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

A320 MCDU question


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

A320 MCDU question

Old 24th May 2006 | 01:07
  #1 (permalink)  
Thread Starter
 
Joined: Aug 2001
Posts: 108
Likes: 0
From: FL250
A320 MCDU question

We just received the new Thales revision on mur MCDUs and had a question.

When do you use the constant mach function?
thanks in advance
picollo is offline  
Old 24th May 2006 | 06:39
  #2 (permalink)  
20 Anniversary
 
Joined: May 2004
Posts: 308
Likes: 3
From: Down under land
usually when ATC require a constant mach number for separation with preceeding or following traffic at same level
Watchdog is offline  
Old 24th May 2006 | 06:55
  #3 (permalink)  
25 Anniversary
 
Joined: May 1999
Posts: 160
Likes: 3
From: UK
Thumbs up

Or 'across the pond' via the North Atlantic Track system or up/down the Tango route system to the Canaries from Ireland. It means that you can keep 'managed speed' throughout most of the flight if the Mach Number is defined only along a particular section of an airway (ii.e. T16) or along a NAT track.

It also it should give you a better MCDU estimate of the fuel at the destination because the aircraft will be predicting flying managed speed before, constant Mach on the section of airway and managed after.
Down Three Greens is offline  
Old 26th May 2006 | 00:21
  #4 (permalink)  
Thread Starter
 
Joined: Aug 2001
Posts: 108
Likes: 0
From: FL250
thanks a lot guys.
picollo 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 © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.