I upgraded my plane with a brushless AXI 2212/34 and a 1100 3-cell Lipo, 12x3.8 APC Prop. I get 15 minutes of wild aerobatics. Flys fast to really slow. There are several things you can do the make the plane really, really resistant to breaking when you crash. If you email me I will send you pics which will really keep your plane from breaking badly the first time you hit the ground! This is how you make your plane a good 3D trainer! This keeps the body from tearing away from the plane and tearing a hole in the front of the wing when you crash land, including the use of a great prop saver. Sorry I don't know how to post all the pics and details right here. [email protected]