PPRuNe Forums - View Single Post - AF 447 Thread No. 6
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Old 4th Sep 2011, 00:23
  #752 (permalink)  
HarryMann
 
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5. PF believed he was applying a correct procedure of stick back, apply TOGA and airbus protections especially alpha prot would prevent the bus from stalling with minimal height loss.
A good reason then, for having a proper stick shaker and pusher in ALT mode, as almost all other civil jet aircraft have and have had for many decades now.

There also appears to be little reason for allowing the THS trim system to assist a pilot to trim right into and beyond the stall at altitude and cruise speed...

Yes, yes, i know... bad piloting, inexplicable piloting but that is why stick shakers and pushers have been around for years - because it is known that pilots stall aeroplanes and the consequences are often that with a large swept wing jet a/c (however tailed), recovery cannot always be guaranteed in a set height lossor limit 'g' once badly stalled (c.f. stall netry just averted).

What was the argument then for certifying in Alt2 without a stick shaker and pusher ?
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