Electric version The $10 RC nitro plane made from corflute Xjet utube video. I used a 1300KV motor, 1000mah 3s battery, 2 x 9g servo, it flys quite well.
The photos show an additional piece on the top wing, being new to model RC planes, I have seen this on one other home build, but can you a) tell me why and b) tell me the size that you used if that is critical please.
It makes the wing a KF (Kline-Foglemann) section,which supposedly improves the aerodynamics,as against a flat plate wing..I don't think the size is too important,but most seem to be 1/4 to 1/2 of the wing chord.