Boeing YB-40 Flying Fortress March 1944. All of the aircraft were sent to reclamation, mostly at RFC Ontario in May 1945, being broken up and smelted. (A couple of the YB-40s can be seen in the 1946 movie "The Best Years of Our Lives", in the famous scene shot at the Ontario "graveyard".) No airframes were sold on the civil market. 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
II Bomber Command II Bomber Command The II Bomber Command is an inactive United States Army Air Forces unit. It was last assigned to Second Air Force, based at Fort George Wright, Washington. It was inactivated on 6 October 1943. During World War II, the unit trained large numbers of B-17 Flying Fortress and B-24 Liberator bombardment groups. It controlled operational training units (OTU) and replacement training units (RTU) primarily in the west and southwest of the United States until late 1943 when its operations were taken over by Headquarters, Second Air Force and the command was disbanded. It also performed antisubmarine patrols