Boeing XB-38 Flying Fortress The XB-38 was destroyed and the project was canceled, in part because the V-1710 engines were needed for other projects such as the Lockheed P-38 Lightning, Bell P-39 Airacobra, Curtiss P-40 Warhawk, North American P-51A Mustang, and Bell P-63 Kingcobra fighters. Boeing XB-38 Flying Fortress The XB-38 Flying Fortress was a single example conversion of a production B-17E Flying Fortress, testing whether the Allison V-1710 V type engine could be substituted for the standard Wright R-1820 radial engine during early World War II. The XB-38 was the result of a modification project undertaken by Boeing and Vega (a subsidiary of
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