What is the compass course of a vessel heading SW?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 225.0°
The compass rose is divided into 360 degrees. The cardinal point South is 180°, and West is 270°. Southwest (SW) lies exactly halfway between these points. Calculating the midpoint, 180° plus 45° equals 225.0°, which represents the standard bearing for a Southwest heading in marine navigation.
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