Manifold Air Pressure - What is it??
Sorry to bother you guys, but as a PPL there's a pretty basic technical question that I never asked early on in my training, and having qualified am embarassed to ask about now .....
What exactly is a manifold, and how does the air pressure in it measure engine power? How, if at all, does this relate to engine RPM, which is what I vary to cool down my piston helicopter?
Thanks for your help.