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    Re: Celestial Navigation classes in the UK in June
    From: Greg Rudzinski
    Date: 2020 Feb 8, 12:33 -0800

    Frank,

    I know you don't think much of the Martelli tables but I think it worthy to add  to the 19th century navigation methods discussion as both a way to reduce longitude or a Sumner line. Robert Bernecky did a nice table V up-grade which I have copied and included in my 1934 edition (53 pages). See link to table. 

    http://fer3.com/arc/m2.aspx/Corrected-Martelli-Tables-Bernecky-jan-2013-g21699

    The polar coordinate function on some pocket trig calculators would be a worthy option to combine with the law of cosines pocket trig calculator method for modern celestial sight reductions. See attached PDF

    Greg Rudzinski

    File:
    f1-Polar-Reduction.pdf
    File:
    f1-fx-300ES_PLUS_E.pdf
       
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