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Old 12th July 2011 | 22:45
  #199 (permalink)  
A33Zab
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From: somewhere
recover from stall.

IMO there was an escape from this stall but it did require the THS.

From the events (BAE) and *not official* but excellent calculations by HN39, the A/C needed TOGA + Full Elevator Up + THS 6° (ANU) to increase the pitch from 6° to 15°.
More THS (ANU) travel didn't had any influence on the pitch axis, it seems to be stabilised at this value.

Later in the sequence (after 2:12:00), engines at idle '55% N1' + THS in 13° (ANU) the brief ND elevator input reduced the pitch to ~ 5° (ANU).
thereafter pitch went to stabilize @ 15° again.

With a travel of 15° THS (13° + 2°) available and the ND elevator authority (10° Pitch AND in this stalled situation) it should be theoretically possible to get the nose down and regain speed.

But then again, I do most 'everything' by 'proxy'.

@mm43:

It's a pity this is not visible in your very enlighten graph, would it be possible to extend the timeframe to 02:13:00 at the least?

Last edited by Jetdriver; 12th July 2011 at 23:49.
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