RV — Close Quarters Unavoidable (Rule 19(e))
You hear a fog signal forward of the beam. The target is detected very close (under 2 NM) on a steady bearing.
Scenario briefing
You hear a fog signal forward of the beam. The target is detected very close (under 2 NM) on a steady bearing. Rule 19(e): when close-quarters cannot be avoided by altering course alone, REDUCE speed to the minimum at which the vessel can be kept on course ( 3 kn in this sim tap DEAD SLOW for 2 kn, or use REV in 5% steps; EMERG ASTERN is available if you must take all way off). Combine with a small course alteration if needed.
Applicable COLREG rule(s)
📸 Bridge simulator scene
Captured directly from the SkipperCheck COLREG bridge simulator at scenario T = 0 — the moment the encounter begins.
Key teaching points
- Rule 19(e): when close-quarters cannot be avoided by course alteration alone, REDUCE speed to the minimum at which the vessel can be kept on course.
- In extremis: take all way off (engine astern or full stop).
- Combine with the smallest course alteration that helps — Rule 19 prefers SPEED reduction over hard turns in close quarters.
- Sound the fog signal continuously and listen for the other vessel's signal — bearing of the sound gives you a non-radar cue.
Common mistakes to avoid
- Maintaining safe-speed but not reducing further when close-quarters geometry develops — Rule 19(e) explicitly demands more.
- Hard turn at the very last moment instead of slowing — at close range, you lose the time you need for the turn to take effect.
Why it matters
Exam relevance
Rule 19(e) close-quarters speed-reduction is a senior-level COLREG probe in Yachtmaster Offshore and STCW OOW orals.
Related scenarios
About SkipperCheck simulators
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