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Osprey and FBW?

By @BiM
    2022-12-17 23:42:55.651Z

    Hi,

    just a small question. I have noticed that in APLN mode, the Osprey requires lots of corrections and trimming. I don't know a lot about the plane, but shouldn't it have fully FBW controls and thus be very stable? Basically, point it where you want it to go and leave it there, just like you do with FBW jets in MSTS?

    Some people criticize that the CONV / VTOL modes are too stable (and I agree they are not perfect), but as I understand it, the Osprey is not supposed to fly like a helicopter, requiring constant corrections. So it's weird that in APLN mode, it does.

    Also, automatic trimming comes hand in hand with FBW, that would be super useful during the transition back from APLN, as the trim sometimes tends to get out of hand during that.

    Again, let me repeat I don't know how the V-22 flies. I am (obviously) not an Osprey pilot, nor have I acces to any documentation. So I might be very wrong here. But, given how computerized aircraft the Osprey is, I'd expect the flying to be much more hands-free experience, even if it might be a little less fun.

    Solved in post #2, click to view
    • 3 replies
    1. I agree with you here - the Osprey is very computerized and indeed it is not supposed to fly like a helicopter in VTOL/CONV mode. The flight model that we currently have is probably as accurate as we can make it work (based on the info we have of the aircraft and MSFS limitations), except for VRS and a few tweaks on how the aircraft handles takeoff that are scheduled to be improved.

      Now, APLN is a different story. APLN is currently using MSFS Modern (CFD based) physics, which does not account for the fact that the aircraft has FBW - it exclusively uses the aerodynamic characteristics of the aircraft to determine the flight model. I'll take a look at some adjustments to further improve the APLN flight model so it behaves more like a FBW aircraft.

      Reply1 LikeSolution
      1. B@BiM
          2022-12-18 01:36:54.717Z

          Thanks, nice to hear it is being considered!

          1. @nenenui
              2022-12-18 13:50:34.097Z

              The (real and virtual) Airbus H145 is flying this way … and it (as far as I understand) is basically a "fake" AP. So the throttle and stick are setting some AP targets.

              Since the virtual H145 has its custom AP code it might be that the standard MSFS AP code might not be good at supporting such FBW features … for helicopters.
              However, the A320 is also operating in FBW "fashion" (maintains the flight vector that it is being put into) … so there might be some way to get this working.

              And … maybe somehow related … I still feel that for a 20 t (heavy) aircraft with gigantic spinning inertia (rotors) the wind is "playing" too easily with the aircraft in APLN mode. No idea what MSFS is using to compute those wind gust displacements … but this big lovely bird feels too much like a Kitfox.