Quote:
Originally Posted by Machinbird
I'm also thinking the first two "beeps" of stall warning on AF447 were quite possibly caused by the g incurred in the initial pull up! It will be interesting to see the pitch rates developed.
HN39 quote
The stall warning AoA at M=0.8 gives you about 1.4 g. But then the BEA Update says 11 second later at 2:10:16 "The airplane's pitch attitude increased progressively beyond 10 degrees and the plane started to climb".
Probably obvious to the aviators, but this is only 0.4 incremental g above level flight. Add 0.1 g of cobblestone turbulence into the mix, and it is only 0.3 incremental g from the stick to achieve stall warning.
Depending on the pitch rate, this could be the cause of the initial stall warnings.