Boeing B-17 Flying Fortress NAN10-50.jpg|thumb|B-17 modified for testing of the [[Pratt & Whitney T34|XT-34 turboprop]]. When testing concluded, the aircraft was restored to stock configuration as the "[[Liberty Belle (B-17)|Liberty Belle]]", but was lost in a post-forced-landing fire near [[Oswego, Illinois]] on 13 June 2011.]] [[Category:Boeing aircraft|B-17 Flying Fortress]] [[Category:United States bomber aircraft 1930–1939]] [[Category:Four-engined tractor aircraft]] [[Category:Low-wing aircraft]] [[Category:World War II bombers of the United States]] [[Category:Boeing B-17 Flying Fortress| ]] [[Category:Aircraft first flown in 1935]] Boeing B-17 Flying Fortress The Boeing B-17 Flying Fortress is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Competing
37th Flying Training Wing (World War II) Air Cadets, although the wing also commanded both contract basic (phase I) and Army schools. Graduates of the advanced schools were commissioned as Second Lieutenants, received their "wings" and were reassigned to Operational or Replacement Training Units operated by one of the four numbered air fores in the zone of interior. As training requirements changed during the war, schools were activated and inactivated or transferred to meet those requirements. The schools of the wing used a wide variety of planes to support its numerous training needs: 37th Flying Training Wing (World War II) The 37th Flying Training Wing is an