Backwing, The problem with that airplane is that it is tail heavy. Probably because of the fiberglass rudder fin. I built one of these a while back and used an OS 160,and if memory serves me correct, it still required more than a pound of nose weight to balance. The ready to fly weight was well over 14 Lbs. A bit much for that size airframe IMHO. The guy that I built it for never flew it. He felt it would be a total dog at that weight. My advice would be, save your money. This thing is a lead sled with a pretty paint job. There are plenty of other good bargains out there..........RS