The mission of the United States Army Pathfinder School is to train personnel in the U.S. Army and its sister services in a three week course, during which the candidate pathfinder learns how to navigate dismounted, establish and operate a day / night helicopter landing zone, establish and operate day / night parachute drop zones (DZs), including computed air release system (CARP) DZs, ground marked release system (GMRS) DZs and Army verbally initiated release system (VIRS) DZs, conduct sling load operations, provide air traffic control (ATC) and navigational assistance to rotary wing (RW) and fixed wing (FW) airborne operations. All training and airborne operations will be conducted in accordance with FM 3-21.220 (Static Line Parachuting Techniques and Training) and FM 3-21.38 (Pathfinder