Whats the worst flying plane you ever had your hands on??
A beautiful Top Flight F8F Bearcat that I bought already built, put a Supertigre 90 in it, cg according to plans. First flight, took off ok after a long run, after reaching a comfortable height, throttled back, fell like a rock. Pulled out just before it hit the ground, minimal fuse damage. Fixed it and added more nose weight. Second flight, took off, reached good height, again throttled back, fell like a rock again, wouldn't pull out. It hit so hard, the wreackage bounced two feet back into the air. After some post crash inspection, someone discovered the wing had been built with the semi-symmetrical ribs upside down. Since then, I build my own.