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Trim

Scheduled Pinned Locked Moved Hawk T1/A Advanced Trainer
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  • J Offline
    J Offline
    John688
    wrote on last edited by
    #1

    Hi, I am finding it impossible to trim for level flight.
    When I try to trim the aircraft it will usually be out by up to 1000 fpm
    between opposing button presses.

    Looking at the outside hud view I notice that each button press = 1.0 trim as opposed to 0.1 for the other aircraft.

    Is this supposed to be like that ?

    K 1 Reply Last reply
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    • J John688

      Hi, I am finding it impossible to trim for level flight.
      When I try to trim the aircraft it will usually be out by up to 1000 fpm
      between opposing button presses.

      Looking at the outside hud view I notice that each button press = 1.0 trim as opposed to 0.1 for the other aircraft.

      Is this supposed to be like that ?

      K Offline
      K Offline
      Ken
      wrote on last edited by
      #2

      @john688 I've had similar issues, which seem to be associated with a general lack of pitch stability in flight; and yaw stability on the runway. It's hardly the ideal solution, but for me the aircraft is very much more manageable, in the air and on the ground, since installing a replacement flightmodel.cfg available as an aircraft enhancement (whose existence suggests others have also encountered this) from flightsim.to

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      • K Ken

        @john688 I've had similar issues, which seem to be associated with a general lack of pitch stability in flight; and yaw stability on the runway. It's hardly the ideal solution, but for me the aircraft is very much more manageable, in the air and on the ground, since installing a replacement flightmodel.cfg available as an aircraft enhancement (whose existence suggests others have also encountered this) from flightsim.to

        J Offline
        J Offline
        John688
        wrote on last edited by
        #3

        @ken Thanks I'll give it a try.
        I just got the F-104G and it trims beautifully.

        1 Reply Last reply
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        • K Ken

          @john688 I've had similar issues, which seem to be associated with a general lack of pitch stability in flight; and yaw stability on the runway. It's hardly the ideal solution, but for me the aircraft is very much more manageable, in the air and on the ground, since installing a replacement flightmodel.cfg available as an aircraft enhancement (whose existence suggests others have also encountered this) from flightsim.to

          B Offline
          B Offline
          BAW24P
          wrote on last edited by
          #4

          @ken Is the replacement flightmodel.cfg still available on Flightsim.to? I've searched for it and found no results.

          The trimming is a nightmare.

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          • B BAW24P

            @ken Is the replacement flightmodel.cfg still available on Flightsim.to? I've searched for it and found no results.

            The trimming is a nightmare.

            K Offline
            K Offline
            Ken
            wrote on last edited by
            #5

            @baw24p Yes, it's called "Improved Flightmodel for JustFlight Hawk T1/IFT T45 Goshawk "

            B 1 Reply Last reply
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            • K Ken

              @baw24p Yes, it's called "Improved Flightmodel for JustFlight Hawk T1/IFT T45 Goshawk "

              B Offline
              B Offline
              BAW24P
              wrote on last edited by
              #6

              Thanks @ken, I'll give it a try.

              MartynM 1 Reply Last reply
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              • B BAW24P

                Thanks @ken, I'll give it a try.

                MartynM Offline
                MartynM Offline
                Martyn
                JF Staff
                wrote on last edited by
                #7

                The trim rate has been adjusted for the next update.

                Martyn - Development Manager

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                • MartynM Martyn

                  The trim rate has been adjusted for the next update.

                  B Offline
                  B Offline
                  Barnes
                  wrote on last edited by
                  #8

                  @martyn Good news indeed. Have any other adjustments been made to the FDE?

                  MartynM 1 Reply Last reply
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                  • B Barnes

                    @martyn Good news indeed. Have any other adjustments been made to the FDE?

                    MartynM Offline
                    MartynM Offline
                    Martyn
                    JF Staff
                    wrote on last edited by
                    #9

                    @barnes said in Trim:

                    @martyn Good news indeed. Have any other adjustments been made to the FDE?

                    Yes, there'll be various tweaks to the FDE in the update as well as other changes listed here: https://community.justflight.com/topic/2845/update-change-logs-v0-1-4-released-edited-2-2-22

                    Martyn - Development Manager

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                    • MartynM Martyn

                      @barnes said in Trim:

                      @martyn Good news indeed. Have any other adjustments been made to the FDE?

                      Yes, there'll be various tweaks to the FDE in the update as well as other changes listed here: https://community.justflight.com/topic/2845/update-change-logs-v0-1-4-released-edited-2-2-22

                      B Offline
                      B Offline
                      BAW24P
                      wrote on last edited by
                      #10

                      Hi @martyn, the trim is significantly better with this release. Thank you.

                      One suggestion for the changelog: How about stating what FDE stands for and/or expanding on what had been changed. I've had four discussions yesterday with other simmers trying to understand if the trim fix was included in this release or not. Can you pass that on to the team please?

                      D 1 Reply Last reply
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                      • B BAW24P

                        Hi @martyn, the trim is significantly better with this release. Thank you.

                        One suggestion for the changelog: How about stating what FDE stands for and/or expanding on what had been changed. I've had four discussions yesterday with other simmers trying to understand if the trim fix was included in this release or not. Can you pass that on to the team please?

                        D Offline
                        D Offline
                        Delta558
                        Developer
                        wrote on last edited by
                        #11

                        @baw24p FDE is Flight Dynamics Engine, it's been used interchangeably over the years with 'flight model', but the latter seems to be used more recently for the core simulator's flight dynamics setup with FDE used for an individual aircraft.

                        There is an entire thread on the PA28s about the adjustments, why it has taken so long and why there isn't a specific log of changes, but for the Hawk the trim has been adjusted, the elevator effectiveness on the lowest end of the speed range to give less PIO on take off, also several minor tweaks to basic handling.

                        Just Flight FDE developer

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                        • D Delta558

                          @baw24p FDE is Flight Dynamics Engine, it's been used interchangeably over the years with 'flight model', but the latter seems to be used more recently for the core simulator's flight dynamics setup with FDE used for an individual aircraft.

                          There is an entire thread on the PA28s about the adjustments, why it has taken so long and why there isn't a specific log of changes, but for the Hawk the trim has been adjusted, the elevator effectiveness on the lowest end of the speed range to give less PIO on take off, also several minor tweaks to basic handling.

                          B Offline
                          B Offline
                          BAW24P
                          wrote on last edited by
                          #12

                          @delta558 So glad the PIO (Pilot Induced Oscillation) has been sorted, I was starting to think it was me!

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