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Cierva C.30A
The Cierva C.30 is an autogyro designed by Juan de la Cierva and built under licence from the Cierva Autogiro Company by A V Roe & Co Ltd (Avro), Lioré-et-Olivier and Focke-Wulf. Design and development Before the experimental Cierva C.19 Mk V, autogyros had been controlled in the same way as fixed-wing aircraft, that is by deflecting the air flowing over moving surfaces such as ailerons, elevators and rudder. At the very low speeds encountered in autogyro flight, particularly during landing, these controls became ineffective. The experimental machine showed that the way forward was a tilting rotor hub fitted with a hanging stick extending to the pilot's cockpit with which he could change the rotor plane. This was known as direct control and was fitted to the C.30. The production variant, called C.30A in England, was preceded by several development machines. The first production design in the series was the C.30, a radial-engined autogyro with a three-blade, 37 ft (11 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cierva C
The Cierva Autogiro Company was a British firm established in 1926 to develop the autogyro. The company was set up to further the designs of Juan de la Cierva, a Spanish engineer and pilot, with the financial backing of James George Weir, a Scottish industrialist and aviator. History Juan de la Cierva's first British-built autogyro was the C.8 design. It and some other designs were built in conjunction with Avro. The pre-war Cierva C.30 proved popular. Nearly 150 were built under licence in the United Kingdom by Avro, in Germany by Focke-Wulf, and in France by Lioré-et-Olivier. On 9 December 1936, Cierva was killed in the Croydon KLM airliner accident when the aircraft in which he was a passenger crashed after taking off in fog. Dr. James Allan Jamieson Bennett was promoted to Chief Technical Officer of the company and remained in the position until leaving in 1939. In addition to making important contributions to autogyro controls while at Cierva Autogyro, Bennett carried thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spanish Seaplane Carrier Dédalo
''Dédalo'' was a steamship that was built in England in 1901 as the cargo ship ''Neuenfels'' for the German shipping company DDG „Hansa“. Spain seized her in 1918 and had her converted into a seaplane tender and balloon carrier, entering Spanish Navy service in 1922. She served in the Rif War, in which her aircraft took part in the Alhucemas landing of French and Spanish forces in 1925. She was decommissioned in 1934 and scrapped in 1940. ''Dédalo'' is Spanish for Daedalus. This is the first of two Spanish Navy ships to bear the name. The second was the former United States Navy aircraft carrier , which Spain borrowed in 1967, bought in 1972 and decommissioned in 1989. Building In 1901 Wigham Richardson built four ships with consecutive yard numbers at its Neptune Yard in Low Walker on the River Tyne for the DDG „Hansa“ shipping line. Three were sister ships: ''Argenfels'' launched in 7 January, ''Neuenfels'' launched on 19 April and ''Scharzfels'' launched on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain Home
Chain Home, or CH for short, was the codename for the ring of coastal Early Warning radar stations built by the Royal Air Force (RAF) before and during the Second World War to detect and track aircraft. Initially known as RDF, and given the official name Air Ministry Experimental Station Type 1 ( AMES Type 1) in 1940, the radar units themselves were also known as Chain Home for most of their life. Chain Home was the first early warning radar network in the world, and the first military radar system to reach operational status. Its effect on the outcome of the war made it one of the most powerful weapons of what is today known as the "Wizard War". In late 1934, the Tizard Committee asked radio expert Robert Watson-Watt to comment on the repeated claims of radio death rays and reports suggesting Germany had built some sort of radio weapon. His assistant, Arnold Wilkins, demonstrated that a death ray was impossible but suggested radio could be used for long-range detection. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Halton
Royal Air Force Halton, or more simply RAF Halton, is one of the largest Royal Air Force stations in the United Kingdom. It is located near the village of Halton near Wendover, Buckinghamshire. The site has been in use since the First World War but is due to close by December 2027. The Queen Consort is the Honorary Air Commodore of RAF Halton. History The first recorded military aviation at Halton took place in 1913 when the then owner of the Halton estate, Alfred de Rothschild, invited No 3 Squadron of the Royal Flying Corps to conduct manoeuvres on his land. Following a gentlemen's agreement between Rothschild and Lord Kitchener, the estate was used by the British Army throughout the First World War. In 1916 the Royal Flying Corps moved its air mechanics school from Farnborough, Hampshire to Halton, and in 1917, the school was permanently accommodated in workshops built by German PoWs. The estate was purchased by the British Government for the nascent Royal Air F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Duxford
Duxford Aerodrome is located south of Cambridge, within the civil parish of Duxford, Cambridgeshire, England and nearly west of the village. The airfield is owned by the Imperial War Museum (IWM) and is the site of the Imperial War Museum Duxford and the American Air Museum. Duxford Aerodrome has a Civil Aviation Authority (CAA) Ordinary Licence (Number P678) that allows flights for the public transport of passengers or for flying instruction as authorised by the licensee (Cambridgeshire County Council). The aerodrome is not licensed for night use. History Early Use The area around Duxford was first used for military purposes as part of the Army Manoeuvres of 1912. It was not until October 1917 that construction was started on a more formal airfield. The new aerodrome was built as part of a pair with a sister station at Fowlmere. The hangars built in the period correspond to a Directorate of Fortifications and Works drawing number 332/17. The drawing was signed by Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Old Sarum
Old Sarum Airfield is a grass strip airfield north-north-east of Salisbury, Wiltshire, England. The adjacent areas are a mix of vacant land, residential and industrial sites. Residential areas are to the south and east, occupying the old airfield married quarters and officers' mess, now known as Throgmorton Hall. Industrial/business units occupy a number of the World War I and World War II airfield buildings, as well as several large modern warehouses, office blocks and car showrooms, the development of which is continuing to the present day. Old Sarum is a well-preserved flying field of the World War I period, bounded by one of the most complete suites of technical and hangar buildings of the period. The site has three Grade II* listed In the United Kingdom, a listed building or listed structure is one that has been placed on one of the four statutory lists maintained by Historic England in England, Historic Environment Scotland in Scotland, in Wales, and the Nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
School Of Army Co-operation
The School of Land/Air Warfare was a Royal Air Force school based at Old Sarum in Wiltshire. Its purpose was to encourage greater co-operation between officers in the air and those on the ground. History The School was originally established at Old Sarum in 1920 as the School of Army Co-operation to provide training for air officers supporting troops on the ground. This became the School of Air Support in 1945 when its remit was broadened to cover assistance by air in amphibious operations. It was reformed again in May 1947, within No. 11 Group, as the School of Land/Air Warfare. In March 1963 it merged with the Amphibious Warfare School Marine Corps University is a professional military education university system of the United States Marine Corps. It is accredited by the Commission on Colleges of the Southern Association of Colleges and Schools to award Master's Degrees. H ... (formerly based at Poole) to form the Joint Warfare Establishment. References {{DEFAUL ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serial Number
A serial number is a unique identifier assigned incrementally or sequentially to an item, to ''uniquely'' identify it. Serial numbers need not be strictly numerical. They may contain letters and other typographical symbols, or may consist entirely of a character string. Applications of serial numbering Serial numbers identify otherwise identical individual units, thereby serving various practical uses. Serial numbers are a deterrent against theft and counterfeit products, as they can be recorded, and stolen or otherwise irregular goods can be identified. Banknotes and other transferable documents of value bear serial numbers to assist in preventing counterfeiting and tracing stolen ones. They are valuable in quality control, as once a defect is found in the production of a particular batch of product, the serial number will identify which units are affected. Some items with serial numbers are automobiles, firearms, electronics, and appliances. Smartphones and other Smar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helsinki
Helsinki ( or ; ; sv, Helsingfors, ) is the capital, primate, and most populous city of Finland. Located on the shore of the Gulf of Finland, it is the seat of the region of Uusimaa in southern Finland, and has a population of . The city's urban area has a population of , making it by far the most populous urban area in Finland as well as the country's most important center for politics, education, finance, culture, and research; while Tampere in the Pirkanmaa region, located to the north from Helsinki, is the second largest urban area in Finland. Helsinki is located north of Tallinn, Estonia, east of Stockholm, Sweden, and west of Saint Petersburg, Russia. It has close historical ties with these three cities. Together with the cities of Espoo, Vantaa, and Kauniainen (and surrounding commuter towns, including the eastern neighboring municipality of Sipoo), Helsinki forms the Greater Helsinki metropolitan area, which has a population of over 1.5 million. Of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallinn
Tallinn () is the most populous and capital city of Estonia. Situated on a bay in north Estonia, on the shore of the Gulf of Finland of the Baltic Sea, Tallinn has a population of 437,811 (as of 2022) and administratively lies in the Harju '' maakond'' (county). Tallinn is the main financial, industrial, and cultural centre of Estonia. It is located northwest of the country's second largest city Tartu, however only south of Helsinki, Finland, also west of Saint Petersburg, Russia, north of Riga, Latvia, and east of Stockholm, Sweden. From the 13th century until the first half of the 20th century, Tallinn was known in most of the world by variants of its other historical name Reval. Tallinn received Lübeck city rights in 1248,, however the earliest evidence of human population in the area dates back nearly 5,000 years. The medieval indigenous population of what is now Tallinn and northern Estonia was one of the last " pagan" civilisations in Europe to adopt Christianity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riga
Riga (; lv, Rīga , liv, Rīgõ) is the capital and largest city of Latvia and is home to 605,802 inhabitants which is a third of Latvia's population. The city lies on the Gulf of Riga at the mouth of the Daugava river where it meets the Baltic Sea. Riga's territory covers and lies above sea level, on a flat and sandy plain. Riga was founded in 1201 and is a former Hanseatic League member. Riga's historical centre is a UNESCO World Heritage Site, noted for its Art Nouveau/Jugendstil architecture and 19th century wooden architecture. Riga was the European Capital of Culture in 2014, along with Umeå in Sweden. Riga hosted the 2006 NATO Summit, the Eurovision Song Contest 2003, the 2006 IIHF Men's World Ice Hockey Championships, 2013 World Women's Curling Championship and the 2021 IIHF World Championship. It is home to the European Union's office of European Regulators for Electronic Communications (BEREC). In 2017, it was named the European Region of Gastrono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaunas
Kaunas (; ; also see other names) is the second-largest city in Lithuania after Vilnius and an important centre of Lithuanian economic, academic, and cultural life. Kaunas was the largest city and the centre of a county in the Duchy of Trakai of the Grand Duchy of Lithuania and Trakai Palatinate since 1413. In the Russian Empire, it was the capital of the Kaunas Governorate from 1843 to 1915. During the interwar period, it served as the temporary capital of Lithuania, when Vilnius was seized and controlled by Poland between 1920 and 1939. During that period Kaunas was celebrated for its rich cultural and academic life, fashion, construction of countless Art Deco and Lithuanian National Romanticism architectural-style buildings as well as popular furniture, the interior design of the time, and a widespread café culture. The city interwar architecture is regarded as among the finest examples of European Art Deco and has received the European Heritage Label. It contributed t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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