COLREG / ARPA / AIS Bridge
Rule 17(a)(i)
Rule 8
🔒 Course / Premium
Crossing — You Are Stand-On (Rule 17(a)(i))
A power-driven vessel is on your PORT side, crossing right to left. You are the stand-on vessel. Rule 17(a)(i): keep your course and speed.
This scenario is part of the full library.
Unlock all 54 COLREG scenarios with the Skipper Refresher Course (€99.99, lifetime + certificate) or a Premium subscription (from €29.99/mo).
Buy Skipper Refresher — €99.99
Or get Premium — from €29.99/mo
Scenario briefing
A power-driven vessel is on your PORT side, crossing right to left. You are the stand-on vessel. Rule 17(a)(i): keep your course and speed. The other vessel is expected to give way. Monitor her action if she alters properly, you remain stand-on (no change). Click EVALUATE when clear.
Applicable COLREG rule(s)
Rule 17(a)(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.
Both run in any modern browser, on desktop or mobile. No install, no plugins.