Mine started out as a made up copy of the F27C version. That's the brushless with lipo one. You need a 1850-2000kv motor, a 30-40 amp speed controller, the $20 white foam body kit and the F27C motor mount. Instead of using the flimsy foam ailerons and vertical stabs, I built some out of balsa and monokoted them. They came out a little lighter and considerably stronger.