I had the OS 160 engine on mine and it had plenty of power and the plane still was tail heavy. It did not rocket out of a hover but would pull and develope speed. That engine ran great. The plane is now being outfitted with a ZDZ 40. Will test it in a couple of weeks. Putting the ZDZ on because Jason Shulman wanted to see how the ZDZ would work. He thinks it will work great. I got a 3 blade Mejzlik to try on her with the ZDZ. Jason will be the test pilot as well as he has been with nearly all my planes. Excellent plane
with good review from Jason.