Boeing YB-40 Flying Fortress Boeing YB-40 Flying Fortress The Boeing YB-40 Flying Fortress was a modification for operational testing purposes of the B-17 Flying Fortress bomber aircraft, converted to act as a heavily armed gunship for other bombers during World War II. At the time of its development, long-range fighter aircraft such as the North American P-51 Mustang were just entering quantity production, and thus were not yet available to accompany bombers all the way from England to Germany and back. Work on the prototype, Project V-139, began in September 1942 by converting the second production B-17F-1-BO (serial number 41-24341) built. Conversion work was
32d Flying Training Wing (World War II) from the Basic phase of flight training with the North American AT-6 Texan 32d Flying Training Wing (World War II) The 32d 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 the Randolph Field, Texas. There is no lineage between the United States Air Force 32d Composite Wing, established on 22 November 1940 as the 32d Pursuit Group (Fighter) at Rio Hato Army Airbase, Panama, and this organization. The wing was a World War II Command and Control organization which