Which Ringmaster Junior are you building? The original back in the fifties looked like a reduced S1 Ringmaster. The last Ringmaster Junior kit I built had the wings revamped with sheeted leading edges and the plans updated to suggest anything up to a Fox schnuerle .25...WAAAY too much engine for that plane (mine has an Enya .09).

George

Well, I coulda stuck a picture in here...sorry.