just built mine and flew it. its a edge 540. the power on mine is a esskay 400 outrunner from hobby-lobby for 20$. I find for the price it is fantastic. the plane itself is around 9 oz. kind of heavy, but a lot of reinforceing in it for extreme manuvers. anyway, mine does unlimited vertical at a little over 3/4 throttle and hovers at 1/2 throttle. Did I mention that i am around 5600 ft. altitude? to get to the point, i love that plane, and will have many more in my future.