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Old 5th Dec 2018, 16:56
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Mad (Flt) Scientist
 
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Originally Posted by safetypee
FCeng84. With the above in mind; my supposition for comment;- perhaps a scenario of 1.1Vs stick-shake (trim point 1.3/1.4Vs), has insufficient stability margin to manage a ‘powering out - approach to stall recovery’, such that the pitching moment from thrust is greater than that could be negated by acceleration. i.e. the aircraft pitches faster than it accelerates such that it reaches stall AoA during recovery (~ even more forward stick during a go around.).
That's my assumption from what I've read; there is considerable industry concern over this kind of scenario following some incidents and I would not be surprised if boeing, FAA, or both were trying to be proactive in addressing the concern. Sadly it looks like in this case it had unforeseen consequences.
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