Blue flags are VFR?!?!?!
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=1866
Printed Date: 19 Apr 2024 at 11:09am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: Blue flags are VFR?!?!?!
Posted By: Flying_Monkey
Subject: Blue flags are VFR?!?!?!
Date Posted: 08 Oct 2019 at 12:58am
| Why are Blue METAR flags VFR and Green MVFR???? Why is this different than every other implementation of Metar flag color coding I have ever seen? Is my experience that limited or is Avidyne the anomaly? |
Replies:
Posted By: Catani
Date Posted: 08 Oct 2019 at 1:35am
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It's the same color coding as appears on the L3 Lynx screens, so Avidyne's colors are not unique. To me, blue means Blue Skies, perfect VFR. Green means you can still Go - the weather's not perfect, but probably good enough for VFR. Yellow and red are IFR only.
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Posted By: paulr
Date Posted: 08 Oct 2019 at 5:28am
| This is required by the ADS-B spec. I can't find the exact AC at the moment (because it's 0400 local and I'm barely awake) but the flag colors, color of traffic symbols, etc. displayed by the Avidyne and Garmin panel-mount hardware follow that spec. Certified panel mount ADS-B displays must follow the spec, whereas uncertified displays (hi, Foreflight and FlyQ and Garmin Pilot and ...) don't have to. That's the discrepancy. |
Posted By: Flying_Monkey
Date Posted: 08 Oct 2019 at 6:33pm
| The Dynon HDX is installable in certified aircraft under STC. I have it in my Cherokee 6. It displays VFR as green, MVFR as blue. The government's own weather website uses BLUE for MVFR. Is this really a spec/standard? If it is they really need to do a better job of getting the word out to the NOAA and other avionics manufacturers. It's extremely annoying to me that the Avidyne unit shows inverse colors for blue and green while Foreflight, Skyvector, all other apps, the Dynon HDX, and the NOAA aviation weather.gov site all use the opposite. Not sure why I am so annoyed! Haha. |
Posted By: Gring
Date Posted: 08 Oct 2019 at 8:50pm
|
it is part of the TSO for certified equipment. I went through this when we were working on the certification of the IFDs. For sure whoever wrote the TSO didn’t use common sense. Dynon can be different because it isn’t certified to the same standard the IFDs are.
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Posted By: oskrypuch
Date Posted: 08 Oct 2019 at 11:31pm
Exactly, the Dynon HDX is not TSO'd. Different rule book altogether. * Orest |
Flying_Monkey wrote:Posted By: 310pilot
Date Posted: 09 Oct 2019 at 12:07am
| I truly wish there was one standard (certified or not) that everyone would adhere to. It makes it very confusing for the pilot. This “non standard” drives me crazy when it comes to datalink radar display. For example, I can look at Foreflight and an area of weather will paint green. The same area will paint yellow on the IFD 540 and Red on the Aspen. |
Posted By: paulr
Date Posted: 09 Oct 2019 at 9:48am
| ISTR that the TSO has requirements for what reflectivity levels are assigned what display colors, too, but I'm on a commercial flight with crap wifi so I'm not going to look for it. Nonethless your point is well taken-- with multiple displays from different vendors in the cockpit, it's easy to get confused because of the lack of standardization. |
Posted By: Flying_Monkey
Date Posted: 10 Oct 2019 at 12:33am
| Thanks for the answers. I guess this is one of those things that will continue to annoy me forever! |