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Thread: KF IV Support Tube Break

  1. #21
    Senior Member jiott's Avatar
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    Default Re: KF IV Support Tube Break

    Maybe Airfox will chime in; he told me about some kind of gasket remover or something like that which removes powder coat slick as a whistle.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  2. #22
    Super Moderator Av8r3400's Avatar
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    Default Re: KF IV Support Tube Break

    Here is a shot of one of the modifications I did to my "Mangy Fox" project. I did this to strengthen the side truss in expectation of using Grove Gear (a custom longer version).

    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
    YouTube Videos

  3. #23

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    Quesnel B.C.
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    Default Re: KF IV Support Tube Break

    Nice modification, What thickness of material did you use?
    Kurt A

    Kitfox II,
    Rotax 912,
    1100 gross
    Fixer Upper Project

  4. #24
    Super Moderator Av8r3400's Avatar
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    Default Re: KF IV Support Tube Break

    It's 4130 sheet. I don't remember the thickness for sure, but I think .032".
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
    YouTube Videos

  5. #25
    Senior Member
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    Default Re: KF IV Support Tube Break

    The way I land I may need that mod
    I made a 4G landing in my dad's Baby Lakes. It had a recording G meter. The engine quit on take off, and training took over. No damage was done.

  6. #26
    Senior Member Dave S's Avatar
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    Default Re: KF IV Support Tube Break

    The modifications Av8r3400 did looks like great improvement to the strength of this vital area.

    For comparison - the S7 has considerable beefing up in this area - but it has a higher weight & the grove gear too...see attached.

    Dave s
    Attached Images Attached Images

  7. #27
    Senior Member Esser's Avatar
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    Default Re: KF IV Support Tube Break

    To remove powder coat, use permatex gasket remover. It's in a blue spray can.

  8. #28
    Senior Member jiott's Avatar
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    Default Re: KF IV Support Tube Break

    Yea that's the stuff I was trying to remember. Way easier than Scotchbrite or sandpaper.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  9. #29
    Dave Holl's Avatar
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    Default Re: KF IV Support Tube Break

    Anyone know if the gasket remover would work on the protective covering on the flaperons?
    Dave Holl
    Building Kitfox MK7
    Rotax 912ULS

  10. #30

    Join Date
    May 2011
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    Green River UTAH
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    Default Re: KF IV Support Tube Break

    "Anyone know if the gasket remover would work on the protective covering on the flaperons?"


    Dave, if you're talking about the plastic covering on the flaperons ,when I asked Debra McBean how to remove it (mine had been on them for 11 years) she said she had heard that some people had used the gel type paint stripper. I tried that and it worked for me. Put it on thick and let it sit for a while then use a plastic scraper to ease the removal.

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