I owned the plane since it first came out. I loved the plane. It is very light and well made. Only issue I had was the landing gear. You have to reenforce where it slides into the fuse. Run a couple peices of wood length wise and put a this peice of ply to the back side of the sloted area where gear sides in. Mine was totaled when my pilot came loose and took out the rear elavater stab and it hit hard. I will have a new one soon. FLys great on a 91 4 stroke... Can go as low as a 72 4 stroke. I used the bigger motor for nose weight. It is still for sale. just have to put in sportsman aviation waco in search. For sale at www.bigboystoys.theshoppe.com or somthing like that have it for $219 cludes shipping. Video of my Bip in flight. http://24.93.12.92/RAMS/movies/BarbieBipe_250.wmv