Guys, I've got this plane and have been flying it for a couple of years using a Saito 170 R3 for power. It is the ULTIMATE combination! You will forget all about the cost of this engine the first time you start it. The performance is on par with what this airplane is, a scale bipe. I have also seen several of these with the G26 engine and they fly about the same as mine, BUT, the sound of the radial makes the plane!