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Old 25th Nov 2011, 10:34
  #499 (permalink)  
Machinbird
 
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Originally Posted by Dozy
They were stalled, that's what was bad about it! They were mushing at that point, and slowing down further might have rendered the aircraft completely unrecoverable.
Dozy, they didn't know that. Since the speedbrakes were rising from the wings into the wake of the stalled wing-there was minimal incremental drag. The effect was minimal with regard to incremental AOA.

If they had really been going at some crazy speed, they would have been thrown forward in their seats and had that impression confirmed.

As it was, they felt no more deceleration sensation than if the aircraft were on the ground, parked. That lack of sensation should have been a big clue, but the crew were so keyed up by then, they did not recognize the significance of the brief 3 second activation and its lack of deceleration.

It was not an error to deploy the speed brakes when PF did so.
The error was letting PNF cow him into retracting them prematurely.
FCOM
SPEEDBRAKES
No Limitation

Last edited by Machinbird; 25th Nov 2011 at 10:35. Reason: TIME WARP NOTICE
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