NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Adjustable Declination
From: Gary LaPook
Date: 2022 Dec 22, 18:49 -0800
From: Gary LaPook
Date: 2022 Dec 22, 18:49 -0800
In the army we "declinated" our compasses at a "declination station" where surveyors had determined accurate direction to a distant aiming point. We would adjust the compass index to allow for the "grid- magnetic angle" so that the compass would read "grid directions" based on the Military Grid Reference System, a modification of the Universal Transverse Mercator Grid system.
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