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Old 25th Jul 2011, 17:51
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Hyperveloce
 
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flight protections in ALT2 (end)

Thank you Takata for your patient answers. A last question: after the apogee at FL 380 of the quasi-ballistic trajectory, the AoA rapidly exceeded 30°, and the abnormal attitude law could have been triggered on this criteria (AoA>30°), but it has been said that it was inhibited since the airspeeds were invalid (below 60 kts) at that time (which is strange since IAS<60 kts is also an abnormal attitude criteria), and this also inhibited the stall warnings. But when the airspeeds became valid again, and when the stall warnings were allowed to sound again (after the ND inputs and thrust reduction), shouldn't the abnormal attitude protection law have triggered ? (since the AoA always remained above 35° according to the BEA)
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