Rules of the Road · Maneuvering & Warning Signals
You are the give-way vessel and intend to pass a vessel on her starboard side in a narrow channel. Under Rule 34(c), what signal must you sound to propose this maneuver?
- AOne short blast
- BTwo prolonged blasts followed by one short blast✓ Correct
- COne prolonged blast followed by one short blast
- DThree short blasts
Explanation
Rule 34(c)(i) covers overtaking in a narrow channel where the overtaking vessel cannot pass without the other vessel taking action. To pass on the other vessel's starboard side, the overtaking vessel sounds two prolonged blasts followed by one short blast. One prolonged + two short = pass on the port side. Mutual agreement is confirmed by one prolonged, one short, one prolonged, one short from the vessel being overtaken.
Authority: 72 COLREGS Rule 34(c)(i)
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