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.
A U.S. Navy airship lands aboard the U.S. aircraft carrier USS Bennington (CV-20) underway in the Atlantic Ocean. A signal officer signals on the deck of the carrier. He gives landing signal. Advancing party men hold short lines and pass it on to short line party. Ground officer signals. Drag rope party steadies the tail of the airship as it lands. Crew members fasten the lines and when all lines are secured airship lands. Before take off ground officer signals. Short lines being let loose and it takes off. Another airship in flight in the background. In case of adverse weather an airship being refueled in mid air. A fuel hose being hoisted aboard the airship to be refueled without landing. An airship in flight over the deck of an aircraft carrier.
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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