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Bristol Type 173
The Bristol Type 173 was a British twin-engine, tandem rotor transport helicopter built by the Bristol Aeroplane Company.Jackson 1973, pp. 260–263 It was designed by Raoul Hafner as a civil transport helicopter but evoked interest from the military. It did not enter production but was developed into the Bristol Belvedere which was operated by the Royal Air Force from 1961 to 1969. Design and development The Type 173 was a tandem rotor development of the earlier Type 171 Sycamore single-rotor helicopter. It used two Sycamore Leonides Major engine and rotor installations with a new fuselage. The rotor gearboxes were connected by a shaft which enabled one engine to drive both rotors if an engine failed. The first Type 173 Mk 1 registered ''G-ALBN'' made its first hovering flight on 3 January 1952 but it tended to fly backwards. After landing from a second hovering flight ground resonance developed. Modifications to the aircraft to correct these shortcomings delayed the f ... [...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] |
Alvis Leonides
The Alvis Leonides was a British air-cooled nine-cylinder radial aero engine first developed by Alvis Car and Engineering Company in 1936. Design and development Development of the nine-cylinder engine was led by Capt. George Thomas Smith-Clarke. The prototype engine, called 9ARS and which weighed 693 lb and developed 450 hp, was run in December 1936. In 1938 Airspeed (1934) Ltd lent their test pilot, George Errington, and their much rebuilt Bristol Bulldog (''K3183''), to carry out test flights. Development was continued at a reduced pace during the Second World War and following testing in an Airspeed Oxford and an Airspeed Consul (''VX587''). Alvis was ready to market the engine in 1947 as the Series 500 (502, 503 and sub-types) for aeroplanes and Series 520 for helicopters. (Most helicopter engines were direct drive — no reduction gearbox — with a centrifugal clutch and fan cooling). The first production use was the Percival Prince, which flew in Ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tandem Rotor Helicopters
Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction. The original use of the term in English was in ''tandem harness'', which is used for two or more draft horses, or other draft animals, harnessed in a single line one behind another, as opposed to a pair, harnessed side by side, or a team of several pairs. The tandem harness allows additional animals to provide pulling power for a vehicle designed for a single animal. The English word ''tandem'' derives from the Latin adverb , meaning ''at length'' or ''finally''. It is a word play, using the Latin phrase (referring to time, not position) for English "at length, lengthwise". Tandem bicycles are named for their tandem seating, a more common arrangement than side-by-side "sociable" seating. ''Tandem'' can also be used more generally to refer to any group of persons or objects working together, not necessarily in line. Automo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Aeroplane Company Aircraft
Bristol () is a city, ceremonial county and unitary authority in England. Situated on the River Avon, it is bordered by the ceremonial counties of Gloucestershire to the north and Somerset to the south. Bristol is the most populous city in South West England. The wider Bristol Built-up Area is the eleventh most populous urban area in the United Kingdom. Iron Age hillforts and Roman villas were built near the confluence of the rivers Frome and Avon. Around the beginning of the 11th century, the settlement was known as (Old English: 'the place at the bridge'). Bristol received a royal charter in 1155 and was historically divided between Gloucestershire and Somerset until 1373 when it became a county corporate. From the 13th to the 18th century, Bristol was among the top three English cities, after London, in tax receipts. A major port, Bristol was a starting place for early voyages of exploration to the New World. On a ship out of Bristol in 1497, John Cabot, a Venetian, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1950s British Helicopters
Year 195 ( CXCV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known 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 annexed the Syrian cities of Edessa and Nisibis. Severus re-establish his head ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerospace Bristol
Aerospace Bristol is an aerospace museum at Filton, to the north of Bristol, England, U.K. The project is run by the Bristol Aero Collection Trust and houses a varied collection of exhibits, including Concorde ''Alpha Foxtrot'', the final Concorde to be built and the last to fly. The Museum The museum is situated on Filton Airfield and the main exhibition is housed in a First World War Grade II listed hangar, A second hanger from the same era is used as the workshop and storage area for items undergoing restoration. This building is also listed Grade II. with Concorde situated in a new, purpose-built hangar. The exhibition covers over 100 years of aviation history through two world wars, exploring the role of aircraft in these conflicts, through the drama and technological advances of the space race and on to the modern day. The Concorde Trust, 2007 to 2012 The Concorde Trust was formed in 2007 and produced applications for support for a new museum that would house one Conco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kemble Airport
Cotswold Airport (formerly Kemble Airfield) is a private general aviation airport, near the village of Kemble, Gloucestershire, Kemble in Gloucestershire, England. Located southwest of Cirencester, it was built as a Royal Air Force (RAF) station and was known as RAF Kemble. The Red Arrows aerobatics team was based there until 1983. Today it is used for the storage and recycling of retired airliners, as well as flying schools, clubs, and industry. Cotswold Airport is located clear of controlled airspace, allowing free movement for training aircraft. It is also centrally positioned between Cheltenham, Gloucester and Swindon. The nearest railway station is at Kemble railway station, Kemble. History RAF Kemble Construction work for RAF Kemble began in 1936, and the first operational unit to arrive at the station was No. 5 Maintenance Unit RAF, No. 5 Maintenance Unit on 22 June 1938. In 1940, No. 4 Service Ferry Pool moved to the station from Cardiff, and Kemble became one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Museum Cosford
The Royal Air Force Museum Cosford, located in Cosford in Shropshire, is a free (currently, 2022) museum dedicated to the history of aviation and the Royal Air Force in particular. The museum is part of the Royal Air Force Museum, a non-departmental public body sponsored by the Ministry of Defence and also a registered charity. The museum is spread over two sites in England; the other site is at the Royal Air Force Museum London at Colindale (near Hendon) in north London. History The London museum was officially opened at the Colindale (then part of Hendon) London site on 15 November 1972 by Queen Elizabeth II. The hangars housed just 36 aircraft at opening. Over the years, the collection increased and aircraft were stored at RAF stations around the country when they were not on display to the public. On 1 May 1979, the Cosford site was opened at RAF Cosford, one of the RAF stations which had been used to store the museum's collection of aircraft. On opening, the museum initi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sikorsky S-58
The Sikorsky H-34 "Choctaw" (company designation S-58) is an American piston-engined military helicopter originally designed by Sikorsky as an anti-submarine warfare (ASW) aircraft for the United States Navy. It has seen extended use when adapted to turbine power by the British licensee as the Westland Wessex and Sikorsky as the later S-58T. H-34s served, mostly as medium transports, on every continent with the armed forces of 25 countries. It saw combat in Algeria, the Dominican Republic, Nicaragua, and throughout Southeast Asia. Other uses included saving flood victims, recovering astronauts, fighting fires, and carrying presidents. It was the last piston-engined helicopter to be operated by the United States Marine Corps, having been replaced by turbine-powered types such as the UH-1 Huey and CH-46 Sea Knight. A total of 2,108 H-34s were manufactured between 1953 and 1970. Development The Sikorsky S-58 was developed as a lengthened and more powerful version of the Sik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westland Wessex
The Westland Wessex is a British-built turbine-powered development of the Sikorsky H-34 (in US service known as Choctaw). It was developed and produced under licence by Westland Aircraft (later Westland Helicopters). One of the main changes from Sikorsky's H-34 was the replacement of the piston-engine powerplant with a turboshaft engine. Early models were powered by a single Napier Gazelle engine, while later builds used a pair of de Havilland Gnome engines. The Wessex was initially produced for the Royal Navy (RN) and later for the Royal Air Force (RAF); a limited number of civilian aircraft were also produced, as well as some export sales. The Wessex operated as an anti-submarine warfare and utility helicopter; it is perhaps best recognised for its use as a search and rescue (SAR) helicopter. The type entered operational service in 1961, and had a service life in excess of 40 years before being retired in Britain. Design and development In 1956, an American-built S-58 wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napier Gazelle
The Napier Gazelle is a turboshaft helicopter engine that was manufactured by D. Napier & Son in the mid-1950s. In 1961 production was nominally transferred to a joint venture with Rolls-Royce called Napier Aero Engines Limited."ENGLISH ELECTRIC-ROLLS ROYCE Napier Aero Engines Ltd." Times ondon, England1 June 1961: 24. The Times Digital Archive. Web. 30 Aug. 2016. But the venture closed two years later. Hansard, 8 March 1963 vol 673 cc921-32 Variants ;NGa.1:Emergency rating at 20,400 rpm, 1 hour rating at 19,800 rpm, Max continuous rating at 19,000 rpm ;NGa.2:Emergency rating at 20,400 rpm ;NGa.2(R): ;NGa.2 series 2: ;NGa.3:Emergency rating at 20,400 rpm[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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