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
34th Flying Training Wing (World War II) 34th Flying Training Wing (World War II) The 34th Flying Training Wing was a wing of the United States Army Air Forces. It was last assigned to the Central Flying Training Command, and was disbanded on 16 June 1946 at Midland Army Airfield, Texas. There is no lineage between the United States Air Force 34th Training Wing, established on 20 November 1940 as the 34th Bombardment Group (Heavy) at Langley Field, Virginia, and this organization. The wing supervised Training Command Flight Schools in Central and Northern Texas and Oklahoma. The assigned schools provided specialized training for bombardiers, and the wing