Randolph Air Force Base (IATA: RND, ICAO: KRND, FAA LID: RND) is a United States Air Force base located at Universal City, Texas (14.8 miles (23.8 km) east-northeast of Downtown San Antonio). The base is under the jurisdiction of the 902d Mission Support Group, Air Education and Training Command (AETC) and is the headquarters of AETC's Nineteenth Air Force.
The idea for Randolph began soon after passage in the United States Congress of the Air Corps Act of 1926, which changed the name of theArmy Air Service to the Army Air Corps, created two new brigadier general positions and provided a five-year expansion program for the under-strength Air Corps. One of the new general officer positions was given to Frank P. Lahm, who was placed in charge of all flying training. General Lahm established the Air Corps Training Center in August 1926 and set up its headquarters at Duncan Field, next to Kelly Field, Texas. He soon learned that the facilities at Kelly and Brooks Fields were not sufficient for proper training. The buildings, erected during World War I with a life expectancy of five years, had no suitable areas for ground training, and the living quarters were inadequate. San Antonio's rapid growth was also beginning to interfere with flying training operations. Maj. Gen. Mason Patrick, Chief of the Air Corps, visited San Antonio in December and recommended that an additional training field be built, and in April 1927 a board of officers appointed by Gen. Lahm approved an unusual circular layout.