Mr. Optimistic
Re your earlier question about when the captain returned was 20k of altitude sufficient?
The captain returned when the aircraft was in descent passing FL355 just as the stall warning stopped due to "NCD" from the AoA vanes and the VS was about -10,000fpm. The sim exercises showed that recovery could occur with aggressive ND sidestick, held until the airplane began flying again and that took between 18,000ft and 22,000ft depending upon the exercise and when recovery actions began, (SS moved from NU to ND, etc). (that is a 4000ft difference but bear in mind at these descent rates that is also about 12 seconds.
The answer depends more upon the actions taken than it does on the airplane once recovery actions are aggressive and in place. I don't think part ND SS would do it in 20,000ft and it may not do it at all from an AoA of 40deg.
Last edited by PJ2; 3rd April 2012 at 23:48.