COLREG / ARPA / AIS Bridge
Rule 19(d)(i)
Rule 8
🔒 Course / Premium
RV — Target on Starboard Bow (Rule 19(d)(i))
Fog. Target detected on your starboard bow, forward of the beam. Rule 19(d)(i) forbids alteration to port. Altering toward the target (i.e.
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Scenario briefing
Fog. Target detected on your starboard bow, forward of the beam. Rule 19(d)(i) forbids alteration to port. Altering toward the target (i.e. to starboard when the target is fine on the starboard bow) may also be unsafe prefer a substantial starboard alteration to pass astern, or reduce speed.
Applicable COLREG rule(s)
Rule 19(d)(i) — referenced in this scenario. Practising this scenario reinforces correct application under realistic time pressure.
Rule 8 — 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.
Related scenarios
About SkipperCheck simulators
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- ARPA · AIS · COLREG Bridge Simulator — 54 scenarios covering Rules 2, 5–10, 12–19, 23–30, 34 and 35.
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