The Olo of the Sun will have a 13.5 inches deep spitfire cutaway fin, made from 6 layers of 3mm laminated paulownia. Here's the first layer, the panel will also make an 11 inch spitfire fin for a smaller board.
The underside of the panel is held together with masking tape at the joins, this also stops the resin from running out. Clear epoxy resin as applied:
Ready for the final and sixth layer:
