PPRuNe Forums - View Single Post - AF 447 Thread No. 5
View Single Post
Old 10th Aug 2011, 11:32
  #1831 (permalink)  
RetiredF4
 
Join Date: Jun 2009
Location: Germany
Age: 71
Posts: 776
Received 3 Likes on 1 Post
CONfiture
Quote:
Originally Posted by RF4
In a conventional aircraft you set desired attitude with stick input and relief the resulting stick pressure (either natural or artificial one) with trim.
OK Franz, how is it different from direct law on the bus ?
Have you ever flown the bus ?
Have you ever flown the bus in direct law ?
No, i´ve flown conventional aircraft with natural and artificial feedback,therefore i know that forcefeedback to the stick is an elementary necessity for trimming.

And i know also, that there is no feedback to the SS in airbus.

That is all i need to know, that trimming must be different.

I dont say, that it is not possible or more difficult, but it is not like trimming a conventional aircraft with feedback.

I would be very interested though in a detailled description, how it is done when autotrim is not available. I.e. concerning the pitch, do you steer pitch only with the trim like turning the trim wheel and look what it gives? Then readjust and finetune?
RetiredF4 is offline