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They are indicating dangerous
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 whistle blasts typically signal "danger" or a call for immediate attention in many emergency situations and drills. It is commonly used by emergency responders and lifeguards to alert people of potential hazards or imminent threats.
They are indicating a dangerous situation exists
they are indicating a dangerous situation exist
The sound signals that it is a sailing vessel underway when you hear one prolonged blast plus two short blasts every two minutes.
From the USCG Navigational Rules of the Road (International and Inland.)Rule 34Maneuvering and Warning Signals(d) When vessels in sight of one another are approaching each other and from any cause one fails to understand the intentions or actions of another, 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 5 short and rapid blasts of the ships whistle.
From the USCG Navigational Rules of the Road (International and Inland.)Rule 34Maneuvering and Warning Signals(d) When vessels in sight of one another are approaching each other and from any cause one fails to understand the intentions or actions of another, 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 5 short and rapid blasts of the ships whistle.
The sound signals that it is a sailing vessel underway when you hear one prolonged blast plus two short blasts every two minutes.
I intend to pass you on my port (left) side.It means I intend to LEAVE you on my port side. That means you will be overtaking the vessel you are approaching (which is the stand on vessel and has the right away) and leaving it on YOUR port side. Simply put you are over taking the vessel and maneuvering to your right. If you are passing from behind and the other vessel is in agreement they will sound the same sound, one short blast. To pass on the opposite side leaving them on your starboard side then you will sound two short blasts. If in agreement you will hear two short blasts in return.
Five short horn blasts from another boat on the water usually means danger. It could mean they have doubt in the message they had received from you, whether they did not hear it or did not understand. It can also be used to signal that the boat driver is confused about who has the right away. It is a signal to alert another vessel that you are unsure of its intentions, or doubt whether you are taking enough action to avoid a collision.
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