YB-17 Bomber Color Pictures
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| Color photograph of a YB-17 Bomber (prototype of the B-17 Flying Fortress) of the 2nd Bombardment Group at Langley Field, Virginia in May 1942. (Library of Congress) |
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| Close-up of the Boeing YB-17 Bomber with Wright R-1820-39 Cyclone engines running. Note early version of nose gun turret. (Library of Congress) |