All of you guys who are saying that the 11x7 prop is way too much for the Evo .46 are dead wrong. You really need to fly this engine before you make any judgements. I have been running a 11x7.5 Top Flite wood prop on my Evo .46 ( not the trainer system engine that comes with the three blade prop) on a Kadet LT40 for two months now, and it performs great. the plane WILL go vertical with this prop, and there have been no signs at all of any overheating problems. The only other prop I have run is an 11x6 MAS, and it performs good as well, but not as good as the 11x7.5 does. I have put the Evolution .46 up against two other Kadets that are set up identical to mine, one with a O.S. .46fx, and the other with a ThunderTigre, and the Evolution .46 on mine outperformed both of them hands down.