Boeing B-17 Flying Fortress NAN10-50.jpg|thumb|B-17 modified for testing of the [[Pratt & Whitney T34|XT-34 turboprop]]. When testing concluded, the aircraft was restored to stock configuration as the "[[Liberty Belle (B-17)|Liberty Belle]]", but was lost in a post-forced-landing fire near [[Oswego, Illinois]] on 13 June 2011.]] [[Category:Boeing aircraft|B-17 Flying Fortress]] [[Category:United States bomber aircraft 1930–1939]] [[Category:Four-engined tractor aircraft]] [[Category:Low-wing aircraft]] [[Category:World War II bombers of the United States]] [[Category:Boeing B-17 Flying Fortress| ]] [[Category:Aircraft first flown in 1935]] Boeing B-17 Flying Fortress The Boeing B-17 Flying Fortress is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Competing
RAF Bomber Command aircrew of World War II although 9,838 became prisoners of war. During World War II 156 aircrew taken prisoner of war successfully escaped from German prisoner of war camps in Western Europe and 1,975 airmen evaded capture being hidden by local resistance groups after being shot down in Western Europe. It is reported that more than half of the escapers and evaders were RAF Bomber Command airmen. A recent specialized study of airmen "evaders" shot down over Western Europe states that a post-war summary prepared by British Military Intelligence (MI9) recorded that 695 officers and 1,270 enlisted men had evaded capture; however, the study identified