You are suggesting 2 layers of cloth but I am only planning to have one layer of 200g/sqm outside and inside. Most people think thats enough and I cant get a lighter cloth economically. A lighter carbon coth would cost more because I neeed 2 layers.
I'll probably go and measure some daggerboards tomorrow.. NACA 0012 would be a good starting point since I know its been used for this purppose before. And NACA 0015 for the rudder...
I thought we dont go fast enough for foils to cavitate... Are you modifying the foil for a higher critical angle so the foil doesnt stall? Or at least to minimise the laminar separation bubble..
Another question I want to ask you since you are working in aviation. Do you think it would help rudders work at higher angles if we introduced a turbulator at the leading edge. EG A strip of sandpaper glued to the leading edge or even roughing the LE with 60 grit sandpaper?
