Tooling, Pass Type and Production method for Composite Hydrofoil

[komatias]

I live in a desert, they have no foam whatsoever anywhere and the Marine ply - or importing G10 is about my only options.

Anyone on here who has cut plywood care to comment?

How about making your own foam using the expanding polyurethane stuff used to keep door frames in place while building?

[dachopper]

I have used that stuff when I made my first board, it's not rigid enough. The core needs to be rigid like solid wood plastic metal or composite