PPRuNe Forums - View Single Post - AF447 final crew conversation - Thread No. 1
Old 21st Jan 2012, 08:28
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Birdstrike737
 
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RE:

a. the stall warning trigger threshold "cooks off" at a LOWER AoA and remains silent at deep-stall AoA's (i.e. any attempt to stick fwd [and thus lower the nose] triggers a quite deterrent aural stall warning – so any prudent pilot unstalling actions are thwarted).

>>Bonin: 'But I have been pulling back on the stick all the way for a while.'
>>Dubois: 'No, no, no, don't climb.'
>>Robert: 'Ok give me control, give me control.'
>>Dubois: 'Watch out you are pulling up.'
>>Robert: 'Am I?'

Perhaps "prudent pilot unstalling actions" are thwarted by the automation, but I don't see any prudent pilot unstalling actions here TO THWART!

Also, although I fly Boeing and am thus not familiar with the Windows Vista flight control system of more "advanced" aircraft, I wonder: did the pilot have authority over pitch trim, or was that removed from his crib like a dangerous toy also?

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