Sardine Twin 5.5 Full Plans

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A bridgedeck coastal cruising catamaran

For Sardine Twin Study Plans, click HERE

Sardine twin has been designed from the hull lines of the central hull of the Trimaran Sardine Run. She is built in France by Sardineboats, and plans can be ordered alone too.

The aft part of the hull has been re-designed to fit with the catamaran version.

She gives us a very simple catamaran where 4 berths are possible, always with an extraordinary! headroom of 1.30m, with a lot of storage.

A porta potty can be added, and a little stove too.

She is designed for suny areas, with 18m2 of deck!

She is equiped with a central rigid area made of plywood.

A simple outboard case is bolted at the center line.

Crossbeams are made of aluminium tubes, and the mast could be a second hand one, if taken from an old hobie 18 or equivallent.

2 centerboards are sliding in their trunk, where trunks are integrated in the outside hull shell plating, to gain volume for accomodations.


Length over all : 5.70 m / Hull length : 5.50 m / DWL : 5,50 m / Beam :3,53 m
Draft : 29cm / 120cm / Displacement : 370 kg (light conditions)

Pivoting rudders / Centerboards, vertical sliding ones, on each ama
Headroom: 1,30 m
Sail area: Mainsail + Solent: 18,75 m2 / Mainsail : 13.85 m2 / Solent : 4.9 m2
Gennaker : 16.5 m2 / Spinnaker (asymetrical) : 22 m2
4 berths / Engine : outboard 2-6hp

She is a stich-and-glue contruction, a very simple way to built your home-built craft.


Hull-deck: plywood 8mm thick - glass - epoxy resin / Unsinkable with foam. Total of flottability 950l / Beachable / Bolted aluminium tubes beams
Trailerable / Category of conception C3 D 4


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