Your course drawn on the chart is 090°T. Using the variation on this compass rose, what is the magnetic course?
A compass rose from a chart. The magnetic north arrow points a little to the left of true north. Printed across the rose: Variation 4°W. Caption: course drawn on the chart, 090°T.
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094°M. Going from true to magnetic, add westerly variation and subtract easterly ("west is best, east is least"). 090° plus 4° is 094°M.
