Originally Posted by
propjunkie
Ryan Just to clarify any speed used in an equation whether referred to as speed or velocity refers to True airspeed not indicated airspeed. You are correct........ true stall speed increases with altitude not indicated. indicated stall speed is constant with altitude if other factors (weight, cg, bank, ect) are constant. for an explanation see my previous post.
You must be right...the Naval Test Pilot School must be wrong. There was a previous link to the NTPS manual that explains all of this. Remember that CLmax affects indicated stall airspeed, CLmax is affected at altitude by Reynolds, Deceleration rate, Reduced power (for power on stall).
The ill-fated CRJ200 flight (I'll try to find the data) actually stalled at a lower angle of attack than anticipated..resulting in engine core lock.