Slate refers to Leinweber brothers helicopter in Chicago. View of their helicopter being moved out of a hangar in 1922. Closeup of helicopter controls being demonstrated. Next, a helicopter of M. Douheret, of France, is shown in 1919. Men stand nearby and watch its rotors turn in the breeze. Engine cylinders are clearly visible. Pilot sits in the machine and adjusts controls. Next he stands and starts engine. Suddenly, the running helicopter tips over and he runs for safety but returns to shut the engine down. In a second attempt, the pilot is again seen standing next to the machine, with its engine running. And, again, he must run to safety, as it tips over. This time it stops running by itself, and other men help him tip it back upright.
U.S. troops arriving back in America from Europe following World War 1. American soldiers crowd the railings of the R.M.S Mauretania, which is coated in camouflage paint. A number of tug boats assist the Mauretania in docking. Crowd of people and vehicles seen waiting at Pier 54 Cunard Line docks with "Cunard Line" sign seen. Horse-drawn carriage loaded with boxes. American soldiers ride on Army trucks leaving the Cunard Line docks. (World War One; WWI; WW1)
Senator Edward M. Kennedy at his desk. Aero Commander 680 plane wreckage after crash near Southampton, Massachusetts. Policemen and police cars at the crash site, where Senator Kennedy had been pulled from the wreckage. Sign at entrance of hospital reads 'The Cooley Dickinson Hospital - Entrance'. Cars parked outside the hospital. Attorney General Robert Kennedy and others at the hospital. Robert Kennedy at a mike in a press conference. Cameramen record the event.
A mobile nuclear artillery cannon nicknamed 'Amazon Annie' (also called "Atomic Annie") passes over a bridge. M65 Nuclear artillery during transport. During the Upshot-Knothole series of nuclear tests, Nuclear artillery Amazon Annie is fired for the first time at Frenchman Flat on Nevada Test Site. Test codename was Grable. Fireball rises from the blast which was the first and only nuclear artillery shell ever fired from a cannon.
U.S. Navy officers inspect captured Japanese Mitsubishi A6M, the infamous "Zero" fighter plane. The captured enemy aircraft has been painted over with U.S. markings and tested at Naval Air Station in Anacostia . A test pilot prepares to fly the captured plane. The captured Japanese Zero taxiing out for take off. Japanese Zero in flight. (World War II period).
Piloted by the tug boat 'Thomas F. Timmins' the first German cargo submarine 'Deutschland', a blockade buster of the Entente Powers naval blockade, arrives in Baltimore Harbor. An animated map shows the movement of the submarine from Germany. Captain of the German submarine 'Deutschland', Paul König, with other men (Konig's name is listed in the slate as Koenig). German sailors on the submarine as it is escorted in port by the tug Timmins. Last part of clip switches to the Atlantic waters off of Provincetown, Massachusetts, where the latest United States Navy submarine, the USS M-1 (SS-47) is seen during its test trials. It was the world's first doubled-hulled submarine.
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