NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Compass Checks at Sea
From: Jeremy C
Date: 2008 May 23, 03:54 EDT
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From: Jeremy C
Date: 2008 May 23, 03:54 EDT
C is compass reading
D is deviation (added or subtracted to the compass reading)
M is is magnetic after adjusting for deviation
V is variation (to be added or subtracted to magnetic for true)
T is true
A (add)
E (East) Add east variation, subtract west variation.
That helps to keep what deviation is straight in my mind, as well as
differentiating it from land declination (variation to me).
Bill B
D is deviation (added or subtracted to the compass reading)
M is is magnetic after adjusting for deviation
V is variation (to be added or subtracted to magnetic for true)
T is true
A (add)
E (East) Add east variation, subtract west variation.
That helps to keep what deviation is straight in my mind, as well as
differentiating it from land declination (variation to me).
Bill B
I tend to use this in the opposite direction TVMDC(AW). I was
taught the memory aid "True virgins make dull companions at weddings."
There is another one that is less bawdy but I only remember "True Virginian's
marmalade..." That one wasn't quite as profound to a young cadet trying to
learn navigation.
Jeremy
Navigation List archive: www.fer3.com/arc
To post, email NavList@fer3.com
To , email NavList-@fer3.com
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