PPRuNe Forums - View Single Post - AF447 final crew conversation - Thread No. 1
Old 25th Oct 2011, 00:07
  #379 (permalink)  
Lyman
 
Join Date: Aug 2011
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DC-ATE. Disagree. For the simple reason there is no data to rely upon, and intuitively, the difference in fbw, cables has naught to do with this STALL.

Just as the discussion is not only O/T, it is off Planet.

It isn't necessary to display good behaviour whilst STALLED to get the cert.

For ducks, my opinion is that the ship would begin a recovery as the elevators went nose down, but as drag decreased on the tail plane, it would regain its nose up designed in behaviours due better aerodynamics/drag, and the airframe would be unrecoverable. UNTIL THE THS MIGRATED BACK TOWARD NEUTRAL< AT WHICH TIME THE NOSE COULD DROP< AND RELOAD THE WINGS>

Without trim, the a/c would have recovered itself, even with full up elevators. Eventually, nose down elevators would be needed, or its porpoise into the sea, imo. Also less thrust would be nice. My guess is at first drop, the pilot would grok his space.

M'Lud: The cofg was initially reported by BEA as 37. They changed that to 28, later, without explanation. And generally without comment here.

Mustn't discuss.

Wait, could the 5000fpm VSsel have been the a/p response to command from FCM to load the tail due AFTCG? hmmmmm....

After a time w/o the cg adjust, did a/p drop as a result? Could that have been the chronic nose down the PF was hobbled with? Musical cg's?

Last edited by Lyman; 25th Oct 2011 at 00:19.
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