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
American music during World War II American music during World War II American music during World War II was considered to be popular music that was enjoyed during the late 1930s (the end of the Great Depression) through the mid-1940s (through the end of World War II). By 1940, 80% of American households would own a radio; making American music easier to listen to as opposed to the World War I era. Therefore, popular songs from the World War II era were far more accessible to the civilians and soldiers alike and thus were better able to build morale than before. Unlike many World War I