What do two short horn blasts from another vessel mean in a meeting situation?

In a meeting situation between two vessels, two short horn blasts indicate that one vessel intends to pass the other starboard side to starboard side. This communication is a part of sound signaling rules that help ensure safe navigation and prevent collisions. The signaling is crucial in determining the course of two vessels that may be approaching each other from different directions.

When two vessels navigate in close proximity, understanding these sound signals allows each vessel to anticipate the other's maneuvers. The signaling between vessels is part of the established maritime conventions laid out in the International Regulations for Preventing Collisions at Sea (COLREGs), which emphasize mutual respect and clear communication on the water.