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Thread: Fuel tank outlet point is lower than #1 rib

  1. #1
    Senior Member
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    Default Fuel tank outlet point is lower than #1 rib

    Wow, I am really wearing out the Teamkitfox think tank here lately.

    So installing the fuel tanks.....

    I noticed that the "bulging bowel" area on the underside of the tank where the finger strainer and outlet fitting is located, is below the #1 rib. So fabric will contact the tank here and this "bulge" will show through. The top of the tank is perfectly in line with the top of the #1 rib. Is this normal for the fabric to contact the this area? It did not on my KF 4.

    The site is not letting me upload images.

    If i put a level between #1 and #3 ribs under the fuel tank, the bulge is about 1/4"-3/8" below this plane.

    EDIT: Well chrome let me add pics, however I could not get them oriented correctly.


    C7829374-150A-407D-85DC-1BB2CB7842F0.jpeg

    222CC9BA-E198-427C-9F1C-5299B3EDE981.jpeg
    Last edited by Jerrytex; 12-05-2020 at 09:18 AM.

  2. #2
    Senior Member Dave S's Avatar
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    Default Re: Fuel tank outlet point is lower than #1 rib

    Jerry,

    That is how our early S7 came together - same thing. I don't think it even bothers a person visually after covering and painting.
    Dave S
    Kitfox 7 Trigear (Flying since 2009)
    912ULS Warp Drive

    St Paul, MN

  3. #3
    Senior Member Delta Whisky's Avatar
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    Default Re: Fuel tank outlet point is lower than #1 rib

    Jerry - I don't remember the bulge in mine to be that pronounced but it was there and after covering and painting it really isn't "noticable". (I know where to look but that is another story.) My bigger issue was with the fuel drain hole location - it was just below the level of the shrunk fabric but I wanted to ensure the fabric adhered to the surrounding fiberglass (didn't want it to later pop up off of the fiberglass and rub on the fitting). On one side I had success but not on the other side. Turns out this was another case of me overthinking the situation and, in the end, I'm pleased with the results and haven't experienced any issues. I'm guessing that the tooling and molds used in the production of the parts and the lack of standardization in the "tooling" and set up us home builders create ensures a lot of variation across the board.

  4. #4
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    Default Re: Fuel tank outlet point is lower than #1 rib

    Ok. Just making sure. Maybe an extra doily over this are for prop blast.

    Thanks.


    Quote Originally Posted by Dave S View Post
    Jerry,

    That is how our early S7 came together - same thing. I don't think it even bothers a person visually after covering and painting.

  5. #5
    Senior Member efwd's Avatar
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    Default Re: Fuel tank outlet point is lower than #1 rib

    This is what you can expect.
    Attached Images Attached Images
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

  6. #6
    Senior Member
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    Default Re: Fuel tank outlet point is lower than #1 rib

    Thanks Eddie. That helps.

  7. #7
    Denalifox's Avatar
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    Palmer, Alaska
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    Default Re: Fuel tank outlet point is lower than #1 rib

    I have the same bulge. Im not worried
    S7 STi O-320 currently flying

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