To indicate that you want to pass another vessel on your starboard side, you should sound one short blast on your horn or whistle. This sound signal communicates your intention to the other vessel, allowing them to understand your maneuver and adjust their course if necessary. It's essential to follow this convention for safe navigation and to avoid potential collisions.
one short blast
one short blast
one short blast
Two short blasts
Two short blasts
Two short blasts
loud
A common signal sound to pass another boater is one prolonged blast followed by two short blasts on a horn or whistle. This signal indicates that you intend to pass on the other boat's starboard side. Make sure to maintain a safe distance and communicate your intentions clearly to avoid collisions.
If you are passing " from astern" of a vessel this is called an "Overtaking" situation.InternationalSound and Light signalsRule 34Maneuvering and warning signals.(c) When in sight of one another in a narrow channel or fairway:(i) a vessel intending to overtake another shall in compliance with Rule 9 (e)(i) shall indicate her intention by the following signals on her whistle:-Two prolonged blasts followed by one short blast to mean " I intend to overtake you on your starboard side";-Two prolonged blasts followed by two short blaststo mean "I intend to overtake you on your port side".(ii) the vessel about to be overtaken when acting in accordance with Rule 9 (e) (i) shall indicate her agreement by the following signal on her whistle:-One prolonged, one short, one prolonged and one short.***Inland(c) When in sight of one another:(i) a power driven vessel intending to overtake another power driven vessel shall indicate her intention by the following signals on her whistle: One short blast to mean "I intend to overtake you on your starboard side"; two short blaststo mean "I intend to to over take you on your port side"; and(ii) the power driven vessel about to be overtaken shall, if in agreement, sound a similar sound signal.*** If there is ANY doubt as to the intentions the danger signal of 5 or more short blasts must be sounded.
its easy sound signal
3 short blasts
None. A vessel underway under normal conditions does not need to make any sound signal.If the vessel ceases to make way it still does not make a sound signal unless special circumstances apply.