What is the fog signal for a pilot vessel?

The fog signal for a pilot vessel is recognized as four short blasts of the vessel's horn. This specific signal is part of maritime regulations designed to enhance safety by communicating the presence of a pilot vessel in low visibility conditions such as fog.

The reason for using four short blasts is to ensure that other vessels can easily distinguish the pilot vessel from others that might be signaling with different patterns. This clarity is crucial in preventing collisions and promoting safe navigation. Each sound signal has a specific meaning, and in this case, the four short blasts distinctly indicate the presence of a pilot vessel, which is important for vessels operating in areas where pilots are required.

Other signaling patterns, such as one long blast, two short blasts, or three short blasts, are reserved for different types of vessels or situations and do not convey the same meaning as the fog signal for a pilot vessel. Understanding these distinctions in sound signals is essential for safe operation on the water and compliance with maritime regulations.