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9/4/2017 · To find images by topic or subject, see CategoryTopics and CategoryCategories. This category should only contain other categories. Galleries should be in the corresponding categories instead. Files should be in a parent or subcategory. ... Images by language (17 C, 2 F)The Boeing B17 Flying Fortress is a fourengined heavy bomber 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 (prototype Model 299/XB17) outperformed both competitors and exceeded the air corps performance specifications. Although Boeing lost the contract (to the Douglas B18 Bolo ...
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