Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
Collapse
Just Flight Community Forum
  1. Home
  2. Just Flight
  3. MSFS Products
  4. F28 Professional
  5. Can't Change AP pitch

Can't Change AP pitch

Scheduled Pinned Locked Moved F28 Professional
38 Posts 15 Posters 3.6k Views 5 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.
  • O Offline
    O Offline
    OwlInFlight
    wrote on last edited by
    #1

    I'm having a major problem trying to change my pitch in AP. I have the Honeycomb Alpha/Bravo. In Pitch mode the aircraft will not respond to commands to pitch down so I can speed up to 250 kts. The wheel just rolls right back to the same position it was in. It doesn't matter if I use the trim wheel on the Bravo or the control on the center panel. Using GPS nav could be a factor, but I hadn't tried it in VOR mode.

    MarkM 1 Reply Last reply
    1
    • O OwlInFlight

      I'm having a major problem trying to change my pitch in AP. I have the Honeycomb Alpha/Bravo. In Pitch mode the aircraft will not respond to commands to pitch down so I can speed up to 250 kts. The wheel just rolls right back to the same position it was in. It doesn't matter if I use the trim wheel on the Bravo or the control on the center panel. Using GPS nav could be a factor, but I hadn't tried it in VOR mode.

      MarkM Offline
      MarkM Offline
      Mark
      JF Staff
      wrote on last edited by
      #2

      @owlinflight

      If you have Autopilot engaged with PITCH mode, you can adjust pitch using the blue PITCH control switch on the Autopilot Controller on the aft pedestal. That is the only way pitch can be adjusted in PITCH mode and the elevator trim wheel will have no effect.

      The PITCH control on the autopilot controller can also be controlled using the following MSFS control assignments:

      INCREASE AP PITCH HOLD REFERENCE
      DECREASE AP PITCH HOLD REFERENCE

      I personally have those assigned to the white switch on the right side of my Honeycomb Bravo and find it to feel very natural.

      Mark - Just Flight

      Just Flight Development Assistant

      O 1 Reply Last reply
      1
      • MarkM Mark

        @owlinflight

        If you have Autopilot engaged with PITCH mode, you can adjust pitch using the blue PITCH control switch on the Autopilot Controller on the aft pedestal. That is the only way pitch can be adjusted in PITCH mode and the elevator trim wheel will have no effect.

        The PITCH control on the autopilot controller can also be controlled using the following MSFS control assignments:

        INCREASE AP PITCH HOLD REFERENCE
        DECREASE AP PITCH HOLD REFERENCE

        I personally have those assigned to the white switch on the right side of my Honeycomb Bravo and find it to feel very natural.

        Mark - Just Flight

        O Offline
        O Offline
        OwlInFlight
        wrote on last edited by OwlInFlight
        #3

        @mark The problem is that, even using the switch on the AP Controller, pitch did not change.

        Edit: After binding it to the Bravo flaps switch like you did I got it to work.

        1 Reply Last reply
        0
        • M Offline
          M Offline
          Melon
          wrote on last edited by
          #4

          Is it intended for the pitch to snap back? I have the AP pitch reference set to the thumb buttons on my Alpha yoke and during climb outs when I set it initially to pitch hold and try to use those binds to push the nose down it snaps back up to what it was previously and does not hold the desired pitch so you cannot increase speed as per the tutorial/checklist.

          J 1 Reply Last reply
          0
          • M Melon

            Is it intended for the pitch to snap back? I have the AP pitch reference set to the thumb buttons on my Alpha yoke and during climb outs when I set it initially to pitch hold and try to use those binds to push the nose down it snaps back up to what it was previously and does not hold the desired pitch so you cannot increase speed as per the tutorial/checklist.

            J Offline
            J Offline
            JetNoise
            wrote on last edited by
            #5

            seeing the same issue, pitch seems to snap back, looking at the trim wheel also ..
            Same hw bindings on my Alpha

            M 1 Reply Last reply
            0
            • MartynM Offline
              MartynM Offline
              Martyn
              JF Staff
              wrote on last edited by
              #6

              Can you submit tickets to the support team so that we can investigate this further and see if we need to make any changes to better support the Honeycomb hardware? https://www.justflight.com/support

              Martyn - Development Manager

              J M 3 Replies Last reply
              0
              • MartynM Martyn

                Can you submit tickets to the support team so that we can investigate this further and see if we need to make any changes to better support the Honeycomb hardware? https://www.justflight.com/support

                J Offline
                J Offline
                JetNoise
                wrote on last edited by
                #7

                @martyn I'll do some more testing on my side, before i raise hell 😉

                Cheers
                Oliver

                1 Reply Last reply
                1
                • J JetNoise

                  seeing the same issue, pitch seems to snap back, looking at the trim wheel also ..
                  Same hw bindings on my Alpha

                  M Offline
                  M Offline
                  Melon
                  wrote on last edited by
                  #8

                  @jetnoise I'm sitting here on the ground playing with it... are you using the GPS unit? I just tried without the GPS unit and with the GPS and it seem like it might be an issue when using the GPS unit. Because when not using the GPS unit I was able to move the pitch trim with the pitch hold reference without it immediately snapping back to whatever. However when the GPS unit was enabled it immediately started snapping to what it was before when using the pitch trim switch/binding.

                  J 1 Reply Last reply
                  0
                  • MartynM Martyn

                    Can you submit tickets to the support team so that we can investigate this further and see if we need to make any changes to better support the Honeycomb hardware? https://www.justflight.com/support

                    M Offline
                    M Offline
                    Melon
                    wrote on last edited by
                    #9

                    @martyn I think it might be to do with the GNS being enabled. Shall submit a bug report though.

                    1 Reply Last reply
                    0
                    • M Melon

                      @jetnoise I'm sitting here on the ground playing with it... are you using the GPS unit? I just tried without the GPS unit and with the GPS and it seem like it might be an issue when using the GPS unit. Because when not using the GPS unit I was able to move the pitch trim with the pitch hold reference without it immediately snapping back to whatever. However when the GPS unit was enabled it immediately started snapping to what it was before when using the pitch trim switch/binding.

                      J Offline
                      J Offline
                      JetNoise
                      wrote on last edited by
                      #10

                      @melon great finding. Actuall i had the GPS "installed" but was doing the tutorial VOR/VOR.
                      I'll check on my next flight ... (later today)
                      Oliver

                      M 1 Reply Last reply
                      0
                      • MartynM Martyn

                        Can you submit tickets to the support team so that we can investigate this further and see if we need to make any changes to better support the Honeycomb hardware? https://www.justflight.com/support

                        J Offline
                        J Offline
                        JetNoise
                        wrote on last edited by
                        #11

                        @martyn is that of any interest maybe
                        Discussion about deactivating the gns unit

                        https://discord.com/channels/750764704175226992/1040727793736102000/1128970130915856434

                        Oliver

                        1 Reply Last reply
                        0
                        • J JetNoise

                          @melon great finding. Actuall i had the GPS "installed" but was doing the tutorial VOR/VOR.
                          I'll check on my next flight ... (later today)
                          Oliver

                          M Offline
                          M Offline
                          Melon
                          wrote on last edited by Melon
                          #12

                          @jetnoise Yeah, it definitely seems to be because of the GNS. Just did a flight without it and the pitch controls worked perfectly.

                          MartynM 1 Reply Last reply
                          0
                          • M Melon

                            @jetnoise Yeah, it definitely seems to be because of the GNS. Just did a flight without it and the pitch controls worked perfectly.

                            MartynM Offline
                            MartynM Offline
                            Martyn
                            JF Staff
                            wrote on last edited by
                            #13

                            @melon Thanks for confirming. We are investigating.

                            Martyn - Development Manager

                            1 Reply Last reply
                            0
                            • T Offline
                              T Offline
                              taguilo
                              wrote on last edited by
                              #14

                              Just a comment, besides INCREASE/DECREASE AP PITCH HOLD control assignments, INC/DEC VERTICAL SPEED can be used as well to control pitch, for those that probably have a controller already mapped to these events.

                              Tomas

                              1 Reply Last reply
                              1
                              • W Offline
                                W Offline
                                Wothan
                                wrote on last edited by Wothan
                                #15

                                @Martyn
                                With the GNS 530 NOT selected, I still have issues with pitch modes.

                                After takeoff setting AP on and controlling pitch works fine.
                                Having an altitude selected, makes the AP switch from Pitch to HT, but while it tries to level out, it keeps climbing through the set altitude.

                                Changing back to Pitch mode, the stabiliser seems to be stuck, and I can no longer change the pitch - the elevator trim wheel simply snaps back.

                                I have tried to disable the WT GNS 530 in the Panel.cfg file, but with no change.

                                Edit:
                                On my Stream Deck I can monitor the in-sim (Asobo) Autopilot settings.

                                When I engage the F28 AP, then the following in-sim (Asobo) AP functions are set to ON: AP Master & Level mode.
                                The F28 AP shows Roll & Pitch, and I can set the Pitch with the switch on the Pedestal or by pressing the V/S Inc./Decr. switches on my Stream Deck.

                                Once the F28 comes close to the Altitude preset, the in-sim AP changes to V/S and the V/S value decrease until it reaches the set altitude, where it changes to ALT hold mode.
                                But the F28 just keeps climbing and the Elevator trim wheel seems to be stuck, or rather snaps back to it´s initial position when I use either the Pitch switch (or V/S Incr./Decr. switches on my Stream Deck).

                                I wonder if any 3rd party addon can affect the AP.
                                I have alot of Aircraft addons, but most uses the standard (now WT) GPS units, PMS 750 or TDS GTNXi.

                                Edit 2:
                                I tried to disable all my addon aircraft in the Community folder to rule out any incompatibility with any of those , but to no avail.

                                1 Reply Last reply
                                0
                                • W Offline
                                  W Offline
                                  Wothan
                                  wrote on last edited by
                                  #16

                                  Just a thought...

                                  Could the PMS GTN750 or TDS GTNxi 750 cause Autopilot issues ?

                                  Also - is the F28 using standard MSFS AP functions, or are some of them custom coded ?
                                  The reason is that when I look on which MSFS AP functions are actve on my Stream Deck, I wonder why the LEVEL mode always seems active.
                                  Also when I use IAS mode, once I get near the Preset altitude, the MSFS AP switches from IAS to V/S mode with decreasing V/S as it comes closer tol the Preset altitude and then goes to ALT mode.
                                  But while the MSFS AP indicates to be in ALT mode and V/S is set to 0 ft/min on my Stream Deck, the Aircraft keeps climbing.

                                  T 1 Reply Last reply
                                  0
                                  • W Wothan

                                    Just a thought...

                                    Could the PMS GTN750 or TDS GTNxi 750 cause Autopilot issues ?

                                    Also - is the F28 using standard MSFS AP functions, or are some of them custom coded ?
                                    The reason is that when I look on which MSFS AP functions are actve on my Stream Deck, I wonder why the LEVEL mode always seems active.
                                    Also when I use IAS mode, once I get near the Preset altitude, the MSFS AP switches from IAS to V/S mode with decreasing V/S as it comes closer tol the Preset altitude and then goes to ALT mode.
                                    But while the MSFS AP indicates to be in ALT mode and V/S is set to 0 ft/min on my Stream Deck, the Aircraft keeps climbing.

                                    T Offline
                                    T Offline
                                    taguilo
                                    wrote on last edited by
                                    #17

                                    @wothan Yes, the autopilot uses custom code in the process of leveling off towards an altitude capture, both in PITCH and IAS modes. This is to smooth the capture form an otherwise different behavior with or without GNS selected. However, once altitude has been reached, the AP is totally controlled by MSFS ALT HOLD mode. It seems in your case there might be some controller mapping issues. We are going to investigate that.

                                    W 1 Reply Last reply
                                    0
                                    • T taguilo

                                      @wothan Yes, the autopilot uses custom code in the process of leveling off towards an altitude capture, both in PITCH and IAS modes. This is to smooth the capture form an otherwise different behavior with or without GNS selected. However, once altitude has been reached, the AP is totally controlled by MSFS ALT HOLD mode. It seems in your case there might be some controller mapping issues. We are going to investigate that.

                                      W Offline
                                      W Offline
                                      Wothan
                                      wrote on last edited by
                                      #18

                                      @taguilo
                                      Note that I´m not using any controller for the AP other than AP ON/OFF Toggle on my Yoke and the V/S Incr./Decr. on my Stream Deck.
                                      In the start I used the blue Pitch switch on the Pedestal, but with the same issue.

                                      I have only tried the F28 4000, and will try one of the other versions this afternoon.

                                      So I´m pretty sure that this isn´t a controller mapping issue, but rather some backround app intervening - or a F28 bug.

                                      1 Reply Last reply
                                      0
                                      • b3lt3rB Offline
                                        b3lt3rB Offline
                                        b3lt3r
                                        wrote on last edited by
                                        #19

                                        I was in a state today where pitching up would work while I held the switch but as soon as I let go it reverted. I resolved by cycling the AP once. Aside from that it's been working fine for me.

                                        M 1 Reply Last reply
                                        0
                                        • b3lt3rB b3lt3r

                                          I was in a state today where pitching up would work while I held the switch but as soon as I let go it reverted. I resolved by cycling the AP once. Aside from that it's been working fine for me.

                                          M Offline
                                          M Offline
                                          Melon
                                          wrote on last edited by
                                          #20

                                          Was one of the 'manual' fixes this update resolving the pitch snapping issue?

                                          MartynM 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