3 short blasts
3 short blasts
3 short blasts
3 short blasts
3 short blasts
Three short blasts means that the ship's engine is working in reverse.
A vessel that is backing up typically uses a series of short blasts on its horn to alert other boats of its intention to maneuver in reverse. This sound signal consists of three short blasts, which indicate that the vessel is preparing to move backward. This is part of the International Regulations for Preventing Collisions at Sea (COLREGs) to ensure 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.
one prolonged blast
3
Keeping his/her vessel and crew out of danger
3 blasts on the horn says you are going astern
stay with the boat and signal for help.