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    Re: suggestion for a satisfactory celnav narrative
    From: Courtney Thomas
    Date: 2005 Jun 3, 12:35 -0500

    Thank you Susan.
    
    Hope you will participate should the necessary ingredients be
    forthcoming to nail this project together for this list.
    
    Cordially,
    Courtney
    
    
    On Fri, 2005-06-03 at 11:00, Susan Johnson wrote:
    > My husband and I have been giving seminars (5 to 7 sessions) on
    > Celestial Navigation a couple of times a year for the past 5 years
    > (with mixed results).  Unfortunately, most attendees want to know how
    > to do everything without expending any study, practice or thinking
    > time are looking for a "cookbook" Celestial Nav.  We have the
    > students  bring their books and sextants to class and we attempt to
    > present an overview that will (1) make it easier for them to go back
    > to the book and understand the text and learn more and (2) allow them
    > to use the Davis celestial Nav forms ... fill in the blanks.... and
    > "voila" ... here's what you have....
    >
    > Our class (Celestial Aggravation) sylabus was as follows:
    >
    > I  Introduction
    >       Tools - pencil, eraser, maneuvering board, sextant, stop watch,
    > chronometer, dividers, etc...
    >       Basic navigation - Lines of Position, Fixes, Running Fixes, etc.
    >       Terminology - Latitude, Declination, Longitude, Equation of
    > Time, Poles (geographic, magnetic, compass, celestial), GMT, GHA, LHA,
    > Geographical Position, Height of Eye, Dip, Parallax, etc.
    >
    > II  The Sextant
    >        Parts of and comparisons
    >        How to Use
    >        Errors and how to test and correct for
    >        Theories on how often to take shots, best methods, averaging,
    > graphing, etc.
    >
    > III   The Almanac -
    >             What information is available
    >             How to read (interpolation)
    >             Time and Longitude
    >              Predicting local noon, sunrise, sunset
    >
    > IV   Practical
    >           Go to Imperial Beach pier where there is access to sun shot
    > from 1 hr before noon until sunset. (we live on the Pacific ocean).
    > Take a series of  "morning" shots, "noon" shots, "afternoon" shots,
    > and if the moon's available - a series of moon shots.
    >
    > VI   Computation  (this frequently stretches over a couple of
    > sessions)
    >           Using HO 229 and/or  HO 249 work out the shots taken during
    > the Practical and plot our position.  For this, we do a "noon" shot, a
    > "morning" shot and an "afternoon" shot.
    >
    > During a 6 session course, we do sample Moon and Start problems.
    >
    > Preparing for this class I have found the following to be useful:
    >
    > My celestial nav links:  http://home.pacbell.net/sohle/appendc.htm
    >
    > Books:
    >
    > In 1975, I used Reed's Almanac w/ versine tables to successfully
    > navigate a sailboat from England to Madeira, through the Carri bean,
    > to Florida with sextant and short-wave radio.
    >
    > Practical Celestial Navigation  by Susan P. Howell
    >
    > Celestial Navigation for Yachstmen by Mary Blewitt
    >
    > One Day Celestial Navigation  by Otis S. Brown
    >
    > Dutton's  and Bowditch
    >
    > Hope this is helpful....
    > Susan Johnson
    
    
    

       
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