IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM

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GI 275 GFC500 and IFD 540

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=2370
Printed Date: 03 May 2024 at 9:27pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com

Topic: GI 275 GFC500 and IFD 540

Posted By: jeffcb
Subject: GI 275 GFC500 and IFD 540
Date Posted: 02 Jun 2022 at 7:42am

I have recently installed this combination and would like someone with similar equipment to confirm that vertical guidance is available in a coupled LNAV/VNAV approach.

Regards

Jeff

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Jeff

Replies:

Posted By: Tommyfank
Date Posted: 12 Jun 2022 at 3:10am

my questions exactly. Does anybody read the posts here?

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Tommy
67’ V35 Bonanza
Montgomery, Texas

Posted By: jeffcb
Date Posted: 12 Jun 2022 at 4:59am

Now that I have done some more approaches I can update.

Australia does not have WAAS, and most GA aircraft don't have baro VNAV, so can only do LNAV +V.

My equipment does this very well and will fly an approach which is coupled laterally, and vertically, pretty close to the end of the runway.

In fact the main deviation seems to be laterally, where it can be almost one dot of displacement on HSI.

A bit strange.

GFC 500 AP is fabulous. Rock solid.

Cheers

Jeff .

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Jeff