I also will agree with Silversurfer. I havent seen the plane fly with the "MOKI" I have seen it run and I'll gartentee it will fly it. How fast it will fly I don't know. He hadf the Scale exaust system made for it and I must say that it is reall loud. I'll see if I can get some pictures of it and post them. Take Silversurfers advise. Go with a bigger engine, Bigger is better anyway..............Sometimes