Altitude Compensation

[Todd Knighton]

I do remember from some science class, way back in school, that the
composition of the atmosphere does change, but as someone said earlier
in this thread, minimally at low altitudes, where normal humans reside.
	And also in the other thread, the mechanical injection systems I've
seen on airplanes, do have barometric compensation built in.  Some
cheaper systems on smaller planes might not, thus the pull lever for
mixture trim.

Todd Knighton
Protomotive Engineering