What is the visibility range of a masthead light for a power-driven vessel?

The visibility range of a masthead light for a power-driven vessel extends to 225 degrees. This means that the light must be visible from the bow of the vessel to 22.5 degrees aft of the beam on either side. The placement of the masthead light ensures that it provides visibility to other vessels approaching from those angles, enhancing navigational safety during nighttime or reduced visibility conditions.

The specific angle of 225 degrees allows for an effective indication of the vessel's position and direction to other nearby boats, which is crucial in preventing collisions. The masthead light must also be mounted at a certain height above the vessel's hull to ensure it can be seen over other structures or obstacles. Understanding this requirement helps in navigating and operating vessels safely and in compliance with navigation rules.