Runaway ship
blind bend
One prolonged blast emitted by boat A typically signals its presence and intention to maneuver, often indicating that it is leaving a dock or making a turn. This sound is part of the International Regulations for Preventing Collisions at Sea (COLREGs) and helps communicate the boat's actions to other vessels in the vicinity. The prolonged blast is intended to alert nearby boats and ensure safe navigation.
One long blast of sound announces a boat's presence to other boats.
Vessel operators can alert the lock attendant of their request to transit through the lock by sounding one prolonged blast followed by one short blast
one prolonged blast
Three short blasts means you are operating in reverse. One prolonged blast followed by 3 short blasts means boat under tow in redcued visibility conditions.
One prolonged blast followed by two short blasts every two minutes is a sound signal used by vessels in fog or low visibility conditions. This signal indicates that the boat is under way and making way through the water. It serves to alert other vessels in the area of its presence and movement to help prevent collisions.
One prolonged blast emitted by boat A using a horn typically signals its presence and intent to maneuver in restricted visibility conditions. This sound signal warns other vessels of the boat's location and helps prevent collisions. It is a standard communication method outlined in the International Regulations for Preventing Collisions at Sea (COLREGs). The prolonged blast is often used to indicate that the vessel is underway and may be approaching a bend or other hazard.
One prolonged horn blast from a boat signals a warning or indicates that the vessel is altering its course to starboard (right). This sound is part of the International Regulations for Preventing Collisions at Sea (COLREGs) and helps communicate a boat's intentions to other vessels in the vicinity. It is important for maintaining safety and avoiding collisions on the water.
The Vessel is turning to Starboard .
One prolonged blast followed by one short blast typically signals to the River lock attendant that a vessel is requesting to enter the lock. The prolonged blast indicates the vessel's intention, while the short blast serves as a confirmation or follow-up to the request. This signaling protocol helps ensure safe and efficient navigation through the lock system.