Rule 28 — CBD Vessel Lights — COLREG Practice Scenario | SkipperCheck
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COLREG / ARPA / AIS Bridge Rule 28 🔒 Course / Premium

Rule 28 — CBD Vessel Lights

NIGHT. A vessel shows THREE all-round RED lights in a vertical line in addition to the lights required for a power-driven vessel. What is she?

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Scenario briefing

NIGHT. A vessel shows THREE all-round RED lights in a vertical line in addition to the lights required for a power-driven vessel. What is she?

Applicable COLREG rule(s)

Rule 28 — referenced in this scenario. Practising this scenario reinforces correct application under realistic time pressure.

Why it matters

COLREG knowledge is the foundation of safe ship handling. Most maritime collisions happen because watchkeepers either misidentified the situation, applied the wrong rule, or acted too late. This scenario lets you train pattern recognition + correct response under time pressure — the exact skill the rules are designed to support. RYA, Yachtmaster, STCW and most national exams expect you to apply COLREGs reflexively, not just recite them.

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