PPRuNe Forums - View Single Post - AF 447 Thread No. 10
View Single Post
Old 23rd Sep 2012, 02:43
  #486 (permalink)  
CONF iture
 
Join Date: Jan 2005
Location: W of 30W
Posts: 1,916
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by BOAC
but the one big problem we have is the total illogicality of the response of PF in pitch and the apparent lack of 'command' (CRM if you will) from PNF.
Illogical in its excessive amplitude and in its duration yes, but certainly not illogical in itself, what do you do suddenly 400 feet below your cruising FL and your aircraft pitching 2 or 3 degrees under a normal cruising attitude ?

Mention the 'O' bird as you wish, but the initial response of PF in pitch was not fatal, it was far to be ideal, but things had stopped to deteriorate before the FD came back and everything started again for the worse.

Much emphasis on the PF case but I find you guys almost too unconcerned by :
  1. The lack of awareness given by the system to the crew
  2. The FD logic
  3. The THS logic
  4. The stall warning logic
  5. The sidestick concept
Those 5 technological elements played against the crew that night.
Change one of those and chances to disrupt the deadly sequence are improved.

I take that opportunity to link a comment by Sullenberger on the sidestick versus …

CONF iture is offline