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Old 12th May 2012 | 15:50
  #21 (permalink)  
Mad (Flt) Scientist
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Joined: Sep 2002
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From: La Belle Province
@italia458

Sorry but you are thoroughly "wrapped around the axle".

Increasing angle of attack DOES NOT increase the stall speed. Increasing load factor does - everyone agrees with that - but you are confusing a coincidental factor with a CAUSAL factor.

This can be seen by considering that I can increase angle of attack independent of load factor - a simple slow-down does that - and the stall speed doesn't change, even though the AoA changes throughout the manoeuvre - the time history of AoA in no way affects the final stall speed for a suitably slow manoeuvre.

Arguing that because load factor affects Vs, and AoA can be associated to load factor, then AoA affects stall is misguided logic. I could as well try claiming that bank angle affects stall speed, because bank angle can be related to load factor under certain circumstances. That would be just as wrong.

AoA does not have a direct effect, or a causal effect, on stall speed. Never has, never will.
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