PPRuNe Forums - View Single Post - AF 447 Thread No. 6
View Single Post
Old 31st October 2011 | 10:00
  #1525 (permalink)  
DozyWannabe
 
Joined: Jul 2002
Posts: 3,093
Likes: 0
From: UK
@Machinbird

The way you describe it, less knowledgeable people would assume that the aircraft autotrimmed nose up entirely on its own without any order or prompting to do so. Of all the UAS incidents on this type only one aircraft was trimmed in this manner and that was because the PF ordered it to do so. Autotrim is "automatic" only in the sense that it responds to pilot input when under manual control - it will not trim unless there is an input for which to compensate.

The Airbus may be capable of more than the certification standards in that regard, but importantly it needs to be recognised that the trim system is a little different to conventional airliners and this needs to be acknowledged in training and certification.
DozyWannabe is offline