What does two short whistle blasts mean?

Two short whistle blasts signify the intention to leave another vessel on your starboard side. This sound signal is part of the International and Inland Navigation Rules, designed to facilitate safe navigation and communication between vessels. When a vessel sounds two short blasts, it is indicating its maneuver, letting other boaters know how it plans to proceed in relation to them.

This communication is critical in busy waters or situations where visibility is limited, as it helps to prevent collisions and misunderstandings between vessels. Understanding these signals is an essential part of maritime safety and navigational practice.