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.
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 of a horn on a boat typically indicate that the vessel is operating in reverse. This signal is used to communicate the boat's intentions to other vessels in the vicinity, ensuring safety and preventing collisions. It’s important for all boaters to understand these sound signals as part of navigational rules.
3 short blasts
Well, honey, three long blasts followed by two short blasts from a Great Lakes ship means they're backing up, just like your ex trying to come back into your life after they realize they messed up. So, keep your distance and let that ship do its thing before it ends up in hot water.
3
3 blasts on the horn says you are going astern
You need to transmit the Morse letter D (-..) with either a fog horn or hitting a bell every 2 minutes. Long blasts need to be 3 times as long as short blasts. The space between blasts is as long as the duration of a short blast. So the sequence goes like this: Blow the horn or hit the bell for 6 seconds, wait for 2, hit it for 2 seconds, wait for 2 seconds, and hit it again for 2 seconds.
3 short blasts
3 short blasts
3 short blasts
3 short blasts