Production. B-17 heavy bomber. A skilled team of men and women workers at the Boeing plant in Seattle complete assembly and fitting operations on the interior of a fuselage section for a new B-17F (Flying Fortress) bomber. About half of the workers at the Boeing plant are women. The Flying Fortress has performed with great credit in the South Pacific, over Germany and elsewhere. It is a four-engine heavy bomber capable of flying high altitudes. Sourced from the Library of Congress.