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    Re: Logic of shades
    From: Gary LaPook
    Date: 2018 Oct 30, 21:51 -0700

    Try this link:

    https://sites.google.com/site/fredienoonan/other-flight-navigation-information/modern-bygrave-slide-rule

    ---------------------------------------------------------------

    You're quite correct about slide rules. Common slide rules don't have quite the accuracy for full celestial navigation calculations, but you can use them for tasks like interpolation and some specialty sights. If you're a fan of slide rules, you should inquire here about the Bygrave and other cylindrical slide rules. These are designed to create very long scales by wrapping them around a cylinder. There has been great hobbyist interest in these here in the NavList community over the years.

    gl

       
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