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sirpent commented on the word true virgins make dull companions
Correction to oroboros' comment:This formula converts True Course to Compass Course. Magnetic course is the middle step (TV*M*DC)(T)rue course +/- magnetic(V)ariation = (M)agnetic coursethen(M)agnetic course +/- compass(D)eviation = (C)ompass course
February 20, 2009
oroboros commented on the word true virgins make dull companions
This is a mnemonic for the formula to convert True Course into Magnetic Course by applying the known magnetic variation for the locale over which a pilot is navigating his craft. Nowadays all done by "black box" computer technology.(T)rue course +/- magnetic(V)ariation - compass(D)eviation = magnetic(C)ourse
January 2, 2007
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