I am new to this and I have read several magazines and books but still can't find an answer. However it seems that books are kind of limited on RC Airplanes. I can't seem to find much on this great hobby. I know there are different types of engines. As far as I have read there are electric, brushless electric, gas, and glow. The electric and gas are I believe are self explanatory but can someone please tell me what these types of engines are. Thank you so much for your help