Boeing XB-38 Flying Fortress Boeing XB-38 Flying Fortress The XB-38 Flying Fortress was a single example conversion of a production B-17E Flying Fortress, testing whether the Allison V-1710 V type engine could be substituted for the standard Wright R-1820 radial engine during early World War II. The XB-38 was the result of a modification project undertaken by Boeing and Vega (a subsidiary of Lockheed) on a B-17 Flying Fortress to fit it with liquid-cooled Allison V-1710-89 Vee engine. It was meant as an improved version of the B-17, and a variant that could be used if air-cooled Wright R-1820 radial engines became scarce. Completing
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