21st Airship Group
The 21st Airship Group was a unit of the United States Army Air Corps. It was last assigned to the 3d Wing at Scott Field, Illinois. It was originally activated under a different name in 1921, and disbanded on 27 May 1939. A predecessor of the group served on the Western Front in France during World War I. For most of the period between the two World Wars, the group was the only active lighter-than-air headquarters in the United States Army Air Service and, later, the United States Army Air Corps. History The 2d Balloon Squadron, a predecessor of the group was activated during World War I and deployed to Western Front in France. The squadron was credited with participating in the Meuse-Argonne offensive (8–17 October 1918). The unit was demobilized as the I Corps Balloon Group in December 1918. The 1st Balloon Group was organized in the fall of 1921 to support the Air Service Balloon and Airship School at Brooks Field, San Antonio, Texas. However, a series of mishaps in operating the hydrogen-filled craft led to the transfer of the school from Brooks to Scott Field, Illinois, on 26 June 1922. Lighter-than-air ships were used at Scott Field to research the capabilities of aerial photography, meteorology and conduct altitude experiments. In the late 1920s, the emphasis shifted from airships to balloons. Airplanes began to dominate activities at Scott Field, and in the late 1930s, the lighter-than-air activities there came to an end. Lineage I Corps Balloon Group Organized as the 2d Balloon Squadron on 25 September 1917 Redesignated Company A, Balloon Wing, First Army on 19 June 1918 Redesignated I Corps Balloon Group on 8 October 1918 Demobilized in December 1918. Reconstituted on 20 November 1936 and consolidated with the 21st Airship Group as the 21st Airship Group 21st Balloon Group Constituted in the Regular Army as the 1st Balloon Group on 13 September 1921 Redesignated 1st Airship Group on 3 January 1922. Redesignated 21st Airship Group on 1 January 1923 Consolidated on 20 November 1936 with the I Corps Balloon Group Redesignated as 21st Balloon Group on 1 June 1937. Disbanded on 27 May 1939 Assignments Undetermined, 15 September 1917 1st Air Depot, AEF, 3 January 1918 Balloon Wing, First Army, 19 June 1918 I Corps, 8 October-8 December 1918 Zone of the Interior, 13 September 1921 Air Service Balloon and Airship School (later Air Corps Balloon and Airship School). 3 January 1922 General Headquarters Reserve, 8 May 1929 General Headquarters Air Force, 1 October 1933 Sixth Corps Area, 12 August 1936 3d Wing, 19 February – 1 June 1939 Components 8th Airship Company 1921–1933 9th Airship Company 1921–1933 9th Airship Squadron 1933–1937 12th Airship Company 1921–1933 16th Airship Company 1921–1933 19th Airship Squadron 1933–1937 1st Balloon Company, 1918 2d Balloon Company, 1918 3d Balloon Company, 1918 1st Balloon Squadron 1937–1939 2d Balloon Squadron 1937–1939 3d Balloon Squadron 1937–1939 24th Airship Service Company 1921–1933 24th Airship Service Squadron 1933–1937 24th Service Squadron 1937–1939 21st Photo Section 1922-1937