Built mostly over 3 years from mid-1942 to mid-1945, these four engine heavy bombers once filled the skies. Workers across the US built 12,731 B-17's, 19,258 B-24's, and 3,960 B-29's. They are all but gone today, with only one B-29 still flying and three B-24's still a...
The Boeing B-17 Flying Fortress is a four-engine heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). Competing against Douglas and Martin for a contract to build 200 bombers, the Boeing entry outperformed both competitors and more than met the Air Corp...