When two vessels are moving in the same direction, and the astern vessel wishes to pass, it must initiate the signal to pass as shown in the diagram. The vessel passing is the give-way vessel and should keep out of the way of the vessel being passed. The vessel being passed is the stand-on vessel and must maintain its course and speed. If the stand-on vessel realizes that the course intended by the give-way vessel is not safe, it should sound the danger or doubt signal.
A vessel is deemed to be overtaking when the vessel is approaching the vessel ahead in a direction of 22.5 degrees abaft her beam. At night you would only be able to see the stern light of the vessel being overtaken. You would not be able to see either sidelight.
|Inland Rules”I intend to pass you on your port side”
2 short blasts (1 sec.)”Agreement”
2 short blasts (1 sec.)International Rules:”I intend to pass you on your port side”
2 prolonged blasts/2 short
|Inland Rules”I intend to pass you on your starboard side”
1 short blast (1 sec.)”Agreement”
1 short blast (1 sec.)International Rules:”I intend to pass you on your starboard side”
2 prolonged blasts/1 short
If you are the overtaking vessel, remember that you are the give-way vessel until well past, and safely clear of, the passed vessel. Do not cut in front, impede or endanger another vessel.