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Measure your course
Place the center of the Charting Pal so that it
rests on top of your course line at the beginning of
your leg. Find a latitude or longitude line that
corresponds to a red square on the Charting Pal. You
can now read your course heading on the outer ring
of the Charting Pal.
When lining up your
tool with the black lines on your chart it is
preferable to use the longitude, as it is always
pointing north. That said, latitude lines work just
fine.
Using the example above we have a course heading of
130 degrees. This number is called a true course
number.
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