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  6. I can not get the Prop to Feather!

I can not get the Prop to Feather!

Scheduled Pinned Locked Moved TBM 850
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  • E Offline
    E Offline
    ErnieBall
    wrote last edited by
    #1

    HI all! What a great Aircraft this is, As all BKSQ 🙂
    However, I can not get the Prop to Feather! (MSFS2024)

    Does not matter if i set prop lever to Feather with mouse, keys, or with hardware via SPAD, Condition Lever High or Low,

    • I can not get the prop to feather.

    What can be wrong?
    /Dave

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    • Black SquareB Offline
      Black SquareB Offline
      Black Square
      Black Square Developer
      wrote last edited by
      #2

      I haven't checked on the TBM in a while, but it should function much the same as my other turbine aircraft. Would you mind sharing the exact procedure you're using, or maybe a video, if you're able?

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      • E Offline
        E Offline
        ErnieBall
        wrote last edited by
        #3

        Hi! & Thanks, 🙂
        I will Tomorrow ( Its midnight here in sweden :), i will first try the same in MSFS2020as well.
        But I just Do the "Before Take-off checks", incl. Feather. (COND-HI or LOW). (Power Lever Any fwd thrust setting) Will get back tomorrow 🙂

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        • Black SquareB Offline
          Black SquareB Offline
          Black Square
          Black Square Developer
          wrote last edited by
          #4

          No worries! Take your time! Oh, I thought you meant during a shutdown. I might have to check exactly what this procedure is supposed to look like in the real aircraft, but I would expect a substantial RPM drop and increase in torque. In know it's common practice to start the TBM in feather, so ground crew are not blasted by the slipstream while they unplug GPU's and remove chocks. What's your understanding of this procedure?

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          • E Offline
            E Offline
            ErnieBall
            wrote last edited by ErnieBall
            #5

            Where do I post the videos?

            Feathering does work, but in a peculiar way. Watch the video 🙂
            When feathering on a medium to high power setting, i get no torque rise whatsoever, wich i believe we should.
            Also the actual visuals, Both that the blades go to its approx +90 deg pos, and that the NP should drop i think.It only does that on a small PL range just around FI. Seems incorrect to me, esp compared to the -34, -42, -60 and the 67D on the Beech 1900D. But this one maybe is unique there 🙂

            Also as seen in vid no 2, Th AC can be started completely with only the crashbar up!. No other signs of power on the AC.

            I saw some other stuff also but will fly this lovely aircraft alot more so I get to know her! 🙂

            Hope you do not get me wrong here sir, I do Love your aircraft, for me thats mostly into GA your planes are just great, and very accurate compared to most other. Love the technical details you put into your aircraft, probaly for I am a EU/US A&P IA, and also hold a PPL. I Still have my Lic, but no medical after accident. So the flight sims are my joy! 🙂

            Tell me if you need any other info!
            Dave.

            Black SquareB 1 Reply Last reply
            0
            • E ErnieBall

              Where do I post the videos?

              Feathering does work, but in a peculiar way. Watch the video 🙂
              When feathering on a medium to high power setting, i get no torque rise whatsoever, wich i believe we should.
              Also the actual visuals, Both that the blades go to its approx +90 deg pos, and that the NP should drop i think.It only does that on a small PL range just around FI. Seems incorrect to me, esp compared to the -34, -42, -60 and the 67D on the Beech 1900D. But this one maybe is unique there 🙂

              Also as seen in vid no 2, Th AC can be started completely with only the crashbar up!. No other signs of power on the AC.

              I saw some other stuff also but will fly this lovely aircraft alot more so I get to know her! 🙂

              Hope you do not get me wrong here sir, I do Love your aircraft, for me thats mostly into GA your planes are just great, and very accurate compared to most other. Love the technical details you put into your aircraft, probaly for I am a EU/US A&P IA, and also hold a PPL. I Still have my Lic, but no medical after accident. So the flight sims are my joy! 🙂

              Tell me if you need any other info!
              Dave.

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

              Most people post their videos to YouTube privately, or Google Drive, or DropBox, or similar. Sorry that it's a holiday week here in America, so I haven't been at my desk as much to try this. From memory, I agree that the torque probably doesn't rise as much as it should with the feathering, but I think I know a new parameter I can use to add this pretty easily.

              @ErnieBall said in I can not get the Prop to Feather!:

              Also as seen in vid no 2, Th AC can be started completely with only the crashbar up!. No other signs of power on the AC.

              Looking at my code, that seems to be intentional. One would assume this is so an engine restart could be initiated in flight with minimal power in the event of failures on the other buses. I'll check the POH and see what I can find.

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