What is the manoeuvring signal for 'I am altering my course to port'?

The correct manoeuvring signal for "I am altering my course to port" is represented by two short blasts. In the International Regulations for Preventing Collisions at Sea (COLREGs), sound signals are crucial for communication between vessels, particularly when visibility is limited.

The reason two short blasts indicate a vessel altering its course to port is rooted in the standardized communication protocols established to prevent misunderstandings on the water. By using two short blasts, the vessel is clearly signaling its intent to other vessels nearby, ensuring that they understand the change in maneuver and can respond appropriately.

It's important to remember that each type of sound signal has a specific meaning defined by the COLREGs. One short blast signifies "I am altering my course to starboard," while three short blasts indicates the vessel is engines going astern. Therefore, recognizing sound signals is vital for safe navigation and compliance with maritime regulations.