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A REALLY good question... |
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paulr 
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Joined: 24 Jan 2014 Status: Offline Points: 545 |
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 Topic: A REALLY good question...Posted: 11 Jan 2016 at 11:21pm |
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Why don't modern GPS systems provide audible announcements of the FAF and MAP? |
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DavidBunin
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Joined: 20 May 2015 Location: Rockwall, TX Status: Offline Points: 742 |
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Posted: 12 Jan 2016 at 7:00am |
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The Missed Approach Point might be different if you're flying an ILS versus a Localizer-only approach. Similar for LPV versus LNAV.
I'm not sure if the FMS would always be able to tell the difference. On the other hand, there is a request in to have a "minimums" callout added to the box. I imagine this would require the pilot to somehow enter an altitude for the alert before the approach begins. David Bunin |
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oskrypuch
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Joined: 09 Nov 2012 Location: CYFD Status: Offline Points: 3058 |
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Posted: 12 Jan 2016 at 9:12am |
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Yes, there was a thread earlier on this. Avidyne is nervous about the minimums callout, with all the potential variables involved. I suggested an Approaching FAF callout, and I think that one has a better chance.
* Orest |
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ddgates
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Posted: 12 Jan 2016 at 1:21pm |
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I believe Avidyne is planning for the intermediate and minimums callout to be in their TAWS option ($$).
DMG
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David Gates
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paulr
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Posted: 12 Jan 2016 at 1:23pm |
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I'd be happy with callouts for "Approaching FAF" and "Approaching MAP." I don't expect to get altitude callouts (nice to have, but I can see the complexity). It seems to me that if you've told the FMS what approach you're flying, it should have everything needed to make these two callouts.
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