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    Re: Geodesic versus great circle
    From: Paul Hughes
    Date: 2018 Nov 19, 06:29 -0800

    Routing is done with a chart, ruler, pencil - and a visual check. Cape Verde corner to Cape of Good Hope: a rhumb line. For an obscure route you might check Ocean Passages of the World, but it would still be a mercator course. For surface navigators, Great Circles are only ever found in the schoolroom - but usefully.

       
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