Sailing, Watertribe and boat building

Boat construction

The marine environment is actually pretty harsh, and materials used have to be able to withstand sun and salt water, as well as accommodate the forces created by wind and wave, sails and crew. It turns out that a sandwich of epoxy and wood is pretty effective for the weight… you have to spend considerable effort (and $$) to get better results from space age materials.

Plywood is an excellent material from which to build hulls and bulkheads, but it only bends in one direction… complex bends are better with strips of wood sequentially added, as in strip-built or planked vessels. Designers are well familiar with plywood, and by curving mating halves of a hull, can generate a variety of fast, strong and attractive boats.
Epoxy joint

Fitting out

Once the boat is essentially formed, then comes the job of creating the ends of the boat, installing decks and seats, rudders and centerboards or daggerboards for directional controls. Then the joints are made strong and durable with epoxy fillets, and the whole boat coated with epoxy, and possibly fiberglass cloth. Next rowing aand sailing hardware.
Stitch and glue

Stitch and Glue Construction

In the image, wire ties are being used as temporary "stitches" to hold two sheets of plywood together until epoxy can be slathered on the inside of the joint, and then smeared carefully into a fillet. The fillet is rounded, spreading forces from one surface to the other much like an arch distributes forces in a building. Epoxy bonds the surfaces together, and seals the wood at the same time, making it the "cement" of choice for wooden boats.