three short blast
Passing on your starboard (right) side.
A boat is astern propulsion and is in the act of backing up
When two boats approach each other, they use horn blasts to signal the other about their intentions when it comes to moving to avoid collision. 5 short blasts indicates that the signaling boat is unsure about what the other boat is doing.
Three short blasts tell other boaters, “I am operating astern propulsion.” For some vessels, this tells other boaters, “I am backing up.”
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 long honk on the horn
3 blasts on the horn says you are going astern
3
Five short blasts from a boat's horn typically signal danger or uncertainty about the intentions of another vessel. It is used to communicate that the vessel is unsure of the other boat's actions, often in crowded or congested waterways. This sound is part of the International Regulations for Preventing Collisions at Sea (COLREGs), which aim to enhance safety on the water.
When backing up a boat, it's recommended to sound two short blasts of the horn to signal your intention to reverse. This communicates to others in the vicinity that you are maneuvering backward. Always ensure that you're aware of your surroundings and any other vessels in the area while backing up.
Eight short blasts of a boat horn typically indicate that a vessel is operating in a state of danger or distress, signaling to other boats that it requires assistance. This sound pattern is part of the International Regulations for Preventing Collisions at Sea (COLREGs) and serves as a warning to nearby vessels. It is important for mariners to recognize this signal and respond appropriately to ensure safety on the water.