What is the flash frequency for a 'Very Quick' light?

A 'Very Quick' light is defined within the IALA Maritime Buoyage System as a light that emits flashes at a rate of 100 to 120 flashes per minute. This high frequency allows it to be distinctive and easily recognizable from other light patterns.

In the context of maritime navigation, the use of different flash frequencies enables mariners to identify specific navigational aids or marks from greater distances or during low visibility conditions. These distinct light characteristics are essential for maintaining safety at sea, as they help in avoiding hazards and navigating effectively in busy waterways.

The justification for this classification rests on the need for unique signaling methods; therefore, a light that flashes 100 to 120 times per minute stands out compared to slower flashing lights. This is especially important in environments with multiple navigational signals, as it aids mariners in quickly discerning their immediate surroundings and making informed decisions.