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    Re: Calculators
    From: Craig Scott
    Date: 1999 Sep 03, 4:00 PM

    With the solar maximum (flares) predicting to increase until peaking about
    2002, I wouldn't rely too much on GPS satellites and other electronic
    navigation aids being reliable.
    
    Craig Scott
    Columbia, South Carolina
    
    
    -----Original Message-----
    From    Navigation Mailing List [mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM]
    On Behalf Of Bill Murdoch
    Sent:   Thursday, September 02, 1999 13:49
    To:     NAVIGATION-L@LISTSERV.WEBKAHUNA.COM
    Subject:        Re: Calculators
    
    I guess my first point is that astro navigation calculators run from $10
    trig
    function calculators to Pentium IIIs.  All of them are useful.  The first
    $10
    replaces several pounds of sight reduction books by solving the cosine
    formula.  The next $25 will get you a solar almanac and replace the dip and
    refraction tables along with the pencil needed to do the sums to reduce a
    sun
    sight.   The next $50 will buy enough calculator to replace all the other
    information in the Nautical Almanac.  The last $2000 makes it all very
    slick.
     There are good reasons for stopping anywhere along that path; especially in
    the days of GPS when astro is basically a hobby.
    
    Bill Murdoch
    

       
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