Development of air power. The National Aeronautics Association (NAA) annual races in Dayton, Ohio. A small aircraft flying at high speed around pylons at an air show. A large crowd in the grandstands to watch the races.
Early model aircraft are used for different purposes in the United States. The Department of Agriculture and U.S. Army Air Service kill insect pests. A DH-4D aircraft crop dusts a field. The Department of Agriculture fights boll weevil with the help of U.S. Army Air Service. A DH-D Curtiss aircraft with a Wright engine crop dusts a field.
Aircraft are used for different purposes in the United States. The U.S. Air Mail Service makes use of commercial aviation. Snow covered mountains as seen from an aircraft. Animation of a small aircraft following a line across a map from New York to San Francisco. A U.S. air mail truck is backed up to a U.S. mail service converted Airco DH-4 aircraft on a grass landing field.
The need to develop air power in the United States. Battleships underway at sea. Eleven bi winged single engine aircraft fly in a V formation. A line of 6 battleships in water off the coast of New England, U.S. A 1920 vintage battleship fires a salvo from its guns at the enemy. The battleships fire guns. Shore batteries fire large guns. Sailors load a deck gun. An early model submarine. The submarine submerges. Its periscope visible above water surface. Naval crafts set their depth charges and fire them. Depth charges going off in the background. A ship sinks. A United States Army Air Service ( USAAS ) Curtiss PW-8 aircraft in flight. 4 bombs fall away from the aircraft. The bombs hit and explode on USS Alabama. Smoke rises as explosions occur on the ship. A ship rolls over and sinks. A USAAS Curtiss-Martin NBS-1 bomber in flight. Two bombs fall away from the aircraft. Explosions in water. Aerial and ground shots of a ship sinking. Large guns of a battleship fire. Animation of enemy airships and aircraft flying over water towards New York. Release of the aircraft from the airships. Aircraft flying over New York City. Aerial view of skyscrapers of the city. A Curtiss- Martin NBS-1 bomber in flight. Two bombs fall toward the ground. Animation of explosions against the New York skyline. A USAAS Curtiss JN-4 aircraft in flight. A bomb falls towards the ground. Animation of bombs hitting New York City. A machine gunner in a fighter aircraft fires at another aircraft. The aircraft falls and burns. Bomb explosions in the city. An observation balloon catches fire and falls. A man in a parachute descends near the balloon. Animation of a burning city. An early model submarine cruising. A bi winged twin pontooned aircraft in flight over a group of battleships and destroyers. A group of aircraft in flight. A Fokker T-2 aircraft in flight. Animation of an airship flying over a city and tying up to a mast located on the top of a tall building. A flag of the U.S. flutters in breeze.
Royal Air Force aircraft parked in rows on a field in England. King George V and Prince of Wales review the Royal Air Force. An aircraft takes off. A formation of aircraft in flight.
Soviet air defense sites in the Soviet Union. Radar antennas on the Soviet air defense sites. The antennas near a beach and in a snow covered area.
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