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PA28R pulls left

Scheduled Pinned Locked Moved PA-28R Arrow III
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  • S Offline
    S Offline
    sluflyer06
    wrote on last edited by
    #5

    feels very normal to me, many of the default planes have normal aircraft effects that need to be bumped up like adverse yaw, p-factor, etc, as a real world pilot the arrow seems fine to me.

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    • L Offline
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      lapinobel
      wrote on last edited by
      #6

      So some people say it's normal, some say it's a bug... Well. I just can say that other prop planes do not show this behaviour, only the Arrow does. This is not with taking off only, but also during flight at lower throttle speeds.

      DerekD S 2 Replies Last reply
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      • L lapinobel

        So some people say it's normal, some say it's a bug... Well. I just can say that other prop planes do not show this behaviour, only the Arrow does. This is not with taking off only, but also during flight at lower throttle speeds.

        DerekD Offline
        DerekD Offline
        Derek
        JF Staff
        wrote on last edited by
        #7

        @lapinobel

        Are you definitely using the Modern flight model in the sim?

        https://support.justflight.com/support/solutions/articles/17000114904-why-is-the-aircraft-behaving-erratically-after-take-off-

        L 1 Reply Last reply
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        • DerekD Derek

          @lapinobel

          Are you definitely using the Modern flight model in the sim?

          https://support.justflight.com/support/solutions/articles/17000114904-why-is-the-aircraft-behaving-erratically-after-take-off-

          L Offline
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          lapinobel
          wrote on last edited by
          #8

          @Derek yes I am. Just checked. To be clear, I notice the plane 'rolling' to the left. So it's not a rudder doing strange things, it's my plane doing what it would be doing if I would turn my yoke to the left.

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          • D Offline
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            Delta558
            Developer
            wrote on last edited by
            #9

            P-factor, propwash effect, torque, there are a load of things that create a left hand movement. Then there's the dihedral effect, so any rolling effect is exacerbated by the yaw-induced roll from that.

            I have a set of rudder pedals. I only need a small squeeze on the right one to maintain straight flight. This is in line with discussions with PA28 pilots and my own expectations from flying other aircraft.

            Don't compare it to what other aircraft do in the sim - default aircraft have never been the pinnacle of accuracy! have a look at videos of the real thing on YouTube (there are plenty with instructors discussing flight) or even go fly the real thing if you get the chance.

            Just Flight FDE developer

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            • L Offline
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              lapinobel
              wrote on last edited by
              #10

              Just made a small video. First one right after take off, full throttle. Second with plane trimmed out, throttle at around 50% - mixture around 70%. Yoke perfectly straight, no winds.

              https://youtu.be/LQFMozCfbC8

              https://youtu.be/HMtcpvIAlUU

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              • L lapinobel

                So some people say it's normal, some say it's a bug... Well. I just can say that other prop planes do not show this behaviour, only the Arrow does. This is not with taking off only, but also during flight at lower throttle speeds.

                S Offline
                S Offline
                sluflyer06
                wrote on last edited by
                #11

                @lapinobel comparing higher end 3rd party planes to default or planes like carenado is simply meaningless since they are not yet properly tuned for effects Especially that are related to yaw moment. Go fly AT Simulations piaggio, another well modeled plane, it also needs rudder input under higher power settings in level flight. You are used to that broken aspect of fs2020 where all the planes basically never need rudder coordination.

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                • L Offline
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                  lapinobel
                  wrote on last edited by
                  #12

                  Ok thx. Just learning...

                  M 1 Reply Last reply
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                  • L lapinobel

                    Ok thx. Just learning...

                    M Offline
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                    micahjmesser
                    wrote on last edited by
                    #13

                    @lapinobel as an actual PA28 pilot I will say the input to maintain straight and level rarely takes any rudder input, but sometimes does depending on winds. During takeoff and landing, it absolutely needs rudder input. As another individual mentioned, there are a bunch of factors causing this a to occur.

                    I will say that on the ground, the nose wheel friction is nowhere near where it needs to be which causes you to slip and slide over the runway if you are not careful. In real life, physics of friction act on the nose wheel and make it very difficult to turn at higher speeds, thankfully the rudder provides the necessary air control.

                    Just my two cents.

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                    • L Offline
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                      lapinobel
                      wrote on last edited by
                      #14

                      So then the plane rolling to the left this hard is not normal?

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                      • M Offline
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                        metzgergva
                        wrote on last edited by metzgergva
                        #15

                        I think the tendency to roll left from engine torque is maybe a tad to much. But you should be able to eliminate that with rudder trim.
                        Seems to work in terms of clicking just the wrong way and too much per single click.
                        When turning the wheel clockwise which should be a nose to the right effect the aircraft yaws left.

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                        • Q Offline
                          Q Offline
                          Quijote
                          wrote on last edited by
                          #16

                          I am used to the torque effect, especially on powerful planes, but what I am getting with the PA28 is totally different. It starts on takeoff with normal torque effect that I correct with the pedals like normal. About halfway down the runway, the plane makes a wild left turn 90 degrees from the runway. I try to compensate, but at this point I am at full throttle and recovering from that kind of turn is almost impossible. I have had a few uneventful takeoffs, but today they were all horrible. I later flew the Diamond D62 without any such behavior.

                          M C 2 Replies Last reply
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                          • Q Quijote

                            I am used to the torque effect, especially on powerful planes, but what I am getting with the PA28 is totally different. It starts on takeoff with normal torque effect that I correct with the pedals like normal. About halfway down the runway, the plane makes a wild left turn 90 degrees from the runway. I try to compensate, but at this point I am at full throttle and recovering from that kind of turn is almost impossible. I have had a few uneventful takeoffs, but today they were all horrible. I later flew the Diamond D62 without any such behavior.

                            M Offline
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                            metzgergva
                            wrote on last edited by
                            #17

                            @Quijote
                            This may also come from the unfortunate x-wind behaviour of real weather in MSFS. Any x-wind is reduced at low speeds but at a point it kicks in much to much and generates that effect - a defect in the surface wind model

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                            • Q Quijote

                              I am used to the torque effect, especially on powerful planes, but what I am getting with the PA28 is totally different. It starts on takeoff with normal torque effect that I correct with the pedals like normal. About halfway down the runway, the plane makes a wild left turn 90 degrees from the runway. I try to compensate, but at this point I am at full throttle and recovering from that kind of turn is almost impossible. I have had a few uneventful takeoffs, but today they were all horrible. I later flew the Diamond D62 without any such behavior.

                              C Offline
                              C Offline
                              copper
                              wrote on last edited by
                              #18

                              @Quijote said in PA28R pulls left:

                              the plane makes a wild left turn 90 degrees from the runway

                              Turn as in rudder or turn as in aileron?
                              You might have the same issue as I did - the autopilot got turned on by something. For me this was usually caused by turning the coupler knob, but basically anything you do prior takeoff with the AP controls might cause this.

                              Check here, I have a video of how it goes for me if I force this bug:
                              https://community.justflight.com/topic/1724/autopilot-engages-by-turning-coupler-dial

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                              • M Offline
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                                maorgr
                                wrote on last edited by maorgr
                                #19

                                Hi,

                                Using the thrustmaster HOTAS Warthog here and I'm experiencing the same issue - no winds, no thrust at 100%. prop power at about 80% - the plane keeps banking left...could use some advice here.

                                Thank you.

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                                • C copper

                                  @Quijote said in PA28R pulls left:

                                  the plane makes a wild left turn 90 degrees from the runway

                                  Turn as in rudder or turn as in aileron?
                                  You might have the same issue as I did - the autopilot got turned on by something. For me this was usually caused by turning the coupler knob, but basically anything you do prior takeoff with the AP controls might cause this.

                                  Check here, I have a video of how it goes for me if I force this bug:
                                  https://community.justflight.com/topic/1724/autopilot-engages-by-turning-coupler-dial

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

                                  @copper said in PA28R pulls left:

                                  @Quijote said in PA28R pulls left:

                                  the plane makes a wild left turn 90 degrees from the runway

                                  Turn as in rudder or turn as in aileron?
                                  You might have the same issue as I did - the autopilot got turned on by something. For me this was usually caused by turning the coupler knob, but basically anything you do prior takeoff with the AP controls might cause this.

                                  Check here, I have a video of how it goes for me if I force this bug:
                                  https://community.justflight.com/topic/1724/autopilot-engages-by-turning-coupler-dial

                                  for me at least - this is not the plane's behavior.

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                                  • S Offline
                                    S Offline
                                    sluflyer06
                                    wrote on last edited by
                                    #21

                                    These ground handling complaints sound like the issues stemming from the core simulation deficiencies in msfs currently, asobo is aware ground handling during takeoff and landing roll is not right, the fix is a major rework of friction both static and dynamic, it's in-work but no eta yet as it's a big job. I do however feel JF has done a great job working with it.

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                                    • J Offline
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                                      jme1111
                                      wrote on last edited by
                                      #22

                                      Try adding a P2 with the same weight (170lbs) before you start the flight.

                                      YankeeTendy35Y 1 Reply Last reply
                                      1
                                      • J jme1111

                                        Try adding a P2 with the same weight (170lbs) before you start the flight.

                                        YankeeTendy35Y Offline
                                        YankeeTendy35Y Offline
                                        YankeeTendy35
                                        wrote on last edited by
                                        #23

                                        @jme1111 This is what solved the problem for me as well.

                                        1 Reply Last reply
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                                        • A Offline
                                          A Offline
                                          archibalduk
                                          wrote on last edited by
                                          #24

                                          I'm getting a lot of left-roll in the air like @lapinobel too. Applying some right rudder trim lessens the effect but I haven't been able to get it spot on. In order to fly level I have to keep the yoke angled to slightly to the right.

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