Alcarafa, this plane is giving me probs with the fueltank, once that is done, I'll prove this plane can do basic loops and rolls with an O.S. .40. If it can takeoff with a .40 it can do loops and rolls. This .40 will have a 11x5 attached. I fly planes that weight 10 lbs. with a .40 all day long. I'll PM you when the video is done, HD camera on the way soon. I been in this RC game to long.