Damage control
Principally known as "Fast Gun" by its members due to few restrictions on rate of fire, this format is sometimes also identified as "Small Gun" because of its exclusive use of .177" (BB) caliber guns. About 80% of active clubs are of the fast gun variety, in which all ships are built in 1/144 scale and use .177" caliber guns, which in most cases are installed in fixed mounts but may rotate depending upon ship class. Additionally, all ships are fitted with a standardized 1/32" thick balsa wood 'Armor' to yield an easily penetrable hull. Damage control is accomplished through the use of centrifugal bilge pumps fitted with either a 1/8" or 1/16" diameter flow restrictor. Clubs that follow this format include the International Radio-Controlled Warship Combat Club (IRCWCC) and Model Warship Combat, Incorporated (MWCI).