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    Re: Traditional navigation by slide rule
    From: Gary LaPook
    Date: 2016 Oct 26, 02:22 -0700

    And using a Pickett N 3-T 10 inch slide rule i came up with Zn=293.05° and Hc= 66.2° (66°12'.) My calculator answers are Zn=292°-56.4' (292.94°) and Hc=66°13.2' so the slide rule was off by 0°1.2' for the Hc and 0.11° for the Zn

    gl

       
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