Hey, Don;
& others: I've been wondering about why you couldn't use pink/blue foam instead of wood for bracing. & maybe the floor, & possibly the firewall, although any holes would need to be sleeved w/plastic tubing 1st, so's the foam wouldn't crush. Since we're encapsulating either the foam or wood entirely w/resin & glass, netting us basically a fiberglass tube, the only difference is the substance inside for the forms' shape.
I get that polyester melts the foam, but vinyl-ester & epoxy don't - or so I'm told. I'm thinking along the lines of EAA construction here, but have only seen/read a little bit of that, & need to do more. I'm partially thinking lighter weight here, (for a feather-weight project), but also ease of carving, etc.
I suppose that for the best strength/ lightness, I should use helicopter Al-honeycomb & magnesium everything, but don't have access to, nor the cubic coin, for either.
Don, since you've just got out of the boat-business, can you shoot this down, please?
TIA.
Marcus...