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
33d Flying Training Wing (World War II) 33d Flying Training Wing (World War II) The 33d Flying Training Wing is an inactive United States Air Force unit. It was last assigned to the Central Flying Training Command, and was disbanded on 13 October 1946 at Randolph Field, Texas. There is no lineage between the United States Air Force 33d Fighter Wing, established on 15 October 1947 at Roswell Army Airfield, New Mexico, and this organization. The wing was a World War II Command and Control organization which supported Training Command Flight Schools in Central and Northern Texas and Oklaholma. The assigned schools provided phase III advanced two-engine