PPRuNe Forums - View Single Post - AF 447 Thread No. 6
View Single Post
Old 23rd Aug 2011, 07:04
  #351 (permalink)  
rudderrudderrat
 
Join Date: Oct 2009
Location: UK
Posts: 1,270
Likes: 0
Received 0 Likes on 0 Posts
Hi Ian_W,

Should stall recovery procedure include manually trimming nose down?
It will do very shortly once this procedure is adopted. (Produced in May 2011)
The crew must be able to identify the symptoms of a stall, else it would be of no use.
http://fucampagne2008.unblog.fr/file...lprocedure.pdf

Generic Stall Recovery Procedure.

"2.
a) Nose down pitch control… Apply until out of stall (no longer have stall indications)
b) Nose down pitch trim…….………………………………………..As needed

Rationale:
a) The priority is reducing the angle of attack.
There have been numerous situations where flight crews did not prioritize this and instead prioritized power and maintaining altitude. This will also address autopilot induced full back trim.
b) If the control column does not provide the needed response, stabilizer trim may be necessary. However, excessive use of trim can aggravate the condition, or may result in loss of control or in high structural loads."

Last edited by rudderrudderrat; 23rd Aug 2011 at 07:40. Reason: formatting
rudderrudderrat is offline