A boat is astern propulsion and is in the act of backing up
I intend to pass you on the starboard(right) side
it is the same right
you are altering your course to starboard
three short blast
dangerous
I intend to pass you on my starboard (right) side.
They are indicating dangerous
Means it's about to turn to port.
Passing on your starboard (right) side.
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.
1 short blast to pass on YOUR port side.