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De Havilland DH.71 Tiger Moth
The de Havilland DH.71 Tiger Moth was a British single-seat monoplane, designed to research high-speed flight and to test replacement engines for the Cirrus. Only two were built. Design and development It was a low-wing monoplane based on the earlier Moth biplanes with a stressed plywood covering and the cockpit designed around its test pilot, Hubert Broad, to make it as streamlined as possible: this resulted in the fuselage sides being sloped outwards to accommodate his shoulders. The Tiger Moth had a fixed conventional landing gear with a tail skid. The first aircraft built ( registration ''G-EBQU'') first flew from Stag Lane Aerodrome on 24 June 1927 and was fitted with an ADC Cirrus II engine to check its handling characteristics. This was then replaced with Major Halford's prototype engine, by then named the Gipsy. The second example, ''G-EBRV'', was fitted with a Cirrus engine and first flew on 28 July 1927. Operational history Both aircraft were entered for the 192 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling 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 Magazine, 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 outsi ... [...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, 39,201 at the 2011 census, and 41,265 at the 2021 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 Act 1946, New Towns built around London and has much International Style (architecture), 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, London St Pancras railway station, Finsbury Park station, Finsbury Park and Moorgate station, Moorgate. There has been a strong increase in commuters who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft First Flown In 1927
An aircraft ( aircraft) is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downward thrust from its engines. Common examples of aircraft include airplanes, rotorcraft (including helicopters), airships (including blimps), gliders, paramotors, and hot air balloons. Part 1 (Definitions and Abbreviations) of Subchapter A of Chapter I of Title 14 of the U. S. Code of Federal Regulations states that aircraft "means a device that is used or intended to be used for flight in the air." The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called ''aeronautics.'' Crewed aircraft are flown by an onboard pilot, whereas unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-wing Aircraft
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplane (aeronautics), multiplanes, which have multiple wings. A monoplane has inherently the highest efficiency and lowest drag of any wing configuration and is the simplest to build. However, during the early years of flight, these advantages were offset by its greater weight and lower manoeuvrability, making it relatively rare until the 1930s. Since then, the monoplane has been the most common form for a fixed-wing aircraft. Characteristics Support and weight The inherent efficiency of the monoplane is best achieved in the cantilever wing, which carries all structural forces internally. However, to fly at practical speeds the wing must be made thin, which requires a heavy structure to make it strong and stiff enough. External Bracing (aeronautics), bracing can be used to improve structural efficiency, reducing weight and cost. For a wing of a given size, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racing Aircraft
Air racing is a type of motorsport that involves airplanes or other types of aircraft that compete over a fixed course, with the winner either returning the shortest time, the one to complete it with the most points, or to come closest to a previously estimated time. History The first 'heavier-than-air' air race was held on 23 May 1909 in aviation, 1909 - the Prix de Lagatinerie, at the Port-Aviation aerodrome (often called "Juvisy Airfield") in Viry-Châtillon south of Paris, France. Four pilots entered the race, two started, but nobody completed the full race distance; though this was not unexpected, as the rules specified that whoever travelled furthest would be the winner if no-one completed the race. Léon Delagrange, who covered slightly more than half of the ten laps was declared the winner. Some other minor events were held before the ''Grande Semaine d'Aviation de la Champagne'' in 22–29 August 1909 at Reims, France, Reims, France. This was the first major intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of De Havilland Aircraft
This is a list of aircraft produced or proposed by Geoffrey de Havilland or designed at the de Havilland, de Havilland Aircraft Company from its founding in 1920 until its purchase by (and integration into) the Hawker Siddeley Group in 1959. The aircraft are ordered by de Havilland model number; the numbers started with de Havilland's employment at the Airco company as chief designer. Although Airco ''built'' the planes, their design was owned by de Havilland and when de Havilland started his own company, he continued the numbering. The numbering sequence continued for later designs of de Havilland's aircraft company, even if they were designed by a factory team with little input from de Havilland himself. The DH.89, for example, was the 89th de Havilland design. The designs DH.121 and DH.125 which were under development when de Havilland lost its separate identity under Hawker Siddeley, retained their numbering and were produced as the Hawker Siddeley Trident, Hawker Siddeley H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DH 71 3-view NACA Aircraft Circular 57
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 * Dadra and Nagar Haveli and Daman and Diu, a union territory of India (ISO 3166-2) 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 * Dundonald House, a governmental building in Northern Ireland 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 ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airstrike
An airstrike, air strike, or air raid is an offensive operation carried out by aircraft. Air strikes are delivered from aircraft such as blimps, balloons, fighter aircraft, attack aircraft, bombers, attack helicopters, and drones. The official definition includes all sorts of targets, including enemy air targets, but in popular usage the term is usually narrowed to a tactical (small-scale) attack on a ground or naval objective as opposed to a larger, more general attack such as carpet bombing. Weapons used in an airstrike can range from direct-fire aircraft-mounted cannons and machine guns, rockets and air-to-surface missiles, to various types of aerial bombs, glide bombs, cruise missiles, ballistic missiles, and even directed-energy weapons such as laser weapons. In close air support, air strikes are usually controlled by trained observers on the ground for coordination with ground troops and intelligence in a manner derived from artillery tactics. History Beginnings Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hertfordshire
Hertfordshire ( or ; often abbreviated Herts) is a ceremonial county in the East of England and one of the home counties. It borders Bedfordshire to the north-west, Cambridgeshire to the north-east, Essex to the east, Greater London to the south and Buckinghamshire to the west. The largest settlement is Watford, and the county town is Hertford. The county has an area of and had a population of 1,198,800 at the 2021 census. After Watford (131,325), the largest settlements are Hemel Hempstead (95,985), Stevenage (94,470) and the city of St Albans (75,540). For local government purposes Hertfordshire is a non-metropolitan county with ten districts beneath Hertfordshire County Council. Elevations are higher in the north and west, reaching more than in the Chilterns near Tring. The county centres on the headwaters and upper valleys of the rivers Lea and the Colne; both flow south and each is accompanied by a canal. Hertfordshire's undeveloped land is mainly agricultural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hucknall
Hucknall () is a market town in the Ashfield, Nottinghamshire, Ashfield district of Nottinghamshire, England, north of Nottingham, southeast of Kirkby-in-Ashfield, from Mansfield and south of Sutton-in-Ashfield. Hucknall is on the west bank of the River Leen, Leen Valley, on land which rises from the River Trent, Trent Valley in the south and extends northwards to Kirkby-in-Ashfield. The Whyburn Brook flows through the town centre. Farleys Brook marks its southern boundary. Due to the mass amount of housing and industrial estates along the southside of the town. Hucknall is contiguous with the wider City of Nottingham with the suburbs of Bulwell and Bestwood Village to the south and southeast. The town's highest point is Long Hill, at above sea level, with views over the city and Trent Valley, which descends to 22–24 metres (72–79 ft) Above Ordnance Datum, AOD, flowing just beyond most of the city centre. The town is surrounded by farmland or parkland. To the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
