What action is required if a vessel is being overtaken?

When a vessel is being overtaken, it is the responsibility of the overtaken vessel to maintain its course and speed. This rule is established under the Navigation Rules (Rule 13) which addresses overtaking situations. The reason for this requirement is to ensure predictability in the movement of vessels. If the overtaken vessel were to alter its course, it could create confusion and increase the risk of collision since the overtaking vessel may not anticipate that change.

Maintaining a constant course allows the overtaking vessel to safely maneuver past the overtaken vessel without needing to adjust its own path or speed significantly. This promotes safe navigation practices and reduces the likelihood of accidents in crowded or busy waters where overtaking maneuvers are common.

The other options suggest actions that either do not conform to established rules or create unnecessary complexities in navigation. Understanding these principles enhances safe practices on the water and ensures compliance with maritime regulations.