What does one short blast indicate to other boaters?

A single short blast is a standard signaling method in boating communication. It specifically indicates the intention to pass another vessel on the starboard (right) side. This sound signal is a part of the International Regulations for Preventing Collisions at Sea (COLREGs), which set forth guidelines that promote safety and clear communication between vessels on the water.

By using one short blast, the operator is informing other boaters of their intended maneuver, ensuring that everyone is aware of their movements and can respond accordingly. This helps to prevent accidents and misunderstandings on the water, which is crucial for maintaining safety.

The other options do not correctly denote the meaning of a single short blast. For instance, signaling an intention to pass on the port side would require a different signal, typically involving two short blasts. Understanding this signaling system is vital for safe navigation and for avoiding collisions with other vessels.