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Ader Éole
The ''Ader Éole'', also called ''Avion'' (French for ''aeroplane''), was an early steam-powered aircraft developed by Clément Ader in the 1890s and named after the Greco-Roman wind god Aeolus. Design and development Unlike many early flying machines, the Éole did not attempt to fly by flapping its wings, but relied on the lift generated by its wings in forward motion. With wings resembling mechanical copies of bat wings, its steam engine was an unusually light-weight design driving a propeller at the front of the aircraft, but lacking any means for the pilot to control the direction of flight. According to late 1907 claims made by Clément Ader,Clément Ader (1907)“La première étape de l'aviation militaire en France” ''J. Bosc et Cie, 38 Chaussée d’Antin 38.'', p. 6 on 8 October 1890, the machine achieved a short flight of around 50 m (164 ft) at the Chateau d'Armainvilliers in Brie. It reached a height of around 20 cm (8 in). The poor power-to- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister 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 the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Experimental Aircraft
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Mozhaysky
Mozhaysky, identified as the "Creator of world's first airplane", on a 1963 Soviet postal stamp. Alexander Fedorovich Mozhaysky Pol. Aleksander Teodorowicz Możajski (also transliterated as Mozhayski, Mozhayskii and Mozhayskiy; russian: Алекса́ндр Фёдорович Можа́йский) ( – ) was an admiral in the Imperial Russian Navy of Polish origin aviation pioneer, researcher and designer of heavier-than-air craft. Biography Mozhaysky was born to Polish parents in Rochensalm, in the Grand Duchy of Finland (present-day Kotka), southern Finland, then part of the Russian Empire. His father was an admiral in the Imperial Russian Navy, and Mozhaysky graduated from the Sea Cadet Corps in 1841. He spent the next seven years on voyages in the Baltic Sea and in the White Sea on various vessels, and was commissioned as a lieutenant in 1849. He served with the Baltic Fleet from 1850 to 1852. In 1853 he was selected as a member of Vice Admiral Yevfimy Putyatin’s ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale Models
Scale or scales may refer to: Mathematics * Scale (descriptive set theory), an object defined on a set of points * Scale (ratio), the ratio of a linear dimension of a model to the corresponding dimension of the original * Scale factor, a number which scales, or multiplies, some quantity * Long and short scales, how powers of ten are named and grouped in large numbers * Scale parameter, a description of the spread or dispersion of a probability distribution * Feature scaling, a method used to normalize the range of independent variables or features of data * Scale (analytical tool) Measurements * Scale (map), the ratio of the distance on a map to the corresponding actual distance * Weighing scale, an instrument used to measure mass * Scale (ratio), the ratio of the linear dimension of the model to the same dimension of the original * Spatial scale, a classification of sizes * Scale ruler, a tool for measuring lengths and transferring measurements at a fixed ratio of length * Verni ... [...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] |
1990 In Aviation
This is a list of aviation-related events from 1990: Events *Pan American World Airways and Trans World Airlines, both in financial difficulty, transfer their coveted landing rights at London Heathrow Airport to American Airlines and United Airlines. January * January 4 – Northwest Airlines Flight 5, a Boeing 727-251 with 145 people on board, takes off from Miami International Airport in Miami, Florida, for a flight to Minneapolis–Saint Paul International Airport in Minneapolis, Minnesota, with its forward lavatory external seal improperly installed, causing a leakage which allows the starboard engine to ingest frozen chunks of lavatory fluid. The engine detaches from the aircraft at 35,000 feet (10,668 m) over Madison, Florida, an hour into the flight. The aircraft flies normally for another 50 minutes until the crew makes a safe emergency landing at Tampa International Airport in Tampa, Florida. * January 11 – The United States Department of Defense awards Bell Helico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replica
A 1:1 replica is an exact copy of an object, made out of the same raw materials, whether a molecule, a work of art, or a commercial product. The term is also used for copies that closely resemble the original, without claiming to be identical. Also has the same weight and size as original. Replicas have been sometimes sold as originals, a type of fraud. Most replicas have more innocent purposes. Fragile originals need protection, while the public can examine a replica in a museum. Replicas are often manufactured and sold as souvenirs. An inverted replica complements the original by filling its gaps. Sometimes the original never existed. It is logically impossible for there to be a replica of something that never existed. Replicas and reproductions can be related to any form of licensing an image for others to use, whether it is through photos, postcards, prints, miniature or full size copies they represent a resemblance of the original object. Not all incorrectly attributed it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Catapult
An aircraft catapult is a device used to allow aircraft to take off from a very limited amount of space, such as the deck of a vessel, but can also be installed on land-based runways in rare cases. It is now most commonly used on aircraft carriers, as a form of assisted take off. In the form used on aircraft carriers the catapult consists of a track, or slot, built into the flight deck, below which is a large piston or ''shuttle'' that is attached through the track to the nose gear of the aircraft, or in some cases a wire rope, called a catapult bridle, is attached to the aircraft and the catapult shuttle. Other forms have been used historically, such as mounting a launching cart holding a seaplane on a long girder-built structure mounted on the deck of a warship or merchant vessel, but most catapults share a similar sliding track concept. Different means have been used to propel the catapult, such as weight and derrick, gunpowder, flywheel, air pressure, hydraulic, and steam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power-to-weight Ratio
Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power source. It is also used as a measurement of performance of a vehicle as a whole, with the engine's power output being divided by the weight (or mass) of the vehicle, to give a metric that is independent of the vehicle's size. Power-to-weight is often quoted by manufacturers at the peak value, but the actual value may vary in use and variations will affect performance. The inverse of power-to-weight, weight-to-power ratio (power loading) is a calculation commonly applied to aircraft, cars, and vehicles in general, to enable the comparison of one vehicle's performance to another. Power-to-weight ratio is equal to thrust per unit mass multiplied by the velocity of any vehicle. Power-to-weight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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