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  5. Poor Climb performance and IAS issues after update

Poor Climb performance and IAS issues after update

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  • S Offline
    S Offline
    st78bc
    wrote on last edited by
    #1

    Anyone having poor climb performance now? Using IAS mode at 240 kts and a fairly high power setting leads to a stall. I am maybe able to get 200 kts at 1100 fpm now.

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    • MartynM Offline
      MartynM Offline
      Martyn
      JF Staff
      wrote on last edited by
      #2

      The recent didn't include any changes that would cause an issue like this, and it's not something that we've encountered or seen reported. Can you submit a support ticket via the website so that we can investigate?

      Martyn - Development Manager

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      • S st78bc

        Anyone having poor climb performance now? Using IAS mode at 240 kts and a fairly high power setting leads to a stall. I am maybe able to get 200 kts at 1100 fpm now.

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        tcarmona
        wrote on last edited by tcarmona
        #3

        @st78bc Must tell you if you are, by change, using REX Weather Force, it has a bug on the temperature at high altitudes that doesn't let to achieve TGT higher than 650c and so, you should easily see 840c if you set it. They are aware of that bug that made me lose a lot of time. Use the weather from MSFS2020 for now.

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        • MartynM Martyn

          The recent didn't include any changes that would cause an issue like this, and it's not something that we've encountered or seen reported. Can you submit a support ticket via the website so that we can investigate?

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          sbanks75
          wrote on last edited by sbanks75
          #4

          @martyn said in Poor Climb performance and IAS issues after update:

          The recent didn't include any changes that would cause an issue like this, and it's not something that we've encountered or seen reported. Can you submit a support ticket via the website so that we can investigate?

          I’ve been seeing this recently too. If I engage IAS mode after the initial climb, it seems to try and ascend too quickly and drops speed, precisely the opposite of how it should function. I’ve had to use VS mode and keep adjusting the climb speed and thrust to keep to 220 knots, even though it should be able to climb at 250

          This is the 300 model btw.

          Edit: will submit a support ticket

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          • b3lt3rB Offline
            b3lt3rB Offline
            b3lt3r
            wrote on last edited by
            #5

            Dumb question from me: I too have perceived a (slight) decrease in performance and just wondered if it related to the high temperatures in Europe (where I almost exclusively fly) this summer? I think on the one or two days I managed to find clouds or even rain it was better but will not swear to that.

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            • b3lt3rB b3lt3r

              Dumb question from me: I too have perceived a (slight) decrease in performance and just wondered if it related to the high temperatures in Europe (where I almost exclusively fly) this summer? I think on the one or two days I managed to find clouds or even rain it was better but will not swear to that.

              MartynM Offline
              MartynM Offline
              Martyn
              JF Staff
              wrote on last edited by
              #6

              @b3lt3r That could explain it given the lack of changes to performance from our perspective. I fly with live weather, often with a heavy 300QT, and have found performance a struggle at times during these summer months. High temperatures and altitudes have a significant impact, just like on the real aircraft.

              Martyn - Development Manager

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              • b3lt3rB b3lt3r

                Dumb question from me: I too have perceived a (slight) decrease in performance and just wondered if it related to the high temperatures in Europe (where I almost exclusively fly) this summer? I think on the one or two days I managed to find clouds or even rain it was better but will not swear to that.

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                sbanks75
                wrote on last edited by
                #7

                @b3lt3r I don’t think this is my issue. Mine is that in IAS it doesn’t hold a speed, it just tries to keep climbing faster and faster (like 2500 f/m) and loses speed. If I had poor performance due to heat I’d expect IAS to just leave me climbing slowly.

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                • S sbanks75

                  @b3lt3r I don’t think this is my issue. Mine is that in IAS it doesn’t hold a speed, it just tries to keep climbing faster and faster (like 2500 f/m) and loses speed. If I had poor performance due to heat I’d expect IAS to just leave me climbing slowly.

                  MartynM Offline
                  MartynM Offline
                  Martyn
                  JF Staff
                  wrote on last edited by
                  #8

                  @sbanks75 Yes, that's correct. Hopefully our support team will be able to resolve your issue with IAS hold as I've never encountered that.

                  Martyn - Development Manager

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