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How accurate is your compass?

3/24/2012

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Even if you have GPS and a chart plotter, all boats need a reliable magnetic compass. If the electronics fail or become unreliable the compass will help get you home, assuming that the compass is accurate and you have a paper chart. Check out the compass entries in the Mariner’s Guide on pp. 106-109, determine the alignment error (p. 14), check for deviation and make a deviation table (pp. 134-135). An accurate compass is an essential safety device.
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    Priscilla Travis spends more than 110 days each year on the water, takes photos, and writes about nautical topics.

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