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Contra-rotating Brushless Motor

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  • Contra-rotating Brushless Motor

    My friend was wondering, could Contra-rotating Brushless Motors they sell like this one be used for RC submaines that need a to be Contra-rotating. He said he would be adding an extension to each shaft.

    Click image for larger version  Name:	HTB1F._bLFXXXXblXXXXq6xXFXXXV.jpg Views:	0 Size:	46.3 KB ID:	150483
    Last edited by Sinksalot; 06-06-2021, 05:42 PM.

  • #2
    Motors like that are what I'll be running in my big Delphin. Yes, you need contra-rotating to offset rotational torque.

    Bob

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    • #3
      Thanks Bob

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      • #4
        I’ve posted about these motors before. Only problem I see is in the differential balancing between each motors total thrust.

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        • #5
          I run twin KMB jets in the Mark V-two ESCs (of course) and a wye connection to a single channel. When I spin them up dry, (between big boats and airplanes I have a good ear for synchronization) -they sound pretty much in sync. It should probably be similar with a coaxial outrunner.

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