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BAC Two-Eleven And Three-Eleven
The BAC Two-Eleven and BAC Three-Eleven were pair of proposals for British airliners that were produced by the British Aircraft Corporation (BAC) during the late 1960s. The projects had emerged from design studies which had been aimed at competing first with the Boeing 727-200 and then with the proposed European Airbus. During the 1960s, BAC, having become interested in the prospects for developing successors to its existing airliners, such as the Vickers VC10, embarked upon a series of studies, initially centring on an enlarged double-decker version of the VC10, commonly referred to as the ''Super VC10''. After this concept failed to gain favour and the British Overseas Airways Corporation (BOAC) selected the American Boeing 747 instead, the company decided to refocus its efforts on a smaller aircraft partially based upon its successful One-Eleven airliner instead. The resulting proposed 191 to 208-seat airliner, known as the Two-Eleven, was viewed as an alternative to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister 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'' 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 outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1967 In Aviation
This is a list of aviation-related events from 1967: Events * The Canadian Golden Centennaires aerobatic team is formed and performs all year to celebrate the Canadian Centennial year. * Boeing opens its biggest factory (largest building by volume), the Boeing Everett Factory, in Everett, Washington. January * January 1 – The United States conducts a 48-hour standdown of air operations over Vietnam for the New Year holiday.Nichols, CDR John B., and Barret Tillman, ''On Yankee Station: The Naval Air War Over Vietnam'', Annapolis, Maryland: United States Naval Institute, 1987, , p. 155. * January 2 ** In the biggest air battle to date in the Vietnam War, seven North Vietnamese Mikoyan-Gurevich MiG-21s (NATO reporting name "Fishbed") are destroyed by U.S. Air Force F-4 Phantom II, F-4C Phantom II fighters of the 8th Tactical Fighter Wing in Operation Bolo. ** The contracts for the development of the Boeing SST supersonic transport and its engines are awarded. * January 15 &nd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1968 In Aviation
This is a list of aviation-related events from 1968: Events * In the 1968 White Paper on Defence, the British Labour government announces that the Royal Navys aircraft carrier force will be phased out as soon as the United Kingdom has completed its withdrawal from Malaysia, Singapore, and the Persian Gulf, scheduled for the end of 1971. * The original Golden West Airlines is founded, headquartered at Van Nuys, California. January * North Vietnamese Antonov An-2 utility biplanes conduct bombing raids into Laos and fly night missions against ships and craft of the South Vietnamese Navy.Nichols, CDR John B., and Barret Tillman, ''On Yankee Station: The Naval Air War Over Vietnam'', Annapolis, Maryland: United States Naval Institute, 1987, , p. 156. * After the Soviet Union complains about damage to a Soviet merchant ship in Haiphong Harbor by American air attack, President Lyndon B. Johnsons administration promises to make every effort to avoid a recurrence of such damage. * J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British European Airways
British European Airways (BEA), formally British European Airways Corporation, was a British airline which existed from 1946 until 1974. BEA operated to Europe, North Africa and the Middle East from airports around the United Kingdom. The airline was also the largest UK domestic operator, serving major British cities, including London, Manchester, Glasgow, Edinburgh and Belfast, as well as areas of the British Isles such as the Highlands and Islands of Scotland, the Channel Islands and the Isle of Man.''Classic Aircraft (Gone but not forgotten ... BEA: Highlands and Islands – Never on a Sunday)'', Vol. 45, No. 6, p. 46, Ian Allan Publishing, Hersham, June 2012 BEA also operated a network of internal German routes between West Berlin and West Germany as part of the Cold War agreements regulating air travel within Germany.''Classic Aircraft (Gone but not forgotten ... BEA: Internal German Services – Berlin-bound)'', Vol. 45, No. 6, p. 51, Ian Allan Publishing, Hersham, June ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Bypass
The bypass ratio (BPR) of a turbofan engine is the ratio between the mass flow rate of the bypass stream to the mass flow rate entering the core. A 10:1 bypass ratio, for example, means that 10 kg of air passes through the bypass duct for every 1 kg of air passing through the core. Turbofan engines are usually described in terms of BPR, which together with engine pressure ratio, turbine inlet temperature and fan pressure ratio are important design parameters. In addition, BPR is quoted for turboprop and unducted fan installations because their high propulsive efficiency gives them the overall efficiency characteristics of very high bypass turbofans. This allows them to be shown together with turbofans on plots which show trends of reducing specific fuel consumption (SFC) with increasing BPR. BPR is also quoted for lift fan installations where the fan airflow is remote from the engine and doesn't physically touch the engine core. Bypass provides a lower fuel consumption ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonnell Douglas MD-80
The McDonnell Douglas MD-80 is a series of five-abreast single-aisle airliners developed by McDonnell Douglas. It was produced by the developer company until August 1997 and then by Boeing Commercial Airplanes. The MD-80 was the second generation of the DC-9 family, originally designated as the DC-9-80 (DC-9 Series 80) and later stylized as the DC-9 Super 80 (short ''Super 80''). Stretched, enlarged wing and powered by higher bypass Pratt & Whitney JT8D-200 engines, the aircraft program was launched in October 1977. The MD-80 made its first flight on October 18, 1979 as the Super 80 and was certified on August 25, 1980. The first airliner was delivered to launch customer Swissair on September 13, 1980, which introduced it into commercial service on October 10, 1980. Keeping the fuselage cross-section, longer variants are stretched by 14 ft (4.3 m) from the DC-9-50 and have a 28% larger wing. The larger variants (MD-81/82/83/88) are 148 ft (45.1 m) long to seat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1966 In Aviation
This is a list of aviation-related events from 1966: Events * Puerto Rican International Airlines begin services. January * The United States Army′s helicopter assault-oriented 1st Cavalry Division (Airmobile) begins Operation Matador to destroy North Vietnamese Army forces in Pleiku and Kon Tum Province, South Vietnam. * January 1 – The U.S. Military Air Transport Service is redesignated the Military Airlift Command. * January 1–7 – The U.S. Army's 173rd Airborne Brigade and Australian troops carry out Operation Marauder, a combined helicopter and ground assault against Viet Cong forces in South Vietnam's Mekong Delta and the first time American units operate in the Delta.Chinnery, Philip D., ''Vietnam: The Helicopter War'', Annapolis, Maryland: Naval Institute Press, 1991, , p. 61. * January 3 – The United States Air Force′s second North American XB-70A Valkyrie – named Air Vehicle 2 (AV-2) – reaches Mach 3.05 at an altitude of 72,000 feet (21,94 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbofan
The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft engine, aircraft propulsion. The word "turbofan" is a portmanteau of "turbine" and "fan": the ''turbo'' portion refers to a gas turbine engine which achieves mechanical energy from combustion, and the ''fan'', a ducted fan that uses the mechanical energy from the gas turbine to force air rearwards. Thus, whereas all the air taken in by a turbojet passes through the combustion chamber and turbines, in a turbofan some of that air bypasses these components. A turbofan thus can be thought of as a turbojet being used to drive a ducted fan, with both of these contributing to the thrust. The ratio of the mass-flow of air bypassing the engine core to the mass-flow of air passing through the core is referred to as the bypass ratio. The engine produces thrust through a combination of these two portions working together; engines that use more Propelling nozzle, jet thrust relative to fan thrust are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce RB211
The Rolls-Royce RB211 is a British family of high-bypass turbofan engines made by Rolls-Royce. The engines are capable of generating of thrust. The RB211 engine was the first production three-spool engine, and turned Rolls-Royce from a significant player in the aero-engine industry into a global leader. Originally developed for the Lockheed L-1011 TriStar, it entered service in 1972 and was the exclusive engine to power the L-1011. Mismanagement of the initial development and consequent cost issues led to the effective nationalisation of Rolls-Royce Limited, to save the workforce and the engine businesses important to the UK and many other aerospace and aircraft operating companies. In the early 1970s, the engine was reckoned by the company to be capable of at least 50 years of continuous development. The RB211 was superseded in 1989 by the Rolls-Royce Trent family of engines when the RB211-524L was renamed the Trent. History Background In 1966, American Airlines anno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawker Siddeley Trident
The Hawker Siddeley HS-121 Trident (originally the de Havilland DH.121 and briefly the Airco DH.121) is a British airliner produced by Hawker Siddeley. In 1957, de Havilland proposed its DH.121 trijet design to a British European Airways (BEA) request. By 1960, de Havilland had been acquired by Hawker Siddeley. The Trident's maiden flight happened on 9 January 1962, and it was introduced on 1 April 1964, two months after its main competitor, the Boeing 727. By the end of the programme in 1978, 117 Tridents had been produced. The Trident was withdrawn from service in 1995. The jetliner is powered by three rear-mounted Rolls-Royce Spey low-bypass turbofans, it has a low swept wing and a T-tail. Advanced avionics allowed it to be the first airliner to make a blind landing in revenue service in 1965. The initial Trident 1/2 could seat 101-115 passengers over up to . The Trident 3 was stretched by to seat 180 over , and had an additional RB.162 booster engine in the tail. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawker Siddeley
Hawker Siddeley was a group of British manufacturing companies engaged in aircraft production. Hawker Siddeley combined the legacies of several British aircraft manufacturers, emerging through a series of mergers and acquisitions as one of only two such major British companies in the 1960s. In 1977, Hawker Siddeley became a founding component of the nationalised British Aerospace (BAe). Hawker Siddeley also operated in other industrial markets, such as locomotive building (through its ownership of Brush Traction) and diesel engine manufacture (through its ownership of Lister Petter). The company was once a constituent of the FTSE 100 Index. History Origins Hawker Siddeley Aircraft was formed in 1935 as a result of the purchase by Hawker Aircraft of the companies of J. D. Siddeley, the automotive and engine builder Armstrong Siddeley and the aircraft manufacturer Armstrong Whitworth Aircraft. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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