Originally Posted by
wallybird7
Hi Sensor
As we all now know from earlier posts, no such thing as "stall speed" its all about AoA.
In all my years in aviation there were no AoA indicators flying mostly all the A/C made in the US. It was/is all about Stall Speed.
Take-off speed, V1, Vr, V2, climb speed, and approach speed -- all based on STALL SPEED.
Fighters, Transports, DC-4, L-188, B-737,27,57,67. A-310, L-1011, DC-10 etc
So the A-310 didn't use this same AoA stall definition philosophy?
Technically a stall is about airfoils and peak lift AoA, and in a complex wing shape as the A330 this will not be a sudden transition.
There is a definition of "stall speed" which is the "speed below which the airplane cannot create enough lift to sustain its weight in steady 1g flight", and it is clear to me that the A340 in the airprox event went below this. The AF447 must have been close when almost levelling off @37,500 hence I have previously questioned the timing of stall warnings.