PPRuNe Forums - View Single Post - AF 447 Thread no. 4
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Old 18th June 2011 | 14:45
  #147 (permalink)  
TyroPicard
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Joined: May 2000
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From: Glorious West Sussex
RetiredF4
One thing i´m sure : The simple stick forward and wait, like some are saying here, would only have worked up to a defined value of AOA and speed, and i see that value of AOA well below 45°. The discussion what the crew did do wrong in recovering the aircraft once established in the descent (estimnated FL 300 downward ) is IMHO useless, because there was no "conventional method" available which would have brought AF447 out of this position.
I don't think this is correct. Sustained full forward sidestick is effectively a demand for minus 1g. If the initial elevator movement did not achieve this the THS would immediately move in a nose-down trim sense to assist - if necessary as far as the stop. The difficulty lies in recognising the requirement for the forward sidestick.
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