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Old 31st Jan 2011, 14:42
  #2665 (permalink)  
HazelNuts39
 
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Gust loads

Originally Posted by Machinbird
Quote:
(Henra): Besides that also the RTLU setting would mean it had to stall/spin at M0,8.

So if this type of stall entry would break the airframe, we could pretty well conclude that that the two above scenarios couldn't happen since the aircraft appears to have impacted in an essentially intact condition.
I too find this scenario intriguing. It wouldn't break the airplane though, as shown in this graph.

BEA's second interim report mentions one UAS incident where peak loadfactor excursions of 0.2 and 1.9 g were recorded:
Turbulence was always recorded and reported. The levels felt by the crew varied form slight to strong. The recorded amplitude in recorded normal went from [0.75/1.2g] to [0.2/1.9g].
What mainly speaks against this scenario is that nothing in the available meteorological data suggests an extremely violent gust: the cb was already decaying, its tops were descending and it was spreading out horizontally below tropopause.
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