Boeing B-17 Flying Fortress foreign aircraft landing on Swiss territory and 56 aircraft crashing there. In October 1943 the Swiss interned Boeing B-17F-25-VE, tail number 25841, and its U.S. flight crew after the Flying Fortress developed engine trouble after a raid over Germany and was forced to land. The aircraft was turned over to the Swiss Air Force, who then flew the bomber until the end of the war, using other interned but non-airworthy B-17s for spare parts. The bomber was repainted a dark olive drab, but retained its light gray-painted under surfaces. It carried Swiss national white cross insignia in red squares on
76th Flying Training Wing (World War II) from single and two-engine aircraft to the B-17 or B-24 Liberator heavy bombers. Also after 1944, most pilots were learning on B-17/B-24s for eventual transition to B-29 Superfortress training under Second Air Force. As training requirements changed during the war, schools were activated and inactivated or transferred to meet those requirements. The schools of the wing flew primarily B-17D/E/F Flying Fortresses. Some B-17Gs were flown after June 1944 when Second Air Force B-17 training ended. Some B-24D Liberators were also used 76th Flying Training Wing (World War II) The 76th Flying Training Wing was a wing of the United States