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Bristol Bulldog
The Bristol Bulldog is a British Royal Air Force single-seat biplane Fighter aircraft, fighter designed during the 1920s by the Bristol Aeroplane Company. More than 400 Bulldogs were produced for the RAF and overseas customers, and it was one of the most famous aircraft used by the RAF during the inter-war period. Background The design of the Bulldog was the outcome of a series of design studies for fighters undertaken by Frank Barnwell during the 1920s. In 1924 Barnwell had started work on a fighter powered by the Rolls-Royce Falcon to meet the requirements of List of Air Ministry specifications, specification F.17/24. The project was shelved since Bristol preferred to use its own engine designs, but was revived in 1926 when Barnwell started work on a design, designated the Bristol 102, to meet either F.9/26 for a day-and-night fighter or N.21/26 for a shipborne fighter. The Type 105 designation was first applied to a subsequent proposal for another aircraft to meet F.9/26 ... [...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] |
Prototype
A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and Software prototyping, software programming. A prototype is generally used to evaluate a new design to enhance precision by system analysts and users. Prototyping serves to provide specifications for a real, working system rather than a theoretical one. Physical prototyping has a long history, and paper prototyping and virtual prototyping now extensively complement it. In some design workflow models, creating a prototype (a process sometimes called materialization) is the step between the Formal specification, formalization and the evaluation of an idea. A prototype can also mean a typical example of something such as in the use of the derivation prototypical. This is a useful term in identifying objects, behaviours and concepts which are considered the accepted norm and is analogous with terms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudan
Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopia to the southeast, and South Sudan to the south. Sudan has a population of 50 million people as of 2024 and occupies 1,886,068 square kilometres (728,215 square miles), making it Africa's List of African countries by area, third-largest country by area and the third-largest by area in the Arab League. It was the largest country by area in Africa and the Arab League until the 2011 South Sudanese independence referendum, secession of South Sudan in 2011; since then both titles have been held by Algeria. Sudan's capital and most populous city is Khartoum. The area that is now Sudan witnessed the Khormusan ( 40000–16000 BC), Halfan culture ( 20500–17000 BC), Sebilian ( 13000–10000 BC), Qadan culture ( 15000–5000 BC), the war of Jebel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abyssinia Crisis
The Abyssinia Crisis, also known in Italy as the Walwal incident, was an international crisis in 1935 that originated in a dispute over the town of Walwal, which then turned into a conflict between Fascist Italy and the Ethiopian Empire (then commonly known as "Abyssinia"). The League of Nations ruled against Italy and voted for economic sanctions, but they were never fully applied. Italy ignored the sanctions, quit the League and ultimately annexed and occupied Abyssinia after it had won the Second Italo-Ethiopian War. The crisis is generally regarded as having discredited the League. Walwal incident The Italo–Ethiopian Treaty of 1928 stated that the border between Italian Somaliland and Ethiopia was 21 leagues from and parallel to the Banaadir coast (approximately ). In 1930, Italy built a fort at the Walwal oasis in the eastern Ogaden, well beyond the 21-league limit. The fort was in a boundary zone between the nations, which was not well defined, and is now about insi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Bulldog REJS
Bristol () is a City status in the United Kingdom, cathedral city, unitary authority area and ceremonial county in South West England, the most populous city in the region. Built around the River Avon, Bristol, River Avon, it is bordered by the ceremonial counties of Gloucestershire to the north and Somerset to the south. The county is in the West of England combined authority area, which includes the Greater Bristol area (List of urban areas in the United Kingdom, eleventh most populous urban area in the United Kingdom) and nearby places such as Bath, Somerset, Bath. Bristol is the second largest city in Southern England, after the capital London. Iron Age hillforts and Roman villas were built near the confluence of the rivers River Frome, Bristol, Frome and Avon. Bristol received a royal charter in 1155 and was historic counties of England, historically divided between Gloucestershire and Somerset until 1373 when it became a county corporate. From the 13th to the 18th centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Upavon
Royal Air Force Upavon, or more simply RAF Upavon, is a former Royal Air Force station in Wiltshire, England. It was a grass airfield, military flight training school, and administrative headquarters of the Royal Air Force. The station opened in 1912 and closed in 1993, when it was transferred to the British Army and became known as Trenchard Lines. The station motto was ''In Principio Et Semper'', and translated from Latin means "In the Beginning and Always". History Origins and construction Construction began on 19 June 1912, on some training gallops, on an elevated site about east of Upavon village, near the edge of the Salisbury Plain, in the English county of Wiltshire. Upavon Airfield was originally created for pilots of the military and naval wings of the newly formed Royal Flying Corps (RFC), and became home to the Army Central Flying School. Captain Godfrey M Paine, RN, became the first commandant, with Major Hugh Trenchard being his assistant. Trenchard later b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Flying School
The Central Flying School (CFS) is the Royal Air Force's primary institution for the training of military flying instructors. Established in 1912 at the Upavon Aerodrome, it is the longest existing flying training school in the world. The school was based at RAF Little Rissington from 1946 to 1976. Its motto is ''Imprimis Praecepta'', Latin for "The Teaching is Everlasting". The school currently manages a series of training squadrons and the RAF Display Team. History The Central Flying School was established by the Royal Navy at Upavon Aerodrome, near Upavon, Wiltshire, on 12 May 1912. The school's strength at the outset was ten Staff Officers and eighty flying students, whose course lasted for sixteen weeks.Hugh Soar, ''Straight & True'' (2012), p. 87 Its first commandant was Captain Godfrey Paine RN, and it also trained pilots for the Royal Flying Corps, created in 1912, and the Royal Naval Air Service, 1914–1918. The school was transferred from the Southern Train ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyril Uwins
Cyril Frank Uwins OBE, AFC, FRAeS (1896–1972) was a British test pilot who worked for Bristol Aeroplane Company, where he made the first flight of 58 types of aircraft. On 16 September 1932 he broke the world aeroplane height record by climbing to (nearly miles). He eventually became the Deputy Chairman of Bristol Aircraft. He was also Chairman of the Society of British Aircraft Manufacturer between 1956 and 1958, and he was awarded the Royal Aeronautical Society silver medal for aeronautics. Early life Cyril Uwins was born at 2 Carmichael Road, South Norwood, Croydon, on 2 August 1896, the eldest son of Frank Uwins, a wood broker, and his wife, Annie Henton. He was educated at the Whitgift School, Croydon, where he developed an interest in kites. Aviation career On the outbreak of the First World War, Uwins joined the Army and served with the London Irish Rifles. In November 1915 he was promoted to second lieutenant. After active service in France he transferred to the RF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawker Hawfinch
The Hawker Hawfinch was a British single-engined biplane fighter of the 1920s. It was unsuccessful, with the Bristol Bulldog being selected instead. Development The Hawker Hawfinch fighter aircraft was designed in 1925 as a replacement for both the Armstrong-Whitworth Siskin and the Gloster Gamecock fighters. It participated in the competition to meet Specification F9/26, together with other aircraft manufacturers, that included nine different designs, of which five were built. The Hawfinch first flew in March 1927. The Bristol Bulldog and the Hawfinch were considered to be the best of the aircraft evaluated, and were selected for more detailed evaluation. The contract was finally awarded to the Bristol Bulldog, because of its slightly higher maximum speed as well as being easier to maintain.Crawford, Alex. ''Bristol Bulldog & Gloster Gauntlet''. (Mushroom Model Magazine #6166). London: Mushroom Model Publications, 2005. After the completion of the competition, the prototype Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Martlesham Heath
Royal Air Force Martlesham Heath or more simply RAF Martlesham Heath is a former Royal Air Force station located southwest of Woodbridge, Suffolk, England. It was active between 1917 and 1963, and played an important role in the development of airborne radar. History RFC/RAF prewar use Martlesham Heath was first used as a Royal Flying Corps airfield during the First World War. In 1917 it became home to the Aeroplane Experimental Unit, RFC which moved from Upavon with the site named as the Aeroplane Experimental Station, next became the Aeroplane Experimental Establishment (Home) in 1920 and then the Aeroplane and Armament Experimental Establishment (A&AEE) in 1924. The A&AEE carried the evaluation and testing of many of the aircraft types and much of the armament and other equipment that would later be used during the Second World War. No. 22 Squadron RAF and No. 15 Squadron RAF were present during the 1920s. No. 64 arrived in the 1930s. RAF Fighter Command use The A&AEE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frise Aileron
An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in Flight dynamics, roll (or movement around the aircraft's Flight control surfaces#Longitudinal axis, longitudinal axis), which normally results in a change in flight path due to the tilting of the Lift (force), lift vector. Movement around this axis is called rolling or banking. Considerable controversy exists over credit for the invention of the aileron. The Wright brothers and Glenn Curtiss fought a years-long Wright brothers patent war, legal battle over the Wright patent of 1906, which described a method of wing-warping to achieve lateral control. The brothers prevailed in several court decisions which found that Curtiss's use of ailerons violated the Wright patent. Ultimately, the World War I, First World War compelled the U.S. Government to legislate a legal r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chord (aircraft)
In aeronautics, the chord is an imaginary straight line segment joining the leading edge and trailing edge of an aerofoil cross section parallel to the direction of the airflow. The chord length is the distance between the trailing edge and the leading edge. L. J. Clancy (1975), ''Aerodynamics'', Section 5.2, Pitman Publishing Limited, London. The point on the leading edge used to define the main chord may be the surface point of minimum radius. p.18 For a turbine aerofoil, the chord may be defined by the line between points where the front and rear of a 2-dimensional blade section would touch a flat surface when laid convex-side up. The wing, horizontal stabilizer, vertical stabilizer and propeller/rotor blades of an aircraft are all based on aerofoil sections, and the term ''chord'' or ''chord length'' is also used to describe their width. The chord of a wing, stabilizer and propeller is determined by measuring the distance between leading and trailing edges in the direc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
