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Thread: Shrink rules

  1. #1
    Join Date
    Jun 2003
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    Central Coast, Ca
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    32,876

    Default Shrink rules

    Rarely see a complete set of these...
    https://www.ebay.com/itm/20368033238...gAAOSw3aNhfs5u

  2. #2
    Join Date
    Jan 2015
    Location
    Palo Alto, California
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    506

    Default Re: Shrink rules

    My Dad had a set of these from when he worked as a pattern maker at North American Aviation, before the war. He made the wing spar pattern for the B25 before enlisting in the Army Air Corp.

  3. #3
    Join Date
    Jun 2003
    Location
    Central Coast, Ca
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    32,876

    Default Re: Shrink rules

    I rarely do any pattern making anymore, or I would be all over those

  4. #4
    Join Date
    Sep 2015
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    "Driftless" Wisconsin
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    826

    Default Re: Shrink rules

    Sweet. Artifact of interest before the days of hand-held computers.

    (When I first saw this thread’s title I thought it’d be about Psychiatrists maybe but then realized it wasn’t posted in The Bilge.)

  5. #5
    Join Date
    Jun 2003
    Location
    Central Coast, Ca
    Posts
    32,876

    Default Re: Shrink rules

    That would be Shrinks Rule

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