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The Compass Errors

The Compass Errors

The Compass Errors

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•<br />

Example:<br />

If the variation was 05° 55‘ W (in 1979),<br />

decreasing about 4‘ annually, calculate variation<br />

in year 2008.<br />

Solution:<br />

2008<br />

1979<br />

0029 years × 4‘=116‘= 01° 56‘<br />

<strong>The</strong>n: Var. (1979)= 05° 55‘ W<br />

-01° 56‘<br />

03°59‘ W

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