North Auxiliary Airfield

North Auxiliary Airfield, identified by ICAO code KXNO and FAA LID XNO, is a military airfield located approximately 3 miles east of North, South Carolina. It is part of Joint Base Charleston and is owned and operated by the U.S. Air Force, controlled by Air Mobility Command. The airfield spans 970 hectares (2,400 acres) and remains operational.

Construction of North Army Airfield began in 1942, with the original dirt runway completed in April 1943. During World War II, it served as a satellite airfield for Columbia Army Air Base, supporting B-25 Mitchell medium bomber training for the Third Air Force's III Air Support Command. After the war, a 3,048.9-meter (10,000-foot) main runway and a 1,066.8-meter (3,500-foot) assault runway were constructed. The airfield has been under the jurisdiction of Fort Jackson, the 363rd Tactical Reconnaissance Wing at Shaw AFB, and the United States Department of Energy. On October 1, 1979, the 437th Airlift Wing at Charleston AFB assumed control.

Currently, North Auxiliary Airfield is primarily utilized for C-17 Globemaster III training by the 437th Airlift Wing and its Air Force Reserve associate unit, the 315th Airlift Wing, both based at Joint Base Charleston. The 628th Civil Engineer Squadron maintains and operates the airfield. Facilities include two runways: runway 06/24, which is 3,048.9 meters (10,003 feet) long with an asphalt surface, and runway 051/231, which is 1,066.8 meters (3,500 feet) long with a concrete surface. The airfield's elevation is 98 meters (321 feet) above mean sea level. The construction of an air traffic control tower and a permanent aircraft rescue and firefighting station established it as a controlled airport.