According to navigation rules, a flashing light is defined as a light that does what?

A flashing light, as defined by navigation rules, is a light that flashes at regular intervals at a frequency of 120 flashes or more per minute. This definition ensures consistency in visual signaling, which is crucial for safe navigation at sea. The specified frequency allows mariners to recognize and understand the light signal quickly and accurately, especially in conditions with low visibility or when identifying navigational aids.

The significance of a minimum frequency helps differentiate between various types of lights used in navigation, such as steady-burning lights and those that flash at different intervals. By establishing a clear standard, the rules promote uniformity in maritime communication, enabling vessels to identify the meaning of different light patterns effectively. Understanding this helps captains and crews make informed decisions while navigating, particularly in complex maritime environments.