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Small trimaran lover Eric Marechal, who lives in France, has shared info about several small tris he’s come across. And now he’s done it again. Here is the first sailboat (below).

Although the boat was built by a gentleman of French decent, he is identified as being from “Madagascar,” an island that used to be a part of France’s old empire, off the coast of Africa.

Eric used that Google webpage translation thing-y in order to try and share what the builder is saying to the world. The translation is just so-so, but I’m going to let it stand as is. (I’m reminded once again that the French are really into trimarans. I wish it were so here in North America … so let’s try and change that ;-).

(Thanks once again for sharing this with us Eric!) — Small Tri Guy

Hi Joe,
just have a look at this !
It’s glass-polyester, and I think 4 mm soft medium (sold as “isorel” in France) for the male mold. I tried a “google translation”, with some corrections :-(

— Eric Marechal

Isorel/Trimaki Trimaran (in France)

“Hulls glass-epoxy, bridges, structures and arm epoxied plywood Rigging and main sail Dart 18 Fins fixed for sailing on the very shallow lakes of Pangalanes Large trunk in front to allows sleeping.

Draft of the central hull is 15 cm (6″) empty and 20 cm (8”) at full load. In the latter case, the stern flush water (?). Arms are in full CP … theoretically not terrible, but a more satisfactory achievement in strength to weight, is not feasible with the limited technical means available to me (no clamps, for example). They are 20 kg each and are largely inspired by those of the cross 18, but in one piece. They are embedded in the central hull and hold by a lashing. They are bolted to floats on the protruding bulkheads. (Click on the image below to enlarge it).

This is not a racing machine. I have provided for 200 kg payload: two adults, two children, outboard engine and equipment. The curve of areas (buoyancy) of the central hull is very full at the stern, not obliging the familial crew to move forwards. So empty, it will lift the rear.

The male mould is in masonite (?), but poor quality, and rotted by humidity. I was challenged to make the joints between the plates and have lost 50% of the purchased hardboard. It tore during the bending. It is simply stapled with a staple gun.

The hull is twill (?) 600 g / m² and epoxy. The nominal sample is 2400 g / m², almost everywhere. Bottom and bow are twofold. The empty shell weighs 50 kg, which is logical, the development is 10 m².

I wrapped the moulds with vynile film, bought as a roll. It doesn’t does stick on epoxy. The interior of hulls has to be sanded after removal.” — (From Vincent, Madagascar)