This film is presented by the United States Navy (:10). The Naval Gun Factory is spread out over 125 acres in Washington DC by the Anacostia River (:52) and is composed of about 260 buildings. It is the largest Naval armament in the world (1:25). Old cannons are poised out front of the factory as it has been an arsenal, school for midshipmen and a naval base is it’s past (1:32). An example is depicted of a work order which will be studied by various staff departments (2:06). A bird’s eye view of one of the many supply yards is shown (2:31), and materials such as plates of all sizes to be welded (2:38), ferrous and nonferrous metals (2:45) and lumber (2:49) exist here. The pattern and joiner shop (2:55) where patterns will be made into castings are shown. These electric furnaces (3:49) had the ability to produce 100 tons of steel daily. At the brass foundry (4:03) castings are being made and in the hydro blast room (4:12) sand is to be removed. The forge of the gun factory is shown (4:36) and the 2,000-ton hydraulic press in action (4:46). Method’s such as the classic blacksmith’s anvil are still used (5:02). At the boilermaker shop (5:20) turrets, carriages, and shields are among the many items to be shaped and welded. The pantograph cuts design into a steel plate (5:53). A diagram explaining how materials move from the heavy machine shops to the light machine shops (6:07) leads to the inside of the heavy machine shop (6:24). The light machine shop is shown after (7:08) as well as the tool shop of the factory (7:43). The inspection room is also known as the accuracy control center (8:30). Considerably one of the more impressive areas is the heavy gun shop (9:08) in which nearly every gun since WW1 has been created. The shrinkage pit (9:43) which is about 100 feet deep and the process of lenses being coated with low reflection film (10:45) are depicted. At the assembly shop (10:57) the final stage is completed and tests simulating field conditions are to be conducted (11:14). The Dahlgren proving grounds (11:38) are where these final products will be put to the ultimate test (11:38). Tests such as how the components operate during the vibrations of a long-range aircraft (12:20) and all atmospheric conditions in the weather testing room are completed (12:29). A bird’s eye view of the factory brings this film to conclusion and it has been another of the ‘Sea Power for Security’ (14:22).

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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com