"Thomas Wentworth" ) writes:
I was looking at a site that showed a home builder's sailboat. He had some
plans, set up a frame on the ground and made a cross piece frame ..

He used plywood to sheath the boat. Epoxy on the plywood.

Two things ... when building a hull, do you first need a backbone,,,
keel,,, or whatever??

Called a "strongback" it gives stability to the work. most boats need
something. even some stitch and glue boats need something to hold the shape.


Another ,,, if you use plywood, can you glass over the ply and the ply
becomes a core?


Caled "encapsulation" there should optiminally be three layers of
resin-soaked fibre to keep water out of the wood on a boat kept in the
water.