Concur with what the other folks said. Mine has a Magnum 61 2 stroke and is more than enough power and speed for me. A friend has a Magnum 75 on his and it's significantly faster (hotter landings too). I put retracts on it and the second landing one collapsed when the ply mount gave way. Beefed both mounts up in the wing, no problems since. Added no weight and it almost floats in for landings. Hobby People still carry this, but with the new P-47 by their Sports Aviation, I'm hoping they blow this one out (I'll buy at least 3). Contact me if you have any other questions.