Waist gun position of the Boeing 299. (U.S. Air force)
Boeing XB-17 (Model 299) streamline gun turret (exterior waist gunner). (U.S. Air Force photo)
Boeing XB-17
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Waist gun position of the Boeing 299. (U.S. Air force)
Boeing XB-17 (Model 299) streamline gun turret (exterior waist gunner). (U.S. Air Force photo)