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Thread: Forward elevator spar to alumininium trim yoke wear

  1. #1
    Junior Member
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    Brisbane Australia
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    Default Forward elevator spar to alumininium trim yoke wear

    Hi everybody,
    I have a EX Cub CC1865 I built a few years ago and have wear in the aluminium trim yoke assemblies 5/16”holes where the elevator forward spar attaches via the two AN5 bolts.Keen to hear of your experiences and fixes
    Regards
    Kenny Edwards
    Australia

  2. #2
    Senior Member Dan L's Avatar
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    NW MT
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    Default Re: Forward elevator spar to alumininium trim yoke wear

    Quote Originally Posted by Kenny Edwards View Post
    Hi everybody,
    I have a EX Cub CC1865 I built a few years ago and have wear in the aluminium trim yoke assemblies 5/16”holes where the elevator forward spar attaches via the two AN5 bolts.Keen to hear of your experiences and fixes
    Regards
    Kenny Edwards
    Australia
    Can you post a picture?
    Flying Carbon Cub EX #11 since 2011

  3. #3
    Member
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    Mar 2016
    Location
    Idaho
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    89

    Default Re: Forward elevator spar to alumininium trim yoke wear

    Hi Kenny,
    Are you talking about wear in the aluminum hollow round stock that goes thu the trim yoke and connects, via matched drilled holes, to the front of the horizontal stabs to the trim yoke? If this is the case, I would think you could install a new one and match drill it to the horizontal stabs.

    How do you know that this has worn? Just trying to understand as my plane (and I ) continues to age.

    Dan
    Last edited by aeroaddict; 02-23-2020 at 05:05 PM.
    Dan Arnold
    KEUL

  4. #4
    Senior Member Dan L's Avatar
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    NW MT
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    Default Re: Forward elevator spar to alumininium trim yoke wear

    Looking at the picture in the other thread, I wonder how these two holes in the yoke could wear much. There is just a few degrees of rotation here as the yoke moves up and down.

    I’ve seen PA18 yokes wear on the internal jackscrew thread. Could this be what you’re seeing?
    Flying Carbon Cub EX #11 since 2011

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