What is the nominal range of the white flashing lights on an oil rig?

The nominal range of the white flashing lights on an oil rig is 15 miles. This is a standard specification in maritime navigation to ensure that vessels can detect the presence of offshore installations from a safe distance, enhancing safety in busy shipping lanes and surrounding waters. The range is based on visibility conditions under normal atmospheric circumstances, which includes factors like light intensity and height of the light above sea level.

While other ranges are sometimes associated with different types of lights or markers, the specific nominal range for white flashing lights on oil rigs is established at 15 miles. Understanding this detail is crucial for mariners as it helps them recognize and properly respond to the presence of oil rigs, which may pose hazards to navigation.