Construction of Bailey bridge near Caen in France during World War II. A view of a river. Engineers stand on a grilled structure on the river. British engineers at work for the construction of Bailey bridge. Many bulldozers being used during the operation. The partially constructed bridge. A trailer raises and dumps concrete. A grilled structure being pushed towards another structure. Men walk on the bridge carrying wooden planks. The engineers lay planks. Men stand on the bridge as they talk. The partially constructed bridge.
U.S. aviation pioneer General James Harold 'Jimmy' Doolittle sets a new air record for flying a passenger airplane from Burbank, California to Newark, New Jersey in twelve hours. Doolittle and his wife seen looking at a map. They both board the waiting aircraft, American Airlines’ Vultee V-1A Special NC13770. 'Shell' oil company symbol written on the airplane. The airplane taxis and takes off from Union Air Terminal, Burbank, California. Aerial view of the airplane in flight over mountains. The airplane in flight over the clouds. The airplane lands at Newark Airport and taxis on a runway. Hangars and a building in the background. Doolittle exits the airplane with his wife at and greets people waiting. They pose for pictures beside the airplane.
A World War II training film depicts the use of barrage balloon to damage enemy airplanes flying at low altitude during a war in the United States. Animation shows the barrage balloons attached with wired cables in the protected area. A barrage balloon in sky. Enemy airplane in flight against the wind hits the balloon. The cable breaks and airplane can get damage. An airplane in flight in the wind direction. The airplane hits the cable and no damage is caused. The wire falls at the base. The barrage balloon flies away. Animation shows links attached to the cable in a barrage balloon. The enemy aircraft approaches the balloon. The aircraft cuts the link. The cable wire with attached parachute comes on the wing. The parachute opens and the wire cuts the wing of the airplane. The balloons deflates comes down.
A World War II training film depicts the use of barrage balloon to damage enemy airplanes flying at low altitude during a war in the United States. Animation shows the influence of weather on the barrage balloon. A balloon floats in air due to high wind. The cable breaks. The balloon flies and drags cable on the ground. Sparkling on electric wires as cable hits the wires. The cable accidentally breaks. The dive in the balloon explodes cuts the cable. The parachute opens. The balloon deflates floats downwards. Animation shows links attached in the wire cable and their function.
A World War II training film depicts the use of barrage balloon to damage enemy airplanes flying at low altitude during a war in the United States. Animation shows the function of upper link attached in the wire cable as an enemy airplane hits the cable. Animation shows the function of the lower link as the airplane hits the cable. The flying cable is cut. The parachute opens. The balloons attached with wire cables in sky. The results of the cable armament operation. An enemy airplane burns. Soldiers look at the airplane as it burns. The soldiers retrieve the balloon. A soldier folds the links of cable. Another soldier holds a link in his hand.
Igor Sikorsky, Russian American Designer of U.S. aircraft, demonstrates a test flight of the Vought-Sikorsky VS-300 helicopter in Bridgeport, Connecticut. Igor Sikorsky seated in the cockpit of the Vought-Sikorsky VS-300 helicopter. Igor Sikorsky holds the controls in his hands. A single three-blade main rotor and a smaller anti-torque tail mounted rotor on the VS-300. People look at the VS-300 hovering in the air. The helicopter raises from the ground and hovers in the air. The helicopter descends to the ground.
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