PPRuNe Forums - View Single Post - The vital importance of high altitude stall recovery training in simulators
Old 10th Oct 2014, 11:50
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RetiredF4
 
Join Date: Jun 2009
Location: Germany
Age: 71
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Imho it is not prudent to use aileron or rudder when in a stall (not stall aproach). There is no guaranteee how the jet will react to the input and there is no time to find out. Stall is a AOA problem and AOA is reduced by equaling pitch angle close to flightpath angle (the difference between both is AOA). The pitch must be changed, and bank up to 45° should have no negative influence for reducing AOA, it might even help to bring down the nose faster.

Take a look at the animation of AF447 event, link below.: From 02:11:33 until 02:12:15 the SS command was permanently full left, and the aircraft continued to bank right. At 02:11:56 FL 330 the pitch had dropped to -10°, AOA was 38°, 30° right bank, a good chance for recovery by forward stick and care about the bank later when AOA is reduced and the effectiveness of the ailerons is restored.




Reconstitution des 4 dernières minutes par les experts du 2ème rapport d'expertise
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