serious threat to successful bombing operations and felt that the task of American pursuit was not necessarily to escort bombers, but to also seek out and attack enemy fighters. During the first five years of the school's operation, Mitchell's beliefs formed the basis for instruction at the tactical school. However, by the mid-1930s the school's emphasis had shifted from pursuit to bombardment aviation. On July 16, 1933, Congressman Lister Hill secured approval from the War Department for $1,650,075 for immediate spending at Maxwell Field. Hill's request was justified by increased enrollment at the Air Corps Tactical School and the desperate need for employment for the local Montgomery population. At the start of October 1933 bids opened for four construction projects that were to start immediately; 1933-1934 construction at Maxwell Field later employed an average of more than 500 workers. The Air Corps Tactical School opened July 15, 1931. The school evolved into the Army Air Corps (later, U.S. Air Force's) first tactical center until the imminence of American involvement in World War II forced a suspension of classes in June 1940 that resulted in permanent closure of the school. One of the school's notable achievements was its development of two aerial acrobatic teams: the "Three Men on a Flying Trapeze", put together by then-Captain Claire L. Chennault in 1932, and the Skylarks in 1935. World War II In 1940, it was announced that the installation was to be converted into a pilot-training center. On 8 July 1940 the Army Air Corps redesignated its training center at Maxwell Field, Alabama as the Southeast Air Corps Training Center. The Southeast Air Corps Training Center at Maxwell handled flying training (basic, primary and advanced) at airfields in the Eastern United States. An Air Force Pilot School (preflight) was also activated which instructed Aviation Cadets in the mechanics and physics of flight and required the cadets to pass courses in mathematics and the hard sciences. Then the cadets were taught to apply their knowledge practically by teaching them aeronautics, deflection shooting, and thinking in three dimensions. In June 1941, the Army Air Corps became the U.S. Army Air Forces. On 8 January 1943, the War Department constituted and redesignated the school as the 74th Flying Training Wing handling pre-flight training. During following years, Maxwell was home to six different schools that trained U.S. military aviators and their support teams for wartime service. As World