Ollie,

Your comments in orevious posts re the 6063 got me interested in giving it a look see. I loaded the coordinates for both the 6063 and the MH33 that I have used quite a bit. I have a pretty good airfoil program that will let you masage the foil then you can print templates etc. It's a freebe that I picked up a while back. So, I sized both the mh33 and the s6063 to the same cord and printed them out for a comparison. Big shock to me! These foils are so close that they are very close to being identical.

Next I loaded them into CompuFoil. CF reports that for the 6063 the zero lift angle of attack is 1.36 deg. For the mh33 it's 1.22 deg. Verry close.... Ideal angle of attack for the 6063 is 0.37 deg. for the mh33 it's 0.39 deg. So, would it be safe to assume that if the engine and stab are at zero zero that the wing should match the "ideal" as stated by CF? What's your take on this "ideal angle of attack" reported by CF? Rgds, Jeff.....