Trimaran 39

Classic design but ambitious performance

Naval architect Philippe Rivière, a specialist in multihulls, is presenting a harmonious trimaran of classical inspiration with bows that are refusing to be inverted...

Trimaran 39

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Published 26/04/2021

By Emmanuel van Deth

Issue: 177

Published: may / june 2021

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The Trimaran 39 intended to be built in foam sandwich or strip planking by a shipyard (Technologie Marine are planning on launching the production of the first example) or for amateur construction, has a rather sensible rig – the masthead sits 50’6” (15.40 m) above the water and has an upwind sail area of 915 square feet (85 m²). However, performance will be on the cards, as the boat will be very light - 3 tons - and served by voluminous floats. The slightly V-shaped bottom should allow for comfortable passage in heavy seas and above all ensure the boat is very tolerant in the event of too much breeze, especially given that the rear arms, like the cockpit, have been raised up by 4” (10 cm). There are optional foils but it would be possible to be over-canvassed on this multihull... On deck, the vast cockpit extends along the aft beam with two offset and protected helm stations. Two watch-keeping stations are located forward of the companionway - they are sheltered by a large sprayhood. Particular attention has been paid to ease of access and safety on deck, with side-decks on each side of the coachroof, which is slightly curved and not very high. Inside, there is an L-shaped saloon, a navigation area, a galley, two double berths (4’8”/1.42 m wide at the back and 5’/1.53 m at the front) and the heads compartment. The architect wanted to offer satisfactory headroom and sufficient height over the bunks to be able to sit upright.

Architect: Philippe Rivière

Material: foam sandwich or strip planking

Length: 39’ (11.90 m)

Beam: 32’10” (10 m)

Light displacement: 6,600 lbs (3 t)

Air draft: 50’6” (15.40 m)

Sail area: 915 sq ft (85 m²)

Engine: 30 HP

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