ESFR sprinkler heads output rate - 100 gallons per minute. Droplet size - ESFR sprinkler heads release larger droplets of water with greater momentum than conventional heads. This combination of size and momentum allows the sprinkler droplet to penetrate a fire plume and reach the seat of a fire.
Definition of fleet for Students. 1  1 : a group of warships under one commander. 2  2 : a country's navy. 3  3 : a group of ships or vehicles that move together or are owned by one company a fishing fleet a fleet of taxis.
The United States Navy currently has six active numbered fleets. 1  These six numbered fleets are grouped into operating forces: ( 2 3rd) U.S. Pacific Fleet's 3rd Fleet. ( 3 4th) Naval Forces Southern Command's 4th Fleet. ( 4 5th) Naval Forces Central Command's 5th Fleet. ( 5 6th) Naval Forces Europe's 6th Fleet. ( 6 7th) 7th Fleet.