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  • 401 problems

    Whilst flying the Mini T today, i lost left rudder control totally. It did not cause to much of a problem as it worked normal to the right and still functioned to prevent yaw.
    after landing i unplugged the servo from the gyro and tested it straight from the rx, which showed the servo to be working fine, so i can only assume the gyro has failed?
    It is only a month or two old but has been in a major crash.

    Any one heard of this before?

    Jamie
    JAMIE,

    -Mini Titan e325-
    Sonix cnc head & tail rotor
    GY401 & HDS 577 servo
    HS65mg's
    CY radix blades
    scorpion hk2221-8 motor & 55a esc
    Spektrum DX7-goodbye glitches

  • #2
    Go back to basics first.

    Check that your mechanical linkage is silky smooth, and that the natural centre of the servo is at 90 deg to the push rod and holds the heli straight in 'normal' mode.

    If all this is ok and you still have the problem, then maybe yes, the gyro is bent.
    JR Vibe Fifty fb (YS56)

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    • #3
      Originally posted by The Manager View Post
      Go back to basics first.

      Check that your mechanical linkage is silky smooth, and that the natural centre of the servo is at 90 deg to the push rod and holds the heli straight in 'normal' mode.

      If all this is ok and you still have the problem, then maybe yes, the gyro is bent.

      All of the set-up and linkages seem fine so I must have killed the gyro.
      Just when you get on top of the repair bills something else goes!
      What a night mare.
      Can these gyros be serviced or is it a throw away?

      And does anyone have a 401 for sale?

      Jamie
      JAMIE,

      -Mini Titan e325-
      Sonix cnc head & tail rotor
      GY401 & HDS 577 servo
      HS65mg's
      CY radix blades
      scorpion hk2221-8 motor & 55a esc
      Spektrum DX7-goodbye glitches

      Comment


      • #4
        Hi
        if you go onto the ripmax web site and get the telephone number for there service centre at enfield they will be able to test it for you
        if you can't find the number pm me and i have the number at work
        cheers steve
        kasama srimok 90n
        T rex 700 Ys91sr futaba bls 452 GY520+bls 251 aerospire gov Fromeco reg
        Futaba 10c
        empty bank account

        Comment


        • #5
          before you send it back put another servo into the gyro and try it
          then you'll know if the gyro works, but it may be worth a service if its been in a bad crash
          Hirobo Turbulence D3
          a bunch of bls servo's and a 701 gyro
          Powered by an OS91 hz and a MP2
          Winner of the LHC Scale Cup 2011

          1/4 scale Vario Bell 47 G3
          1/3 scale Vario R22
          2012 LHC Scale Cup Judge
          member of save the flybar foundation
          www.alcesterhelicopterclub.bmfa.org
          sigpic

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          • #6
            Originally posted by funfreex View Post

            And does anyone have a 401 for sale?

            Jamie
            Ive just put 2 on ebay
            Trex 470LP , Devil 380 , Invertix 400 3D Quad 4S , MCPX BL , 180CFX , Next Sim

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