Duracell project: Plywood and sandwich sail dinghy decking


Matt makes good progress building the tender for his Duracell sailboat. Between joints, keels and decking, the glued-stitched plywood dinghy takes shape.

Fillet joints and appendage manufacture

Matt and the rest of the Northwest Maritime Center trainees continue building their Scout 14. The interior of the dinghy receives its tapered joints on the seams of the various planks and a layer of fiberglass.

At the same time, the keels are sandwiched with a foam core on marble. Similarly, rudders and daggerboards are sandwiched. By building them vertically, the appendages remain smooth and more easily symmetrical.

Stratification of hull, fittings and deck

The hull is then turned over. After sanding, it receives two fiberglass skins with epoxy resin on its living and dead parts.

The keel is then installed, glued and laminated to the hull. An old sail batten is glued in place as a sacrificial heel to protect the exposed foam face, which is the one that will be ragged once the boat is dragged onto the beach.

The keel shafts, an endless parallelepiped made of plywood, are then glued to the longitudinal reinforcements

Finally, the sandwich deck is glued in place, followed by an all-round fillet joint.

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