Navigation General · Light Characteristics
A FIXED light (F) is described as:
- AA light that shows a single flash at regular intervals
- BA continuous, steady light with no interruptions✓ Correct
- CA light that is on longer than it is off
- DA light that alternates between two colors at equal intervals
Explanation
A Fixed (F) light is a continuous, uninterrupted light — it does not flash or occult. It remains on at constant intensity.
Authority: 33 CFR 62 (U.S. ATON System)
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