Construction of aircraft at the Glenn L. Martin plant at Baltimore, MD. Machine gun turrets are completely assembled and ched operated before installed in the carcass of PBM.

Construction of aircraft at the Glenn L. Martin plant at Baltimore, MD. Fuselages, just out of the assembly jigs are on these special stands, to be given a water test. Instead of being placed in water, the water is placed in the hulls and the inspection made from the outside.

Women workers install fixtures and assemblies to a tail fuselage section of a B-17F bomber the "Flying Fortress" at the Long Beach, California plant of Douglas Aircraft Company.

Checking finished PV-1 at the Vega aircraft plant, Burbank, Calif. Workmen spin propeller.

Inside the Douglas aircraft plant at El Segundo, Cal. Women riveters working on a wing panel of an SBD.

Production. Motor torpedo boats (wooden).

Production. B-24 bombers and C-87 transports. Structural parts of a consolidated transport plane are installed in the "tunnel" of a tail fuselage section in a Western aircraft plant. This new transport, an adaptation of the B-24 bomber, is known as C-87, and carries one of the greatest human or carg

Riveting a center wing section for a B-24E (Liberator) bomber in the horizontal position at Ford's big Willow Run plant.

A completed B-17 F heavy bomber is checked by final inspectors at the Long Beach, Calif., plant of Douglas Aircraft Company before it moves to the flight line for rigid acceptance tests.