What is the characteristic of Four Mile Rock Light "1"?

The characteristic of Four Mile Rock Light "1" is defined as a flashing green light that occurs every six seconds, denoted as "Fl G 6s." This means that the light operates in a rhythm where it flashes on for a brief moment, followed by a period of darkness, consistent with maritime navigation lighting standards.

Navigational aids like Four Mile Rock Light are essential for guiding vessels safely through waterways, and the specific flashing interval is crucial for mariners to recognize the signal and understand their location geographically. The six-second interval is an established characteristic that ensures predictability and recognition for sailors navigating near this landmark, contributing to safer navigation practices.

Understanding the different light characteristics and their meanings is vital for maritime operations, as it helps in identifying specific navigational points and enhancing overall safety at sea.