If you have a target north of you and it's heading south, if you plot it's course on the map starting with the target and drawing a line south the tool help compass rose will show you it's course where the line intersects the rose.
Ex. ship heading south will show a course of 180° when you plot the line.
Knowing the targets true course is helpful in planing an intercept or in some shooting methods.
Magic
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Reported lost 11 Feb. 1942
Signature by depthtok33l
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