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) 37th Flying Training Wing (World War II) The 37th Flying Training Wing is an inactive United States Army Air Forces unit. It was last assigned to the Western Flying Training Command, and was disbanded on 16 June 1946 at Luke Field, Arizona. There is no lineage between the United States Air Force 37th Training Wing, established on 22 December 1939 as the 37th Pursuit Group (Interceptor) at Albrook Army Airfield, Panama Canal Zone, and this organization. The wing directed Training Command Flight Schools in Arizona. Most the assigned schools provided phase II basic and phase II advanced flying training for