Klaus, Thanks, I will use it for the dagger board. I ran the NACA 0012 through Profili and the Coefficient of Lift is terrrible after the AoA gets more than 14 degrees... I wonder if thats the software limitation or the airfoil limitation. Going to NACA 0015 buys you another 2 degrees to 16 degrees before Cl goes south too. Change in Drag with AoA 1s linear but climbs steeply after about 8 degrees... shows how gentle you should be with the rudder.
Scarecrow, I followed the LR2 project in the A cat class and this is what they used. I tried a sheet of 6mm and it is really floppy before the carbon is applied. The 10mm is much easier to use and gives a n1ce fair hull when you glue it up on the mold. I'm still on target to get under 23 kg and my big problem is laying up the cloth on the vertical sides inside the hull.... Its a major pain!
