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Eugen Sänger
Eugen Sänger (22 September 1905 – 10 February 1964) was an Austrian aerospace engineer best known for his contributions to lifting body and ramjet technology. Early career Sänger was born in the former mining town of Preßnitz (Přísečnice), near Komotau in Bohemia, at that time part of the Austro-Hungarian Empire. He studied civil engineering at the Technical Universities of Graz and Vienna. As a student, he came in contact with Hermann Oberth's book ''Die Rakete zu den Planetenräumen'' ("By Rocket into Planetary Space"), which inspired him to change from studying civil engineering to aeronautics. He also joined Germany's amateur rocket movement, the '' Verein für Raumschiffahrt'' (VfR – "Society for Space Travel") which was centered on Oberth. In 1932 Sänger became a member of the SS and was also a member of the NSDAP. Sänger made rocket-powered flight the subject of his thesis, but it was rejected by the university as too fanciful. In 1928 and 1929 the Opel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bohemia
Bohemia ( ; cs, Čechy ; ; hsb, Čěska; szl, Czechy) is the westernmost and largest historical region of the Czech Republic. Bohemia can also refer to a wider area consisting of the historical Lands of the Bohemian Crown ruled by the Bohemian kings, including Moravia and Czech Silesia, in which case the smaller region is referred to as Bohemia proper as a means of distinction. Bohemia was a duchy of Great Moravia, later an independent principality, a kingdom in the Holy Roman Empire, and subsequently a part of the Habsburg monarchy and the Austrian Empire. After World War I and the establishment of an independent Czechoslovak state, the whole of Bohemia became a part of Czechoslovakia, defying claims of the German-speaking inhabitants that regions with German-speaking majority should be included in the Republic of German-Austria. Between 1938 and 1945, these border regions were joined to Nazi Germany as the Sudetenland. The remainder of Czech territory became the Seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verein Für Raumschiffahrt
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{{disambiguation ...
''Verein'' is a German word, sometimes translated as ''union'', ''club'' or ''association'', and may refer to: * '' Eingetragener Verein'' (e. V.), a registered voluntary association under German law * Swiss Verein, a voluntary association under Swiss law, not necessarily registered See also * Association (other) * Verein für Socialpolitik, a society of economists in the German-speaking area * Voluntary association A voluntary group or union (also sometimes called a voluntary organization, common-interest association, association, or society) is a group of individuals who enter into an agreement, usually as volunteers, to form a body (or organization) to ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Oxygen
Liquid oxygen—abbreviated LOx, LOX or Lox in the aerospace, submarine and gas industries—is the liquid form of molecular oxygen. It was used as the oxidizer in the first liquid-fueled rocket invented in 1926 by Robert H. Goddard, an application which has continued to the present. Physical properties Liquid oxygen has a pale blue color and is strongly paramagnetic: it can be suspended between the poles of a powerful horseshoe magnet. Liquid oxygen has a density of , slightly denser than liquid water, and is cryogenic with a freezing point of and a boiling point of at . Liquid oxygen has an expansion ratio of 1:861 under and , and because of this, it is used in some commercial and military aircraft as a transportable source of breathing oxygen. Because of its cryogenic nature, liquid oxygen can cause the materials it touches to become extremely brittle. Liquid oxygen is also a very powerful oxidizing agent: organic materials will burn rapidly and energetically in l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Braunschweig
Braunschweig () or Brunswick ( , from Low German ''Brunswiek'' , Braunschweig dialect: ''Bronswiek'') is a city in Lower Saxony, Germany, north of the Harz Mountains at the farthest navigable point of the river Oker, which connects it to the North Sea via the rivers Aller and Weser. In 2016, it had a population of 250,704. A powerful and influential centre of commerce in medieval Germany, Brunswick was a member of the Hanseatic League from the 13th until the 17th century. It was the capital city of three successive states: the Principality of Brunswick-Wolfenbüttel (1269–1432, 1754–1807, and 1813–1814), the Duchy of Brunswick (1814–1918), and the Free State of Brunswick (1918–1946). Today, Brunswick is the second-largest city in Lower Saxony and a major centre of scientific research and development. History Foundation and early history The date and circumstances of the town's foundation are unknown. Tradition maintains that Brunswick was created through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amerika Bomber
The ''Amerikabomber'' () project was an initiative of the German Ministry of Aviation (''Reichsluftfahrtministerium'') to obtain a long-range strategic bomber for the '' Luftwaffe'' that would be capable of striking the United States (specifically New York City) from Germany, a round-trip distance of about . The concept was raised as early as 1938, but advanced plans for such a long-range strategic bomber design did not begin to appear before ''Reichsmarschall'' Hermann Göring until early 1942. Various proposals were put forward, but these plans were all eventually abandoned as they were too expensive, too reliant on rapidly-diminishing materiel and production capacity, and/or technically unfeasible. Background According to Albert Speer's book, '' Spandau: The Secret Diaries'', Adolf Hitler was fascinated with the idea of New York City in flames. In 1937, Willy Messerschmitt hoped to win a lucrative contract by showing Hitler a prototype of the Messerschmitt Me 264 that wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reichsluftfahrtministerium
The Ministry of Aviation (german: Reichsluftfahrtministerium, abbreviated RLM) was a government department during the period of Nazi Germany (1933–45). It is also the original name of the Detlev-Rohwedder-Haus building on the Wilhelmstrasse in central Berlin, Germany, which today houses the German Finance Ministry (german: Bundesministerium der Finanzen). The Ministry was in charge of development and production of all aircraft developed, designed and built in Germany during the existence of the Third Reich, overseeing all matters concerning both military and civilian designs – it handled military aviation matters as its top priority, particularly for the Luftwaffe. As was characteristic of government departments in the Nazi era, the Ministry was personality-driven and formal procedures were often ignored in favour of the whims of the Minister, ''Reichsmarschall'' Hermann Göring. As a result, early successes in aircraft development progressed only slowly and erratically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket
A rocket (from it, rocchetto, , bobbin/spool) is a vehicle that uses jet propulsion to accelerate without using the surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. Rockets work more efficiently in a vacuum and incur a loss of thrust due to the opposing pressure of the atmosphere. Multistage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. Compared with airbreathing engines, rockets are lightweight and powerful and capable of generating large accelerations. To control their flight, rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, or gravity. Rockets for military and recreational uses date back to at least 13th-century China. Signi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wing Truss
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 ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Hatry
Julius Hatry (30 December 1906 – 7 November 2000) was a German aircraft designer and builder. He is remembered for his contributions to sailplane development in the early twentieth century and for building the world's first purpose-built rocket plane, the Opel RAK.1."Das RAK-Protokoll", a 25 minutes documentary on the Opel RAK program incl. Hatry interview https://opel-tv-footage.com/v/The%20RAK%20Protocoll?p=4&c=86&l=1 Hatry was born in Mannheim as son of Katharina and Julius Hatry senior, a successful Mannheim real estate entrepreneur. Julius Hatry junior developed an early interest in aviation, joining the Mannheim flying club in 1922. With the club, he became a frequent visitor to the annual gliding competitions held at the Wasserkuppe during the 1920s. Between 1927 and 1928, he assisted in the construction of the ''Kakadu'' (then the largest sailplane ever built) with the Munich Akaflieg (student flying) group. References from Alexander Lippisch and Oskar Ursinus helpe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Von Opel
Fritz Adam Hermann von Opel (4 May 1899 – 8 April 1971) was a German rocket technology pioneer and automotive executive, nicknamed "Rocket-Fritz". He is remembered mostly for his spectacular demonstrations of rocket propulsion that earned him an important place in the history of aviation and spaceflight as head of the world's first large-scale rocket program, Opel-RAK. Fritz von Opel, known as Fritz Adam Hermann Opel until his father was ennobled in 1917, was the only son of Wilhelm von Opel and a grandson of Adam Opel, founder of the Opel company. Life and career Opel was born in Rüsselsheim. He studied at the Technische Universität Darmstadt and received his doctorate from the university. After graduation, he was made director of testing for the Opel company and also put in charge of publicity. Fritz von Opel was a grandson of Adam Opel and son of Wilhelm von Opel. His sister was Elinor von Opel, a cousin Georg von Opel. When his father Wilhelm was raised to hereditary n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opel RAK
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opel RAK1 2
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. Some Opel vehicles were badge-engineered in Australia under the Holden brand until 2020 and in North America and China under the Buick, 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 achieved, and the world's first rocket-powered flights we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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