each vessel of the "katanpää" class is equipped with a bofors 40 mm l/70 gun for self-defence. the fire control is provided by atlas elektronik and the integrated system utilizes eots tv/ir multisensors. the system can be controlled from either one of five consoles in the combat information center or from the bridge, although only one console is equipped with the pedals required to control the gun. in addition the vessels are armed with depth charges.