When vessels in sight of one another are approaching each other and from any cause either vessel fails to understand the intentions or actions of the other, or is in doubt whether sufficient action is being taken by the other to avoid collision, the vessel in doubt shall immediately indicate such doubt by giving at least five short and rapid blasts on the whistle
Five short blasts from another vessel's horn typically signal danger or an uncertain maneuver. It serves as a warning to nearby vessels that the signaling vessel is unsure of the other vessel's intentions or is indicating a potential collision risk. In maritime communication, this signal emphasizes the need for caution and awareness in navigating close quarters.
One prolonged and two short blasts is 'D' in Morse signals. It is a signal to be used in restricted visibility by a vessel not under command[NUC], a vessel restricted in her ability to manoeuvre[RAM], a vessel constrained by her draught, a sailing vessel, a vessel engaged in fishing and a vessel engaged in towing or pushing another vessel.
They intend to pass starboard side to starboard side.
They are indicating a dangerous situation exists
Two short horn blasts from another vessel typically indicate that the vessel is maneuvering to overtake or pass you on your port (left) side. This is a signal used to communicate intentions between vessels to ensure safe navigation and avoid collisions. It’s important to respond appropriately by maintaining your course and speed, allowing the overtaking vessel to pass safely.
they are indicating a dangerous situation exist
They intend to pass starboard side to starboard side.
They intend to pass starboard side to starboard side.
Two short horn blasts from another vessel typically indicate that the vessel intends to overtake you on your starboard side. This is a communication signal used in maritime navigation to ensure safe passing between vessels. It’s important for both parties to understand these signals to maintain safety and avoid collisions. Always respond appropriately to such signals to ensure clear intentions are communicated.
Two short blasts from another vessel typically indicate that the vessel is intending to overtake or pass on the starboard (right) side. This is part of the navigational signals used to communicate intentions between vessels to ensure safety at sea. It's important for mariners to understand these signals to avoid collisions. Always refer to the International Regulations for Preventing Collisions at Sea (COLREGs) for detailed guidance on sound signals.
Five short blasts on a horn in boating typically signal a warning or indicate that a vessel is unsure of another vessel's intentions, often in situations of restricted visibility or when navigating in close quarters. It can also mean that a vessel is backing up or has an emergency situation. This sound signal is part of the International Regulations for Preventing Collisions at Sea (COLREGs) and is important for maintaining safety on the water.