Rules of the Road · Lookout & Safe Speed
Which factor is NOT listed in Rule 6 as relevant to determining a safe speed?
- AThe state of visibility
- BThe maneuverability of the vessel with special reference to stopping distance
- CThe number of persons on board✓ Correct
- DThe background light at night from shore lights or from backscatter of own lights
Explanation
Rule 6 lists specific factors for safe speed: visibility, traffic density, maneuverability (stopping distance, turning ability), background light, sea state, draft versus available depth, radar range/resolution, and whether radar is in use. The number of persons on board is not among the enumerated factors.
Authority: 72 COLREGS Rule 6
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