I have started working on the rudder. I bought an extra sheet of 10mm mahogany marine plywood for this. Using the template from the kit, I sawed out the necessary four layers.
First I painted everything with epoxy. I then waited a while to allow the wood to soak in.
I put on thickened epoxy for gluing. A simple tool to get an even layer is a comb. I used wooden dowels to position the layers exactly.
Along the trailing edge of the rudder I added a 2mm thick strip of fiberglass laminate. This allows me to form a nice sharp trailing edge.
When all the layers are on top of each other, press the whole thing together nicely.