Fallskärmsjägarskolan, commonly known as FJS, is the Swedish Army's Parachute Ranger School and the home of Fallskärmsjägarna (Parachute Rangers) and Särskilda operationsgruppen (Special Operations Group). The school was founded in 1952 by Captain Nils-Ivar Carlborg with the intention of creating and training small specialized units no bigger than platoons which were capable of operating deep behind enemy lines and inside enemy controlled territory. Training is provided for both normal and automatic jumps using the C-130 Hercules aircraft, as well as nighttime jumps, free fall jumps, HALO and HAHO.