RE: Biplane with only bottom wing?
I took a fusalage from a balsausa phaeton90 with a gas engine & mounted a wing from a uproar 60 to make it a low wing. It flew great after I put a little incedence in the rear of the wing. Unfortunately I nose dived after radio failure & totaled it out. Everyone laughed at it cause it looked like a trash job. But thats flying.