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    Re: Brown-Nassau CN Plotter
    From: Harri Ojanen
    Date: 2014 Nov 22, 01:50 -0800

    Hello,

    It has been very interesting following your discussions on these different long-hand and graphical methods for celnav. My personal interest is in all non-electronic navigation methods, even though when sailing on my yacht I do rely on GPS and everything else for safety. Anyway I thought about giving this Brown-Nassau slide rule a try. The American Mathematicl Monthly paper was very useful. Attached is a first version of the line diagram as a PDF file (hopefully the attachment comes through), it should match the one in the paper. I made a program that generates these, so all kinds of fine tuning should be fairly easy now.

    Bets wishes from a snow covered Helsinki,

    Harri Ojanen

    60N 25E

     



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