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Valmet L-70 Vinka
The Valmet L-70 ''Vinka'' is a Finnish-designed piston-powered military basic trainer aircraft of the 1970s. A production run of 30 aircraft were built for the Finnish Air Force in the early 1980s, and although the type was not exported, it formed the basis of the turboprop-powered Aermacchi M-290 RediGO. Development and design The Finnish state-owned manufacturing conglomerate Valmet Oy began design work in September 1970 on a replacement for the Saab Safirs then in use with the Finnish Air Force as basic trainers. Valmet received an order from the Finnish Air Force for further development of the ''LEKO-70'' (''Lentokone'' (Aeroplane) 1970) in March 1973.''Air International'' December 1979, p. 266. The first prototype made its maiden flight from Halli Airport for the first time on 1 July 1975.''Air International'' December 1979, p. 265. The aircraft is a low-winged tractor monoplane of all-metal construction and with a fixed nosewheel undercarriage. It is powered by a single 2 ... [...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] |
Valmet L-70 Miltrainer
Valmet Oyj is a Finnish company and a developer and supplier of technologies, automation systems and services for the pulp, paper and energy industries. Valmet has over 200 years of history as an industrial operator. Formerly owned by the State of Finland, Valmet was reborn in December 2013 with the demerger of the pulp, paper and power businesses from Metso Corporation. Valmet's services include maintenance outsourcing, mill and power plant improvements, and spare parts. The company provides technology for pulp, tissue, board and paper mills and bioenergy plants. Valmet has operations in more than 40 countries and it employs about 17,000 people. Its headquarters are located in Espoo, and it is listed on the Nasdaq Helsinki. In 2021, Valmet's net sales totaled €3.9 billion. History Historical products During its history, Valmet has made ships, trains, aeroplanes, tractors, clocks and weapons, as described in the list of Valmet products. Roots in the 18th century Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tikkakoski
Tikkakoski is a northernmost residential area of Jyväskylä, Finland, about north of the city centre. It has a population of 6,000. The Jyväskylä Airport, Aviation Museum of Central Finland, and a Finnish Air Force base, with the FAF Headquarters, the Finnish Air Force Academy, Finnish Air Force, Air Force Academy, Finnish Air Force Band, Air Force Band, and the C4I Materiel Command, are all located in Tikkakoski. Gallery File:Jyväskylä airport apron.jpg, A view of the Jyväskylä Airport File:Jyväskylä airport terminal.jpg, Jyväskylä Airport Terminal in Tikkakoski File:Tikkakoski factory 1930s.jpg, Tikkakoski (company), Oy Tikkakoski Ab gun factory in the 1930s File:Gourdou-Leseurre GL-22 070707.JPG, Gourdou-Leseurre fighter aircraft in the Aviation Museum of Central Finland References External links Neighbourhoods of Jyväskylä {{WesternFinland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Academy, Finnish Air Force
The Air Force Academy ( fi, Ilmasotakoulu, abbr. ''ILMASK''; sv, Luftkrigsskolan) is located at Tikkakoski in Jyväskylä, Finland. The primary mission of the Air Force Academy is to train warfighting airmen who can carry out their missions even under most strenuous conditions. This includes conscripts and active duty personnel and special forces such as pilots, aircraft and helicopter mechanics, and air surveillance controllers. The Air Force Academy also trains conscripts for general military operations. While training is primarily geared to serve air base functions, a number of conscripts are trained for jobs in the control and reporting centres. The Air Force Academy comprises a headquarters and a Communication Systems Training Flight, Aircraft and Weapon Systems Training Flight, Reserve Non-Commissioned Officer Training School, and a Reserve Officer Training School. Initial pilot training was formerly given in the Air Force Academy in Kauhava, but basic training was branched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L-90 Redigo
The Valmet L-90 Redigo is a turboprop-powered military basic trainer aircraft and liaison aircraft, a development of Valmet's earlier training aircraft for the Finnish Air Force. The L-90 was the last military aircraft designed and produced in Finland. Design and development The prototype, a modified L-80, first flew on February 12, 1985. A second prototype, powered by a Turbomeca TP319 turboprop, was destroyed in an accident in August 1988. A total of 29 production aircraft plus the 2 prototypes were produced. Aermacchi purchased the manufacturing rights in 1996 but never returned the aircraft to production. The aircraft is of conventional configuration, with retractable tricycle gear and a low wing. The student and instructor sit side-by-side. As is typical with many military trainers, it can also carry light armament for weapons training, or potentially, for use in a close-support role. The Finnish Air Force only used the L-90 as a liaison aircraft. Operators ;: Eritrean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allison 250
The Allison Model 250, now known as the Rolls-Royce M250, (US military designations T63 and T703) is a highly successful turboshaft engine family, originally developed by the Allison Engine Company in the early 1960s. The Model 250 has been produced by Rolls-Royce since it acquired Allison in 1995. Development In 1958, the Detroit Diesel Allison division of General Motors was chosen by the US Army to develop a new light turbine engine to power a "Light Observation Aircraft" (LOA), to replace the Cessna O-1A Bird Dog. At this stage the US Army was unsure whether to have a fixed- or rotary-wing aircraft, so Allison was instructed to consider both applications. Design studies undertaken considered a wide range of possible mechanical configurations for the turboprop/turboshaft. These studies culminated in the testing of the first prototype engine, designated YT63-A-3, in April 1959. In 1960, the US Army settled for a rotary wing platform. The YT63-A-3 first flew in a variant of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Aerospace 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] |
Kauhava
Kauhava is a town and municipality of Finland. It is part of the Southern Ostrobothnia region, northwest of Helsinki and by the main railway from Helsinki to Oulu. The town has a population of () and covers an area of of which is water. The population density is . The popular amusement park, PowerPark, is located in Alahärmä, Kauhava. The municipality is unilingually Finnish. Geography The surrounding country is flat and well suited to agriculture, alternating between fields and forests. The town probably takes its name from the small river which passes through it. History Kauhava was the home of the Finnish Training Air Wing from 1929 until the end of 2014. The surrounding municipalities of Alahärmä, Kortesjärvi and Ylihärmä were consolidated with Kauhava on 1 January 2009. Knife making A traditional industry in Kauhava is knife making, and many Finns recognize the name of this small town because of knives made there. At one time, as many as five different knife-m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuorevesi
Kuorevesi is a former municipality in Finland. It was part of the Pirkanmaa region in western Finland. In the year 2001 it was consolidated into the town of Jämsä in the Central Finland region. The name of the municipality came from the Lake Kuorevesi that is situated in its area. History The name of Kuorevesi is derived from the lake's name, which literally means "smelt water". Kuorevesi was first mentioned in 1449 as ''Kohrevesi'', though this may have referred to the lake. The area was a part of the Kangasala parish until 1540 and Orivesi until 1640, after which it became a part of the Längelmäki parish separated from Orivesi in the same year. Kuorevesi acquired its first proper church in 1683. Kuorevesi became a separate municipality in 1873 and a parish in 1881. It remained independent until 2001, when it was merged into Jämsä. People born in Kuorevesi * Nestori Toivonen (1865 – 1927) * Mimmi Haapasalo (1881 – 1970) *Liisa Rantalaiho Liisa Rantalaiho (born Ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston Engine
A reciprocating engine, also often known as a piston engine, is typically a heat engine that uses one or more reciprocating pistons to convert high temperature and high pressure into a rotating motion. This article describes the common features of all types. The main types are: the internal combustion engine, used extensively in motor vehicles; the steam engine, the mainstay of the Industrial Revolution; and the Stirling engine for niche applications. Internal combustion engines are further classified in two ways: either a spark-ignition (SI) engine, where the spark plug initiates the combustion; or a compression-ignition (CI) engine, where the air within the cylinder is compressed, thus heating it, so that the heated air ignites fuel that is injected then or earlier.''Thermodynamics: An Engineering Approach'' by Yunus A. Cengal and Michael A. Boles Common features in all types There may be one or more pistons. Each piston is inside a cylinder, into which a gas is intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flat-four
A flat-four engine, also known as a horizontally opposed-four engine, is a four-cylinder piston engine with two banks of cylinders lying on opposite sides of a common crankshaft. The most common type of flat-four engine is the boxer-four engine, each pair of opposed pistons moves inwards and outwards at the same time. A boxer-four engine has perfect primary and secondary balance, however, the two cylinder heads means the design is more expensive to produce than an inline-four engine. Boxer-four engines have been used in cars since 1897, especially by Volkswagen and Subaru. They have also occasionally been used in motorcycles and frequently in aircraft. Cessna and Piper use flat four engines from Lycoming and Continental in the most common civil aircraft in the world - the Cessna 172, and Piper Cherokee, while many ultralight and LSA planes use versions of the Rotax 912. Design Most flat-four engines are designed so that each pair of opposing pistons moves inwards and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lycoming O-360
The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines. Engines in the O-360 series produce between 145 and 225 horsepower (109 to 168 kW), with the basic O-360 producing 180 horsepower. The engine family has been installed in thousands of aircraft, including the Cessna 172, Piper Cherokee/Archer, Grumman Tiger, and many home-built types. It has a factory rated time between overhaul (TBO) of 2000 hours or twelve years. O-360 family engines are also widely used in airboats, most notably in the Hurricane Aircats used by the US Army during the Vietnam War. The first O-360 certified was the A1A model, certified on 20 July 1955 to United States CAR 13 effective March 5, 1952 as amended by 13-1 and 13-2. The Lycoming IO-390 is an O-360 which has had its cylinder bore increased by , developing . Series The O-360 family of engines comprises 167 different models with 12 different prefixes. All have a displa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
