The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "directional" stability? Illustration SF-0048

Official USCG Answer & Rule Citation

Correct Answer: Option C — Yaw

Yaw is the angular rotation about the vertical axis, defining the vessel's directional stability. It describes the tendency of the ship to maintain its course. Effective directional stability ensures the vessel resists unintended deviations from the intended heading, which is essential for safe navigation and steering control.

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