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

holding pattern exit times

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

holding pattern exit times

Thread Tools
 
Search this Thread
 
Old 23rd Apr 2022, 04:21
  #1 (permalink)  
Thread Starter
 
Join Date: Aug 2003
Location: Melbourne
Posts: 478
Likes: 0
Received 22 Likes on 9 Posts
holding pattern exit times

Often ATC will clear you to hold and say "adjust speed/timing as required to exit a hold at a particular time".

Interested in any techniques to make this work (particularly in the Airbus).

Thanks in advance.
John Citizen is offline  
Old 23rd Apr 2022, 05:55
  #2 (permalink)  
 
Join Date: Oct 2009
Location: Australia the Awesome
Posts: 399
Received 0 Likes on 0 Posts
Put a time marker in the flight plan, adjust the hold speed and leg length as required by rough guessing the hold time, once you enter the pattern wind the speed back or faster to put the time marker over the hold fix to exit on time.

Ie: holding at FL300 @ min speed, 2 min legs will take about 8 mins, 1 min legs will take 6 mins
Roj approved is offline  
Old 23rd Apr 2022, 07:14
  #3 (permalink)  
 
Join Date: Sep 2009
Location: n/a
Posts: 56
Likes: 0
Received 0 Likes on 0 Posts
Enter the hold, check next time over the entry waypoint vs time of entry, that gives you time of 1 pattern, and then adjust accordingly.
fpuentegomez is online now  
Old 28th Apr 2022, 11:45
  #4 (permalink)  
 
Join Date: Dec 2013
Location: Elsewhere
Posts: 608
Received 67 Likes on 27 Posts
Start the stopwatch going over the hold fix, and note how long it is before you need to pass over the fix again. Go outbound until the stopwatch says half that time is up, and turn inbound again. You’ll need to make an educated guess at a wind adjustment, but (at least in Oz) you’re allowed to be up to a minute early. Using a time marker and judicious speed adjustments, it should be possible to be within a few seconds.
itsnotthatbloodyhard is offline  
Old 28th Apr 2022, 12:50
  #5 (permalink)  
Gender Faculty Specialist
 
Join Date: Mar 2002
Location: Stop being so stupid, it's Sean's turn
Posts: 1,880
Received 5 Likes on 4 Posts
You don't need to exit the hold via the holding waypoint.

Let us not overcomplicate things. Just press 'exit hold' at the time they give you and stop holding.
Chesty Morgan is online now  
Old 28th Apr 2022, 14:40
  #6 (permalink)  
 
Join Date: Sep 2003
Location: away from home
Posts: 891
Received 0 Likes on 0 Posts
Originally Posted by Chesty Morgan
You don't need to exit the hold via the holding waypoint.

Let us not overcomplicate things. Just press 'exit hold' at the time they give you and stop holding.
Need a “like” button here. Happens frequently into LHR (or did before you know C… something)
oceancrosser is offline  
Old 29th Apr 2022, 04:45
  #7 (permalink)  
 
Join Date: Jan 2000
Location: Aust
Posts: 187
Received 38 Likes on 19 Posts
Until they say…”adjust the pattern to cross x at time x”
SixDemonBag is offline  
Old 29th Apr 2022, 04:55
  #8 (permalink)  
 
Join Date: Dec 2013
Location: Elsewhere
Posts: 608
Received 67 Likes on 27 Posts
Originally Posted by SixDemonBag
Until they say…”adjust the pattern to cross x at time x”
…which is what I thought the original question was about.
itsnotthatbloodyhard 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.