What is the arc of visibility of a towing light?

The arc of visibility for a towing light is specifically designed to ensure that the light can be seen clearly from various angles around the vessel that is towing. A towing light has an arc of visibility of 135 degrees. This means that the light must be visible within a 135-degree sector from the vessel's centerline towards the rear.

This specification is important for maritime safety, as it helps other vessels in the vicinity to understand the navigation status of the towing vessel, helping to avoid collisions and improve situational awareness on the water. The choice of 135 degrees allows sufficient coverage to account for various viewing angles, particularly since vessels often operate in proximity to other boats and at angles where visibility could be obstructed.

Thus, understanding the arc of visibility is crucial for both compliance with maritime regulations and for maintaining safety while navigating.