Which signal indicates that a vessel intends to proceed in reverse?

The signal for a vessel intending to proceed in reverse is represented by three short blasts. This specific sound signal is part of the navigational rules outlined in the COLREGs (International Regulations for Preventing Collisions at Sea). Distinct sound signals are used by vessels to communicate their intentions to others and enhance safety while navigating.

When a vessel sounds three short blasts, it clearly indicates to nearby vessels that it is making way backwards. This is critical information for other mariners, as reverse movement can present certain hazards, especially in congested waterways. Knowing that a vessel is reversing allows others to take appropriate action to avoid collision or maneuver safely around the vessel.

Understanding these signals is vital for safe navigation, as different sequences of blasts have specific meanings, helping to prevent misunderstandings that could lead to accidents at sea.