Throwing some light on rates of turn

Originally Posted by Crumpp

Another interesting fact about basic aerodynamics. Coefficient of lift is independent of altitude and corresponds to an specific angle of attack.

In otherwords, the angle of attack for best turn performance will be the same no matter what the altitude.

Amazing that some simple calculations reflect that basic fact. OHH the INSANITY OF IT ALL!!!

Mh. IIRC CL does depend on Mach number even at subsonic speeds and thus indirectly on altitude as for the same IAS the Mach number changes with altitude, the speed of sound being intimately linked to temperature.