I converted this a couple of months ago also. It has a Cox .020 in it with throttle and a 6x3 prop instead of the normal 4x2. I had to make a fuel tank for it, it runs about 10 minutes on a tank. It weighs about 11oz if I remember correctly. It's underpowered but flies good on the wing, about like what I imagine a rubber band r/c plane would fly like. At full throttle it will slowly climb and low throttle it will slowly descend. When it's at low throttle it's as quiet as an electric. A completely cowled in .020 turning a 6x3 with a throttle covering the exhaust ports makes very little noise. When I get a chance to fly it with no wind Iwant to try some touch and goes.