Main mast partners . This component holds the mast up so has to be strong.
3x layers of half inch ply followed by the deck (2xlayers 3/8”) Because of the raised deck this over nine foot long by two foot wide making it quite heavy to handle on your own! I thought about making a mould to laminate it over but concluded that it would consume too many materials. It turned out easy enough to mold it in pisition on the boat. Starting with scarfing the ply to make three 10’x 2’ sections. I put one of these in position on the boat and then spent some hours putting props under it from the cabin floor/galley units/water tanks pushing it up into a smooth curve that i was happy with. It looked quite a lash up but worked well. Once the props were in i took the ply off and added a mass of epoxy to create the usual sticky laminate sandwich and clamped into place.