Rules of the Road · Light Identification — RAM
At night a vessel displays three all-round lights in a vertical line — red, white, red — plus masthead lights, sidelights, and a sternlight. She is:
- AA vessel constrained by her draft
- BA pilot vessel
- CA vessel restricted in her ability to maneuver, making way✓ Correct
- DA vessel not under command
Explanation
Red-white-red in a vertical line identifies a vessel restricted in her ability to maneuver. Because she also shows masthead lights, sidelights and a sternlight, she is making way through the water.
Authority: COLREGS/Navigation Rules, Rule 27(b)
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