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Leduc 0.21
__NOTOC__ The Leduc 0.21 was a research aircraft built in France in 1953 to refine the practicalities of ramjet A ramjet is a form of airbreathing jet engine that requires forward motion of the engine to provide air for combustion. Ramjets work most efficiently at supersonic speeds around and can operate up to . Ramjets can be particularly appropriat ... propulsion. Initially proposed as the 0.20, it was essentially similar to its predecessor, the Leduc 0.10, but scaled up by around 30%, with tip tanks added to the wings. It was not capable of take-off under its own power, and had to be carried aloft and released. Two examples were built and completed a very detailed flight test program from 1953 to 1956 to develop automated, operationally viable throttle controls for the ramjet. This included a total of 284 free flights. Designed for subsonic speeds only, the 0.21 reached a top speed of Mach 0.95. Specifications References Bibliography * * * * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft/page Content
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breguet Aviation
The ''Société anonyme des ateliers d'aviation Louis Breguet'' (), also known as Breguet Aviation (), was a French aircraft manufacturer. The company was set up in 1911 by the aviation pioneer Louis Charles Breguet. Breguet Aviation was extremely active during the First World War, producing numerous military aircraft, such as the pioneering metal Breguet 14 day-bomber, for the Allies of World War I, Allies. During the interwar period, the firm's aircraft set several records for non-stop crossings of the Atlantic Ocean, as well as with the unconventional Breguet-Dorand Gyroplane Laboratoire. It was active during the Second World War, surviving the conflict and largely focusing on commercial transport aircraft during the postwar years. Its most notable military programmes during the Cold War include the Breguet 1150 Atlantic and - with British Aircraft Corporation - the SEPECAT Jaguar. During 1971, Breguet Aviation merged with Dassault Aviation, Dassault to form ''Avions Marcel Das ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
René Leduc
René Henri Leduc (; April 24, 1898 – March 9, 1968) was a French engineer and aircraft manufacturer, renowned for his pioneering work in ramjet propulsion. Leduc's groundbreaking designs, including the Leduc 010, 016, 021, and 022, were instrumental in advancing supersonic aviation technology. After cancellation of French Aviation Ministry's contracts for the Leduc ramjet aircraft projects, in 1958 Leduc's company converted from aeronautics to hydraulics, becoming known as Hydro Leduc and eventually focusing on production of hydraulic pumps for excavators. Early life René Henri Leduc was born on April 24, 1898, in Saint-Germain-lès-Corbeil, Essonne, France. Leduc's early education ended at 14 when he began working as an apprentice mechanic and later as a clerk in a foundry. During World War I, he joined the artillery, fought on the front lines, and graduated as a top-ranking officer from the Fontainebleau cadet training school. After the war, Leduc pursued an engineerin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Aircraft
Research is creative and systematic work undertaken to increase the stock of knowledge. It involves the collection, organization, and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error. These activities are characterized by accounting and controlling for biases. A research project may be an expansion of past work in the field. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, and the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, economic, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramjet
A ramjet is a form of airbreathing jet engine that requires forward motion of the engine to provide air for combustion. Ramjets work most efficiently at supersonic speeds around and can operate up to . Ramjets can be particularly appropriate in uses requiring a compact mechanism for high-speed, such as missiles. Weapons designers are investigating ramjet technology for use in artillery shells to increase range; a 120 mm ramjet-assisted mortar shell is thought to be able to travel . They have been used, though not efficiently, as tip jets on the ends of helicopter rotors. History France Cyrano de Bergerac ''L'Autre Monde: ou les États et Empires de la Lune ( Comical History of the States and Empires of the Moon)'' (1657) was the first of three satirical novels written by Cyrano de Bergerac that are considered among the first science fiction stories. Arthur C Clarke credited this book with conceiving the ramjet, and as the first fictional example of rocket-powered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leduc 0
Leduc may refer to: People * Albert Leduc (1902–1990), Canadian ice hockey player * Alexandre Leduc (born 1984), Canadian politician * Amand Leduc (1764–1832), French Navy officer * Amanda Leduc, Canadian writer * Audrey Leduc (born 1999), Canadian sprinter * Jos LeDuc (1944–1999), Canadian professional wrestler * Kyle LeDuc (1981–2023), American racing driver * Noella Leduc (1933–2014), All-American Girls Professional Baseball League player * Ozias Leduc (1864–1955), Canadian painter * Renato Leduc (1897–1986), Mexican poet and journalist * René Leduc (1898–1968), the designer of the world's first ramjet-powered aircraft * Richard Leduc (born 1941), French actor * Simon Le Duc or Leduc (1742–1777), French violinist and composer * Stéphane Leduc (1853–1939), French biologist * Timothy LeDuc (born 1990), American pairskater * Violette Leduc (1907–1972), French author * Dave Leduc (born 1991), Canadian professional fighter * William Gates LeDuc (1823–1917), A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tip Tank
Aircraft fuel tanks are a major component of aircraft fuel systems. They can be classified into internal or external fuel tanks and can be further classified by method of construction or intended use. Safety aspects of aircraft fuel tanks were examined during the investigation of the 1996 TWA Flight 800 in-flight explosion accident. Internal tanks Integral tanks Integral tanks are areas inside the aircraft structure that have been sealed to allow fuel storage. An example of this type is the " wet wing", commonly used in larger aircraft. Since these tanks are part of the aircraft structure, they cannot be removed for service or inspection. Inspection panels must be provided to allow internal inspection, repair, and overall servicing of the tank. Most large transport aircraft use this system to store fuel in the wings, fuselage and empennage of the aircraft.Whitford 2004, p. 153. Rigid removable tanks Rigid removable tanks are installed in a compartment designed to accommodate th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Launch
Air launching is the practice of releasing a rocket, missile, parasite aircraft or other aircraft payload from a mother ship or launch aircraft. The payload craft or missile is often tucked under the wing of the larger mother ship and then "dropped" while in flight. It may also be stored within a bomb bay, beneath the main fuselage or even on the back of the carrier aircraft, as in the case of the D-21 drone. Air launching provides several advantages over ground launching, giving the smaller craft an altitude and range boost, while saving it the weight of the fuel and equipment needed to take off on its own. History One of the earliest uses of air launching used an airship as a carrier and docking station for biplane parasite fighters. These planes would connect to their mothership through a trapeze-like rig, mounted to the top of the upper wing, that attached to a hook dangling from the bottom of the dirigible above. Fighters could be both launched and retrieved this way, givi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Of Sound
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elasticity (solid mechanics), elastic medium. More simply, the speed of sound is how fast vibrations travel. At , the speed of sound in air is about , or in or one mile in . It depends strongly on temperature as well as the medium through which a sound wave is propagating. At , the speed of sound in dry air (sea level 14.7 psi) is about . The speed of sound in an ideal gas depends only on its temperature and composition. The speed has a weak dependence on frequency and pressure in dry air, deviating slightly from ideal behavior. In colloquial speech, ''speed of sound'' refers to the speed of sound waves in Earth's atmosphere, air. However, the speed of sound varies from substance to substance: typically, sound travels most slowly in gases, faster in liquids, and fastest in solids. For example, while sound travels at in air, it travels at in water (almost 4.3 times a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1950s French Experimental Aircraft
Year 195 ( CXCV) was a common year starting on Wednesday of the Julian calendar. At the time, it was known in Rome as the Year of the Consulship of Scrapula and Clemens (or, less frequently, year 948 ''Ab urbe condita''). The denomination 195 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus has the Roman Senate deify the previous emperor Commodus, in an attempt to gain favor with the family of Marcus Aurelius. * King Vologases V and other eastern princes support the claims of Pescennius Niger. The Roman province of Mesopotamia rises in revolt with Parthian support. Severus marches to Mesopotamia to battle the Parthians. * The Roman province of Syria is divided and the role of Antioch is diminished. The Romans annex the Syrian cities of Edessa and Nisibis. Severus re-establishes his headquarters and the colonies th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leduc Aircraft
Leduc may refer to: People * Albert Leduc (1902–1990), Canadian ice hockey player * Alexandre Leduc (born 1984), Canadian politician * Amand Leduc (1764–1832), French Navy officer * Amanda Leduc, Canadian writer * Audrey Leduc (born 1999), Canadian sprinter * Jos LeDuc (1944–1999), Canadian professional wrestler * Kyle LeDuc (1981–2023), American racing driver * Noella Leduc (1933–2014), All-American Girls Professional Baseball League player * Ozias Leduc (1864–1955), Canadian painter * Renato Leduc (1897–1986), Mexican poet and journalist * René Leduc (1898–1968), the designer of the world's first ramjet-powered aircraft * Richard Leduc (born 1941), French actor * Simon Le Duc or Leduc (1742–1777), French violinist and composer * Stéphane Leduc (1853–1939), French biologist * Timothy LeDuc (born 1990), American pairskater * Violette Leduc (1907–1972), French author * Dave Leduc (born 1991), Canadian professional fighter * William Gates LeDuc ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
