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Aircraft Cavern
Aircraft cavern, a calque of the German word ''Flugzeugkaverne'', is an underground hangar amongst others used by the Swiss Air Force. Historical During World War II, the neutral Swiss military airfields were for the first time equipped with simple arched concrete U-43 type shelters to protect the aircraft parked underneath. After World War II, starting in 1947, these open objects became even better protected with steel doors, thus creating the U-68 type shelter. Shortly after World War II and the beginning of the Cold War with the possible escalation between the nuclear superpowers of the Eastern and Western blocks, the Swiss Air Force began to develop concepts for defending their neutrality in the case of a conflict. In the 1940s, the Swiss army had already built so-called ''retablierstollen'' (re-equipping caves) at some airfields. These ''retablierstollen'' consisted of 100m long straight tunnels excavated in the rock, making it possible to store and eventually re-arm small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calque
In linguistics, a calque () or loan translation is a word or phrase borrowed from another language by literal word-for-word or root-for-root translation. When used as a verb, "to calque" means to borrow a word or phrase from another language while translating its components, so as to create a new lexeme in the target language. For instance, the English word "skyscraper" was calqued in dozens of other languages. Another notable example is the Latin weekday names, which came to be associated by ancient Germanic speakers with their own gods following a practice known as ''interpretatio germanica'': the Latin "Day of Mercury", ''Mercurii dies'' (later "mercredi" in modern French), was borrowed into Late Proto-Germanic as the "Day of Wōđanaz" (*''Wodanesdag''), which became ''Wōdnesdæg'' in Old English, then "Wednesday" in Modern English. The term ''calque'' itself is a loanword from the French noun ("tracing, imitation, close copy"), while the word ''loanword'' is a calque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtmann
Turtmann (French: ''Tourtemagne'') is a former municipality in the district of Leuk in the canton of Valais in Switzerland. The municipalities of Turtmann and Unterems merged on 1 January 2013 into the new municipality of Turtmann-Unterems.Amtliches Gemeindeverzeichnis der Schweiz published by the Swiss Federal Statistical Office accessed 2 January 2013 History Turtmann is first mentioned in 1050 as ''Curtmannonis''. In 1210 it was mentioned as ''Torthemanei'' and ''Tortemagny''. Until 2003 Turtmann had a military airfield which was used by |
Alouette III
Alouette or alouettes may refer to: Music and literature * "Alouette" (song), a French-language children's song * Alouette, a character in ''The King of Braves GaoGaiGar'' Aerospace * SNCASE Alouette, a utility helicopter developed in France in the early 1950s which was abandoned for development of the Alouette II * Aérospatiale Alouette, a family of light helicopters manufactured by SNCASE * Aérospatiale Alouette II, a light utility helicopter built in France (1956–1975) * Aérospatiale Alouette III, a light utility helicopter built in France (1961–1985) * No. 425 Squadron RCAF, also known as Alouette Squadron and now called 425 Tactical Fighter Squadron, a squadron of CF-18 based out of Bagotville, Quebec * ''Alouette 1'', a Canadian satellite launched in 1962 * '' Alouette 2'', a Canadian satellite launched in 1965 Sport * Montreal Alouettes, a team in the Canadian Football League * Notre-Dame-de-Grace Maple Leafs, also called the Montreal Junior Alouettes, a team in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BAe Hawk
The BAE Systems Hawk is a British single-engine, jet-powered advanced trainer aircraft. It was first flown at Dunsfold, Surrey, in 1974 as the Hawker Siddeley Hawk, and subsequently produced by its successor companies, British Aerospace and BAE Systems. It has been used in a training capacity and as a low-cost combat aircraft. Operators of the Hawk include the Royal Air Force (notably the Red Arrows display team) and several foreign military operators. The Hawk is still in production in the UK and under licence in India by Hindustan Aeronautics Limited (HAL), with over 900 Hawks sold to 18 operators around the world. Development Origins In 1964, the Royal Air Force specified a requirement (Air Staff Target, AST, 362) for a new fast jet trainer to replace the Folland Gnat. The SEPECAT Jaguar was originally intended for this role, but it was soon realised that it would be too complex an aircraft for fast jet training and only a small number of two-seat versions were purchas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonnell Douglas F/A-18C Hornet
The McDonnell Douglas F/A-18 Hornet is an all-weather, twin-engine, supersonic, carrier-capable, multirole combat aircraft, designed as both a fighter and attack aircraft (hence the F/A designation). Designed by McDonnell Douglas (now part of Boeing) and Northrop (now part of Northrop Grumman), the F/A-18 was derived from the latter's YF-17 in the 1970s for use by the United States Navy and Marine Corps. The Hornet is also used by the air forces of several other nations, and formerly by the U.S. Navy's Flight Demonstration Squadron, the Blue Angels. The F/A-18 was designed to be a highly versatile aircraft due to its avionics, cockpit displays, and excellent aerodynamic characteristics, with the ability to carry a wide variety of weapons. The aircraft can perform fighter escort, fleet air defense, suppression of enemy air defenses, air interdiction, close air support, and aerial reconnaissance. Its versatility and reliability have proven it to be a valuable carrier asset, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northrop F-5
The Northrop F-5 is a family of supersonic light fighter aircraft initially designed as a privately funded project in the late 1950s by Northrop Corporation. There are two main models, the original F-5A and F-5B Freedom Fighter variants and the extensively updated F-5E and F-5F Tiger II variants. The design team wrapped a small, highly aerodynamic fighter around two compact and high-thrust General Electric J85 engines, focusing on performance and a low cost of maintenance. Smaller and simpler than contemporaries such as the McDonnell Douglas F-4 Phantom II, the F-5 cost less to procure and operate, making it a popular export aircraft. Though primarily designed for a day air superiority role, the aircraft is also a capable ground-attack platform. The F-5A entered service in the early 1960s. During the Cold War, over 800 were produced through 1972 for U.S. allies. Though at the time the United States Air Force (USAF) did not have a need for a light fighter, it did procure approx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dassault Mirage III
The Dassault Mirage III () is a family of single/dual-seat, single-engine, fighter aircraft developed and manufactured by French aircraft company Dassault Aviation. It was the first Western European combat aircraft to exceed Mach 2 in horizontal flight,"Mirage III." ''Dassault Aviation'', 18 December 2015. a feat which was achieved on 24 October 1958. In 1952, the French government issued its specification, calling for a , all-weather |
Hawker Hunter
The Hawker Hunter is a transonic British jet-powered fighter aircraft that was developed by Hawker Aircraft for the Royal Air Force (RAF) during the late 1940s and early 1950s. It was designed to take advantage of the newly developed Rolls-Royce Avon turbojet engine and the swept wing, and was the first jet-powered aircraft produced by Hawker to be procured by the RAF. On 7 September 1953, the modified first prototype broke the world air speed record for aircraft, achieving a speed of . The single-seat Hunter was introduced to service in 1954 as a manoeuvrable day interceptor aircraft, quickly succeeding first-generation jet fighters in RAF service such as the Gloster Meteor and the de Havilland Venom. The all-weather/night fighter role was filled by the Gloster Javelin. Successively improved variants of the type were produced, adopting increasingly more capable engine models and expanding its fuel capacity amongst other modifications being implemented. Hunters were also us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Venom
The de Havilland DH 112 Venom is a British post-war single-engined jet aircraft developed and manufactured by the de Havilland Aircraft Company. Much of its design was derived from the de Havilland Vampire, the firm's first jet-powered combat aircraft. The Venom entered service with the Royal Air Force (RAF), where it was used as a single-seat fighter-bomber and two-seat night fighter. A dedicated model for aerial reconnaissance was also operated by the Swiss Air Force. The Venom functioned as an interim stage between the first generation of British jet fighters – straight-wing aircraft powered by centrifugal flow engines such as the Gloster Meteor and the Vampire – and later swept wing, axial flow-engined combat aircraft, such as the Hawker Hunter and de Havilland Sea Vixen. Accordingly, the type had a relatively short service life in the RAF, being withdrawn from frontline operations by the service in 1962 as a result of the introduction of more capable designs. Howeve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland DH 100 Vampire
The de Havilland Vampire is a British jet fighter which was developed and manufactured by the de Havilland Aircraft Company. It was the second jet fighter to be operated by the RAF, after the Gloster Meteor, and the first to be powered by a single jet engine. Development of the Vampire as an experimental aircraft began in 1941 during the Second World War, to exploit the revolutionary innovation of jet propulsion. From the company's design studies, it was decided to use a single-engine, twin-boom aircraft, powered by the Halford H.1 turbojet (later produced as the Goblin). Aside from its propulsion system and twin-boom configuration, it was a relatively conventional aircraft. In May 1944 it was decided to produce the aircraft as an interceptor for the Royal Air Force (RAF). In 1946 the Vampire entered operational service with the RAF, only months after the war had ended. The Vampire quickly proved to be effective and was adopted as a replacement of wartime piston-engined fight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Generator
In electricity generation, a generator is a device that converts motive power (mechanical energy) or fuel-based power (chemical energy) into electric power for use in an external circuit. Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks. The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. Generators provide nearly all of the power for electric power grids. In addition to electromechanical designs, photovoltaic and fuel cell powered generators utilize solar power and hydrogen-based fuels, respectively, to generate electrical output. The reverse conversion of electrical energy into mechanical energy is done by an electric motor, and motors and generators have many similarities. Many motors can be mechanically driven to generate electricity; frequently they make acceptable manual generators. Terminology Electromagnetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel
A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but has since also been applied to other sources of heat energy, such as nuclear energy (via nuclear fission and nuclear fusion). The heat energy released by reactions of fuels can be converted into mechanical energy via a heat engine. Other times, the heat itself is valued for warmth, cooking, or industrial processes, as well as the illumination that accompanies combustion. Fuels are also used in the cells of organisms in a process known as cellular respiration, where organic molecules are oxidized to release usable energy. Hydrocarbons and related organic molecules are by far the most common source of fuel used by humans, but other substances, including radioactive metals, are also utilized. Fuels are contrasted with other substances or de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
