Yep- poorly done about 30 years ago. Motor was in fuse offset towards the hollow blow pipe. Fins/wings were balsa. Worst part was mounting the top engine mockup. IIRC it was a 1/4" balsa and I slit the top tube so it could be glued to the motor tube. Kinda thru the wall, but it was delicate. survived the first fight without enuff nose weight and ground looped to it's death the second try. I screwed up and foiled the wings-kiss of death.