Miss Shilling's Orifice
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Miss Shilling's Orifice
Miss Shilling's orifice was a very simple technical device made to counter engine cut-out in early Spitfire and Hurricane fighter aeroplanes during the Battle of Britain. While it was officially called the R.A.E. restrictor, it was referred to under various names, such as Miss Tilly's diaphragm or the Tilly orifice in reference to its inventor, Beatrice "Tilly" Shilling. Engine cut-out problems Early versions of the Rolls-Royce Merlin engine came equipped with an SU carburettor. When an aeroplane equipped with such an engine performed a negative G force manoeuvre (pitching the nose hard down), fuel was forced up to the top of the carburettor's float chamber rather than down into the engine, leading to loss of power. If the negative G continued, fuel collecting in the float chamber would force the float to the floor of the chamber. Since this float controlled the needle valve that regulated fuel intake, the carburettor would flood and drown the supercharger with an over-rich m ...
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Merlin Engine
Merlin engine may refer to: *Rolls-Royce Merlin, an aircraft engine *Merlin (rocket engine family) Merlin ( cy, Myrddin, kw, Marzhin, br, Merzhin) is a mythical figure prominently featured in the legend of King Arthur and best known as a mage, with several other main roles. His usual depiction, based on an amalgamation of historic and leg ..., family of rocket engines manufactured by SpaceX * Merlin, an engine in ''Thomas and Friends'' {{Disambiguation ...
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Inverted Flight
Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights. The term is a portmanteau of "aerial" and "acrobatics". Aerobatics are performed in aeroplanes and gliders for training, recreation, entertainment, and sport. Additionally, some helicopters, such as the MBB Bo 105, are capable of limited aerobatic manoeuvres. An example of a fully aerobatic helicopter, capable of performing loops and rolls, is the Westland Lynx. Most aerobatic manoeuvres involve rotation of the aircraft about its longitudinal (roll) axis or lateral (pitch) axis. Other maneuvers, such as a spin, displace the aircraft about its vertical (yaw) axis. Manoeuvres are often combined to form a complete aerobatic sequence for entertainment or competition. Aerobatic flying requires a broader set of piloting skills and exposes the aircraft to greater structural stress than for normal flight. In some countries, the pilot must wear a par ...
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Bendix Corporation
Bendix Corporation is an American manufacturing and engineering company which, during various times in its existence, made automotive brake shoes and systems, vacuum tubes, aircraft brakes, aeronautical hydraulics and electric power systems, avionics, aircraft and automobile fuel control systems, radios, televisions and computers. It was also well known for the name ''Bendix'', as used on home clothes washing machines, but never actually made these appliances. History Early history Founder and inventor Vincent Bendix initially began his corporation in a hotel room in Chicago in 1914 with an agreement with the struggling bicycle brake manufacturing firm, Eclipse Machine Company of Elmira, New York. Bendix granted permission to his invention which was described as "a New York device for the starting of explosive motors." This company made a low cost triple thread screw which could be used in the manufacture of other drive parts. By using this screw with the Eclipse Machine Com ...
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Sir Stanley Hooker
Sir Stanley George Hooker, CBE, FRS, DPhil, BSc, FRAeS, MIMechE, FAAAS, (30 September 1907 – 24 May 1984) was a mathematician and jet engine engineer. He was employed first at Rolls-Royce where he worked on the earliest designs such as the Welland and Derwent, and later at Bristol Aero Engines where he helped bring the troubled Proteus turboprop and the Olympus turbojet to market. He then designed the famous Pegasus vectored thrust turbofan used in the Hawker Siddeley Harrier. Early life Stanley George Hooker was born at Sheerness and educated at Borden Grammar School. He won a scholarship for Imperial College London to study mathematics, and in particular, hydrodynamics. He became more interested in aerodynamics, won the Busk studentship in aeronautics in 1928 and moved to Brasenose College, Oxford where he received his DPhil in this area in 1935. Rolls-Royce In late 1937, while working at the Admiralty he applied for a job at Rolls-Royce, and after being interviewed ...
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RAF Fighter Command
RAF Fighter Command was one of the commands of the Royal Air Force. It was formed in 1936 to allow more specialised control of fighter aircraft. It served throughout the Second World War. It earned near-immortal fame during the Battle of Britain in 1940, when the Few held off the Luftwaffe attack on Britain. The Command continued until 17 November 1943, when it was disbanded and the RAF fighter force was split into two categories; defence and attack. The defensive force became Air Defence of Great Britain (ADGB) and the offensive force became the RAF Second Tactical Air Force. Air Defence of Great Britain was renamed back to Fighter Command in October 1944 and continued to provide defensive patrols around Great Britain. It was disbanded for the second time in 1968, when it was subsumed into the new Strike Command. Origins On 20 May 1926, the forerunner of Fighter Command was established as a group within Inland Area. On 1 June 1926, Fighting Area was transferred to the Air D ...
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Daimler-Benz DB 601
The Daimler-Benz DB 601 was a German aircraft engine built during World War II. It was a liquid-cooled inverted V12 engine, V12, and powered the Messerschmitt Bf 109, Messerschmitt Bf 110, and many others. Approximately 19,000 601's were produced before it was replaced by the improved Daimler-Benz DB 605 in 1942. The DB 601 was basically an improved Daimler-Benz DB 600, DB 600 with gasoline direct injection, direct fuel injection. Fuel injection required power to be taken off the drive shaft, but in return, improved low-RPM performance significantly and provided aerobatic performance in maneuvers where early versions of carburetor, carburated engines like the British Rolls-Royce Merlin would lose power when the carburetor float bowl ran dry. The 601's fuel injection provided a significant boost in performance which its competitor, the Junkers Jumo 210, did not match for some time. By the time the fuel-injected 211 arrived, the 601 had already cemented its place as the engin ...
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Bf 109
The Messerschmitt Bf 109 is a German World War II fighter aircraft that was, along with the Focke-Wulf Fw 190, the backbone of the Luftwaffe's fighter force. The Bf 109 first saw operational service in 1937 during the Spanish Civil War and was still in service at the end of World War II in 1945. It was one of the most advanced fighters when it first appeared, with an all-metal monocoque construction, a closed canopy, and retractable landing gear. It was powered by a liquid-cooled, inverted-V12 aero engine. It was called the Me 109 by Allied aircrew and some German aces, even though this was not the official German designation. It was designed by Willy Messerschmitt and Robert Lusser who worked at Bayerische Flugzeugwerke during the early to mid-1930s. It was conceived as an interceptor, although later models were developed to fulfill multiple tasks, serving as bomber escort, fighter-bomber, day-, night-, all-weather fighter, ground-attack aircraft, and reconnaissance ...
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Pounds Per Square Inch
The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch. In SI units, 1 psi is approximately equal to 6895 Pa. Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around , this will be added to any pressure reading made in air at sea level. The converse is pounds per square inch gauge (psig), indicating that the pressure is relative to atmospheric pressure. For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14.7 psi) will have a pressure of 79.7 psia (14.7 psi + 65 psi). When gauge pressure is referenced to something other than ambient atmospheric pressure, then the u ...
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Farnborough Airfield
Farnborough Airport (previously called: TAG Farnborough Airport, RAE Farnborough, ICAO Code EGLF) is an operational business/executive general aviation airport in Farnborough, Rushmoor, Hampshire, England. The airport covers about 8% of Rushmoor's land area. Farnborough Aerodrome has a CAA Ordinary Licence (Number P864) that allows flights for the public transport of passengers or for flying instruction as authorised by the licensee (TAG Farnborough Airport Limited). The first powered flight in Britain was at Farnborough on 16 October 1908, when Samuel Cody took off in his British Army Aeroplane No 1. The airfield is the home of the Farnborough Airshow which is held in even numbered years. It is also home to the Air Accidents Investigation Branch, part of the Department for Transport. History Farnborough Airport has a long history, beginning at the start of the 20th century with the creation of His Majesty's Balloon Factory and the first powered flight in Britain in 1908 ...
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Royal Aircraft Establishment
The Royal Aircraft Establishment (RAE) was a British research establishment, known by several different names during its history, that eventually came under the aegis of the Ministry of Defence (United Kingdom), UK Ministry of Defence (MoD), before finally losing its identity in mergers with other institutions. The first site was at Farnborough Airfield ("RAE Farnborough") in Hampshire to which was added a second site RAE Bedford (Bedfordshire) in 1946. In 1988 it was renamed the Royal Aerospace Establishment (RAE) before merging with other research entities to become part of the new Defence Research Agency in 1991. History In 1904–1906 the Army Balloon Factory, which was part of the Army School of Ballooning, under the command of Colonel James Templer (balloon aviator), James Templer, relocated from Aldershot to the edge of Farnborough Common in order to have enough space to inflate the new "dirigible balloon" or airship which was then under construction.Walker, P; Early Avi ...
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Rolls-Royce
Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in 1998, a subsidiary of BMW Group * Rolls-Royce Motors, owner of the former car division incorporated in 1973, bought by Vickers in 1980, a subsidiary of Volkswagen Group from 1998 to 2002 * List of Rolls-Royce motor cars Aerospace and nuclear power * Rolls-Royce Holdings plc, an aerospace, power systems and defence company and Rolls-Royce's current principal operating company **Rolls-Royce Deutschland ***Rolls-Royce Power Systems ** Rolls-Royce Marine Power Operations ** Rolls-Royce North America ** Rolls-Royce Turbomeca ** Rolls-Royce Kamawea, now Kamewa ** Rolls-Royce Controls and Data Services See also * Rose Royce, an American soul and R&B group * Roll (other) * Royce (other) Markus Bennett is an American hip-hop re ...
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Gasoline Direct Injection
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct from manifold fuel injection systems, which inject fuel into the intake manifold. The use of GDI can help increase engine efficiency and specific power output as well as reduce exhaust emissions. The first GDI engine to reach production was introduced in 1925 for a low-compression truck engine. Several German cars used a Bosch mechanical GDI system in the 1950s, however usage of the technology remained rare until an electronic GDI system was introduced in 1996 by Mitsubishi for mass-produced cars. GDI has seen rapid adoption by the automotive industry in recent years, increasing in the United States from 2.3% of production for model year 2008 vehicles to approximately 50% for model year 2016. Operating principle Charge modes The 'charg ...
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