Efficient altitude, reciprocating engines?
OK, I could (and probably should) spend a bunch of time with a POH, to figure this out, but can anyone explain in understandable terms how the tradeoff between height, speed, and fuel burn works for light a/c, normally aspirated engines?
e.g. is there a specific alt for best speed and/or economy, high as you can? presumably at some point the lack of aerodynamic efficiency starts to hurt?
Thanks.