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    Re: Newbie - Variation Question
    From: Pierre Boucher
    Date: 2002 Feb 14, 18:29 -0500

    >Difference between France and Quebec? ;-) I learned
    >
    >         Cv = Cc + W             (True = Magnetic + Variation)
    >         W positive if East
    >         W negative if W
    >
    >Fromn that one finds
    >
    >         Cc = Cv - W
    >
    >so that would say subtract too. (Le Cours de Navigation des Glenans, 1990,
    >says "if the variation is East, it is substracted from the true heading".
    >Also, when taking sightings, the sentence "Est-ce Plus ou Est-ce Moins (Est
    >Plus, Ouest Moins)" is used to go from magnetic to true.)
    
    CPS (both english and french) and USPS I think teach this mnemonic to remember:
    West is Best (+),... East is least(-) going from True to Compass
    
    >It is the first time I hear about East variation being considered negative,
    >but this all arithmetic, right? Add the negative quantity, or substract the
    >positive one, who cares?
    
    Elementary my dear Watson!... ;-)
    By convention:
     From compass to true East is + and West is -
    and
     From true to compass West is + and East is -.
    
    This being said:
    That MLR GPS as gone "bezerk
    **************************************************************************
                    X
                  XX X                                 Pierre Boucher N
                XXX XX               formation en navigation de plaisance
              XXXX XXX                 Ste-Therese (Quebec) Canada
            XXXXX XXX
          XXXXXX XXX          la "VOILE"...  le reste n'est que du vent...
      XXXXXXXXXXXXXX       ''Sail, Sail !''... the rest is only wind
      XXXXXXXXXXXX
                XXXX                      EMAIL: pboucher{at}lavoile.com
                XXX                               "http://www.lavoile.com"
    **************************************************************************
    
    
    

       
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