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

CRJ 700 Crosswind Limits

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

CRJ 700 Crosswind Limits

Thread Tools
 
Search this Thread
 
Old 21st Dec 2011, 11:42
  #1 (permalink)  
Thread Starter
 
Join Date: Apr 2008
Location: high right
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
CRJ 700 Crosswind Limits

Can anyone help out, with references, the crosswind limits (demonstrated or otherwise) on the CRJ 700. The only limit I have found is in the FCOM 2 Supplementary Procedures about wet and contaminated runways saying that on a wet runway 27 knots is max and 15 for a contaminated (snow or ice covered). There is no other reference to limits, other than the rolling vs. static, in any of the official documentation that I have managed to track down. Maybe I'm missing something?!
transducer is offline  
Old 21st Dec 2011, 17:34
  #2 (permalink)  
 
Join Date: Sep 2002
Location: La Belle Province
Posts: 2,179
Likes: 0
Received 0 Likes on 0 Posts
CRJ 700 Airplane Flight Manual Chapter 6 (Performance) page 06-01-30 item 5D

Demonstrated Cross-wind (Take-off and Landing)
The maximum demonstrated cross-wind component for take-off (at 33 feet [10 metres] tower height) is 28 knots and is not considered limiting.
The maximum demonstrated cross-wind component for landing (at 33 feet [10 metres] tower height) is 30 knots and is not considered limiting.
As it says, "not considered limiting", so nothing is in Chapter 2, Limitations.
Mad (Flt) Scientist is offline  
Old 22nd Dec 2011, 02:26
  #3 (permalink)  
 
Join Date: Mar 2006
Location: Ormond Beach
Age: 49
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
At my airline, the crosswind limitations for the CR7 are as follows:

For takeoff:

28kts if braking action is good or better;
15kts if braking action is fair;
10kts if braking action is poor.

For landing:

30kts
15kts
10kts with the same braking action stipulations.

These are steady-states speeds, not gusts, so if I'm landing on Runway 36 and the wind is reporting 270/29G45, I'm still legal.
flyboyike is offline  
Old 22nd Dec 2011, 06:45
  #4 (permalink)  
 
Join Date: Dec 2008
Location: Netherlands
Posts: 96
Likes: 0
Received 0 Likes on 0 Posts
Dear flyboyike,

Does your airline state that these are steady winds or do you assume this? Most advisory material from manufactures on crosswind versus braking action assumes steady wind without gusts.

Legal doesn't always mean that you are safe.....
decurion is offline  
Old 22nd Dec 2011, 16:10
  #5 (permalink)  
 
Join Date: Mar 2006
Location: Ormond Beach
Age: 49
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
My airline specifically and explicitly states that these are steady-state limitations. I agree with you on your legality vs safety point, I was only reporting what our book says. Word for word.
flyboyike is offline  
Old 29th Feb 2012, 21:17
  #6 (permalink)  
 
Join Date: Dec 2007
Location: San Jose, CA
Age: 42
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
speaking of which, they have a nice iPhone app that figures out crosswind/tailwind/headwind components including the gusts and it's free.

App Store - WindTrig
ERJ145Driver 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.