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
World War II and American animation the word of this new strategic plan involving tactical long-range bombing. Winston Churchill viewed the film and convinced Franklin D. Roosevelt to see it. After Roosevelt watched the film, the United States began committing to long-range bomber airplanes and strategies. World War II and American animation World War II changed the possibilities for animation. Prior to the war, animation was seen as a form of childish entertainment. The attack on Pearl Harbor was a turning point in its utility. On December 8, 1941, the U.S. Army began working with Walt Disney at his studio, stationing Military personnel there for the