Here is a pic of my Extra 300 that H82crash was talking about. It has a Os 160 and It hovers just fine. I'm running a perry pump on it which really makes a huge difference. Prop wise I first tried a 18x6 pro zinger but now I got a 18x8 mejzlik and it's a big improvement. Love the plane. If you where to install a gas motor on this plane it would need tall weight. I think if you really wanted to over power this plane put the moki on it and a bigger fuel tank.