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ds821 servos and ar7000

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  • #1

    ds821 servos and ar7000

    hi all,
    iv been looking at tx dx7 with rx and servos
    http://http://hobby-hangar.co.uk/pro..._4-ds821_md2_/

    are the servos and the rx good? iv been looking at different servos and rx's but its hard to tell the difference between different servos and rx.

    thanks jon
    Thanks
    Jonathan
    trex 600
    Trex 450 v2
    and an

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  • #2
    It depends what your using the servo's for. They are not suitable for anything more than a 30 size nitro (ie raptor 30v2) & 50 size electrics (Trex 600e) Most people will recommend that you dont use them at all as the are prone to failure!
    Del
    Outrage Velocity 50 N2 FBL, OS55 Powered -Built and almost ready to fly

    Climb-Out

    3D Scotland

    Proud owner of 2 EGS

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    • #3
      There were instances of the output shaft breaking on DS821 servos.
      Many folks are worried about using them for functions other than throttle.
      however many other people are using them for up to .50 nitros successfully. Its quite possible that the problem output shafts were just an early batch but as with all things in this hobby once they heard or experienced issues many folks are reluctant to try an item again.

      The DX7 outfits all come complete with servos it seems. Some shops such as inwoods will sell them without servos (they take them out and sell the servos separately). The DS821 are quiote popular I think with plane fliers.
      www.heli-extreme.co.uk a good club in south Sheffield
      600n pro BeastX Align DFC head bls251, 3xbls451, align gov, 600d, 2in1
      trex500, BeastX DS510 swash, Beast X cutr and carve head DS520 HK3026-1900, Align 425D blades, 5S4200 rev'trix, K&BDD dampers, AR6200
      "450" superframeSTK, align DFC head v2tail, hk22281-8 on 3S 9650w9257gear commander 55A align 325D hitec digitals Tarot ZYX, AR6100e
      MCPX kbdd tail and blades, miniaviation bats

      Dont spend more flying models than it costs to fly for real

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      • #4
        if you ring adie at h/h im sure he would do you a deal to swap the servo's! the rx is ok
        Ron

        hobby-hangar.co.uk
        SWRCH-GO big or Go home!
        http://www.ultimatebuildandfly.co.uk/

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        • #5
          Originally posted by moyesboy View Post
          however many other people are using them for up to .50 nitros successfully.
          When I was learning some time ago I used these on a T-Rex 600e for 10 month without one problem.

          Survived a couple of crashes and never had a failure or any stripped gears.

          As quoted I presume one bad batch cost them some severe bad press and have never got rid of it.

          If I were to only fly gentle circuits and loops/Rolls etc again I wouldnt hesitate in using them again.

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          • #6
            I am too considering possibly using the DS821s to replace the analog metal geard ones on my Raptor 30,

            but im sending my heli to Lee, so ile let him decide
            "Anger and Frustration bring the best out of my flying ability.. because generally I don't give a shit either if the machine hit's the deck or stay's in the air - both will accomplish satisfaction, but most of all it exerts the feeling of flying conservatively. - Callum"

             www.callumheli.co.uk

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            • #7
              cheers for the info guys, ill give h-h and ring to see what they can do.
              thanks again
              Thanks
              Jonathan
              trex 600
              Trex 450 v2
              and an

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