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D.H.9
The Airco DH.9 (from de Havilland 9) – also known after 1920 as the de Havilland DH.9 – was a British single-engined biplane bomber developed and deployed during the First World War. The DH.9 was a development of Airco's earlier successful DH.4, with which it shared many components. These were mated to an all-new fuselage and the BHP/Galloway ''Adriatic'' engine, which promised increased performance. Anticipating its usefulness, the type was ordered in very large numbers for Britain's Royal Flying Corps (RFC). Upon entering service, the DH.9's performance was found to be unsatisfactory. The Adriatic engine was unreliable and failed to provide the expected power, which gave the DH.9 poorer performance than the aircraft it had been meant to replace. The performance deficit was blamed for the heavy losses they suffered over the Western Front. The redesigned DH.9A was fitted with a more powerful and reliable American Liberty L-12 engine which rectified the shortcomings of t ...
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Siddeley Puma
The Siddeley Puma was a British aero engine developed towards the end of World War I and produced by Siddeley-Deasy. The first engines left the production lines of Siddeley-Deasy in Coventry in August 1917, production continued until December 1918. At least 4,288 of the 11,500 ordered engines were delivered, orders were cancelled following the Armistice with Germany (Compiègne), Armistice. Production was continued under the name Armstrong Siddeley Puma when the manufacturer was bought by Armstrong Whitworth and became Armstrong Siddeley. The engine was based on a previous Beardmore Halford Pullinger, B.H.P engine which was also developed as the Galloway "Adriatic." Applications *The Puma engine was used in the British World War I bomber aircraft, the Airco D.H.9. In use it proved to be highly troublesome, making the aircraft significantly inferior to the type it replaced. The engine was also installed untidily, with the cylinder heads protruding. The D.H.9, as a type, was impr ...
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Airco
The Aircraft Manufacturing Company Limited (Airco) was an early United Kingdom, British aircraft manufacturer. Established during 1912, it grew rapidly during the First World War, referring to itself as the largest aircraft company in the world by 1918. Airco produced many thousands of aircraft for both the British and Allied military air wings throughout the war, including fighter aircraft, fighters, trainer aircraft, trainers and medium bomber, bombers. The majority of the company's aircraft were designed in-house by Airco's chief designer Geoffrey de Havilland. Airco established the first airline in the United Kingdom, Aircraft Transport and Travel Limited, which operated as a subsidiary of Airco. On 25 August 1919, it commenced the world's first regular daily international service. Following the end of the war, the company's fortunes rapidly turned sour. The interwar period was unfavourable for aircraft manufacturers largely due to a glut of surplus aircraft from the war ...
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Beardmore Halford Pullinger
Beardmore-Halford-Pullinger (BHP) were a series of aircraft engines used in production between 1916 and 1918. The engines were used on many notable First World War aircraft, such as the Airco DH.4, DH.9, Airco DH.10 Amiens, de Havilland DH.15 and Avro 529 aircraft. The engines were used as the basis for later designs such as the Siddeley Puma and A.D.C Nimbus (1926). Formation The name is derived from the three elements of: *Sir William Beardmore of William Beardmore and Company: Responsible for funding and providing original engines from his production company, which manufactured aero engines used in many aircraft prior to 1916 such as the 120 hp, 160 hp and Beardmore Tornado (diesel). They also manufactured aircraft and airships, such as the Beardmore W.B.III, and R23X class airship. The company types were modified into the B.H.P. engines. * Major Frank Halford: Responsible for proposingpage 120, ''The Aeroplane'', 2 February 1921 modifications to the engines originally tak ...
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South African Air Force
"Through hardships to the stars" , colours = , colours_label = , march = , mascot = , anniversaries = , equipment = , equipment_label = , battles = * World War I * World War II East African campaign (World War II), East African Campaign North African campaign, North African Campaign Battle of Madagascar, Madagascar Italian campaign (World War II), Italy Balkans campaign (World War II), Balkans * Korean War * South African Border War * Angolan Civil War, Angolan Bush War , decorations = , battle_honours = , battle_honours_label = , flying_hours = , website = , commander1 = President of South Africa, President Cyril Ramaphosa , commander1_label = Commander-in-chief#South Africa, Comman ...
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Airco DH
The Aircraft Manufacturing Company Limited (Airco) was an early United Kingdom, British aircraft manufacturer. Established during 1912, it grew rapidly during the First World War, referring to itself as the largest aircraft company in the world by 1918. Airco produced many thousands of aircraft for both the British and Allied military air wings throughout the war, including fighter aircraft, fighters, trainer aircraft, trainers and medium bomber, bombers. The majority of the company's aircraft were designed in-house by Airco's chief designer Geoffrey de Havilland. Airco established the first airline in the United Kingdom, Aircraft Transport and Travel Limited, which operated as a subsidiary of Airco. On 25 August 1919, it commenced the world's first regular daily international service. Following the end of the war, the company's fortunes rapidly turned sour. The interwar period was unfavourable for aircraft manufacturers largely due to a glut of surplus aircraft from the war ...
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Aviator
An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its Aircraft flight control system, directional flight controls. Some other aircrew, aircrew members, such as navigators or flight engineers, are also considered aviators, because they are involved in operating the aircraft's navigation and engine systems. Other aircrew members, such as drone operators, flight attendants, Aircraft maintenance technician, mechanics and Line technician (aviation), ground crew, are not classified as aviators. In recognition of the pilots' qualifications and responsibilities, most militaries and many airlines worldwide award aviator badges to their pilots. History The first recorded use of the term ''aviator'' (''aviateur'' in French) was in 1887, as a variation of ''aviation'', from the Latin ''avis'' (meaning ''bird''), coined in 1863 by in ''Aviation Ou Navigation Aérienne'' ("Aviation or Air Navigation"). The term ''aviatrix'' (''aviatrice'' in F ...
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Piston Engine
A reciprocating engine, also often known as a piston engine, is typically a heat engine that uses one or more reciprocating pistons to convert high temperature and high pressure into a rotating motion. This article describes the common features of all types. The main types are: the internal combustion engine, used extensively in motor vehicles; the steam engine, the mainstay of the Industrial Revolution; and the Stirling engine for niche applications. Internal combustion engines are further classified in two ways: either a spark-ignition (SI) engine, where the spark plug initiates the combustion; or a compression-ignition (CI) engine, where the air within the cylinder is compressed, thus heating it, so that the heated air ignites fuel that is injected then or earlier.''Thermodynamics: An Engineering Approach'' by Yunus A. Cengal and Michael A. Boles Common features in all types There may be one or more pistons. Each piston is inside a cylinder, into which a gas is intro ...
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Maiden Flight
The maiden flight, also known as first flight, of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets. The maiden flight of a new aircraft type is always a historic occasion for the type and can be quite emotional for those involved. In the early days of aviation it could be dangerous, because the exact handling characteristics of the aircraft were generally unknown. The maiden flight of a new type is almost invariably flown by a highly experienced test pilot. Maiden flights are usually accompanied by a chase plane, to verify items like altitude, airspeed, and general airworthiness. A maiden flight is only one stage in the development of an aircraft type. Unless the type is a pure research aircraft (such as the X-15), the aircraft must be tested extensively to ensure that it delivers the desired performance with an acceptable margin of safety. In the case of civilian aircraft, a new typ ...
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Bomber
A bomber is a military combat aircraft designed to attack ground and naval targets by dropping air-to-ground weaponry (such as bombs), launching aerial torpedo, torpedoes, or deploying air-launched cruise missiles. The first use of bombs dropped from an aircraft occurred in the Italo-Turkish War, with the first major deployments coming in the World War I, First World War and World War II, Second World War by all major airforces causing devastating damage to cities, towns, and rural areas. The first purpose built bombers were the Italy, Italian Caproni Ca 30 and United Kingdom, British Bristol T.B.8, both of 1913. Some bombers were decorated with nose art or victory markings. There are two major classifications of bomber: strategic and tactical. Strategic bombing is done by heavy bombers primarily designed for long-range bombing missions against strategic targets to diminish the enemy's ability to wage war by limiting access to resources through crippling infrastructure or reduci ...
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Hendon Aerodrome
Hendon Aerodrome was an aerodrome in London, England, that was an important centre for aviation from 1908 to 1968. It was situated in Colindale, north west of Charing Cross. It nearly became a central hub of civil aviation ("the Charing Cross of he UK'sinternational air routes"), but for the actions of the RAF after the First World War in reserving it for military aviation. It was known as a place of pioneering experiments including the first airmail, the first parachute descent from a powered aircraft, the first night flights, and the first aerial defence of a city. Beginnings Henry Coxwell and James Glaisher were the first to fly from Hendon in a balloon called the Mammoth in 1862. Ballooning at the Brent Reservoir was a popular spectacle for crowds on bank holidays late in the 19th century. The first powered flight from Hendon was in an long non-rigid airship built by Spencer Brothers of Highbury. It took off from the Welsh Harp Reservoir in 1909, piloted by Henry Spen ...
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Colindale
Colindale is a district in the London Borough of Barnet; its main shopping street on the A5 forming the borough boundary with neighbouring Brent. Colindale is a suburban area, and in recent years has had many new apartments built. It's also the location of the 1960s-1970s Grahame Park housing estate, built on former parts of Hendon Aerodrome. It is situated about northwest of Charing Cross, directly northwest of Hendon, to the south of Edgware and east of Queensbury. History Formerly in the borough and ancient parish of Hendon, the area was essentially the dale between Mill Hill and The Burroughs. By the middle of the 20th century, it had come to include that part of the Edgware Road between The Hyde and Burnt Oak. The area was originally called Collin Deep after the 16th-century family of John Collin. Until the 20th century, Colindale was without any buildings save for a large house called Colindale Lodge, Colindale Farm and a few cottages. A spelling with two Ls, 'Collin ...
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