PPRuNe Forums - View Single Post - AF447 final crew conversation - Thread No. 1
Old 12th Dec 2011, 15:49
  #748 (permalink)  
SeenItAll
 
Join Date: Nov 2005
Location: Potomac Heights
Posts: 470
Likes: 0
Received 0 Likes on 0 Posts
About the sidesticks. It is my understanding that Airbus sidestick inputs are taken as requested deviations in control surface positions, and not as states for these positions. That is, when a pilot wants to adjust the attitude of the plane by some finite amount, s/he pulls the SS back/forward a specified amount, AND THEN RELEASES THE SS which then returns to a neutral position. The amount of the initial deflection in the SS is what determines the degree of attitude change. Holding the SS at a deflected position causes continually cumulative control surface inputs in that direction.

Thus, isn't it extraordinary that Bonin kept the SS in a deflected back position? Or is my understanding of how the SS works incorrect?
SeenItAll is offline