What sound signal indicates that you intend to pass another vessel on your port (left) side?

The sound signal that indicates your intention to pass another vessel on your port side is one short blast. This communication is essential for navigational safety and is a part of the convention established by the International Regulations for Preventing Collisions at Sea (COLREGs). When a vessel intends to pass another on the left side, signaling with one short blast clearly communicates that intention to the other vessel, allowing for coordinated movement and reducing the risk of collision.

Using these specific sound signals helps maintain awareness and understanding among boat operators, especially in situations where visibility may be limited or when operating in close quarters. Each sound has a distinct meaning, so it’s crucial for all boaters to understand and use the correct signals effectively.