From a U.S. Navy training film in the United States on the working of airships. Operations of airships. A crew goes aboard and members take their stations. They check parts of the airship. A radioman checks electronic gear. A navigator prepares for a mission. An elevator man also checks his controls. A command pilot sits between a rudder man and the elevator man. Auto pilot is installed to take care of normal cruising conditions. The ship is undocked and brought into position for a take off. Men watch the airship. 'US Navy' written on the ship. Diagram depicts the functions of different parts of airship. The airship takes off.
From a U.S. Navy training film "Special Conditions of Flight" on the working of airships. Special conditions of flight are explained. An airship in flight. High winds and snow create problems for flight. It also creates problems for ground handling of the airship. The airship lands. Ground crew rushes towards it. 'US Navy' written on the airship. Men at work. Special masts are erected on the ground to handle airships during bad flight conditions. A crew inside the airship. The airship in flight. An instrument panel. A rudder man at the controls of the airship. Guided by careful weather forecast, the airship's operations are conducted.
United States naval proving grounds in Dahlgren, Virginia. Flak burst as anti aircraft guns are fired. Explosions occur in water. A building at the proving grounds in Dahlgren, Virginia. Men inside the building make preparations to fire a 5 inch projectile in a pit having a diameter of 25 feet. A man places a projectile in a box and after the detonation wires are checked the pit is filled with sawdust. Sawdust is dampened with water. Saw dust being detonated. Saw dust pass through various machines as fragments are recovered. A magnetic roller being used to recover fragments. Fragments being weighed and sorted. Men work on machines as they sort out fragments. Fragments being arranged and photographs taken to keep a record.
United States naval proving grounds in Dahlgren, Virginia. A ship with snow on its deck underway at sea. A man works on controls at the naval proving grounds in Dahlgren, Virginia as he tries to maintain temperature and altitude. Men in the cool chamber as they work on a machine gun.
United States naval proving grounds in Dahlgren, Virginia. Photography being used to determine the rate of spin of a projectile. A man works on a micro flash camera and light flashes. As the projectile is fired two flash lights being used to take a picture. A photograph of the projectile after firing. Difference in position of projectile from one photo to another helps to establish the rate of spin.
United States naval proving grounds in Dahlgren, Virginia. Different artillery being fired under adverse conditions to test them. Smoke rises due to fire. 55 rounds being fired per minute from a 3 inch artillery gun to test its life expectancy and erosion pattern.
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