What is the required manual sound signaling method on a vessel?

The required manual sound signaling method on a vessel is that sound signals must always be possible. This requirement is based on the need for vessels to communicate effectively with one another, especially in conditions such as fog or poor visibility where visual signals may be inadequate. It ensures that the crew is able to convey their position, intentions, and maneuvers to other vessels in a standardized manner.

Having the ability to produce sound signals ensures compliance with navigation rules and enhances safety on the water. This means that a functional sound-signaling device, such as a horn or whistle, must be readily available on board, and the crew should be trained in its use. This capability to signal manually is essential regardless of the presence of electronic devices, which may not always be operational or available in every maritime situation. Therefore, the regulation emphasizes the preparedness and readiness of the vessel to communicate through sound at all times.