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1/96th Kilo blowing fuses at depth

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  • 1/96th Kilo blowing fuses at depth

    Strange phenomenon that I can't seem to trace. The kilo runs fine on surface and 3 ft under but when it hits 5-6 ft it blows a fuse. I can't imagine the pressure causing that much more drag on the prop. Any thoughts?

  • #2
    Originally posted by coryhenry View Post
    Strange phenomenon that I can't seem to trace. The kilo runs fine on surface and 3 ft under but when it hits 5-6 ft it blows a fuse. I can't imagine the pressure causing that much more drag on the prop. Any thoughts?
    Pressure is deranging the running gear at a bearing or coupler, increasing the torque load. There is relative motion between your motor-bulkhead and the rest of the running gear.
    Resident Luddite

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    • #3
      So if this is the cause I should be able to stiffen up the drivetrain mounts and relative motion and stop the friction? Fiberglass strips to stiffen?

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      • #4
        Would increase outside pressure cause the shaft seal lip to tighten up too much against the shaft?
        Make it simple, make strong, make it work!

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        • #5
          If it's running cup seals, that could be, but at those shallow depths (relatively speaking) I can't see the difference being considerable. More likely Dave's thought. Pressure is distorting things, causing binding somewhere.

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