What action is required by a vessel when making a turn in restricted visibility?

When a vessel is navigating in restricted visibility, it is crucial to adhere to established maritime protocols to ensure safety. The appropriate action in this situation is to sound the necessary signals and reduce speed.

Reducing speed is essential because it allows for greater maneuverability and gives the vessel's operator more time to respond to any unexpected hazards that may arise in limited visibility conditions. Slower speeds also help to control the vessel better, especially in congested waters or when navigating near other vessels.

Additionally, sounding appropriate signals serves to communicate the vessel's actions to others nearby, which is vital in preventing collisions. It helps other vessels determine the position, course, and intent of your vessel, which is critical when visibility is compromised.

By combining these actions, a vessel can navigate more safely and effectively in restricted visibility.