[TowerTalk] True North and all that stuff

LYN designserv@ipass.net
Thu, 12 Nov 1998 14:27:19 -0500

Roy Maull wrote:
       Declination is the angle of a heavenly body with the earths horizon
        Variation is the offset of magnetic north to true north a some location
        Deviation is the amount of correction persuant to a particular compass at
different points around the compass dial, it is not necessarily the same
all the way around.

>         Hurrah for recurring threads and all the various permutations there of!!!!!

Yeah, but in addition to declination, variation, and deviation, pilots wantto add to
this thread the addition of a wind vector and call it heading, and
I presume the sailors want to add a vector for currents and will want to
call it something -- so the permutations go on and on.  Guess we
finally have to account for drift around the milky way and thru
time, etc.

Lyn, W4WDN

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