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John Carver Meadows Frost
John Carver Meadows Frost (1915 in Walton-on-Thames, England – 9 October 1979 in Auckland, New Zealand) was a British aircraft designer. His primary contributions centred on pioneering supersonic British experimental aircraft and as the chief designer who shepherded Canada's first jet fighter project, the Avro Canada CF-100, to completion. He was also the major force behind the Avro Canada VTOL aircraft projects, particularly as the unheralded creator of the Avro Canada flying saucer projects. Early life Frost's introduction to aviation had begun when he was a teenager. At school in the early 1930s his Latin teacher A. Maitland Emmet had taken him up in a Bristol Fighter. John Frost had been born in Walton-on-Thames near London in 1915 and had shown an early interest in the sciences at St Edward's School, Oxford, where he graduated with honours in mathematics, chemistry and physics. Aviation career First designs Frost began his aeronautical career in the 1930s as an app ... [...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] |
Slingsby Hengist
The Slingsby Hengist was a British military glider designed and built by Slingsby Sailplanes Ltd. Like other British troop carrying gliders in the Second World War, it was named after military figures whose name began with H, in this case the Jute invader Hengist. Design and development The use of assault gliders by the British was prompted by the use by Germany of the DFS 230 transport glider, which was first used in May 1940 to land assault troops on the Eben Emael fort in Belgium.Simons 1996, p. 99. Their advantage compared to parachute assault was that the troops landed in one place, rather than being dispersed. The Slingsby T.18 Hengist was designed by John "Jack" Frost. It was a 15-seat glider designed to meet Specification X.25/40 (in accordance to O.R.98), issued in February 1941. The specification was issued in case sufficiently powerful tugs were not available for the larger Airspeed Horsa.Ellison 1971, p. 188. Four prototypes were ordered in late 1940, the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of STOL (Short TakeOff and Landing) or STOVL (Short TakeOff and Vertical Landing) aircraft cannot perform without a runway. In 1942, the Sikorsky R-4 became the first helicopter to reach full-scale production.Munson 1968.Hirschberg, Michael J. and David K. Dailey"Sikorsky". ''US and Russian Helicopter Development in the 20th Century'', American Helicopter Society, International. 7 July 2000. Although most earlier designs used more than one main rotor, the configuration of a single main rotor accompanied by a vertical anti-torque tail rotor (i.e. unicopter, not to be confused with the single-blade monocopter) has become the most comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hatfield, Hertfordshire
Hatfield is a town and civil parish in Hertfordshire, England, in the borough of Welwyn Hatfield. It had a population of 29,616 in 2001, and 39,201 at the 2011 Census. The settlement is of Saxon origin. Hatfield House, home of the Marquess of Salisbury, forms the nucleus of the old town. From the 1930s when de Havilland opened a factory until the 1990s when British Aerospace closed it, aircraft design and manufacture employed more people there than any other industry. Hatfield was one of the post-war New Towns built around London and has much modernist architecture from the period. The University of Hertfordshire is based there. Hatfield lies north of London beside the A1(M) motorway and has direct trains to London King's Cross railway station, Finsbury Park and Moorgate. There has been a strong increase in commuters who work in London moving into the area. In 2022, TV property expert Phil Spencer named Hatfield as the second best place to live for regular commuters to Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Derry
Squadron leader John Douglas Derry DFC (5 December 1921 – 6 September 1952) was a British test pilot who is believed to be the first Briton to have exceeded the speed of sound in flight. Early life and education Derry was born in Cairo, Egypt, where his father, Douglas Derry, was Professor of Anatomy at Royal Egyptian University. Douglas Derry was the first anatomist to be involved in the examination of Tutankhamun's mummy, after the discovery of the tomb in 1925. John Derry attended Dragon School in Oxford and Charterhouse School. In his youth, Derry developed a keen interest in bird watching and often attended motor races. Military career Shortly after the outbreak of World War II, he left school to enlist as a wireless operator and air gunner in the Royal Air Force. In 1942 he received a commission and the following year trained (in Canada) as a pilot. His operational career began late in 1944 when he joined 182 Squadron, flying Hawker Typhoons on close support to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoffrey De Havilland Jr
Geoffrey Raoul de Havilland Jr., OBE (18 February 1910 – 27 September 1946) was a British test pilot. He was the son of Geoffrey de Havilland, the English aviation pioneer and aircraft designer. Early life Geoffrey Raoul de Havilland was born on 18 February 1910 at Crux Easton, Hampshire, the son of Sir Geoffrey de Havilland, founder of the de Havilland Aircraft Company, and his wife, Louise (1881–1949). Geoffrey was the eldest of three children, the others being Peter Jason (born in 1913) and John (born in 1918).. He first flew at the age of 8 months, carried in his mother's arms in a plane piloted by his father. At the age of 6, he was flying as a passenger with his father at Hendon in a D.H.6. While he was at Stowe School from 1924 to 1927, his parents would visit him in a Gipsy Moth, landing in a field in the school grounds. In 1928, he joined the de Havilland company as a premium apprentice, working in the engineering department, with his last two years spent in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland DH 108
The de Havilland DH 108 "Swallow" was a British experimental aircraft designed by John Carver Meadows Frost in October 1945. The DH 108 featured a tailless, swept wing with a single vertical stabilizer, similar to the layout of the wartime German Messerschmitt Me 163 Komet. Initially designed to evaluate swept wing handling characteristics at low and high subsonic speeds for the proposed early tailless design of the Comet airliner, three examples of the DH 108 were built to Air Ministry specifications E.18/45. With the adoption of a conventional tail for the Comet, the aircraft were used instead to investigate swept wing handling up to supersonic speeds. All three prototypes were lost in fatal crashes. Design and development Employing the main fuselage section and engine of the de Havilland Vampire mated to a longer fuselage with a single fin and swept wings, the de Havilland DH 108 was proposed in 1944 as an aerodynamic test bed for tailless designs, particularly the DH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Comet
The de Havilland DH.106 Comet was the world's first commercial jet airliner. Developed and manufactured by de Havilland in the United Kingdom, the Comet 1 prototype first flew in 1949. It featured an aerodynamically clean design with four de Havilland Ghost turbojet engines buried in the wing roots, a pressurised cabin, and large square windows. For the era, it offered a relatively quiet, comfortable passenger cabin and was commercially promising at its debut in 1952. Within a year of entering airline service, problems started to emerge, three Comets being lost within twelve months in highly publicised accidents, after suffering catastrophic in-flight break-ups. Two of these were found to be caused by structural failure resulting from metal fatigue in the airframe, a phenomenon not fully understood at the time; the other was due to overstressing of the airframe during flight through severe weather. The Comet was withdrawn from service and extensively tested. Design and cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoffrey De Havilland
Captain Sir Geoffrey de Havilland, (27 July 1882 – 21 May 1965) was an English aviation pioneer and aerospace engineer. The aircraft company he founded produced the Mosquito, which has been considered the most versatile warplane ever built,Davenport-Hines, Richard. "Havilland, Sir Geoffrey de (1882–1965)." ''Oxford Dictionary of National Biography''. Ed. H.C.G. Matthew and Brian Harrison. Oxford: Oxford University Press, 2004Oxford University and his Comet was the first jet airliner to go into production. Early life Born at Magdala House, Terriers, High Wycombe, Buckinghamshire, de Havilland was the second son of The Reverend Charles de Havilland (1854–1920) and his first wife, Alice Jeannette (née Saunders) (1854–1911). He was educated at Nuneaton Grammar School, St Edward's School, Oxford and the Crystal Palace School of Engineering (from 1900 to 1903). Upon graduating from engineering training, de Havilland pursued a career in automotive engineering, building ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DH 108 Swallow Tg283
DH, Dh, dh, or dH may refer to: Places * DH postcode area, in the United Kingdom for the area of Durham and surrounding towns * Diamond Head, Hawaii, a volcanic tuff cone on Oʻahu Organisations * D+H, a Canadian financial services company * Department of Health (United Kingdom), a department of the UK government * DH Press, the Dark Horse Comics imprint that publishes novels * Deccan Herald, an Indian newspaper Science and technology * Denavit–Hartenberg parameters, a type of robotics convention * Dermatitis herpetiformis, a skin disease * DH register, the high byte of a DX register in x86-compatible microprocessors * Diffie-Hellman key exchange (D-H), a specific method of securely exchanging cryptographic keys over a public channel * District heating, a method of heating multiple buildings from a central location * Doubled haploidy, a genetic status * Deuterium:protium (D:H), a ratio in deuterium-depleted water *°dH, deutsche Härte, a unit of Hard water, water hardness * Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Vampire
The de Havilland Vampire is a British jet fighter which was developed and manufactured by the de Havilland, de Havilland Aircraft Company. It was the second jet fighter to be operated by the Royal Air Force, RAF, after the Gloster Meteor, and the first to be powered by a single jet propulsion, 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 de Havilland Goblin, 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 aircraft, 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 quick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Havilland Hornet
The de Havilland DH.103 Hornet, developed by de Havilland, was a fighter aircraft driven by two piston engines. It further exploited the wooden construction techniques that had been pioneered by the de Havilland Mosquito. Development of the Hornet had started during the Second World War as a private venture. The aircraft was to conduct long range fighter operations in the Pacific Theatre against the Empire of Japan but the war ended before the Hornet reached operational squadron status. The Hornet entered service with RAF Fighter Command where it equipped several day fighter units and was commonly stationed in the British mainland. It saw combat in the Far East, being used as a strike fighter as part of the British military action taken during the Malayan Emergency. A naval carrier-capable version, the Sea Hornet, had been envisaged early on and was procured by the Fleet Air Arm of the Royal Navy. Development Origins In the autumn of 1941, de Havilland found that it had the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
