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  • Scratching Head???

    Powering up the T Rex 250se, before we get to 0 Pitch the heli vibrates & trys to bog down??
    Hitting 0 Pitch everything is fine? Take off hover great!! Then the Tail Kicks em! then it thinks its in stunt mode.
    anyone know whats happening. and then the vibration comes back. trying to land very soft NO wants to bury its self! in the ground? (ESC problem??) I dont know, I'm new to CCPM.

    EVO 180
    MCPX
    Storm 400 rebuilt again!
    KDS 450
    Mini Titan V2
    DJI Phantom fc
    Big Steve

  • #2
    Hi Bell,
    Sounds like you've got too much pitch there. I've got -10, 0 and +10 on mine and it seems plenty. What have you got on your throttle and pitch curves?
    Cheers, Marty
    Marty

    Member https://delynmfc.bmfa.org


    Westland Wessex scratch build http://www.scalerchelis.com/phpBB2/v...hp?f=9&t=14762
    Westland Wasp scratch build https://www.scalerchelis.com/phpBB2/...hp?f=9&t=18668
    Vario Benzine Trainer, Trex 250, Blade Nano. BMFA 'B' cert

    Comment


    • #3
      Originally posted by mole hunter View Post
      Hi Bell,
      Sounds like you've got too much pitch there. I've got -10, 0 and +10 on mine and it seems plenty. What have you got on your throttle and pitch curves?
      Cheers, Marty
      as im new to ccpm THRO N 0-25-50-75-100 PITCH N 0-25-50-75-100 My Swash mix is Aile +60 Elev -60 Pitch +60 I read this some where on the forum.

      EVO 180
      MCPX
      Storm 400 rebuilt again!
      KDS 450
      Mini Titan V2
      DJI Phantom fc
      Big Steve

      Comment


      • #4
        50 on the pitch curve equals 0 pitch, 0 on the pitch curve would normally be around -11 degrees so you might want to up the pitch curve to around 35, 45, 50, 70, 90 to soften it down.

        If you have a pitch gauge you can check what pitch you are actually getting, if not level the fly bar and at mid stick the blades should be flat

        Also just check if the swash plate does what you would expect when you move the sticks.

        Comment


        • #5
          Hi Bell,
          Try a N pitch curve of 45, 47.5, 50, 75 and 100. You could really do with putting a pitch gauge on the blades to see what you've got there. You'll be able to check that the swash is level throughout its travel in normal and IU - disconnect the motor first.

          Cheers, Marty
          Marty

          Member https://delynmfc.bmfa.org


          Westland Wessex scratch build http://www.scalerchelis.com/phpBB2/v...hp?f=9&t=14762
          Westland Wasp scratch build https://www.scalerchelis.com/phpBB2/...hp?f=9&t=18668
          Vario Benzine Trainer, Trex 250, Blade Nano. BMFA 'B' cert

          Comment

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