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 Interpretation of Glide Bar to Finish indication

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Alf Posted - 04/06/2019 : 12:53:04
I am missing something in the way LK works when it calculates the Glide Bar indication to "Finish" waypoint.
On my device, in "Map Overlays", I set Glide Bar Indicator to "Finish".

On the first screenshot attached, you may notice that if I select "Task" in Multi Target selection my glide bar indicates 106 m for my home base, having to overfly a waypoint (FAI close) which is immediately before it.
On the second screenshot, taken after a few seconds, you may see that if I select "Home" in the in Multi Target selection my glide bar indicates 246 m for my home base. Note that my Safety Altitude is set to 400 m.
Since the waypoint before the landing site is so close and almost aligned with the flight path, I can't understand this big altitude difference. In other similar cases I notice an even bigger difference in altitude prediction on the Glide Bar.
Can anyone explain me what I am missing, please?



https://ibb.co/C8sfr7j

https://ibb.co/4Sfj41z

6   L A T E S T    R E P L I E S    (Newest First)
Alf Posted - 08/06/2019 : 18:59:04
Oh, I understand now what you mean, but it is set to 0.
Marco from Hangar 5 Posted - 08/06/2019 : 15:17:27
quote:
Originally posted by Alf

If you mean Safety Altitude it is at 400 m, and even taking it into consideration I still can't understand why if I go direct to finish I would arrive with 246 m above safety, while if I first overfly a turnpoint almost on track I would arrive with only 107 m above safety. As I mentioned in other occasion I noticed an even bigger gap.



No I mean task rules.

Menu>Config>Config>LK800 setup>system setup>next to page 14 TASK, button Task Rules>Finish Min height

It looks like the Min Finish height is set to 500 meters or something

Alf Posted - 07/06/2019 : 16:05:57
Safety MC is set to 1. But still, in both cases, I think final glide bar should take it into account, since I set it to "Finish". In the first case it should indicate arrival altitude at finish above Safety Altitude and using Safety MC, passing for a turnpoint before. In the second case all the same but flying direct to finish. Isn't it this way?
brunotl Posted - 07/06/2019 : 15:14:45
quote:
Originally posted by Alf

If you mean Safety Altitude it is at 400 m, and even taking it into consideration I still can't understand why if I go direct to finish I would arrive with 246 m above safety, while if I first overfly a turnpoint almost on track I would arrive with only 107 m above safety. As I mentioned in other occasion I noticed an even bigger gap.



check Safety MC parameters in System Config page 6 Safety factors

in your screenshot, one turpoint is airfield so "Safety MC" is apply, the other is not an airfield so "Safety MC" is not apply...
Alf Posted - 07/06/2019 : 15:01:35
If you mean Safety Altitude it is at 400 m, and even taking it into consideration I still can't understand why if I go direct to finish I would arrive with 246 m above safety, while if I first overfly a turnpoint almost on track I would arrive with only 107 m above safety. As I mentioned in other occasion I noticed an even bigger gap.
Marco from Hangar 5 Posted - 07/06/2019 : 13:58:09
Probably you have specified a minimum finish height of 550m or something

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