I fly with one and I'm very happy with it. On KS canasters it turns just about as good as a 80 single (about 200 RPM less) I have tried several props in the 26in range and it turns them all in the 6000 to 6500 range as for thrust I have no way of telling what it puts out all I know is that it will take a 20lb laser straight up NO problem. One other thing the engine is smooth very smooth about the smoothest twin I have seen at our field. Just my .02