Machinbird
Thanks for that Turbine D. Can that be interpreted that you consider it improbable that AF447's engines would become stalled, even at high Angle of Attack? I know that engine technology has come a long way since Davies described an aircraft flaming out both engines while locked in a deep stall.
Yes, I would say it is improbable the engines stalled. Today's digital electronic engine controls enable more variables to be controlled to prevent stalls verses engines that do not have this type of control system.
From the BEA Interim Report # 1, Page 20:
The engines were subject to real-time monitoring in the framework of the engine condition monitoring program. Examination of the data recorded, including the data transmitted on the day of the accident, shows that both engines were functioning normally.
I don't think they would report this if there any suspicion the engines were a part of the high altitude scenario that took place. BAE has been very cautious to report only confirmed factual items.
TD