1 short blast to pass on YOUR port side.
I intend to pass you on my starboard (right) side.
That you are crossing starboard to starboard or overtaking to port side. (you are passing on YOUR starboard side)
They intend to pass starboard side to starboard side.
I intend to pass you on the starboard(right) side
I intend to pass you on my port (left) side.It means I intend to LEAVE you on my port side. That means you will be overtaking the vessel you are approaching (which is the stand on vessel and has the right away) and leaving it on YOUR port side. Simply put you are over taking the vessel and maneuvering to your right. If you are passing from behind and the other vessel is in agreement they will sound the same sound, one short blast. To pass on the opposite side leaving them on your starboard side then you will sound two short blasts. If in agreement you will hear two short blasts in return.
two short blasts
When approaching another vessel head-on, you should steer to the starboard side (right side) to avoid a collision. According to the International Regulations for Preventing Collisions at Sea (COLREGs), you should sound one short horn blast to indicate your intention to pass port to port.
Two short horn blasts from another vessel typically indicate that the vessel is maneuvering to overtake or pass you on your port (left) side. This is a signal used to communicate intentions between vessels to ensure safe navigation and avoid collisions. It’s important to respond appropriately by maintaining your course and speed, allowing the overtaking vessel to pass safely.
ten pronlongest blasts
on short blast
The horn signal indicating "I am altering my course to port" is a series of two short blasts. This is a standard signal used in maritime communication to inform other vessels of a change in course to the left (port side). It's important for maintaining safety and preventing collisions in busy waterways.
They pass Port To Port side