COLREG / ARPA / AIS Bridge
Rule 19(d)(i)
Rule 8
🔒 Course / Premium
RV — Target on Port Bow (Rule 19(d)(i))
Fog. A target is detected 030 on the port bow (forward of the beam), closing with significant risk of collision.
This scenario is part of the full library.
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Scenario briefing
Fog. A target is detected 030° on the port bow (forward of the beam), closing with significant risk of collision. Rule 19(d)(i): avoid an alteration of course to PORT for a vessel forward of the beam. Manoeuvre to open CPA to 1 NM.
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
SkipperCheck offers two browser-based maritime training simulators:
- ARPA · AIS · COLREG Bridge Simulator — 54 scenarios covering Rules 2, 5–10, 12–19, 23–30, 34 and 35.
- VHF SRC Radio Simulator — 15 scenarios: voice Mayday, DSC distress, Mayday Relay, Pan-Pan, Sécurité, routine.
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