1.
Air traffic control
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The primary purpose of ATC worldwide is to prevent collisions, organize and expedite the flow of air traffic, and provide information and other support for pilots. In some countries, ATC plays a security or defensive role, to prevent collisions, ATC enforces traffic separation rules, which ensure each aircraft maintains a minimum amount of empty space around it at all times. Many aircraft also have collision avoidance systems, which provide additional safety by warning pilots when other aircraft get too close, in many countries, ATC provides services to all private, military, and commercial aircraft operating within its airspace. Depending on the type of flight and the class of airspace, ATC may issue instructions that pilots are required to obey, or advisories that pilots may, at their discretion, disregard. Pursuant to requirements of the International Civil Aviation Organization, ATC operations are conducted either in the English language or the used by the station on the ground. In practice, the language for a region is normally used, however. In 1921, Croydon Airport, London was the first airport in the world to air traffic control. In the United States, air traffic control developed three divisions, the first of air mail radio stations was created in 1922 after World War I when the U. S. Post Office began using techniques developed by the Army to direct, over time, the AMRS morphed into flight service stations. Todays flight service stations do not issue instructions, but provide pilots with many other flight related informational services. They do relay control instructions from ATC in areas where service is the only facility with radio or phone coverage. The first airport traffic control tower, regulating arrivals, departures and surface movement of aircraft at a specific airport, approach/departure control facilities were created after adoption of radar in the 1950s to monitor and control the busy airspace around larger airports. The first air traffic control center, which directs the movement of aircraft between departure and destination was opened in Newark, NJ in 1935, followed in 1936 by Chicago. The primary method of controlling the airport environment is visual observation from the airport control tower. The tower is a tall, windowed structure located on the airport grounds, surveillance displays are also available to controllers at larger airports to assist with controlling air traffic. Controllers may use a system called secondary surveillance radar for airborne traffic approaching and departing. These displays include a map of the area, the position of aircraft, and data tags that include aircraft identification, speed, altitude. In adverse weather conditions the tower controllers may also use surface movement radar, surface movement guidance, remote and virtual tower is a system based on air traffic controllers being located somewhere other than at the local airport tower and still able to provide air traffic control services
2.
Cirencester
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Cirencester is a market town in east Gloucestershire, England,93 miles west northwest of London. Cirencester lies on the River Churn, a tributary of the River Thames and it is the home of the Royal Agricultural University, the oldest agricultural college in the English-speaking world, founded in 1840. The towns Corinium Museum is well known for its extensive Roman collection, the Roman name for the town was Corinium, which is thought to have been associated with the ancient British tribe of the Dobunni, having the same root word as the River Churn. The earliest known reference to the town was by Ptolemy in 150AD, Cirencester is twinned with Itzehoe, Germany. Cirencester lies on the dip slopes of the Cotswold Hills. Natural drainage is into the River Churn, which flows north to south through the eastern side of the town. The Thames itself rises just a few miles west of Cirencester, the town is split into five main areas, the town centre, the suburbs of Chesterton, Stratton, Watermoor and The Beeches. The village of Siddington to the south of the town is now almost contiguous with Watermoor, other suburbs include Bowling Green and New Mills. The area and population of these 5 electoral wards are identical to that quoted above. The town serves as a centre for surrounding villages, providing employment, amenities, shops, commerce and education, and as a commuter town for larger centres such as Cheltenham, Swindon and Stroud. Cirencester is the hub of a significant road network with important routes to Gloucester, Cheltenham, Warwick, Oxford, Wantage, Swindon, Chippenham, Bristol, Bath, however, only Gloucester, Cheltenham, Stroud and Swindon have slow bus connections. These good roads bring the town passing trade, although the ring road and bypass take traffic away from the town centre, both roads have busy service areas with adequate parking. Since closure of the Kemble to Cirencester branch line to Cirencester Town in 1964 the town has one of the largest in the region without its own rail station. However Kemble railway station,4 miles away, serves as a railhead and it provides regular services between Swindon and Gloucester, with peak-time direct trains to London Paddington station. The nearest airports are Bristol Airport, Cotswold Airport at Kemble, London, Cirencester was known to be an important early Roman area, along with St. Albans and Colchester, and the town includes evidence of significant area roadworks. When the Romans built a fort where the Fosse Way crossed the Churn, AD49, native Dobunni were drawn from Bagendon, a settlement of the Dobunni situated 3 miles to the north, to create a civil settlement near the fort. When the frontier moved to the following the conquest of Wales. 70, but the town persisted and flourished under the name Corinium Dobunnorum, even in Roman times, there was a thriving wool trade and industry, which contributed to the growth of Corinium. A large forum and basilica was built over the site of the fort, there are many Roman remains in the surrounding area, including several Roman villas near the villages of Chedworth and Withington
3.
Runway
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According to the International Civil Aviation Organization, a runway is a defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft. Runways may be a surface or a natural surface. Runways are named by a number between 01 and 36, which is generally the magnetic azimuth of the heading in decadegrees. This heading differs from true north by the magnetic declination. A runway numbered 09 points east, runway 18 is south, runway 27 points west, when taking off from or landing on runway 09, a plane would be heading 90°. A runway can normally be used in both directions, and is named for each separately, e. g. runway 33 in one direction is runway 15 when used in the other. The two numbers usually differ by 18, Runway Zero Three Left becomes Runway Two One Right when used in the opposite direction. In some countries, if parallel runways are too close to each other, at large airports with four or more parallel runways some runway identifiers are shifted by 10 degrees to avoid the ambiguity that would result with more than three parallel runways. For example, in Los Angeles, this results in runways 6L, 6R, 7L. At Dallas/Fort Worth International Airport, there are five parallel runways, named 17L, 17C, 17R, 18L, for clarity in radio communications, each digit in the runway name is pronounced individually, runway three six, runway one four, etc. A leading zero, for example in runway zero six or runway zero one left, is included for all ICAO, however, most U. S. civil aviation airports drop the leading zero as required by FAA regulation. This also includes some military airfields such as Cairns Army Airfield and this American anomaly may lead to inconsistencies in conversations between American pilots and controllers in other countries. It is very common in a such as Canada for a controller to clear an incoming American aircraft to, for example, runway 04. In flight simulation programs those of American origin might apply U. S. usage to airports around the world, for example, runway 05 at Halifax will appear on the program as the single digit 5 rather than 05. Runway designations change over time because the magnetic poles slowly drift on the Earths surface, depending on the airport location and how much drift takes place, it may be necessary over time to change the runway designation. As runways are designated with headings rounded to the nearest 10 degrees, for example, if the magnetic heading of a runway is 233 degrees, it would be designated Runway 23. If the magnetic heading changed downwards by 5 degrees to 228, if on the other hand the original magnetic heading was 226, and the heading decreased by only 2 degrees to 224, the runway should become Runway 22. Because the drift itself is slow, runway designation changes are uncommon
4.
Asphalt
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Asphalt, also known as bitumen is a sticky, black and highly viscous liquid or semi-solid form of petroleum. It may be found in deposits or may be a refined product. Until the 20th century, the term asphaltum was also used, the word is derived from the Ancient Greek ἄσφαλτος ásphaltos. The primary use of asphalt/bitumen is in construction, where it is used as the glue or binder mixed with aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt, the terms asphalt and bitumen are often used interchangeably to mean both natural and manufactured forms of the substance. In American English, asphalt is the carefully refined residue from the process of selected crude oils. Outside the United States, the product is often called bitumen, geologists often prefer the term bitumen. Common usage often refers to forms of asphalt/bitumen as tar. Naturally occurring asphalt/bitumen is sometimes specified by the crude bitumen. Its viscosity is similar to that of cold molasses while the material obtained from the distillation of crude oil boiling at 525 °C is sometimes referred to as refined bitumen. The Canadian province of Alberta has most of the reserves of natural bitumen, covering 142,000 square kilometres. Additionally, most natural bitumens contain organosulfur compounds, resulting in a sulfur content of up to 4%. Nickel and vanadium are found in the <10 ppm level, as is typical of some petroleum, the substance is soluble in carbon disulfide. It is commonly modelled as a colloid, with asphaltenes as the dispersed phase, and it is almost impossible to separate and identify all the different molecules of asphalt, because the number of molecules with different chemical structure is extremely large. Asphalt/bitumen can sometimes be confused with tar, which is a visually similar black. During the early and mid-20th century when town gas was produced, coal tar was a readily available byproduct, the addition of tar to macadam roads led to the word tarmac, which is now used in common parlance to refer to road-making materials. However, since the 1970s, when natural gas succeeded town gas, other examples of this confusion include the La Brea Tar Pits and the Canadian oil sands, both of which actually contain natural bitumen rather than tar. Pitch is another term used at times to refer to asphalt/bitumen
5.
General aviation
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General aviation is the term for all civil aviation operations other than scheduled air services and non-scheduled air transport operations for remuneration or hire. General aviation flights range from gliders and powered parachutes to corporate business jet flights, the majority of the worlds air traffic falls into this category, and most of the worlds airports serve general aviation exclusively. General aviation covers a range of activities, both commercial and non-commercial, including flying clubs, flight training, agricultural aviation, light aircraft manufacturing. Of the 21,000 civil aircraft registered in the UK,96 per cent are engaged in GA operations, there are 28,000 Private Pilot Licence holders, and 10,000 certified glider pilots. Some of the 19,000 pilots who hold professional licences are also engaged in GA activities, GA operates from more than 1,800 airports and landing sites or aerodromes, ranging in size from large regional airports to farm strips. GA is regulated by the Civil Aviation Authority, although regulatory powers are being transferred to the European Aviation Safety Agency. The main focus is on standards of airworthiness and pilot licensing, general aviation is particularly popular in North America, with over 6,300 airports available for public use by pilots of general aviation aircraft. In comparison, scheduled flights operate from around 560 airports in the U. S, aircraft Owners and Pilots Association, general aviation provides more than one percent of the United States GDP, accounting for 1.3 million jobs in professional services and manufacturing. Most countries have authorities that oversee all civil aviation, including general aviation, Aviation accident rate statistics are necessarily estimates. In Canada, recreational flying accounted for 0.7 fatal accidents for every 1000 aircraft, while air taxi accounted for 1.1 fatal accidents for every 100,000 hours
6.
Royal Air Force
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The Royal Air Force is the United Kingdoms aerial warfare force. Formed towards the end of the First World War on 1 April 1918, following victory over the Central Powers in 1918 the RAF emerged as, at the time, the largest air force in the world. The RAF describe its mission statement as, an agile, adaptable and capable Air Force that, person for person, is second to none, and that makes a decisive air power contribution in support of the UK Defence Mission. The mission statement is supported by the RAFs definition of air power, Air power is defined as the ability to project power from the air and space to influence the behaviour of people or the course of events. Today the Royal Air Force maintains a fleet of various types of aircraft. The majority of the RAFs rotary-wing aircraft form part of the tri-service Joint Helicopter Command in support of ground forces, most of the RAFs aircraft and personnel are based in the UK, with many others serving on operations or at long-established overseas bases. It was founded on 1 April 1918, with headquarters located in the former Hotel Cecil, during the First World War, by the amalgamation of the Royal Flying Corps, at that time it was the largest air force in the world. The RAFs naval aviation branch, the Fleet Air Arm, was founded in 1924, the RAF developed the doctrine of strategic bombing which led to the construction of long-range bombers and became its main bombing strategy in the Second World War. The RAF underwent rapid expansion prior to and during the Second World War, under the British Commonwealth Air Training Plan of December 1939, the air forces of British Commonwealth countries trained and formed Article XV squadrons for service with RAF formations. Many individual personnel from countries, and exiles from occupied Europe. By the end of the war the Royal Canadian Air Force had contributed more than 30 squadrons to serve in RAF formations, additionally, the Royal Australian Air Force represented around nine percent of all RAF personnel who served in the European and Mediterranean theatres. In the Battle of Britain in 1940, the RAF defended the skies over Britain against the numerically superior German Luftwaffe, the largest RAF effort during the war was the strategic bombing campaign against Germany by Bomber Command. Following victory in the Second World War, the RAF underwent significant re-organisation, during the early stages of the Cold War, one of the first major operations undertaken by the Royal Air Force was in 1948 and the Berlin Airlift, codenamed Operation Plainfire. Before Britain developed its own nuclear weapons the RAF was provided with American nuclear weapons under Project E and these were initially armed with nuclear gravity bombs, later being equipped with the Blue Steel missile. Following the development of the Royal Navys Polaris submarines, the nuclear deterrent passed to the navys submarines on 30 June 1969. With the introduction of Polaris, the RAFs strategic nuclear role was reduced to a tactical one and this tactical role was continued by the V bombers into the 1980s and until 1998 by Tornado GR1s. For much of the Cold War the primary role of the RAF was the defence of Western Europe against potential attack by the Soviet Union, with many squadrons based in West Germany. With the decline of the British Empire, global operations were scaled back, despite this, the RAF fought in many battles in the Cold War period
7.
Red Arrows
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The Red Arrows, officially known as the Royal Air Force Aerobatic Team, is the aerobatics display team of the Royal Air Force based at RAF Scampton. The team was formed in late 1964 as an all-RAF team, the Red Arrows badge shows the aircraft in their trademark diamond nine formation, with the motto Éclat, a French word meaning brilliance or excellence. Initially, they were equipped with seven Folland Gnat trainers inherited from the RAF Yellowjacks display team and this aircraft was chosen because it was less expensive to operate than front-line fighters. In their first season, they flew at 65 shows across Europe, in 1966, the team was increased to nine members, enabling them to develop their Diamond Nine formation. In late 1979, they switched to the BAE Hawk trainer, the Red Arrows have performed over 4,700 displays in 56 countries worldwide. The Red Arrows were not the first RAF aerobatics team, an RAF pageant was held at Hendon in 1920 with teams from front-line biplane squadrons. In 1925, No.32 Squadron RAF flew an air display six nights a week entitled London Defended at the British Empire Exhibition, in 1938, three Gloster Gladiators flew with their wing-tips tied together. Formation aerobatics largely stopped during the Second World War, in 1947, the first jet team of three de Havilland Vampires came from RAF Odiham Fighter Wing. Various teams flew the Vampire, and in 1950, No.72 Squadron was flying a team of seven, No.54 Squadron became the first RAF jet formation team to use smoke trails. Vampires were replaced by Gloster Meteors, No.66 Squadron developing a team of six aircraft. Hawker Hunter aircraft were first used for teams in 1955. The official RAF team was provided by No.111 Squadron in 1956, and for the first time the aircraft had a colour scheme. After a demonstration in France, they were hailed as Les Fleches Noires and this team became the first team to fly a five-Hunter formation. In 1958 the Black Arrows performed a loop and barrel roll of 22 Hunters, the Black Arrows were the premier team until 1961, when the Blue Diamonds continued their role, flying sixteen blue Hunters. In 1960, the Tigers were re-equipped with the supersonic English Electric Lightning and performed wing-overs and they sometimes gave co-ordinated displays with the Blue Diamonds. Yet another aerobatics team was formed in 1960 by No.56 Squadron, in 1964, the Red Pelicans, flying six BAC Jet Provost T Mk 4s, assumed the role of the RAFs leading display team. In that same year, a team of five yellow Gnat trainers from No 4 Flying Training School displayed at the Farnborough Airshow and this team became known as the Yellowjacks after Flight Lieutenant Lee Joness call sign, Yellowjack. In 1964, all the RAF display teams were amalgamated, as it was feared pilots were spending too much time practising formation aerobatics rather than operational training
8.
Aerobatics
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Aerobatics is the practice of flying maneuvers involving aircraft altitudes that are not used in normal flight. Aerobatics are performed in airplanes and gliders for training, recreation, entertainment, additionally, some helicopters, such as the MBB Bo 105, are capable of limited aerobatic maneuvers. An example of a fully aerobatic helicopter, capable of performing loops, the term is sometimes referred to as acrobatics, especially when translated. Most aerobatic maneuvers involve rotation of the aircraft about its longitudinal axis or lateral axis, other maneuvers, such as a spin, displace the aircraft about its vertical axis. Maneuvers are often combined to form a complete sequence for entertainment or competition. Aerobatic flying requires a set of piloting skills and exposes the aircraft to greater structural stress than for normal flight. In some countries, the pilot must wear a parachute when performing aerobatics, aerobatic training enhances a pilots ability to recover from unusual flight conditions, and thus is an element of many flight safety training programs for pilots. While many pilots fly aerobatics for recreation, some choose to fly in aerobatic competitions, in the early days of flying, some pilots used their aircraft as part of a flying circus to entertain. Among the earliest innovators in aerobatics the Frenchman Euclids name is foremost, maneuvers were flown for artistic reasons or to draw gasps from onlookers. In due course some of these maneuvers were found to allow aircraft to gain tactical advantage during combat or dogfights between fighter aircraft. Aerobatic aircraft fall into two categories—specialist aerobatic, and aerobatic capable, specialist designs such as the Pitts Special, the Extra 200 and 300, and the Sukhoi Su-26M and Sukhoi Su-29 aim for ultimate aerobatic performance. This comes at the expense of general use such as touring. Flight formation aerobatics are flown by teams of up to sixteen aircraft, some are state funded to reflect pride in the armed forces while others are commercially sponsored. Coloured smoke trails may be emitted to emphasise the patterns flown and/or the colours of a national flag, usually each team will use aircraft similar to one another finished in a special and dramatic colour scheme, thus emphasising their entertainment function. Teams often fly V-formations — they will not fly directly behind another aircraft because of danger from wake vortices or engine exhaust, aircraft will always fly slightly below the aircraft in front, if they have to follow in line. Aerobatic maneuvers flown in an aircraft are limited in scope as they cannot take advantage of the gyroscopic forces that a propeller driven aircraft can exploit. Jet-powered aircraft also tend to fly faster, which increases the size of the figures. Jet aerobatic teams often fly in formations, which restricts the maneuvers that can be safely flown
9.
Cheltenham
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The town hosts several festivals of culture, often featuring nationally and internationally famous contributors and attendees. As the home of the race of British steeplechase horse racing. Cheltenham stands on the small River Chelt, which rises nearby at Dowdeswell, as a royal manor, it features in the earliest pages of the Gloucestershire section of Domesday Book where it is named Chintenha. The town was awarded a charter in 1226. Though little remains of its history, Cheltenham has been a health. Captain Henry Skillicorne, is credited with being the first entrepreneur to recognise the opportunity to exploit the mineral springs, the retired master mariner became co-owner of the property containing Cheltenhams first mineral spring upon his 1732 marriage to Elizabeth Mason. Her father, William Mason, had little in his lifetime to promote the healing properties of the mineral water apart from limited advertising and building a small enclosure over the spring. Skillicornes wide travels as a merchant had prepared him to see the potential lying dormant on this inherited property, after moving to Cheltenham in 1738, he immediately began improvements intended to attract visitors to his spa. He built a pump to regulate the flow of water and erected an elaborate well-house complete with a ballroom, the beautiful walks and gardens were naturally adorned with sweeping vistas of the countryside. Soon the gentry and nobility from across the county were enticed to come, the visit of George III with the queen and royal princesses in 1788 set a stamp of fashion on the spa. Cheltenhams success as a spa town is reflected in the station, which is still called Cheltenham Spa. Alice Liddell and Lewis Carroll were regular visitors to a house in Cudnall Street, horse racing began in Cheltenham in 1815, and became a major national attraction after the establishment of the Festival in 1902. Most of this materiel was reshipped to the continent for and after the D-Day invasion, lee and his primary staff had offices and took residence at Thirlestaine Hall in Cheltenham. On 1 April 1974, under the Local Government Act 1972, four parishes—Swindon Village, Up Hatherley, Leckhampton and Prestbury—were added to the borough of Cheltenham from the borough of Tewkesbury in 1991. The first British jet aircraft prototype, the Gloster E. 28/39, was manufactured in Cheltenham, manufacturing started in Hucclecote near Gloucester, but was later moved to Regent Motors in Cheltenham High Street, considered a location safer from bombing during the Second World War. Cheltenham Borough Council is the authority for Cheltenham, which is split into 20 wards. Since 2002 elections have been every two years with half of the councillors elected at each election. The Doughnut, the office of the British Government Communications Headquarters is located in Cheltenham
10.
Swindon
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Swindon is a large town in Wiltshire, South West England, midway between Bristol,35 miles to the west and Reading,35 miles to the east. London is 78 miles to the east, and Cardiff is 78 miles to the west, at the 2011 census, it had a population of 185,609. Swindon became an Expanded Town under the Town Development Act 1952, Swindon railway station is on the line from London Paddington to Bristol. Swindon Borough Council is an authority, independent of Wiltshire Council since 1997. Residents of Swindon are known as Swindonians, the town and wider borough also has the headquarters of the Nationwide Building Society and a Honda car manufacturing plant. The original Anglo-Saxon settlement of Swindon sat in a position atop a limestone hill. It is referred to in the Domesday Book as Suindune, believed to be derived from the Old English words swine and dun meaning pig hill or possibly Sweyns hill, Swindon was a small market town, mainly for barter trade, until roughly 1848. This original market area is on top of the hill in central Swindon, the Industrial Revolution was responsible for an acceleration of Swindons growth. It started with the construction of the Wilts and Berks Canal in 1810, the canals brought trade to the area and Swindons population started to grow. Between 1841 and 1842, Isambard Kingdom Brunels Swindon Works was built for the repair, the GWR built a small railway village to house some of its workers. The Steam Railway Museum and English Heritage, including the English Heritage Archive, in 1878 the fund began providing artificial limbs made by craftsmen from the carriage and wagon works, and nine years later opened its first dental surgery. In his first few months in post the dentist extracted more than 2000 teeth, from the opening in 1892 of the Health Centre, a doctor could also prescribe a haircut or even a bath. The cradle-to-grave extent of service was later used as a blueprint for the NHS. The Mechanics Institute, formed in 1844, moved into a building looking rather like a church and included a covered market, on 1 May 1855. The New Swindon Improvement Company, a co-operative, raised the funds for this path self-improvement and it was a groundbreaking organisation that transformed the railways workforce into some of the countrys best-educated manual workers. It had the UKs first lending library, and a range of improving lectures, access to a theatre, the Institute also nurtured pioneering trades unionists and encouraged local democracy. During the second half of the 19th century, Swindon New Town grew around the line between London and Bristol. In 1900, the market town, Old Swindon, merged with its new neighbour at the bottom of the hill to become a single town
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