1 short blast to pass on YOUR port side.
I intend to pass you on my starboard (right) side.
To indicate your disagreement and that you intend to pass the motorboat on your port side, you should sound one short blast on your horn. This signal communicates your intention to pass on the left. The motorboat's two short blasts indicate they are also signaling to pass on their port side, so your single blast clarifies your intended course of action.
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.
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 blasts
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
To signal that you wish to pass another boat on your starboard side, you should sound one short blast of your horn. Conversely, if you intend to pass on your port side, you should sound two short blasts. These sound signals help communicate your intentions clearly to other boaters and ensure safe navigation.
on short blast