RE: Idea what this plane is/was
I agree that thewhole tailis wrong for a Falcon 56. I know he added the fins on the tips, for when he carried gliders up on it. He may have changed the rudder then also. He later added the floatsand flew off snow andwater.
He could have plan built it, he did plan build others I know that. and he did have it back in the early 80's. I can not find any part numbersanywhere. I bought it from him in about'89
I guess it is, what itis, and it flys nice!
Pat