I don't know if you have seen the new kadet-sport they really did some work to it,lazar cut lite ply on the top and bottom's that made it a lot stronger but added a lot of weight course I always go over and build up what I thank will be the weak points its still heavy that's why I went and put the 61-fx on it the 46 would fly it fine but left me no power to pull out of trouble if I needed it, i'm running the 61-fx with a apc 13-8 prop