COLREG / ARPA / AIS Bridge
Rule 23(b)
Rule 23(c)
🔒 Course / Premium
Rule 23(c) — WIG Craft (Wing-in-Ground)
NIGHT. A sleek low-flying craft with stubby wings skims just above the surface.
This scenario is part of the full library.
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Scenario briefing
NIGHT. A sleek low-flying craft with stubby wings skims just above the surface. She shows normal PDV lights (masthead + sidelights + sternlight) AND an additional all-round high-intensity FLASHING RED light. Which vessel type is this?
Applicable COLREG rule(s)
Rule 23(b) — referenced in this scenario. Practising this scenario reinforces correct application under realistic time pressure.
Rule 23(c) — 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.
Both run in any modern browser, on desktop or mobile. No install, no plugins.