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Opel RAK.3
Opel-RAK were a series of rocket vehicles produced by German automobile manufacturer Fritz von Opel, of the Opel car company, in association with others, including Max Valier, Julius Hatry, and Friedrich Wilhelm Sander. Opel RAK is generally considered the world's first large-scale rocket program, significantly advancing rocket and aviation technology as well as instrumental in popularizing rockets as means of propulsion. In addition Opel RAK demonstrations were also highly successful as publicity stunts for the Opel car company. The Lippisch Ente (meaning “duck” in German), the world's first rocket-powered glider and piloted for its first flight on June 11, 1928, by Fritz Stamer at Wasserkuppe, was bought and operated by Opel in context of the Opel RAK program but is not formally designated an Opel RAK series number. Also a rocket-powered RAK-Motoclub motorbike, based on a conventional Opel Motoclub 500 SS and presented at the Berlin Motorshow 1928, did not receive a formal R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opel
Opel Automobile GmbH (), usually shortened to Opel, is a German automobile manufacturer which has been a subsidiary of Stellantis since 16 January 2021. It was owned by the American automaker General Motors from 1929 until 2017 and the PSA Group, a predecessor of Stellantis, from 2017 until 2021. Opel vehicles are sold in the United Kingdom as Vauxhall Motors, Vauxhall. Some Opel vehicles were badge engineering, badge-engineered in Australia under the Holden brand until 2020 and in North America and China under the Buick, Saturn Corporation, Saturn, and Cadillac brands. Opel traces its roots to a sewing machine manufacturer founded by Adam Opel in 1862 in Rüsselsheim am Main. The company began manufacturing bicycles in 1886 and produced its first automobile in 1899. With the Opel RAK program, the world's first rocket program, under the leadership of Fritz von Opel, the company played an important role in the history of aviation and spaceflight: Various land speed records were a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AVUS
The Automobil-Verkehrs- und Übungsstraße ('Automobile traffic and training road'), known as AVUS, is a public road in Berlin, Germany. Opened in 1921, it was also used as a motor racing circuit until 1998. Today, the AVUS forms the northern part of the Bundesautobahn 115. Circuit The highway is located in the southwestern districts of Berlin, linking the Stadtring at the Funkturm junction in Charlottenburg with Nikolassee. It runs through the Grunewald forest along the historic ''Königsweg'' road from Charlottenburg to Potsdam and the parallel Berlin-Blankenheim railway line. While normal for a road, it is unusually shaped for a race track as it is essentially two long straights in the form of a dual carriageway, with a hairpin corner at each end. The north curve featured a steep banking from 1937 to 1967. While the original layout was long, the southern turn was moved several times, to shorten the track to , then without the banking, and finally . History In 1907 the K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailplane
A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplanes. Not all fixed-wing aircraft have tailplanes. Canards, tailless and flying wing aircraft have no separate tailplane, while in V-tail aircraft the vertical stabiliser, rudder, and the tail-plane and elevator are combined to form two diagonal surfaces in a V layout. The function of the tailplane is to provide stability and control. In particular, the tailplane helps adjust for changes in position of the centre of pressure or centre of gravity caused by changes in speed and attitude, fuel consumption, or dropping cargo or payload. Tailplane types The tailplane comprises the tail-mounted fixed horizontal stabiliser and movable elevator. Besides its planform, it is characterised by: *Number of tailplanes - from 0 ( tailless or canard) t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wing
A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is expressed as its lift-to-drag ratio. The lift a wing generates at a given speed and angle of attack can be one to two orders of magnitude greater than the total drag on the wing. A high lift-to-drag ratio requires a significantly smaller thrust to propel the wings through the air at sufficient lift. Lifting structures used in water include various foils, such as hydrofoils. Hydrodynamics is the governing science, rather than aerodynamics. Applications of underwater foils occur in hydroplanes, sailboats and submarines. Etymology and usage For many centuries, the word "wing", from the Old Norse ''vængr'', referred mainly to the foremost limbs of birds (in addition to the architectural aisle). But in recent centuries the word's meaning has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ente
The Ente (german: duck) was the world's first full-sized rocket-powered aircraft. It was designed by Alexander Lippisch as a sailplane and first flown under power on June 11, 1928, piloted by Fritz Stamer as part of the Opel-RAK rocket program led by Fritz von Opel and Max Valier. During the late 1920s von Opel had made a variety of demonstrations involving rocket-powered vehicles for the Opel company. He was assisted by the pyrotechnics manufacturer Friedrich Sander and the rocketry advocate Max Valier. In March 1928 the three men visited the Wasserkuppe, a mountain which had become the center of German gliding to investigate the possibility of fitting rockets to an aircraft. There they encountered some of Lippisch's revolutionary gliders, which because of their tail-less designs seemed suitable for adapting to rocket propulsion. Lippisch was able to demonstrate how models of his aircraft would fly with small rockets installed in them. In June von Opel, Sander, and Valier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailplane
A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplanes are aerodynamically streamlined and so can fly a significant distance forward for a small decrease in altitude. In North America the term 'sailplane' is also used to describe this type of aircraft. In other parts of the English-speaking world, the word 'glider' is more common. Types Gliders benefit from producing the least drag for any given amount of lift, and this is best achieved with long, thin wings, a slender fuselage and smooth surfaces with an absence of protuberances. Aircraft with these features are able to soar – climb efficiently in rising air produced by thermals or hills. In still air, sailplanes can glide long distances at high speed with a minimum loss of height in between. Sailplanes have rigid wings and either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Lippisch
Alexander Martin Lippisch (November 2, 1894 – February 11, 1976) was a German aeronautical engineer, a pioneer of aerodynamics who made important contributions to the understanding of tailless aircraft, delta wings and the ground effect, and also worked in the U.S. Within the Opel-RAK program, he was the designer of the world's first rocket-powered glider. He developed and conceptualized delta wing designs which functioned practically in supersonic delta wing fighter aircraft as well as in hang gliders. People he worked with continued the development of the delta wing and supersonic flight concepts over the 20th century. His most famous designs are the Messerschmitt Me 163 rocket-powered interceptorReitsch, H., 1955, The Sky My Kingdom, London: Biddles Limited, Guildford and King's Lynn, and the Dornier Aerodyne. Early life Lippisch was born in Munich, Kingdom of Bavaria. He later recalled that his interest in aviation began with a demonstration conducted by Orville Wright ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RRG Raketen-Ente Deutsches Segelflugmuseum 01 2009-05-31 , a luxury saloon car
{{Disambig ...
RRG may be: * Reichs-Rundfunk-Gesellschaft, a network of German broadcasting companies * Rhön-Rossitten Gesellschaft, a German gliding organization * Role and Reference Grammar, a model of natural language grammar * Rolls-Royce Ghost The Rolls-Royce Ghost is a full-sized luxury car manufactured by Rolls-Royce Motor Cars. The "Ghost" nameplate, named in honour of the Silver Ghost, a car first produced in 1906, was announced in April 2009 at the Auto Shanghai show. The produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Schmeling
Maximilian Adolph Otto Siegfried Schmeling (, ; 28 September 1905 – 2 February 2005) was a German boxing, boxer who was heavyweight champion of the world between 1930 and 1932. His two fights with Joe Louis in 1936 and 1938 were worldwide cultural events because of their national associations. Schmeling is the only boxer to win the world heavyweight championship on a foul. Starting his professional career in 1924, Schmeling went to the United States in 1928 and, after a ninth-round technical knockout of Johnny Risko, became a sensation. He became the first to win the heavyweight championship (at that time vacant) by disqualification in 1930, after opponent Jack Sharkey knocked him down with a low blow in the fourth round. Schmeling retained his crown successfully in 1931 by a technical knockout victory over Young Stribling. A rematch in 1932 with Sharkey saw the American gaining the title from Schmeling by a controversial fifteen-round split decision. In 1933, Schmeling lost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woman In The Moon
''Woman in the Moon'' (German language, German ''Frau im Mond'') is a German science fiction silent film that premiered 15 October 1929 at the UFA-Palast am Zoo cinema in Berlin to an audience of 2,000. It is often considered to be one of the first "serious" science fiction films. A gallery of behind-the-scenes shots of movies featuring space travel or aliens. Page 68, photo caption: "Directed by Fritz Lang (third from right), the silent film ''Woman in the Moon'' (1929) is considered one of the first serious science fiction films and invented the countdown before the launch of a rocket. Many of the basics of space travel were presented to a mass audience for the first time." It was directed by Fritz Lang, and written by his wife Thea von Harbou, based on her 1928 novel ''The Rocket to the Moon (novel), The Rocket to the Moon''. It was released in the US as ''By Rocket to the Moon'' and in the UK as ''Woman in the Moon''. The basics of rocket travel were presented to a mass audi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
