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IFD440 and Baro-Vnav

Printed From: Avidyne
Category: Avidyne General
Forum Name: IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
Forum Description: Topics on Avidyne's IFD 5 Series and IFD 4 Series Touch Screen GPS/NAV/COM
URL: http://forums.avidyne.com/forum_posts.asp?TID=1124
Printed Date: 18 May 2024 at 10:01am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: IFD440 and Baro-Vnav
Posted By: damiens
Subject: IFD440 and Baro-Vnav
Date Posted: 04 Aug 2016 at 9:30pm
Hi there,

Australia is about to introduce Baro-VNAV http://globalairspacesolutions.com/services/baro-vnav/" rel="nofollow - http://globalairspacesolutions.com/services/baro-vnav/ approaches across the country.  Can someone confirm that the IFD440 is currently compliant for Baro-Vnav approaches.

More Australian specific info can also be found here in the PDF.  https://www.casa.gov.au/file/152271/download?token=BO8i_5Lg" rel="nofollow - https://www.casa.gov.au/file/152271/download?token=BO8i_5Lg



Replies:
Posted By: chflyer
Date Posted: 05 Aug 2016 at 9:03am
The definitive answer needs to come from Avidyne, but I believe the answer is "no".

In order for the IFD's to be Baro-VNAV compliant, the AFM would need to state compliance with AC20-138, which it does not as far as I can find. Also, if the IFD's were Baro-VNAV compliant then they would qualify as integrating both Baro-VNAV and GPS/SBAS for LNAV/VNAV capability and along with that comes an annunciation and source selection/prioritisation requirement which I cannot find anywhere in the IFD documentation (perhaps I just missed it).



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Vince


Posted By: damiens
Date Posted: 06 Aug 2016 at 9:02pm
Originally posted by chflyer chflyer wrote:

The definitive answer needs to come from Avidyne, but I believe the answer is "no".

In order for the IFD's to be Baro-VNAV compliant, the AFM would need to state compliance with AC20-138, which it does not as far as I can find. Also, if the IFD's were Baro-VNAV compliant then they would qualify as integrating both Baro-VNAV and GPS/SBAS for LNAV/VNAV capability and along with that comes an annunciation and source selection/prioritisation requirement which I cannot find anywhere in the IFD documentation (perhaps I just missed it).


Thanks Vince, sounds sensible.  I will be holding off putting in the dual IFD 440's until I get a response from Avidyne.


Posted By: AviJake
Date Posted: 08 Aug 2016 at 4:29pm
Release 10.2 of the IFDs do NOT support Baro-VNAV.


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Steve Jacobson
sjacobson@avidyne.com



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