Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
Collapse
Just Flight Community Forum
  1. Home
  2. Just Flight
  3. MSFS Products
  4. Black Square Add-Ons
  5. Caravan Professional
  6. NAV mode keeps changing to ROL with Non-GPS Avionics

NAV mode keeps changing to ROL with Non-GPS Avionics

Scheduled Pinned Locked Moved Caravan Professional
10 Posts 5 Posters 40 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • S Offline
    S Offline
    SteveKane
    wrote last edited by SteveKane
    #1

    I decided to try a VOR only trip in Alaska, with two KX 155Bs. Passenger version if it matters.

    When in NAV mode tracking a VOR, the Autopilot keeps changing to ROL mode for no apparent reason. I change it back to NAV, it stays for maybe 20-40 seconds, then goes back to ROL. HDG mode persists.

    This is with today's 1.1 update. I'd not tried flying old-skool on the initial version.

    Can anyone else repro? Pilot error? I've never seen this on any BKSQ aircraft before. And never had this using TDI GTN units either

    I can post a video to demo if that would be helpful.

    1 Reply Last reply
    0
    • J Offline
      J Offline
      jmarkows
      wrote last edited by
      #2

      https://community.justflight.com/topic/10050/autopilot-goes-from-vor-to-roll-when-tracking-vor/

      Does this sound like a similar issue to what you're seeing?

      1 Reply Last reply
      0
      • S Offline
        S Offline
        SteveKane
        wrote last edited by
        #3

        Yes it does sound like the same thing. Hmmm, so it's a wider issue apparently, not just the Caravan. I might try to reverse the route I just flew, flying the Duke instead to see if I can repro. Will report back.

        1 Reply Last reply
        0
        • S Offline
          S Offline
          SteveKane
          wrote last edited by
          #4

          Yep, same thing in the Duke, though it switches to HDG mode since there's no LVL. Same VOR, Level Island 116.5. Wonder if the virtual VOR signal is twitchy? Anyways, probably not a BKSQ issue. Thanks for the pointer, jmarkows.

          1 Reply Last reply
          1
          • MarkSM Online
            MarkSM Online
            MarkS
            wrote last edited by
            #5

            Very interesting. I've not experienced the NAV->ROLL failover issue in the updated Caravan nor any of the other Black Square products, save for Starship (granted, I'm in Starship far more than any of the others). On the other hand, if others are experiencing the failover elsewhere, that tells me that it's likely unrelated to tweaks I've made to starship_interior.xml to "personalize" Starship a little more to my liking.

            Now you've got me wondering if the underlying issue might be due to something in the VOR signal degradation realism code, which I believe is being rolled out to the Black Square fleet as each gets a 2024 update (could be wrong on that point though).

            Black SquareB 1 Reply Last reply
            0
            • MarkSM MarkS

              Very interesting. I've not experienced the NAV->ROLL failover issue in the updated Caravan nor any of the other Black Square products, save for Starship (granted, I'm in Starship far more than any of the others). On the other hand, if others are experiencing the failover elsewhere, that tells me that it's likely unrelated to tweaks I've made to starship_interior.xml to "personalize" Starship a little more to my liking.

              Now you've got me wondering if the underlying issue might be due to something in the VOR signal degradation realism code, which I believe is being rolled out to the Black Square fleet as each gets a 2024 update (could be wrong on that point though).

              Black SquareB Online
              Black SquareB Online
              Black Square
              Black Square Developer
              wrote last edited by
              #6

              I just wanted to chime in here and say that we've discussed this a little on the forums in the past. I don't believe there is anything special about my aircraft that could induce this behavior, and there are no differences between my MSFS 2020 and 2024 versions in those regards, so I would encourage you to test both versions, and test with default aircraft, if you were willing to lend a hand.

              @MarkS said in NAV mode keeps changing to ROL with Non-GPS Avionics:

              Now you've got me wondering if the underlying issue might be due to something in the VOR signal degradation realism code, which I believe is being rolled out to the Black Square fleet as each gets a 2024 update (could be wrong on that point though).

              All of my aircraft have had that feature for long before 2024, and there is nothing that could effect autopilot behavior in the signal degradation system.

              If you're looking for the source of the issue, when you're using the KX155 + KX155 radio combination, there is nothing that stands between the MSFS native autopilot, and the MSFS native VOR navigation system.

              MarkSM 1 Reply Last reply
              0
              • Black SquareB Black Square

                I just wanted to chime in here and say that we've discussed this a little on the forums in the past. I don't believe there is anything special about my aircraft that could induce this behavior, and there are no differences between my MSFS 2020 and 2024 versions in those regards, so I would encourage you to test both versions, and test with default aircraft, if you were willing to lend a hand.

                @MarkS said in NAV mode keeps changing to ROL with Non-GPS Avionics:

                Now you've got me wondering if the underlying issue might be due to something in the VOR signal degradation realism code, which I believe is being rolled out to the Black Square fleet as each gets a 2024 update (could be wrong on that point though).

                All of my aircraft have had that feature for long before 2024, and there is nothing that could effect autopilot behavior in the signal degradation system.

                If you're looking for the source of the issue, when you're using the KX155 + KX155 radio combination, there is nothing that stands between the MSFS native autopilot, and the MSFS native VOR navigation system.

                MarkSM Online
                MarkSM Online
                MarkS
                wrote last edited by MarkS
                #7

                @Black-Square thanks for clarifying. I withdraw my speculation. It's a puzzler though, isn't it?

                ETA: just to help my understanding, wouldn't a failover occur if the signal degradation were so severe to cause a drop out, just as it does over the cone 'o' confusion?

                Black SquareB 1 Reply Last reply
                0
                • MarkSM MarkS

                  @Black-Square thanks for clarifying. I withdraw my speculation. It's a puzzler though, isn't it?

                  ETA: just to help my understanding, wouldn't a failover occur if the signal degradation were so severe to cause a drop out, just as it does over the cone 'o' confusion?

                  Black SquareB Online
                  Black SquareB Online
                  Black Square
                  Black Square Developer
                  wrote last edited by
                  #8

                  @MarkS Depends if everyone who is experiencing this is on MSFS 2024 or not. I can't say as I heard of this issue before MSFS 2024, but perhaps I'm mistaken.

                  MarkSM 1 Reply Last reply
                  0
                  • Black SquareB Black Square

                    @MarkS Depends if everyone who is experiencing this is on MSFS 2024 or not. I can't say as I heard of this issue before MSFS 2024, but perhaps I'm mistaken.

                    MarkSM Online
                    MarkSM Online
                    MarkS
                    wrote last edited by
                    #9

                    @Black-Square I don't have 2020 anymore, else I'd be jumping into Starship 2020 to test this. Not going back though. 🙂

                    1 Reply Last reply
                    0
                    • S Offline
                      S Offline
                      SadBucket
                      wrote last edited by
                      #10

                      with initial release of 2024 737 from pmdg I was getting regular ils signal cutouts around short final. They've since fixed this, admittedly I don't use vor navigation all that much and when I do I use hdg hold so I can't say Ive seen the issue yet...

                      1 Reply Last reply
                      0
                      Reply
                      • Reply as topic
                      Log in to reply
                      • Oldest to Newest
                      • Newest to Oldest
                      • Most Votes


                      • Login

                      • Don't have an account? Register

                      • Login or register to search.
                      • First post
                        Last post
                      0
                      • Categories
                      • Recent
                      • Tags
                      • Popular
                      • Users