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Thread: Nose Ribs

  1. #1
    Junior Member
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    Mar 2020
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    Whitehouse Station, NJ
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    Default Nose Ribs

    If you look at page 85 of the wing manual, photo 87.

    You will notice that the flanges on the end of the inside double rib is trimmed (narrowed to fit under the nose rib flange).

    Now look at page 120 of the same manual, photo 136.
    While the picture shows the inside single rib flange also trimmed, it is not on the actual part and the nose rib flange scrapes on top of it. I have attached a picture of this. Were the center rib flanges supposed to all be trimmed (either by me or done at the factory?

    Neil Rosoff
    Attached Images Attached Images

  2. #2
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    Feb 2020
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    Varese, ITALY
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    Default Re: Nose Ribs

    Did you had any answer on that question ?
    I have the exact same problem !
    Last edited by PBY Catalina; 04-12-2021 at 06:32 AM.

  3. #3
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    Sep 2018
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    Cape Coral,fl
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    Default Re: Nose Ribs

    Quote Originally Posted by PBY Catalina View Post
    Did you had any answer on that question ?
    I have the exact same problem !
    This is not well documented in the manual but you need to flatten the nose rib flange with duck bill pliers and bend downward slightly so it doesn't push into the fabric. You should do this with the nose rib in place.

    I think every builder is perplexed by this.

  4. #4
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    Feb 2020
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    Thumbs up Re: Nose Ribs

    Quote Originally Posted by kevestes View Post
    This is not well documented in the manual but you need to flatten the nose rib flange with duck bill pliers and bend downward slightly so it doesn't push into the fabric. You should do this with the nose rib in place.

    I think every builder is perplexed by this.
    Thanks Kevin !
    That's easy to do !

  5. #5
    Senior Member
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    Jul 2015
    Location
    Broken Arrow, OK
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    699

    Default Re: Nose Ribs

    Quote Originally Posted by nrosoff View Post
    If you look at page 85 of the wing manual, photo 87.

    You will notice that the flanges on the end of the inside double rib is trimmed (narrowed to fit under the nose rib flange).

    Now look at page 120 of the same manual, photo 136.
    While the picture shows the inside single rib flange also trimmed, it is not on the actual part and the nose rib flange scrapes on top of it. I have attached a picture of this. Were the center rib flanges supposed to all be trimmed (either by me or done at the factory?

    Neil Rosoff
    http://forum.cubcrafters.com/showthr...ll=1#post21596
    Dave Embry
    "You only live once.......but if you do it right.........once is enough."..

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