I am building a Flying King right now for a 20cc gas engine. The engine is a RCGF rear carb 20cc from Henry at Aerovate. The engine was bought from him while he was a U.S. distributer last year. I ran about three tanks through it to see how it ran and to check the needle settings. It will be a very good motor for the F.K. The model was built with the intent to put a gas engine on it even though Bruce Tharpe cautions against it. I laid the engine on the plans and cut the fuselage off to accomodate the length. Since the gas engine weighs quite a bit more than a glow engine shortning the fuselage is going to allow it to balance without extra weight. I am covering the fuselage now
(the rest is covered) and should be flying it in a couple months. By the way, I am covering with light weight polyester dress lining and useing polycrylic to adhere it. Works great.