PPRuNe Forums - View Single Post - AF 447 Search to resume
View Single Post
Old 18th Apr 2011, 14:29
  #3623 (permalink)  
sensor_validation
 
Join Date: Jul 2009
Location: UK
Posts: 134
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by henra
While we are at speculating:
...
Any comments ?
Please feel free to challenge/dissect it part by part.
I'm sure you are right that it is significant what happened just before 02:10z - did the auto controls take action on 'bad-data' before disconnecting, was a turn or step-climb in progress etc.

I think you need to revise your timings a bit though to fit in with the detailed ACARS timings - presented in colour here

AF447 ACARS MESSAGES - Color Coded & Interactive Version

Couldn't all the 02:10 messages have been generated early in 02:10, just output in priority order over the next 2 minutes - interrupted only by high priority position report?

The aircraft was clearly in stable enough orientation to stream the messages in with only the occasional missed 6 or 7 second slot until 2:12:16. The BEA identified one missing ACARS that should have been transmitted before 2:15:15, but impact could have been at 2:14:30. A shorter time of fall seems to fit in better with a single stall/ fall rate. Much discussion earlier that true 'flat spins' a feature of T-tail, and 'falling-leaf' delta-wing, still lots of unknowns.
sensor_validation is offline