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    Re: Calculator v. Slide Rule for Ex-Meridian Correction
    From: Greg Rudzinski
    Date: 2016 Jan 3, 17:42 -0800

    Here is the preface to Slide Rule For The Mariner.

    From: Hewitt Schlereth
    Date: 2016 Jan 3, 14:43 -0800

    Speaking of books in this context, my favorite is HH Shufeldt's Slide Rule for the Mariner. I got it in 1972 and it was my introduction to the fundamental cel nav formulas. According to him it was a standard tool for air navigators in the Pacific during WW II.
    Hewitt


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