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

A320 flaps in severe turbulence

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

A320 flaps in severe turbulence

Thread Tools
 
Search this Thread
 
Old 4th May 2012, 13:23
  #1 (permalink)  
Thread Starter
 
Join Date: Mar 2009
Location: FL370
Posts: 101
Likes: 0
Received 0 Likes on 0 Posts
Wink A320 flaps in severe turbulence

If severe turbulence is reported at 1500 which flaps configuration is recommend for departure and why?
Flyman35 is offline  
Old 4th May 2012, 13:29
  #2 (permalink)  
 
Join Date: Sep 1999
Location: Middle England
Posts: 611
Likes: 0
Received 0 Likes on 0 Posts
Why would you take off into known severe turbulence?

From our EU Ops Manual:

"Severe – large and abrupt changes in aeroplane attitude and/or altitude accompanied by significant variations in airspeed; the aeroplane may be out of control for short periods; occupants are forced violently against seat belts and harnesses; loose objects are tossed around."
763 jock is offline  
Old 5th May 2012, 02:16
  #3 (permalink)  
 
Join Date: Feb 2008
Location: Wingham NSW Australia
Age: 83
Posts: 1,343
Likes: 0
Received 0 Likes on 0 Posts
Severe turbulence

As 763 jock indicates "Severe" turbulence causes a very violent environment. In addition to what 763 jock has posted the capacity to accurately read instrumentation is likely to be impaired, due to the eyes being bounced around within the eye sockets. Often "severe" turbulence is reported when in fact it is "moderate" at worst. Under FAA definitions "Severe" turbulence is only less in intensity to "Extreme" which will likely cause structural damage to an aircraft.
Old Fella is offline  
Old 5th May 2012, 09:26
  #4 (permalink)  
 
Join Date: Jun 2001
Location: Fragrant Harbour
Posts: 4,787
Received 7 Likes on 3 Posts
If you carefully read the description - two things are apparent. First, turbulence is often misreported - severe turbulence is rare and many pilots have never encountered it. I reckon I have only encountered it once in over 25 years. Ans secondly, as 763 Jock says - you would delay the departure if it was forecast!

So in answer - I wouldn't take off. But if I was taking off with windshear reported, I would consider config 3 with TOGA. The reason being, you spend as litte time on the runway and it's nearly impossible to scrape the tail in that config.
Dan Winterland is offline  
Old 5th May 2012, 14:54
  #5 (permalink)  
 
Join Date: Mar 2005
Location: Uh... Where was I?
Posts: 1,338
Likes: 0
Received 0 Likes on 0 Posts
I would use flaps one, TOGA, just in case there is wind shear too.

A high speed VR, (as always are optimized speeds) should prevent any tailstrike.

When accelererating, wait until 20 kt after S speed before retracting, as per SOPs
Microburst2002 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



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.