A Volkhart R1 car during a test runs in December, 1928 in Germany. Several banks of rockets are seen fitted to the rear of a car. Photographers take pictures. The car seen on test track. Rockets ignite and the car begins to move. Sets of rockets ignite progressively propelling the car faster. But it does not attain notable speed. On a second trial, the rocket car attains a much higher speed and coasts to a stop.
A man in driver seat and a woman in the back seat sit of Volkhart R1 rocket propelled car during a test drive in April 1928 at Nürburgring race course speedway in Nürburg, Germany. The words "Sander-Raketen" (Sander rockets) painted on side of the car. A man near the automobile presents flowers to the woman, just before they start. Photographers take pictures and a man in foreground is seen hand cranking a motion picture camera to record the event. Car on the speedway track. Rockets ignite, propelling the car along the track. Spectators watch.
July 17, 1928, Friedrichshohe, Harz, Sachsen-Anhalt, Germany. Trial run of an Eisfeld-Valier propulsion system on a simple rail car (chassis mounted on steel wheels) running on the Harz Narrow Gauge Railway ,in central Germany. A man fits rocket boosters in the chassis. A flag marks the start point. The car leaves the start point and attains speed of over 100 Km per hour. Spectators stand near the track. July 25, 1928. Another trial run of the rocket-propelled rail car. Men near Eisfeld-Valier-Rak-1propelled rail car on tracks. Men fit rocket boosters in the car. The boosters are ignited. The car attains a speed of 180 Km per hour. July 26, 1928. Official speed run of the Eisfeld-Valier-Rak 1rail car at Stiege, Germany. On this third run, the car reached 180 km / hr but continues its strong acceleration, causing it to derail and fly off the track at a speed estimated to be 300 Km per hour.
An Eisfeld-Valier-Rak-1 sledge test driven in February, 1929 on the Eibsee lake, Bavaria, Germany. Men fit rocket boosters in the unmanned sledge. The sledge stands in snow. Spectators watch nearby. A man lights a fuse and steps away. Rockets ignite and propel the sledge across the lake surface with considerable fire and smoke. The experimenters run to the sledge and extinguish smoking rockets by throwing snow on them.
April, 1931 in Germany. View of a closed sled resembling a small airplane fuselage, fitted with runners underneath and bundles of rockets on each side. It sits on a frozen lake. BR-1 is painted on its side. A man arrives and climbs into the cockpit. The rockets ignite and accelerate the plane somewhat erratically, as it moves along the lake surface.
Descriptions and diagrams of various model airplanes used in experiments with solid powder propulsion, in Germany starting in 1927. Diagram of a 'Storch' model airplane. Diagram of "Ente"(Duck) model airplane. An Opel full scale model "Ent" airplane being checked out on a launching rail at an airfield. Fritz von Opel makes adjustments at the rear of the airplane and, assisted by several other men, moves the airplane along the launch ramp and back again. On the side of the plane is written: "Sander AK-1." Photographers take pictures. The first manned test of an Opel "ent" airplane is undertaken by the Research Institute of the RhonRossitten-Gesellschaft (RRG) under the direction of Fritz Stamer. In the first three trials the airplane fails to rise and simply skids along the ground. However, on the 4th try, it successfully flies off the launch rail in an extended high speed flight, for three-quarters of a mile in just under one minute. The successful flight is then shown in slow motion from two different camera angles.
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