The 427th Reconnaissance Squadron is an active United States Air Force (USAF) unit assigned to Beale Air Force Base, California. The squadron's roots go back to World War I, when it was organized as the 38th Aero Squadron, a training unit that served in Texas and Illinois. When the United States Army Air Service reorganized its training units in July 1918, the squadron was renamed Squadron A, Chanute Field. Following the Armistice of 11 November 1918, the squadron was demobilized in December.