Now that you mention it barry, I have two, a 13x4w on the ucando and a 18x10 on the kangke cap 120. The engine died on take off about 3 feet in the air, landed hard and took the gear out. But you should have seen it take off!!!!!! It left the ground with a tiny bit of elevator and the wings were level with no inputs from me, the the engine died. It kept its wings level untill it stalled and just fell to the ground. Its been repaired and waiting for the next flight!!!!