b 17
History: The B-17, arguably World War II's most famous heavy bomber, first flew on July 28, 1935, before a crowd of reporters eager to see Boeing's new bomber take wing. It was dubbed the "Flying Fortress" by the members of the press in attendance because of its (at least for the time) heavy defensive armament. The prototype crashed in October, but because of its impressive speed and handling the US Army Air Corps (USAAC) decided to continue testing anyway. They ordered 13 YB-17s for further evaluation, a decision that would prove momentous in years to come. The YB-17 had five machine guns, room for 4800 pounds of bombs and a crew of nine. It had electrically retractable landing gear. After testing the YB-17, an improved prototype, the Y1B-17, was built with Wright Cyclone radial engines. Twelve were delivered to the USAAC's 2nd Bombardment Group for trials. One of these was soon equipped with new Moss/General Electric turbochargers that became standard on all future Flying Fortresses. The first production order was for 39 B-17Bs with turbo-charged engines, and as soon as these were under production another order for the B-17C was placed, with seven machine guns instead of the original five. The RAF received their first B-17Cs in 1941, and were soon conducting daylight raids over Germany. The defensive armament soon proved inadequate, and the B-17's altitude was little defense against the German fighters. Orders for the B-17D were soon placed with self-sealing fuel tanks ...
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