PPRuNe Forums - View Single Post - AF447 wreckage found
View Single Post
Old 5th Jun 2011, 10:39
  #1412 (permalink)  
HazelNuts39
 
Join Date: Jul 2009
Location: France - mostly
Age: 84
Posts: 1,682
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Mr Optimistic
HN39, am I reading your graph correctly ?
No, you are not reading the graph correctly. Perhaps you should read it together with another graph that shows vertical speed and altitude.

Per BEA the airplane stalls around 2:11:00, after AoA exceeds alphamax and then approx. 9 degrees and continues increasing as shown in the first graph. At 2:10:30 the vertical acceleration reduces to less than 1g. Vertical acceleration above/below 1g is the rate of change of vertical speed, which is 7000 fpm at that point and starts reducing to 700 fpm.

Last edited by Jetdriver; 5th Jun 2011 at 12:59.
HazelNuts39 is offline