When a sailing vessel meets a power-driven vessel, what is the appropriate action?

In situations where a sailing vessel meets a power-driven vessel, the sailing vessel, as per the maritime navigation rules, must maintain its course and speed. This principle is based on the understanding that sailing vessels under sail have the right of way over power-driven vessels. By keeping its course and speed, the sailing vessel signals its intent and allows the power-driven vessel the opportunity to maneuver.

The rationale behind this rule is to ensure predictability in the movement of vessels during encounters, thereby promoting safety on the water. If the sailing vessel were to change course or speed unnecessarily, it could lead to confusion or increase the risk of collision.

Other actions, such as giving way and signaling, changing course, or turning on navigation lights, do not apply in this scenario as per the established regulations guiding maritime navigation rights and responsibilities. Turning on navigation lights is a safety measure unrelated to right-of-way rules; it is primarily focused on visibility, particularly in low-light conditions. In summary, maintaining course and speed is the safest and most appropriate action for a sailing vessel when meeting a power-driven vessel.