Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

737 rudder trimming

Tech Log The very best in practical technical discussion on the web

737 rudder trimming

Old 14th Nov 2007, 14:40
  #1 (permalink)  
Thread Starter
 
Join Date: Oct 2005
Location: springfield
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
737 rudder trimming

OK, im assuming this situation will occur in most jet aircraft, as opposed to just the 737, but i dont understand why. You take off get to top of climb and trim the aircraft out with the rudder trim such that the yoke is level. Then you descend disconnect the A/P to fly the approach and landing and quite often the rudder needs to be trimmed back through neutral and in the opposite sense to that used in the cruise. Im not whinging about the effort it takes , im just curious as to why this is the case.
Thanks
hoody_mcboob is offline  
Old 14th Nov 2007, 15:12
  #2 (permalink)  
Per Ardua ad Astraeus
 
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes on 0 Posts
Think flaps..............?
BOAC is offline  
Old 14th Nov 2007, 19:58
  #3 (permalink)  
 
Join Date: May 2004
Location: london
Posts: 81
Likes: 0
Received 0 Likes on 0 Posts
Think speed..........?
gonso is offline  
Old 14th Nov 2007, 20:34
  #4 (permalink)  
 
Join Date: Nov 2003
Location: UK
Posts: 494
Received 0 Likes on 0 Posts
Think temperature changes.................?
CaptainSandL is offline  
Old 15th Nov 2007, 02:15
  #5 (permalink)  
ok1
 
Join Date: Oct 2005
Location: Morgantown, WV
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
Think off-center toilet tank.........?
ok1 is offline  
Old 15th Nov 2007, 07:11
  #6 (permalink)  
 
Join Date: Feb 2000
Location: UK
Posts: 789
Likes: 0
Received 0 Likes on 0 Posts
Even a slight difference in N1 can cause a noticable amount of yaw.
A Very Civil Pilot is offline  
Old 15th Nov 2007, 08:30
  #7 (permalink)  
 
Join Date: Oct 2007
Location: Australia
Posts: 75
Likes: 0
Received 0 Likes on 0 Posts
thrust vortex out of engines, thrust setting again
mavrik1 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.