NAV Landing mode switches from glide slope to horizontal if below glide slope

earnil · 12-08-2017, 10:41 AM

Hi!

I have noticed bit strange behavior while using NAV Landing mode.

Normally, when using NAV Landing mode, Viggen switches at 10km distance from airport from horizontal guidance at 500m to glide slope.

At the same time, horizontal flight director needle on the ADI starts to reflect the glide slope as well.

If I descend below glide slope, both HUD and flight director switches back to horizontal guidance at 500 meters (see screenshot) and when I get back to correct glide slope, it changes again correctly to glide slope guidance.

I wonder if this is intended behavior or a bug.

The DCS version is 1.5.7.11762

RagnarDa · 12-09-2017, 07:38 AM

I *think* the correct behavior is to change to glide slope mode at different distances depending on your current height (so I changed it to this a little while back) BUT I don’t think it should switch back to horizontal guidance once it has entered glideslope mode.

RagnarDa · 12-27-2017, 08:19 AM

I am trying a fix now, hopefully it will work. Thanks for the report!

Skyflash · 01-12-2018, 10:01 PM

I notice the same behaviour when I land in Landn Nav mode and it didn´t behave like that in previous versions. I think that the TILS landingsystem works worse than ever, it worked much better before the last updates. Before you release updates, fly and evaluate if the reprogramming you make to fix the bugs actually works the way it should, please.

12-08-2017, 10:41 AM	#1
earnil Junior Member Join Date: Mar 2016 Posts: 48	NAV Landing mode switches from glide slope to horizontal if below glide slope Hi! I have noticed bit strange behavior while using NAV Landing mode. Normally, when using NAV Landing mode, Viggen switches at 10km distance from airport from horizontal guidance at 500m to glide slope. At the same time, horizontal flight director needle on the ADI starts to reflect the glide slope as well. If I descend below glide slope, both HUD and flight director switches back to horizontal guidance at 500 meters (see screenshot) and when I get back to correct glide slope, it changes again correctly to glide slope guidance. I wonder if this is intended behavior or a bug. The DCS version is 1.5.7.11762 Attached Thumbnails

12-09-2017, 07:38 AM	#2
RagnarDa 3rd Party Developer Join Date: Mar 2012 Posts: 1,551	I think the correct behavior is to change to glide slope mode at different distances depending on your current height (so I changed it to this a little while back) BUT I don’t think it should switch back to horizontal guidance once it has entered glideslope mode. __________________ DCS AJS37 HACKERMAN Bugs will happen

12-27-2017, 08:19 AM	#3
RagnarDa 3rd Party Developer Join Date: Mar 2012 Posts: 1,551	I am trying a fix now, hopefully it will work. Thanks for the report! __________________ DCS AJS37 HACKERMAN Bugs will happen

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01-12-2018, 10:01 PM	#4
Skyflash Junior Member Join Date: Jan 2017 Location: Sweden Posts: 14	I notice the same behaviour when I land in Landn Nav mode and it didn´t behave like that in previous versions. I think that the TILS landingsystem works worse than ever, it worked much better before the last updates. Before you release updates, fly and evaluate if the reprogramming you make to fix the bugs actually works the way it should, please.