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René Lorin
René Lorin (24 March 1877 – 16 January 1933) was a French aerospace engineer and inventor of the ramjet. In 1908 Lorin patented the first subsonic ramjet design. He published the principles of a ramjet in articles in the journal ''L'Aérophile ''L’Aérophile'' ("The Aerophile") was a French aviation magazine published from 1893 to 1947. It has been described as "the leading aeronautical journal of the world" around 1910. History and contents ''L’Aérophile'' was founded and r ...'' from 1908 to 1913, expressing the idea that the exhaust from internal combustion engines could be directed into nozzles to create jet propulsion. He could not test this invention since there was no way at the time for an aircraft to go fast enough for a ramjet to function properly. When René Leduc applied for a patent on a ramjet design in 1933, he discovered Lorin's publications and tried to contact him, only to learn that he had recently died. Leduc thereafter paid homage to Lorin's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramjet
A ramjet, or athodyd (aero thermodynamic duct), is a form of airbreathing jet engine that uses the forward motion of the engine to produce thrust. Since it produces no thrust when stationary (no ram air) ramjet-powered vehicles require an assisted take-off like a rocket assist to accelerate it to a speed where it begins to produce thrust. Ramjets work most efficiently at supersonic speeds around and can operate up to speeds of . Ramjets can be particularly useful in applications requiring a small and simple mechanism for high-speed use, such as missiles. The US, Canada, and UK had widespread ramjet powered missile defenses during the 1960s onward, such as the CIM-10 Bomarc and Bloodhound. Weapon designers are looking to use ramjet technology in artillery shells to give added range; a 120 mm mortar shell, if assisted by a ramjet, is thought to be able to attain a range of . They have also been used successfully, though not efficiently, as tip jets on the ends of hel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Espacenet
Espacenet (formerly stylized as ''esp@cenet'') is a free online service for searching patents and patent applications. Espacenet was developed by the European Patent Office (EPO) together with the member states of the European Patent Organisation. Most member states have an Espacenet service in their national language, and access to the EPO's worldwide database, most of which is in English. In 2022, the Espacenet worldwide service claimed to have records on more than 140 million patent publications. History By launching Espacenet in 1998, the EPO is said to have "revolutionized public access to international patent information, releasing patent data from its paper prisons and changing forever how patents are disseminated, organized, searched, and retrieved." In 2004, i.e. in the early years of Espacenet, Nancy Lambert considered that, although free, Espacenet, like the United States Patent and Trademark Office (USPTO) database of US patents, "still tend dto have primitiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L'Aérophile
''L’Aérophile'' ("The Aerophile") was a French aviation magazine published from 1893 to 1947. It has been described as "the leading aeronautical journal of the world" around 1910. History and contents ''L’Aérophile'' was founded and run for many years by Georges Besançon. In 1898 it became the official journal of the Aéro Club of France. Important developments in early aviation were documented in its pages: * Octave Chanute's April 1903 speech to the Aéro-Club describing the excitement of the gliding experiments done by his group in 1896/7 and of the Wright brothers was printed in April, 1903. Also Ferdinand Ferber's 1902 glider, the first in Europe modeled on those of the Wright brothers, was illustrated in the February 1903 issue. * The journal published illustrations of ailerons on Robert Esnault-Pelterie’s glider in June 1905, and the ailerons were widely copied afterward. * In December 1905 and January 1906 journal articles confirmed that the Wright ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Harvard Gibbs-Smith
Charles Harvard Gibbs-Smith (22 March 1909 – 3 December 1981)Charles Gibbs-Smith, famous people from Teddington at Information Britain web site was a British polymath historian of aeronautics and aviation. His obituary in '' The Times'' described him as "the recognised authority on the early development of flying in Europe and America" called him "The greatest of all historians of early aviation". Biography |
René Leduc (1898-1968)
René Leduc (1898–1968) was a French engineer who is much acclaimed for his work on ramjets. In 1949 the Leduc 0.10 became the first aircraft to fly under the power of ramjets alone. Development of this aircraft had begun in 1937, but was severely delayed by the interruption of the Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power .... After cancellation of French Air Ministry contracts for the Leduc ramjet aircraft projects, in 1958 Leduc's company converted from aeronautics to hydraulics, becoming known as 'Hydro Leduc' and eventually focussing on production of hydraulic pumps for excavators. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
École Centrale Paris
École Centrale Paris (ECP; also known as École Centrale or Centrale) was a French grande école in engineering and science. It was also known by its official name ''École Centrale des Arts et Manufactures''. In 2015, École Centrale Paris merged with Supélec to form CentraleSupélec, a constituent college of the University of Paris-Saclay. Founded in 1829, it was among the most prestigious and selective grandes écoles. Rooted in rich entrepreneurial tradition since the industrial revolution era, it served as the cradle for top-level engineers and executives who continue to constitute a major part of the industry leadership in France. Since the 19th century, its model of education for training generalist engineers inspired the establishment of several engineering institutes around the world, such as the École Polytechnique Fédérale de Lausanne in Switzerland, Faculté polytechnique de Mons in Belgium, as well as other member schools of the Ecole Centrales Group alliance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
École Centrale Paris Alumni
École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoie, a French commune * École-Valentin, a French commune in the Doubs département * Grandes écoles Grandes may refer to: * Agustín Muñoz Grandes, Spanish general and politician * Banksia ser. Grandes, a series of plant species native to Australia * Grandes y San Martín, a municipality located in the province of Ávila, Castile and León, Spa ..., higher education establishments in France * The École, a French-American bilingual school in New York City Ecole may refer to: * Ecole Software, a Japanese video-games developer/publisher {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Engine Pioneers
Jet, Jets, or The Jet(s) may refer to: Aerospace * Jet aircraft, an aircraft propelled by jet engines ** Jet airliner ** Jet engine ** Jet fuel * Jet Airways, an Indian airline * Wind Jet (ICAO: JET), an Italian airline * Journey to Enceladus and Titan (JET), a proposed astrobiology orbiter to Saturn * Jet pack, a backpack personal flying device containing a jet motor * Fighter jet, a military aircraft Aircraft * Business jet ** Boeing Business Jet ** Cessna CitationJet/M2 * Very light jet ** Cirrus Vision SF50, originally called "The-Jet by Cirrus" ** Eclipse 400, originally called "Eclipse Concept Jet" ** Honda HA-420 HondaJet ** Piper PA-47 PiperJet Other areas of science, math and technology * Jet (fluid), a coherent stream of fluid that is projected into a surrounding medium, usually from some kind of a nozzle or aperture * Jet (mathematics), an operation on a differentiable function * Jet (particle physics), a narrow cone of hadrons and other particles p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramjet Engines
A ramjet, or athodyd (aero thermodynamic duct), is a form of airbreathing jet engine that uses the forward motion of the engine to produce thrust. Since it produces no thrust when stationary (no ram air) ramjet-powered vehicles require an assisted take-off like a rocket assist to accelerate it to a speed where it begins to produce thrust. Ramjets work most efficiently at supersonic speeds around and can operate up to speeds of . Ramjets can be particularly useful in applications requiring a small and simple mechanism for high-speed use, such as missiles. The US, Canada, and UK had widespread ramjet powered missile defenses during the 1960s onward, such as the CIM-10 Bomarc and Bloodhound. Weapon designers are looking to use ramjet technology in artillery shells to give added range; a 120 mm mortar shell, if assisted by a ramjet, is thought to be able to attain a range of . They have also been used successfully, though not efficiently, as tip jets on the ends of helicopt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1933 Deaths
Events January * January 11 – Sir Charles Kingsford Smith makes the first commercial flight between Australia and New Zealand. * January 17 – The United States Congress votes in favour of Philippines independence, against the wishes of U.S. President Herbert Hoover. * January 28 – " Pakistan Declaration": Choudhry Rahmat Ali publishes (in Cambridge, UK) a pamphlet entitled ''Now or Never; Are We to Live or Perish Forever?'', in which he calls for the creation of a Muslim state in northwest India that he calls " Pakstan"; this influences the Pakistan Movement. * January 30 ** National Socialist German Workers Party leader Adolf Hitler is appointed Chancellor of Germany by President of Germany Paul von Hindenburg. ** Édouard Daladier forms a government in France in succession to Joseph Paul-Boncour. He is succeeded on October 26 by Albert Sarraut and on November 26 by Camille Chautemps. February * February 1 – Adolf Hitler gives his "Proclam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
