I don't want to be negative but RVator bought a Mag 108 and put it on a Goldberg extra 300 1/5 scale. He was never satisfied with the power output. The BB is much bigger than that plane which has only about a 65" span. It would drop off in the turns and it always worried him so he sold it. He still has the plane and wants to put a YS 110 on it some day. Just letting you know how his was.