The B-17 Flying Fortress was one of the main offensive weapons used during WWII. Here's who designed and built it, and where they were made.
Vintage Aviation News on MSN
Today in aviation history: First combat flight of the Boeing B-17 Flying Fortress
Discover the first combat mission of the Boeing B-17 Flying Fortress on July 8, 1941, as RAF Fortress Mk.1 bombers carried ...
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