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Old 1st Nov 2011, 14:06
  #1562 (permalink)  
infrequentflyer789
 
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Originally Posted by Machinbird
Those who think yokes should be the cure-all for what the other guy is doing should look at this accident originally posted by Netstruggler in the current Rumors & News AF447 thread.
http://libraryonline.erau.edu/online...s/AAR97-05.pdf
Yep. Yokes may or may not be better, but they provably do not cure the problem.

That report was also referred to way back in this thread: http://www.pprune.org/tech-log/17316...ver-stall.html

Post #18 (from Old Smokey) on that thread is particularly precient regarding the stall training issue. Since then, Colgan, Perpignan, Schipol, 447 etc. and finally in 2011 maybe something is getting done about stall training.

Some other bits from the report:

Following a December 20, 1995, fatal accident involving an American Airlines
(AAL) B-757 near Buga, Colombia, the Safety Board recommended that the FAA:
A-96-94
Require that all transport-category aircraft present pilots with angle of attack30
information in a visual format...
the Safety Board concludes that this
accident might have been prevented if the flightcrew had been provided a clear, direct indication
of the airplane’s angle of attack. Therefore, the Safety Board reiterates Safety Recommendation
A-96-94.
So that was 1996, and 1997, and now in 2011:

The crew never formally identified the stall situation. Information on angle of attack is not
directly accessible to pilots. ... Only a direct readout of the angle of attack could enable crews to rapidly identify the aerodynamic situation of the airplane and take the actions that may be required.
Consequently, the BEA recommends:

that EASA and the FAA evaluate the relevance of requiring the presence of an
angle of attack indicator directly accessible to pilots on board airplanes.
Is the industry going to lear from history or repeat it...
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