United States Corps of Engineers conduct research and development activities at Camp Tuto in Greenland. Men of United States Corps of Engineers weld a broken roller tractor of a low ground pressure tractor. Damaged section of the tractor. Different parts of a track brace and then the completed job after repair. Welded plate on the repaired track brace. A soldier indicates repair on reverse side of track brace.
The United States aircraft carrier Franklin D Roosevelt. A number of pilots sit and talk in a ready room on board the United States aircraft carrier Franklin D Roosevelt. Flight deck control officer lays out spot on the flight deck model, "Ouija board," in flight deck room. Flight deck personnel discuss Ouija board and how to spot planes. Pharmacist mate, first class, in surgical dressing room. Two men in sick bay sterilize instruments.
United States Capitol in Washington DC, United States. A board reads ' Department of Health Education and Welfare Food and Drugs Administration. A man walks past the department building. Two men move past the board.
Explosions occur in the ocean. A Japanese Judy or Yokosuka D4Y aircraft bursts and cranes into the sea and smoke rises. Guns on board a United States ship. Judy pursued by F6F aircraft. United States F6F aircraft crashes into the sea about 1000 yards off stern. An explosion occurs with ships in the background.
Washington Naval Conference, also called World Disarmament Conference in Washington DC, United States. Cars parked outside Union Station in Washington DC, United States. Two policemen inside a car. Delegates of Disarmament Conference arrive and get into cars and ride to Pan American building.
Activities of United States 94th Aero Squadron in France during World War I. An Army Captain, pilot, in the cockpit of an aircraft. "Hat in Ring" Squadron insignia plainly visible on fuselage. He takes off his flight gear, and hops down from the plane in France. Ground crewmen of United States 94th Aero Squadron perform maintenance on an aircraft. The "Hat in Ring" insignia and large numeral "1" on the fuselage. Airfield is quite muddy.
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