boats are affordable to build, they are easily trailered by even sub-compact cars, they make use of “experienced” parts that can be had on the open market for pennies on the dollar when compared to new parts and they are boats that are easily sailed on the first day. This last part is important, as the boat will attract more enthusiasts when they see that they can be sailed with what pretty much passes for beginner’s skills. Just because it can go fast, does not mean it has to be sailed that way. As the owner’s skills grow, the boat’s potential will be there waiting for him.

As a way of introducing the Montage and the Collage designs to the homebuilder market, I’d like to offer free plans to one person. This builder should be able to show me that they have a very strong interest in either design and are willing to build the boat as I supply the plans in accordance with their progress from the previous plan set delivery.

If interested in this offer, you can write me at: or at and make your pitch. The one chosen to receive the free plans will be willing to provide construction photos of their progress and a brief written description as to how things are going. The personal accounts will be published on this website, so that the readers of the site can follow the projects.

Chris Ostlind Lunada Design

This boat created immediate appeal to beginning and intermediate sailors. It offers much of the speed experience of a high performance skiff in a stable and predictable platform that is really tough to capsize. The Weta is one of the first boats to encourage family participation and reintroduces the waterborne fun of the beach sailing culture, established way back in the late 60’s with the intro of the Hobie catamaran.

A brand new, factory built Weta goes out the door for USD $11K. Realistically speaking, this isn’t an in surmountable amount of money for a factory produced, brand new carbon trimaran. It is, however, quite a lot of money for most casual recreational enthusiasts and the folks who like to build their own boats… especially when you consider the rugged economic conditions we all face these days.

The estimated $5600 figure represents a boat with a whole host of brand new parts. For the clever builders out there, the Montage could be even less expensive if they can find a used 470 rig, perhaps a used small craft, or beach cat trailer that could be modified to fit the hull design and even a collection of hardware in good condition. The Montage is a very light boat at right around 235 lbs., so you do not need to buy a heavy duty trailer.

I went back to the drawing table and reconfigured everything so that the longest hull panel was going to just fit on a couple of sheets of marine ply laid end to end. The main hull also got just a bit wider in the process of lengthening the boat. Where the factory boat uses carbon fiber on foam cores for its structure, the Montage will be a 4mm marine plywood design with full fiberglass/epoxy sandwich laminates inside and out. The foredeck and the cockpit seating transitions are strip-built in Red Cedar to give the overall appearance of the boat a smoother, more organic feel than straight plywood panels.

The amas for Montage came from a 16′ trimaran design that I had already done and required minimal re-design to work with this boat. The amas are also designed as multichine ply forms with pretty high volume shapes well forward and a water shedding deck form that will helps to keep them riding high even when driven hard. Ama displacement is 100% of the all-up boat weight when sailing.

Montage Specifications

LOA                                   15′ 6″ BOA                                   12′ BOA main hull                  41″

Main                               110 sq. ft. Jib                                      38 sq. ft. Screacher                      102 sq. ft.

Displacement                 650 lbs. Weight                             235 lbs.

The aka beams are anodized aluminum instead of carbon tubing. The inboard ends fit into fairly burly sockets in the hull and are held in place with quick release pins. Flat deck flanges on the ama ends are welded in place and bolted to the amas. The amas are removable from the aka tubes for repair or maintenance, but otherwise stay mounted, along with the trampolines, as complete units.

The mast is also anodized aluminum. The boat uses the same mast section as the 470 dinghy, which is a Proctor Cumulus section. This mast is available on the used market with a little bit of hunting around. If you want it all and have the money, then there’s a very cool, filament wound Forte carbon spar available with very close specs to the Proctor that will rock your world.

Making these two changes from the benchmark, all-carbon Weta to an aluminum spar and tubing keep the costs down, with but a slight weight penalty over all-carbon parts. If you find a used mast, the savings will be even more substantial.

I have found that the more expensive sailcloth laminates are capable of driving the boat just a bit faster, but for the average recreational sailor, they will hardly ever make a difference compared to more forgiving sails in Dacron. Dacron is much easier to maintain, lasts longer, is a lot more tolerant of UV exposure and can be repaired by any sail loft wherever you go. If the builder of the Montage really wanted to, they could buy a set of sails in something like Pentex laminate instead and they’d have that hot, performance boat look that some desire along with just a bit more zip under sail.

The aluminum aka tubes will be sold pre-bent and ready to install on the amas. If the builder has access to a good mandrel bending facility that can handle the OD/ID specifications of the tubing, they can fabricate their own tubes to supplied specs.

The Montage is designed to be a really fun day sailing machine that can generate near performance skiff sailing speeds while offering a hugely stable platform for recreational sailing. Construction of the boat is very straightforward in marine plywood with glass/epoxy laminates and can be easily built by any sailing enthusiast who has household handyman skills with tools. The Montage has been created to offer homebuilders an opportunity to enjoy this style of family sport boat at a completed cost that is far less expensive than the manufactured version.


Fresh take on the solo16 s, a safe, speedy solo cruising craft for adventurous souls.

After a lot of input from readers of this site, I have completed the modifications to the Solo16 S design that reflect many of their expressed interests.

The Solo16 S now has a bit more displacement as a direct response to suggestions for the use of a small 2 hp outboard and some spare fuel. At the same time, the vaka hull was given additional beam above the waterline and the shear was raised some to allow for mods to the amas.

The amas, themselves, were made slimmer and taller, while retaining the same volume. They now have a slight vee section which gives the boat a progressive resistance increase as the amas are pressed heavily in a gust.

To complete the changes, a sporty all-weather soft cabin has been designed to allow the owner a chance to sail in a wide spectrum of conditions. The new cabin is modular in its approach with the ability to address a multitude of sailing situations.

All panels except the Bimini have generous window areas which are backed by micro mesh screen that is small enough to keep out the No-See-Ums. The PVC windows are zip-out removable and the screens can be rolled-up for maximum airflow through the cockpit. The complete enclosure system allows the owner to mix and match the panels as needed for the best protection from the elements.

When setting up the boat for sailing while on the trailer, the owner simply lifts the ama assembly, rotates and places the ends of the aka tubes into the matching vaka openings and slides the ama into place. The akas are fully seated when their internal, spring loaded snap-buttons click into place. The entire ama assembly is easily handled by one adult with modest physical strength.

In the trailering mode, the complete boat does not exceed 68″ (1.7 m) in width, falling well under every trailer width limit in the world.

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—Chris, Queensland

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…I'm very impressed with the seaworthiness of this little boat. I have been in places I clearly should not have been, and in some very bad weather too…

                   —Andrew, Philippines

Read more sailors' comments…  

…was immediately struck that Mike's design goals closely matched my own. Really liked the look of the curved akas and plans for a wing mast are a big plus.

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This boat…has such style and lines that she'd look totally in place as a sporty tender or toy on the deck of a fine Italian mega yacht.  Very nice indeed!

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" ... the W17 feels like it's flying through the water and air, unlike any other sailboat I've ever been on .... as it slips over the water with such agility and efficiency

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Trampoline rider

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Sailing Boat Plans

Madness Pacific proa fast sailing boat

Madness Pacific Proa

A lightweight Pacific proa for fast cruising or daysailing.

More information

Tenderly is a traditional-looking clinker sailing dinghy that is stable and easy to build

Tenderly Dinghy

A traditional-looking 10-foot clinker dinghy for rowing, sailing and motoring that is stable, handsome and easy to build.

The Eastport Pram is light and easy to row

Eastport Pram

A pretty, light, tough, roomy and easy to build 7 foot 9 inch pram dinghy that can be rowed or sailed.

Nesting Eastport Pram rowing and sailing dinghy

Nesting Eastport Pram

An easy to build rowing and sailing pram dinghy that splits into two nesting sections for compact storage.

Kit-built wooden sailing dinghy - Skerry

A 15 foot clinker style double ended family boat that can be rowed, sailed or motored.

The Skerry Raid is a rowing and sailing boat for coastal expeditions

Skerry Raid

A small, decked, wooden cruising boat for coastal expeditions by sail and oars.

A stable but fast double-ended rowing or sailing boat based on a traditional Maine Peapod

Lighthouse Tender

A stable but fast double-ended rowing or sailing boat based on a traditional Maine Peapod.

Northeaster Dory rowing boat

Northeaster Dory

A 17 foot clinker dory for solo or tandem rowing or sailing.

Southwester Dory sailing boat

Southwester Dory

A lightweight beach cruising and expedition boat for sailing, rowing and motoring, which can also be built as a motor launch without the sailing rig.

The Duo dinghy makes a fun little sailing boat with an unstayed mast and slot-in wings

The Duo is a simple-to-build rowing and sailing dinghy that can nest for easy storage. It makes a good tender as well as a fun sailing dinghy.

The Jimmy Skiff II is a fun and stable wooden sailing boat built from a plywood kit

Jimmy Skiff II

A stable, flat-bottomed rowing and sailing boat that also handles well under motor, for family outings, fishing and day sailing.

Lightweight Goat Island Skiff sailing boat with modern performance

Goat Island Skiff

A simple lightweight sailing boat with excellent performance.

Family home made sailing boat in a marsh


An 11 foot 7 inch clinker style pram dinghy that performs beautifully when rowed, sailed or motored.

Take-apart Passagemaker sailing boat

PassageMaker Take-Apart

An 11 foot 7 inch clinker style pram dinghy that can be nested to save space.

Pixie beach catamaran by Richard Woods

Pixie Beach Catamaran

The Pixie is a fun car-toppable beach catamaran that sails well with one or two crew and is popular among people who are new to sailing catamarans but who are not that interested in racing.

Kit for a trailer sailer cruiser called Pocketship

A fast-sailing 15 foot cabin cruiser with a dry and commodious interior.

Autumn Leaves wooden canoe yawl designed for engineless coastal cruising by sail and oars

Autumn Leaves Canoe Yawl

A modern wooden canoe yawl for engineless coastal cruising by sail and oars, designed to be affordably built by an amateur.

The Faering Cruiser is a serious rowing and sailing boat for coastal cruising

Faering Cruiser

A serious rowing and sailing boat for coastal cruising, with a small cabin aft.

The Nesting Expedition Dinghy is a very compact wooden sailing boat for beach cruising

Nesting Expedition Dinghy

A very compact sailing beach cruiser that can be nested in three sections for storage in a corner of a garage.

Kit for a proa mbuli

Mbuli Pacific Proa

Plans for a very light and fast Pacific proa beach cruiser.

The Mebo 12 nesting dinghy for day sailing and cruising

A versatile nesting dinghy for day sailing and camp cruising with a comfortable double berth.

The Outrigger Junior is a fast sailing canoe with a huge lateen sail

Outrigger Junior

A finely-proportioned and lively sailing canoe with a huge lateen sail for lots of speed.

Quattro 14 racing beach catamaran by Richard Woods

Quattro 14 Beach Catamaran

A lightweight single-trapeze beach catamaran for racing that is easy to build.

Quattro 16 racing beach catamaran by Richard Woods

Quattro 16 Beach Catamaran

A high performance twin-trapeze racing catamaran that is lightweight and easy to build.

Strike 15 racing trimaran by Richard Woods

Strike 15 Trimaran

The Strike 15 is a high-performance racing trimaran with folding outriggers designed to be easy to sail by older or less experienced sailors and easy to launch from the beach.

Strike 16 trimaran by Richard Woods

Strike 16 Trimaran

The Strike 16 is a dry, comfortable trimaran for four-person day-sailing or two-person weekending.

Strike 18 trimaran by Richard Woods

Strike 18 Trimaran

The Strike 18 is a dry, comfortable trimaran for family day-sailing with an optional, removable, cabin top to convert it into a pocket cruiser.

The light and stable Tryst 10 ft trimaran

Tryst Trimaran

A light and stable 10 ft trimaran that is very easy and fun to sail and can nest for compact storage.

The Zest is a single-handed racing dinghy with a plywood hull and comfortable sitting-out wings

Zest Racing Dinghy

The Zest is a single-handed racing dinghy with a plywood hull and comfortable sitting-out wings.

Beth is a lightweight sailing canoe designed by Michael Storer

Beth Sailing Canoe

A light sailing canoe combining a traditional rig with a high speed hull.

The Kombi is a dual-purpose wooden canoe for exciting sailing and paddling

Kombi Sailing Canoe

A truly dual-purpose wooden canoe for exciting sailing and family paddling.

The Viola 14 is a lightweight sailing canoe with dinghy performance

Viola Sailing Canoe

A lightweight plywood sailing canoe with the performance and stability of a good sailing dinghy.

Oz Goose low-cost plywood sailing dinghy that is easy to build and fun to sail

A low-cost sailing dinghy that is easy to build and fun to sail for clubs, regattas and sailing lessons.

The Trika 540 trimaran can be built from plywood at home

A pretty little demountable trimaran designed for speed and easy handling by one or two people on lakes, rivers and bays.

The TriRAID 560s is a light and fast adventure trimaran for raid competitions

TriRAID 560s

A light and fast adventure trimaran for 1-2 people designed for raid competitions.

A kayak fitted with outriggers

Sailing Outriggers

Outrigger floats to turn a canoe or kayak into a fast sailing trimaran.

The Eureka canoe sailing with drop-in outriggers

Drop-in Outrigger Plans

Light and easily removable outrigger floats that turn a canoe or kayak into a formidable sailing boat or a stable fishing platform.

Mini drop-in canoe outriggers by Michael Storer

Mini Drop-in Outrigger Plans

Small outriggers for a sailing canoe, to aid stability for learners and for extra safety for more adventurous sailing.

Drop-in canoe sailing lug rig by Michael Storer

Drop-in Canoe Sailing Rig Plans

A simple lug rig that can be added to an ordinary canoe or kayak to add the ability to sail.

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West Mersea Duck Punt PDF Free Plans

West Mersea Duck Punt PDF Free Plans

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Making Hand Screw Clamps Free Instructions

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Tape & Glue Process Free Instructions

Lisa b good - free plans.

Folding Mast & Boom Free Plans PDF

Folding Mast & Boom Free Plans PDF

Slipper PDF

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Drifter 12L Free Plans

Drifter 12L Free Plans

Wanigan (free plans).

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wood trimaran sailboat plans


Yacht design.



We provide stock boat plans for both monohull and multihull sailing vessels, including sailing skiffs and sharpies. Our designs mainly feature timber construction, in plywood or cedar strip plank composite construction, using the W.E.S.T. system (wood epoxy saturation technique). Our designs are intended mainly as cruising boats, although several have done well in racing. All designs are suitable for amateur boat builders.

Monohull designs by Mike Waller Yacht Design.png


 multihulls  , photos from our builders.

Waller TS 540 by Mike Waller Yacht Design -  under sail

Photo galleries are provided on each design page where available

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Sailboat Plans

Free Sailboat Plans

A selection of some of the Free Sailboat Plans (pdf) that were published in magazines such as “Popular Mechanics”, "Popular Science" and the "Boat Builder Handbook".

If you need help with lofting out the plans click here for an article here which should help.

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Open/Dayboat, Free Sailboat Plans

Everyone who digs boating has heard of the Hobie Cat, the sleek little catamaran that burst on the scene and captured the attention of all the fast-action sailors.

hobby kat free boat plans

Marked by asymmetrical hulls and special trampoline supports, the Hobie can reach speeds above 20 mph and perform with a rare agility.

But it has one drawback.

It costs mucho dinero.

Thus, we introduce the Hobby Kat, sailboat plans, a build-it-yourself version of the “Hobie” that should cost from half to a third of the commercial version. If you have the moola, of course, go for a Hobie and have the time of your life on the water.

If not, try our Hobby

The homebuilt is not quite the same.

But she sails sweetly and fast—qualities which have made the “Hobie” popular

Even in a light air she’ll slip through the water at a fast clip.

She has no centreboards, leeboards or keel, and needs none.

The inside of each hull has built-in lift, like an airplane wing, so that as the boat heels and one hull digs in the boat is pulled back to windward.

Click Here for the Plans

She can run in very shallow water and the rudders kick up for beaching.

You can carry her on a trailer or even disassemble her.

tern free boat plan

Many a “stink pot” addict will take a second look at Tern because she planes in modest breezes, is easy to handle, and her streamlined prow arid pod-shaped, “inland scow” type hull offer slight water resistance. Then too, there’s a charm about the tiller of a sailer that’s not matched by the wheel of a motor-powered boat. Part of it is the challenge of making the most of nature’s free-wheeling breezes. Even with her 72sq.ft of sail, this Free Sailboat Plan is remarkably stable, and packs as many as four persons aboard

For thousands of inland lakes, Tern is the answer to sailing water sport, she is rugged and easy to launch

And she’s remarkably easy to build.

sailboat plans

Falcon is a small, speedy, sporty sailboat which handles well. Tests on the original Falcon showed that she could easily out-distance boats of comparable size such as the one design class Snipe and Comet sailers.

And she will pace neck and neck with 18 footers with considerably greater sail spread.


This strong, beamy, eight-foot pram may be sailed either cat-rigged or sloop-rigged.

The dagger-board may be adjusted forward to balance the helm when sailing with the addition of a jib sail.

Oars or a small outboard motor may also be used to power this versatile Free Sailboat Plans.


Dart” is a small two or three person sailing craft, designed for use on protected waters such as bays. lakes, rivers or wherever sheltered waters are found. Its construction will repay the builder handsomely and provide a fast sailing craft, light in weight, easily transportable and cheap to construct with all difficult joinery eliminated

It provides thrilling and economical sport.


The 'Crescent', designed by C. T. Allen, is the ideal sailboat for day sailing on a small lake, river, or protected waters of a bay.

Centreboard design (Fig. 2) reduces Crescent's draft, so Shallow is not a problem.

Its broad beam of over 5½ft. makes it an ideal family boat because there is room for a cockpit large enough to accommodate four adults or two adults and three kids, and side and forward decks big enough to stretch out on when sun bathing.

"Jewel" is a 16' Crescent Sailboat being built by Mike Allen from the free sailboat plans by C.T .Allen in the 1958 "Boat Builders Handbook". And what a superb job Mike is doing check out his photos here .

Click Here for the Free version of the Plans


Sailing enthusiasts and backyard boat builders are not likely to find free boat plans for a sailing pram that can be built faster, lighter, stronger, or less expensively than Graefin-10. Two men can begin work on a Friday evening and have a smart, lively 10-ft. 85-pound sailboat in the water by Sunday evening (it’s been done).


Zephyr Is a refinement of a type of boat developed by the English for use in the rough open waters of the English Channel. Not only is it fast under sail, but it can stand up under punishment. And it’s light enough to be easily loaded atop an auto or light trailer.


breeze baby

Skimming off a brisk wind or with the wind abeam, Breeze-Baby actually planes with one person aboard. Despite her rowboat lines that make her easy to build, she handles easily under her simple sail, an ideal first boat. Simple lines are adapted to plywood construction that’s strong, light and that keeps Breeze-Baby’s bilges dry

You can take her with you atop your car or on a lightweight trailer for summer fun wherever you vacation or get in a week-end’s sailing.

cats paw

Cat’s Paw is easy to build because of the straight-sided hulls. The sheer line is flat and that simplifies building the form. Bow and stern are straight, so there’s no cockeyed bevel to fit and fuss with

She Is an Ideal boat to learn or practice sailing in because she will forgive so many mistakes.

Cabin Cruiser, Free Sailboat Plans

free sailboat plans

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Penn Yan Boats

May 28, 24 07:51 AM

wood trimaran sailboat plans

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Woodboat questions and answers forum for all Wooden Boat owners, advice and opinions on all aspects of wooden boat building, restoration and maintenance.

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wood trimaran sailboat plans

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A guide to the epoxy resins and sustainable enrtopy resins to use when building wooden boats with marine plywood.

Epoxy Resin for DIY Wooden Boat Building.

A guide to the epoxy resins and sustainable enrtopy resins to use when building wooden boats with marine plywood.

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wood trimaran sailboat plans

I am perfectly aware that the majority of Wooden Boat aficionados are sensible folk. However, I need to point out that I am an amateur wooden boat enthusiast simply writing in order to try to help other amateur wooden boat enthusiasts. And while I take every care to ensure that the information in DIY Wood is correct, anyone acting on the information on this website does so at their own risk.

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Boats plans for self builder - in metric

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Jérôme Delaunay Naval Architect - Nautline design office in naval architecture: I design and draw custom boat and sailboat plans, in plywood epoxy and other materials. Sailboat plans for shipowner construction and professional construction. Plans of multihulls, plans of catamarans, praos and trimarans. CFD hull study, digital hull basin, engine optimization. I offer scantling calculations, keel calculations, mast and rig calculations. Composite sampling calculations. DXF digital plans for CNC digital cutting.

May / June Issue No. 298  Preview Now

wood trimaran sailboat plans

Category Sailboats

11'2" shellback sailing dinghy.

Stitch and and glue okume planking, copper wire and MAS epoxy. Ash gunwales, mahogany transom and sassafras seats. White pine spars and balanced lug rig. Design slightly modified with float chambers fore and aft. Basic trailer .

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Leyden , MA 01337 United States

11'2" Shellback Sailing Dinghy


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1949 Baltzer Voyageur 33'

1949 Baltzer Voyageur 33'

Marisol Skiff Gunter Rigged Daysailer

Marisol Skiff Gunter Rigged Daysailer

50 years of wb, sails, more.

1990 Bridges Point 24

1990 Bridges Point 24

From the community.

14’ Wooden Day Sailer

14' Wooden Day Sailer

11'2" Shellback Sailing Dinghy

Stitch and and glue okume planking, copper wire and MAS epoxy.

Register of Wooden Boats

TULIP, gaff rigged centerboard knockabout sloop under sail in Bluefish River, Duxbury, MA, USA

TULIP is a 25′ gaff rigged knockabout sloop. Classic George Shiverick design.

MARTHA PRIMROSE close hauled


In 2012 Ashley Butler was in Cornwall to be found building two comparable yachts, one for himself

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  1. Strike 18 sailing trimaran

    Strike 18 sailing trimaran. The 18ft STRIKE is a sailing trimaran design that uses a 16ft beach cat as the outriggers/amas and rig. The main hull is plywood and has a dory shape that is extremely easy to build. The cabin top is removable to convert a fast day sailing boat that sits six in dry comfort into a simple pocket cruiser that sleeps two ...

  2. 3-Fold 6 plywood trimaran by Dudley Dix Yacht Design

    The Threefold 6 is designed to be a safe and lively boat to sail singlehanded or with a crew, ideal for comfortable gunkhole cruising in relatively protected waters. Follow these links to print a material list or a drawing list for this design. with the aluminium folding system. Oleg's boat with new colour scheme.

  3. Trimaran Plans

    The larger TRI's and CAT's have full radius hulls.With no lofting you build right away. The DESIGNER'S book TRIMARAN and CATAMARAN CONSTRUCTION is part of the plans (over 21') and covers all phases of construction. Plans are leased to build ONE boat, NO time limit. Tri-Star designs are proven designs, sailing the seven seas since 1964.

  4. Mark Smaalders Yacht Designs

    Consulting. Deck construction and interior for a 32' Lyle Hess cutter. Making changes to an existing boat, or to a set of plans? I can help with repowering, hull and rudder changes and repairs, and new interiors. I can also provide advice if you are buying a boat, used or new. Hull and ama modifications for a 40' trimaran.

  5. Zeta 14ft Trimaran Plans Download

    Zeta 14ft Trimaran Plans Download. About Woods Downloadable Plans. Free Study Plans - Click HERE. Zeta is another of my small, hard chine plywood trimaran, but this time it is a fast singlehander with the emphasis on being as simple and quick to build as possible. The photo below shows my own Zeta on its maiden sail off Port Townsend, Wa, USA.

  6. Plywood Trimarans

    Beam overall main hull - 28″. Depth of hull max - 12". Weight - 48 lbs. or less. Displacement - 335 lbs. This boat is built in the S&G style of construction in 4mm marine ply with 6 oz. plain weave fiberglass set in epoxy on the inside and outside of the hull for full laminate sandwich strength.

  7. Small Trimaran Design

    Small Trimarans Report. Back in 2010, sailor/naval architect Mike Waters published a 22-page report covering 20 small trimarans. It includes charts, graphs, photos, and critical objective reporting on many of them. Read more…. Review of nine Small Trimarans. Mike Waters' review of nine small folding trimarans 14-20 feet including six ...

  8. Catamaran and Trimaran Boat Plans

    Genuine Hartley Boatplans and Samson Boatplans are only supplied by, New Zealand. Catamaran & Trimaran Boat Plans from Hartley Boats make it a reality to build your own multihull at home. Build with Plywood or Fibre Glass. 12-35 ft plans.

  9. Sailing Boat Plans

    Plans for building your own wooden sailing boat from scratch including dinghies, cabin cruisers, catamarans, trimarans and proas. ... A small, decked, wooden cruising boat for coastal expeditions by sail and oars. More information. ... The Strike 15 is a high-performance racing trimaran with folding outriggers designed to be easy to sail by ...

  10. Plans & Kits

    Wood; Bedding Compounds & Sealants; Hardware . All Hardware; Sailboat Hardware . ... "Instant boat building" take on a new meaning.Watch the video clip: A flat surface is sufficient to build the catamaran. ... About Woods Downloadable Plans The Strike 2 trimaran is akin to a scaled up Strike 15, rather than a longer Strike 18. So is ...

  11. Plans & Kits

    To download these plans, click HERE The Drifter 12 is a small trimaran that can be paddled or sailed, and is perfect for exploring rivers, bays, and lakes. The rig is simple, using a windsurfing mast.

  12. Plans For Catamarans And Monohulls

    We provide stock boat plans for both monohull and multihull sailing vessels, including sailing skiffs and sharpies. Our designs mainly feature timber construction, in plywood or cedar strip plank composite construction, using the W.E.S.T. system (wood epoxy saturation technique). Our designs are intended mainly as cruising boats, although ...

  13. Sailboat Plans

    affiliate links Cabin Cruiser, Free Sailboat Plans Petrel You can build this 16ft boat as a day sailer or an overnighter with cabin. Petrel is a Free Sailboat Plan that fulfils the greatest possible variety of uses in one model, offering the builder either an open-cockpit racing craft with comfortable accommodation for day sailing or a snug cabin model with accommodation for overnight trips to ...

  14. Boat plans, yacht designs & boat kits from Dudley Dix Yacht Design

    Boat plans, yacht designs and boat kits for boats built from wood epoxy, plywood, fiberglass, steel and aluminum, boats plans for round bilge, multi-chine and radius chine boats, from dinghies to cruising sailboats and power cruisers, rowing shells, boatbuilding advice and boatbuilding photographs

  15. Nautline : Boat plans, plywood sailboats plans, pocket cruisers

    Two sailboats plans in one ! A pocket cruiser with a double chines hull. - LOA 4.50 m x beam 1.80 m - SA 12 m² - Weight 295 kg - Weight full load 580 kg - Cruiser for three ( CE D/3 protected waters ) One double berth, a single bunk, galley and toilet locker. Full plans in PDF with 3D building guide and photos.

  16. Boat Plans

    Sep 6-8: The Wooden Boat Festival in Port Townsend, WA; Oct 5: Mid-Atlantic Small Craft Festival; Upcoming Boat Shows. Jun 28-30: WoodenBoat Show at Mystic Seaport; Sep 6-8: The Wooden Boat Festival in Port Townsend, WA; Oct 5: Mid-Atlantic Small Craft Festival; Oct 10-14: Annapolis Sailboat Show; Upcoming Classes. Jun 1: Boat Transport ...

  17. Arthur Piver

    Arthur Piver (/ ˈ p aɪ v ər /; "Piver rhymes with diver"; 1910-1968) was a World War II pilot, an amateur sailor, author, printshop owner and renowned boatbuilder who lived in Mill Valley on San Francisco Bay and became "the father of the modern multihull."

  18. Phil Bolger

    Philip C. Bolger (December 3, 1927 - May 24, 2009) was a prolific American boat designer, who was born and lived in Gloucester, Massachusetts.He began work full-time as a draftsman for boat designers Lindsay Lord and then John Hacker in the early 1950s.. The Gloucester Light Dory, one of Bolger's better-known designs. Bolger's first boat design was a 32-foot (9.75 m) sportfisherman published ...

  19. Boat building

    The schooner Appledore II under construction. Boat building is the design and construction of boats (instead of the larger ships) — and their on-board systems.This includes at minimum the construction of a hull, with any necessary propulsion, mechanical, navigation, safety and other service systems as the craft requires.. The boat building industry provides for the design, manufacturing ...

  20. 11'2" Shellback Sailing Dinghy

    WoodenBoat is a bimonthly magazine that delivers a blend of traditional and evolving methods of boat design, construction, repair, and related crafts—as well as profiles of unique boats and people. In each of our lavishly illustrated, carefully researched and written issues, we aim to educate and inspire our readers while conveying quality ...

  21. Motor torpedo boat

    MTB 102, an experimental design, served in World War II.During the Dunkirk evacuation it acted as a temporary flagship Israeli MTB formation, c. 1967. A motor torpedo boat is a fast torpedo boat, especially of the mid 20th century.The motor in the designation originally referred to their use of petrol engines, typically marinised aircraft engines or their derivatives, which distinguished them ...

  22. Wooden Boats Plans A Second Catalog of Building Plans Build A ...

    Wooden Boats Plans A Second Catalog of Building Plans Build A Boat 30 DIY. Brulla Girl (1103) 100% positive; Seller's other items Seller's other items; Contact seller; US $7.37. or Best Offer. Condition: Good Good. Buy It Now. Wooden Boats Plans A Second Catalog of Building Plans Build A Boat 30 DIY. Sign in to check out.

  23. Trimaran Composite boats for sale

    Find Trimaran Composite boats for sale in your area & across the world on YachtWorld. Offering the best selection of boats to choose from. ... hull-wood. Wood. 35 boats. Sort By: Recommended. sort-by. Recommended. sort-by. Listing Date: New to Old. ... Chris White Designs | Puerto Vallarta, Mexico. Request Info; Price Drop; 2008 Farrier F-9A ...

  24. Harbour Hotel Southampton

    Our flagship hotel and spa. Climb aboard our super-yacht-inspired hotel and discover exciting moments in the city. Enjoy a hive of activity aboard our destination rooftop bar, or award-winning seafood dining at The Jetty while you soak up idyllic views of the Solent.