good to know that it flies well. i have the same bipe NIB and was waiting for a 52 fourstroke to free itself from it's current plane. but from the sound of it, it doesn't look like it's enough engine! i have a 70 SII that was originally going into a VQ P-51B that may actually end up in the ultimate now. but it'll be 4th on my list. i lost a plane last weekend due to some radio glitch followed by my own inability to save it. i will be transplanting that into a 25 size Gee Bee and finishing up my 25 size Cub before i even think about the ultimate. i have the purple one, too [:-)]