INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and you intend to pass along the vessel's port side. How should you signal your intention?
Official USCG Answer & Rule Citation
Correct Answer: Option A — Two prolonged followed by two short blasts
COLREG Rule 34(c)(i) specifies that in a narrow channel or fairway, an overtaking vessel intending to pass on the other vessel's port side shall indicate this intention by sounding two prolonged blasts followed by two short blasts.
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