How HSI in skydemon works

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chloroformaa
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How HSI in skydemon works

Unread post by chloroformaa »

Hi ..can anyone explain (pointwise) how the HSI in skydemon works wrt following..:
1. In screenshot 2: I have selected values to be magnetic instead of true so that the value shown in my DI in the aircraft (screenshot 1), matches with the value shown in HSI (at top) in skydemon..Now, the track M value shows the same value as heading, which means skydemon doesn't know the effect of wind and values of tracks and heading are always shown to be same..
A. Now, pink ribbon shows the heading to be flown to next waypoint..I am already following that but then why isn't my trajectory parallel to the pink line..?
B. What is the 103 degree value shown on the leg represent .?..I have checked the true track and that is even less (74 Deg) so this is certainly not that value .so what value is this..?..

2. In screenshot 3, when I adjust magnetic heading to 111, then finally trajectory is parallel to track but ribbon still shows 91...

3. In screenshot 4: I tried another leg now..here , here ribbon correctly shows the heading to follow to proceed to next waypoint unlike the screenshot 2 case, but still what is 075 on the leg stand for..?..

4. If I manually add wind values or chose real weather in the flight sim, will still skydemon show same values for track and heading..?..or now , will it show the different/actual values for heading and track..?

5. Is there any way to show heading (including wind) to be showed on the ribbon in HSI in skydemon, so I can just follow that on the DI in my aircraft...?..(and avoiding any wind and drift calculations)..

Regards..
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Phugoid
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Re: How HSI in skydemon works

Unread post by Phugoid »

The purple track shows heading
If you open the navlog you will get your track

SkyDemon should calculate the effect of wind, select takeoff today, if the flight occurs in the past track/heading are the same for me at least. Make sure you are using live wx in flightsim

The caveat to this is I rarely use SkyDemon in flight sim, maybe there is a disconnect between the real weather and flight simulator.

I have found SkyDemon to be very accurate on my nav flights in the real world
All men dream: but not equally.Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible T.E.L
Phugoid
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Re: How HSI in skydemon works

Unread post by Phugoid »

Phugoid wrote: Sun Oct 29, 2023 8:54 pm The purple track shows heading
If you open the navlog you will get your track
Quick follow up - I did not fly today due to the received forecast, so I did it virtually with fs2020 with Skydemon

I also get a significant disconnect between the hdg to fly on vs the actual hdg flown - I was tracking towards a VOR and the hdg required by the sim vs the hdg flown to maintaine the radial were different by 20 degrees. I think this has to do with the weather, because the wind on the 750 was double that compared to the Skydemon wind.

On the ground D)(fs2020) and the HSI(skydemon) reflected the same, so I presume this is not a magnetic variation issue.

I will try this on x-plane another time and see if its the same issue
All men dream: but not equally.Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible T.E.L

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