Hermann Oberth performing a burn test on an Oxygen-alcohol fueled "Repulsor" rocket motor. Diagram of the 1 liter "Repulsor"motor and view of the actual motor, with electrodes atop it. The rocke motor on the ground. Hermann Oberth standing near an air-cooled rocket motor. External view of a combustion chamber of light metal, for 25kg of thrust. A view of interior is superimposed on it. A cutaway model is held in man's hand. He shows paths of fuel flow to combustion chamber and exhaust port. Hermann Oberth with his hand on the the actual rocket engine, as they prepare to fuel it with ethyl alcohol and liquid oxygen, at the Berlin Rocket field, in April 1932. The fuel cylinders are seen and vapors rise as they fuel the motor.. Using his hand, Oberth traces the paths of the oxygen and alcohol into the motor body, and the combustion exhaust path. The team steps back as Oberth pours alcohol into one side of the motor. The team steps back quickly and climbs stairs up a hill overlooking the test stand, where several other people await them. At the control site, they close the ignition circuit to the motor. Fumes flow down and flames flare up, but the rocket sustains a controlled burn fairly well, in spite of occasional flareups, and creates sustained thrust measured by the apparatus surrounding the test stand.
Vierstabers rocket standing on its four legs on Lindwerder Island in Lake Tegel, Berlin. Men gathered around as the rocket is being fueled. Fumes from condensation seen. The rocket is fired and rises a considerable distance in the air before falling into the lake. Sketches of the rocket. Heavy steam fumes rising where the rocket has fallen into the water, because the motor appears to be still burning. Two more sequences of rockets launching from the island and falling into the lake. Men in a motorboat retrieving a rocket from the water. Another test launch of a Vierstabers rocket from a boat in the Schwielowsee (lake) in Germany. A motor launch traveling out on the lake, with a Vierstaber rocket on its deck and flying the German national flag. The launch next to a larger boat in the lake. The rocket launches high in the sky and falls into the lake.
Frido W. Kessler and his rocket-propelled mail plane. (Allegedly, the first scheduled mail-delivery rocket flight) Kessler is seen in his workshop with his test stand and apparatus. Launch of Kessler's first winged liquid-fueled (liquid oxygen and Kerosene) mail rocket plane on frozen Greenwood Lake, New York, February 23,1936. Launch team opens the nose to insert mail into the rocket-propelled glider plane (reportedly designed by German rocket pioneer Dr. Willy Ley). Kessler poses with a little girl, Gloria Schleich Quackenbush, for whom the plane is named. She holds a silver cup of snow. They are surrounded by a cluster of men. Photographic equipment is set up next to them. The girl, Gloria, empties the cup of snow onto the tail of the rocket plane, to Christen it "Gloria (I)." Launch team fueling the rocket from containers. A technician in fireproof protective suit lights fuel at tail of the plane. It flares up in flames and then settles down with normal rocket burn, and leaves the launch stand. (A second rocket plane is seen sitting on the ice near the launch stand.) The rocket glider only goes about 20 feet before falling onto the ice. Team members look over the stand and prepare to try again with Kessler's second plane, the "Gloria (II)." They load the mail (6000 letters and postcards) into the nose and set the plane on the launch stand. It launches very nose high, and strikes the ice near the stand. But the rocket motor continues to propel it across the ice until it takes off again and continues, a way in the air until flipping over and crashing on the ice. View of people surrounding the broken plane on the ice. (Note: The second attempt carried the Gloria II and its mail, about 2000 feet, far enough to cross the border from New York into New Jersey, constituting an interstate mail delivery, and making the letters and post cards worthy mementos of the event.)
Battle-weary American soldiers attend an open air chuch service by a barn in Normandy. U.S. gunners commence a concerted artillery barrage before tanks and infantry advance toward Saint Lo, France, in World War 2. Various artillery and tanks are seen, including one M4 Sherman Crab Tank (Mine sweeper). P-47s, flying low altitude close support missions, bomb a critical target, and troops move ahead on the way to Saint Lo. Two German soldiers run to surrender. Saint Lo falls. Scenes of the devastation in the city.
Bomb damage to Siemens Schuckert factory in Nuremberg, Germany. Polish, Russian and French refugees in a camp await trip to home. Women cook, women with their children and belongings get down from a truck. German women live in air raid shelters, hang clothes on clotheslines to dry. Children play around the wall, flags on a building in Furth. Truck convoy passes by the streets. Bomb damage to Messerschmitt factory at Regensburg. (World War II period).
Film about USIA "Operation Vagabond," employing Coast Guard Cutter (USCGC Courier WAGR-410). View of the "Courier," at sea. It is bristling with antennas, and displaying numerous flags, permitting it to operate in many territorial waters. View from her deck to land on the Island of Rhodes in the Eastern Mediterranean Sea. View of sign over a ship's hatch, reading,"Relay Broadcast Receiving Room." Inside, two crew members are seen operating equipment that instantaneously re-transmits Voice of America broadcasts. A sign "On Air," is illuminated in the compartment. Operators seen adjusting various pieces of broadcast equipment. Back on deck, camera focuses on a helium-filled balloon, holding the ship's transmission antenna, aloft. View from another ship, of the "Courier," and the helium balloon, in the distance. Illustrated chart shows fractions of VOA listeners behind the "Iron Curtain," and in mainland China. Cartoon illustrating penalties for VOA listeners. Polish escapee, interpreter, Jan Hajdukiewicz, is seen broadcasting on VOA microphone. He fled the Communist delegation during Korean truce talks at Panmunjom.
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