I'm investigating a scruffy I-36 and I have a question about their construction I hope someone can answer. I don't want to bother with signing up for the I-36 association just to ask one question.
I unzipped a couple of the headliner access panels and it appears that the deck is not plywood CORED so much as plywood BACKED. Since I was looking at the area under the after cabin top winches my first thought was it was a large plywood backing plate but I could find no evidence of an inner skin of fiberglass.
I could only examine a couple of relatively small areas but they were a lot bigger than any backing plate I've ever seen.
Does anyone know if this was in fact the way at least the early boats (1972) were constructed - the exterior glass surface with plywood "core" underneath and no inner glass skin?
An "open faced sandwich" so to speak.