The B-17 was born in 1937. The Boeing company had privately designed and made the Model 299 prototype when the U.S. Air Corps needed a heavy bomber to replace the smaller, slower Martin B-10. The early B-17’s, B through D models, had no tail turret, no forward armament, and no ball turret; they had .30-caliber machine guns, which proved too light for defense against German fighters. After some combat experience with the early B through D models, the B-17E was designed with increased armament,... więcej
Salem Press Encyclopedia, 2019. 2p.