Originally posted by CONF iture;
Apparently, same thing happened for AF447, THS was already at 13 degrees up when full back stick was maintained.
That undesirable auto trim operation has played a crucial role in the outcome of AF447.
Which was supported by
Owain Glyndwr's theoretical analysis - in part...
The nose was being held up by the application of elevator.
Of course, the THS setting made the elevator's job easier, and if the THS had been (sensibly in my view) restricted to 3 deg the eventual AOA would have been lower, How much lower you can get from the first chart - with 3 deg THS and 30 deg elevator you could expect to arrive at 35 deg AOA - big deal! - you are still well stalled and although the descent would have been shallower the end would have been the same unless he had recognised early on that he was in a stall.