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Handley Page Dart Herald
The Handley Page HPR.7 Dart Herald is a British turboprop passenger aircraft, designed in the 1950s as a DC-3 replacement, but only entering service in the 1960s by which time it faced stiff competition from Fokker ( F27 Friendship) and Avro ( Avro/Hawker Siddeley HS748). Sales were disappointing, contributing in part to the demise of Handley Page in 1970. Design and development In the mid-1950s Handley Page developed a new fast short-range regional airliner, intended to replace the older Douglas DC-3, particularly in third-world countries.''Flight '' 19 August 1955, p. 260. The design, originally known as the HPR.3 Herald, emanated from the drawing office at Handley Page (Reading) Limited—the former Miles Aircraft factory site, which had developed an earlier airliner design, the Miles Marathon. The Herald was an extensive re-development of the original concept of the Marathon, notable for its high mounted wing.Payne 1997, pp. 336–337. Handley Page Reading succeeded in prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air UK
Air U.K. Limited, branded as AirUK, was a regional airline in the United Kingdom formed in 1980 as a result of a merger involving four rival UK-based regional airlines.World Airline Directory '''' 26 July 1980 pages 272, 280, 295 British & Commonwealth Holdings owned British Island Airways (BIA) and Air Angli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Dart
The Rolls-Royce RB.53 Dart is a turboprop engine designed and manufactured by Rolls-Royce Limited. First run in 1946, it powered the Vickers Viscount on its maiden flight in 1948. A flight on July 29 of that year, which carried 14 paying passengers between Northolt and Paris–Le Bourget Airport in a Dart-powered Viscount, was the first regularly scheduled airline flight by a turbine-powered aircraft.Turner 1968, p. 9. The Viscount was the first turboprop-powered aircraft to enter airline service - British European Airways (BEA) in 1953. The Dart was still in production forty years later when the last Fokker F27 Friendships and Hawker Siddeley HS 748s were produced in 1987. Following the company's convention for naming gas turbine engines after rivers, this turboprop engine design was named after the River Dart. History Designed in 1946 by a team led by Lionel Haworth, the Dart engine was derived using experience gained from the earlier more powerful Rolls-Royce Clyde t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Certificate
A type certificate signifies the airworthiness of a particular category of aircraft, according to its manufacturing design (''type design''). Certification confirms that the aircraft of a new type intended for serial production is in compliance with applicable airworthiness requirements established by the national air law. For up to three seats, Airworthiness certificate#Special Airworthiness Certificate, primary category aircraft certification costs around US$1 million, US$25 million for a general aviation aircraft and hundreds of millions of dollars for a commercial aircraft; certification delays can cost millions of dollars and can decide a program's profitability. Authority A type certificate (TC) is issued to signify the airworthiness of the approved design or "type" of an aircraft to be manufactured. The TC is issued by a regulatory authority, and once issued, the design cannot be changed unless at least part of the process for certification is repeated to cover the changes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dowty Rotol
Dowty Propellers is a British engineering company based in Brockworth, Gloucestershire that specialises in the manufacture, repair and overhaul of propellers and propeller components for customers around the world. It is owned by GE Aerospace. History The company was formed as Rotol Airscrews in 1937 by Rolls-Royce and Bristol Engines to take over both companies' propeller development, the market being too small to support more than one company. The name is a contraction of "Rolls-Royce" and "Bristol". Rotol's propellers were always considered leading edge, its models equipping the Hawker Hurricane, Supermarine Spitfire, and many other Second World War-era aircraft. By the end of the war it had introduced the first five-bladed propeller to see widespread use, used on late-model Spitfires. In 1943 the company changed its name from Rotol Airscrews Limited to Rotol Limited, and in 1952 it acquired British Messier Limited, a specialist in landing gear and hydraulics. In 1958, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Aviation Services
British Aviation Services Limited (Britavia) was an early post-World War II airline holding company and air transport operator that could trace its roots back to 1946.''Aircraft (Gone but not forgotten ... SILVER CITY)'', Vol 43, No 3, p. 41, Ian Allan Publishing, Hersham, January 2010 Its main activities included trooping, inclusive tour (IT) and worldwide passenger and freight charter services. British Aviation Services' first investment in a British independentindependent from government-owned corporations airline occurred in 1946, when it acquired a minority interest in Silver City Airways. Silver City Airways operated the world's first cross-Channel air ferry service on 13 July 1948. It subsequently became British Aviation Services' biggest operating division. In 1953, British Aviation Services took over the independent airline Air Kruise. The same year, BAS Group also took control of Aquila Airways, the last commercial flying boat operator in the United Kingdom. The comple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickers Viscount
The Vickers Viscount is a retired British medium-range turboprop airliner first flown in 1948 by Vickers-Armstrongs. A design requirement from the Brabazon Committee, it entered service in 1953 and was the first turboprop-powered airliner. The Viscount was well received by the public for its cabin conditions, which included Cabin pressurization, pressurisation, reductions in vibration and noise, and panoramic windows. It became one of the most successful and profitable of the first postwar transport aircraft; 445 Viscounts were built for a range of international customers, including in North America. Development Origins The Viscount was a response to the 1943 Brabazon Committee's proposed Type II design for a postwar, small, medium-range, Cabin pressurization, pressurised aircraft to fly less-travelled routes, carrying 24 passengers up to 1,750 mi (2,816 km) at 200 mph (320 km/h).Cacutt 1989, pp. 323–333. During discussions between the committee and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Kruise
Air Kruise was a British airline established in Kent in 1946. Starting with light aircraft for charter work, it expanded to include scheduled services to the near-continent. It was absorbed into Silver City Airways in 1957. History Squadron Leader Hugh Kennard DFC left the RAF in 1946, and became a director of Silver City Airways, as well as setting up his own company, officially named Air Kruise (Kent) Ltd. Air Kruise's first aircraft was a Miles Messenger 2A, the first civil example of the model to be produced after World War II, which was delivered to Kennard's base at Lympne Airport, Kent, in August 1946. It was to be used for charter work and for pleasure flights. Over the next few years the fleet slowly expanded first with an Airspeed Consul, further light aircraft, and from 1950, De Havilland Dragon Rapides. With the Rapides, in August 1950 Air Kruise started scheduled passenger services from Lympne to Le Touquet, France, operated as "Trans-Channel Air Services in ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Break-even (economics)
The break-even point (BEP) in economics, business—and specifically cost accounting—is the point at which total cost and total revenue are equal, i.e. "even". In layman's terms, after all costs are paid for there is neither profit nor loss. In economics specifically, the term has a broader definition; even if there is no net loss or gain, and one has "broken even", opportunity costs have been covered and capital has received the risk-adjusted, expected return. The break-even analysis was developed by Karl Bücher and Johann Friedrich Schär. Overview The break-even point (BEP) or break-even level represents the sales amount—in either unit (quantity) or revenue (sales) terms—that is required to cover total costs, consisting of both fixed and variable costs to the company. Total profit at the break-even point is zero. It is only possible for a firm to pass the break-even point if the dollar value of sales is higher than the variable cost per unit. This means that the sellin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radlett
Radlett is a large village in Hertfordshire, England, between Elstree and St Albans on Watling Street, with a population of 10,060. It is in the council district of Hertsmere in the south of the county, and forms part of the civil parish of Aldenham. Radlett is located inside the M25 motorway. Locality Radlett lies in the valley of Tykes Water, a stream that runs north from Aldenham Reservoir to the River Colne. Now entirely surrounded by the Metropolitan Green Belt, it is subject to significant 'infill' development and there is pressure to relax the Green Belt restrictions. Radlett is located 14 miles (22.5 km) north west of the centre of London. It is one of the wealthiest places in Britain and the second most expensive town to buy a house outside London. The town contains many substantial detached houses with large gardens. In the older centre there are also a few streets with Victorian semi detached and terraced houses. Watling Street, which is the main road t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lloyd Aéreo Colombiano
Lloyd, Lloyd's, or Lloyds may refer to: People * Lloyd (name), a variation of the Welsh word ' ("grey") or ' ** List of people with given name Lloyd ** List of people with surname Lloyd * Lloyd (singer) (born 1986), American singer Places United States * Lloyd, Florida * Lloyd, Kentucky * Lloyd, Montana * Lloyd, New York * Lloyd, Ohio * Lloyds, Alabama * Lloyds, Maryland * Lloyds, Virginia Elsewhere * Lloydminster, or "Lloyd", straddling the provincial border between Alberta and Saskatchewan, Canada Companies and businesses Derived from Lloyd's Coffee House *Lloyd's Coffee House, a London meeting place for merchants and shipowners between about 1688 and 1774 * Lloyd's of London, a British insurance market ** ''Lloyd's of London'' (film), a 1936 film about the insurance market ** Lloyd's building, its headquarters ** Lloyd's Agency Network * ''Lloyd's List'', a website and 275-year-old daily newspaper on shipping and global trade ** ''Lloyd's List Intelligence'' (former ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian National Airways
Australian National Airways (ANA) was Australia's predominant aerial carrier from the mid-1930s to the early 1950s. The Holyman's Airways period On 19 March 1932 Flinders Island Airways began a regular aerial service using the Desoutter Mk.II VH-UEE ''Miss Flinders'' between Launceston, Tasmania and Flinders Island in Bass Strait, which competed with shipping services offered by William Holyman and Sons Ltd. Due to monopoly arrangements with other Australian shipowners, Holymans (as it was known) was only allowed to carry passengers on internal Tasmanian routes, and resented the intrusion. Brothers Captain Victor Holyman and Ivan Holyman purchased a de Havilland Fox Moth, de Havilland D.H.83 Fox Moth VH-UQM ''Miss Currie'' which entered service on the same route on 1 October 1932, and soon amalgamated with Flinders Island Airways to form Tasmanian Aerial Services Pty Ltd. They later purchased a De Havilland Dragon, de Havilland D.H.84 Dragon VH-URD ''Miss Launceston'' that beg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland Airlines
Queensland ( , commonly abbreviated as Qld) is a state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south, respectively. To the east, Queensland is bordered by the Coral Sea and the Pacific Ocean; to the state's north is the Torres Strait, separating the Australian mainland from Papua New Guinea, and the Gulf of Carpentaria to the north-west. With an area of , Queensland is the world's sixth-largest subnational entity; it is larger than all but 16 countries. Due to its size, Queensland's geographical features and climates are diverse, and include tropical rainforests, rivers, coral reefs, mountain ranges and white sandy beaches in its tropical and sub-tropical coastal regions, as well as deserts and savanna in the semi-arid and desert climatic regions of its interior. Queensland has a population of over 5.5 million, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
