ORIGINAL: giffordbilt
The buggy motors I use turn counter clock wise if you were standing in front of the prop looking at it head on, I call it clock wise because I think of it as if I was in the plane.
I have a AXE Rossi Mamba VP .21 that has a HotMod in it and it turns over 50,000 rpm. I guess that would be way too many rpms, What I had in mind was about a .26 or .21 motor that is stock and not been modified, just to put in my trainer. I can cut the heat sink down and have prop adapters for the crankshaft so if you guys think its feasible, I may just try it. I have another plane that has a evo 100 in it but I want to learn to fly before I put it in the air. Lots of guys on here talked me out of flying it with out an instructor. Matter of fact I am not even going to fly the trainer with out an instructor
It may turn that rpm in a car but there is no way it will turn any prop that rpm unless it's something in the range of 5 inches in diameter or smaller. Put a normal .21 prop on it, 8x6 or 9x5, and you will likely bog the engine down to maybe 12~14,000 rpm max at full throttle. It will be no more powerful or possibly even less powerful than a .21 engine meant for aircraft. The only way you could possibly use the engine's 50,000 rpm is to use gear reduction between the engine and the prop. Any prop small enough to be turned that speed directly would be so small that it would be grotesquely inefficient in propelling an airplane.
It takes an eight fold increase in horsepower to double the rpm of a propeller.