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Thread: Tail brace wires

  1. #1

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    Default Tail brace wires

    Has anyone replaced the tail brace wires on an experimental or built there airplane with 4130 tubing instead flying wires. I am building a Wagabond and I believe these are the weakest part of the airframe. Anyone have any thoughts or info?

  2. #2
    Administrator Steve Pierce's Avatar
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    Default Re: Tail brace wires

    I have not seen an issue with tail brace wires but you could do like Aviat does on the Husky.

  3. #3

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    Default Re: Tail brace wires

    With the exception of the streamlined wires that had an AD on them, there hasn't been an issue with the tail brace wires. Adding tubing increases weight and drag. The higher HP airplanes have a lot of vibration back there, and some have used tubing, or come up with other solutions, but for airplanes with 160hp or less, it isn't an issue. If you are really worried, since the PA-15/17 uses a tab rather than a jackscrew, you could put 4 wires on like the Pawnee.

  4. #4

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    Default Re: Tail brace wires

    My Starduster Too that I built has 4 streamline wires on the top and 4 streamline tubes on the bottom. I have seen round 4130 on the bottom rather than streamline since round is cheaper. At the speeds these planes go streamline or round probably doesn't make much difference.


  5. #5

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    Default Re: Tail brace wires

    Thanks for the replies everyone, I think I am going to go with 4130 on the bottom and wires on the top. I have seen several issues with wires over the years. I appreciate the info from everyone here. The bottom wires are easy to get damaged and not see it. Even a small nick can cause havoc.

  6. #6
    Administrator Steve Pierce's Avatar
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    Default Re: Tail brace wires

    I'd be interested to hear your experience with damage to round tail brace wires. I operate weekly on sand a gravel and the only issue I have had was a slight tweak to a lower tail brace wire from a stick I hit with the mains. My prop however is a different story.
    36979.jpeg

    36981.jpeg

  7. #7

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    Default Re: Tail brace wires

    Iíve seen a lot more issues with the attach fittings welded to the lower longer on than the wires themselves.


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  8. #8
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    Default Re: Tail brace wires

    Quote Originally Posted by Steve Pierce View Post
    I'd be interested to hear your experience with damage to round tail brace wires. I operate weekly on sand a gravel and the only issue I have had was a slight tweak to a lower tail brace wire from a stick I hit with the mains. My prop however is a different story.
    36979.jpeg

    36981.jpeg
    Any noticeable difference in elevator authority with the gap seals?


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  9. #9
    Administrator Steve Pierce's Avatar
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    Default Re: Tail brace wires

    Yes, seem to help.

  10. #10
    JPerkins's Avatar
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    Default Re: Tail brace wires

    Quote Originally Posted by Rotormech View Post
    Any noticeable difference in elevator authority with the gap seals?


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    I can second that.

    Also I've had a couple nicks from gravel I had to burnish off my lower wires.

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