alot of good info here. and the far does state the warning must be before stall speed however you can set it to go off below stall speed (i mean its possible not legal). aoa vanes tied to a air data computer will do wonders now the adc (air data computer) knows the speed of the aircraft pitot and static are also tied into the adc plus with the aoa tied in, the computer now knows airspeed and angle of attack. tie that into the stick shaker and if so equipped the auto throttle computer and or autopilot and you can give the stall warning auto throttle will advance power and the autopilot can bring the nose down. if your in a high speed stall the ground prox should have been warning of sink rate befor you ever got near a stall.
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