Rotens. How are they supposed to work ?

  • Name of Control (Download Title)
    Trim wheels
    Version Number
    Beta combo

    V2 rig firm as a rock, all flight controls working, except trim wheels.

    Both show identical (and useless) behaviour.

    The whole unit has been stripped down and checked, all wiring minutely inspected for strays (none)

    Connections confirmed YBG at Roten to B Y G at socket.

    Control Options in MSFS show Rudder trim inputs as 9 and 10 (R/L) and Elevator as 11 and 12 (U/D).

    When rotated, both wheels show the same behaviour

    Rudder R 9 lights up, 10 joins 9, 9 goes off, 10 goes off, repeat ad infinitum

    Rudder L 10 lights up, 9 joins 10, 10 goes off, 9 goes off, ditto

    Elevator D 11 lights up 12 joins 11, 11 goes off, 12 goes off, ditto

    Elevator U 12 lights up 11 joins 12, 12 goes off, 11 goes off, ditto


    Put another way both controls sequence A, A+B, B off repeatedly with the sequence reversing as the control is reversed.


    I would expect that the proper behaviour would be a repeating sequence of A pulses in one direction and B pulses in the opposite.


    What's wrong with the encoders ?



    btw this investigation started after an unexpected nose dive into the Solent, because a little nudge of the trim can leave it in any state, A , A+B, B or off. Obviously permanent A or B are not desirable.

    PPL at Goodwood '72, no longer current. Missed out on flying the Grace Spitfire in '88 when the owner died in a motor accident shortly beforehand. Decided last Xmas to divert the money from a planned 20 minute "Spitfire experience" into a new high spec VR PC, and inspired by Phil, a virtual IXc

    Edited once, last by Harepath ().

    • Official Post

    Hi. Sounds like the board isn’t set for the inputs to be treated as encoder inputs. I can’t remember which video covers this, but this download explains it too.


  • :thumbup:

    PPL at Goodwood '72, no longer current. Missed out on flying the Grace Spitfire in '88 when the owner died in a motor accident shortly beforehand. Decided last Xmas to divert the money from a planned 20 minute "Spitfire experience" into a new high spec VR PC, and inspired by Phil, a virtual IXc

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