It is currently Thu Jan 28, 2021 5:17 am

All times are UTC





Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Managed or Selected?
PostPosted: Wed Nov 07, 2012 5:11 am 
Offline
Site Admin
Site Admin
User avatar

Joined: Thu Jun 21, 2012 5:36 am
Posts: 26
Location: Melbourne, Australia
Thanks to my inside source for passing on this issue with RNAV approach coding in the Airbus. Below we have the FM setup to do the Melbourne 16 RNAV approach. You will notice that the missed approach point is at MMLNM. This point seems to be located at the threshold, but it is not coded as the threshold waypoint (so can you be sure of its location?). If you look at the Melbourne 34 RNAV approach, you will notice that the missed approach point is coded as YMML34 which is much less ambiguous.
Attachment:
File comment: YMML RNAV 16
ymmlrnv16.png
ymmlrnv16.png [ 218.25 KiB | Viewed 20599 times ]

The question, then, is whether or not we can fly this approach in fully managed modes. There is an OEB (number 20/2.0) that relates to this issue if you are using an older standard Honeywell FMS, but it may be a bit less than definitive on the issue. It does seem as though there may be some ambiguity here, but I'm sure different people will have different ideas.

_________________
Dan Lambeth


Top
 Profile  
 
 Post subject: Re: Managed or Selected?
PostPosted: Wed Mar 12, 2014 2:28 am 
Offline
Biggles
Biggles

Joined: Wed Jan 30, 2013 6:01 am
Posts: 1
Thanks Dan,
Those of us who fly RNAV Approaches regularly, in particular into Melbourne, will have first hand experience with the ambiguities ( and sometimes lack of correct execution despite correct cues being visible, eg Blue Descent arrow yet no descent etc).
Runway 34 as mentioned is depicted accurately, and I can definitely see where the confusion arrises with the RNAV Approach RWY 16. This could indeed, among other factors, explain why many crew have experienced issues with this approach.
Great food for thought and further analysis.
Cheers


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
The Aviaddicts forum is powered by phpBB® Forum Software © phpBB Group