COLREG / ARPA / AIS Bridge
Rule 10(b)(ii)
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TSS — Joining at a Shallow Angle (Rule 10(b)(ii))
You are joining the northbound TSS lane (right lane). Rule 10(b)(ii): a vessel joining a lane shall do so at as SMALL AN ANGLE to the general direction...
This scenario is part of the full library.
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Scenario briefing
You are joining the northbound TSS lane (right lane). Rule 10(b)(ii): a vessel joining a lane shall do so at as SMALL AN ANGLE to the general direction of traffic flow as practicable. Enter the lane on a heading between 000° and 020° (shallow angle), then click EVALUATE.
Applicable COLREG rule(s)
Rule 10(b)(ii) — 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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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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