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    From: Barry Hudson
    Date: 2002 Oct 18, 17:12 -0700

    Hi,
    Now that we can handle the Cos formula and GC sailing here is a poser!
    A ship sails from a position off Valpraiso Lat 33�01'S, Long 72�10'W to a
    position off San Francisco Lat 37�50'N, Long 123�14'W
    a) Find the initial course and GC distance.
    b) Find the position of the ship as it crosses the equator and the course it
    crosses the equator.
    Barrie Hudson
    
    
    

       
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