|
Avro Jetliner
The Avro Canada C102 Jetliner was a Canadian prototype medium-range turbojet-powered jet airliner built by Avro Canada in 1949. It was beaten to the air by only 13 days by the de Havilland Comet, thereby becoming the second purpose-built jet airliner in the world, while both were preceded by the Avro Lancastrian, Nene Lancastrian, and the Vickers VC.1 Viking, Nene Viking, both of which were conversions of piston engine airliners. The name "Jetliner" was chosen as a shortening of the term "jet airliner", a term which is still in popular usage. The aircraft was considered suitable for busy routes along the US eastern seaboard and garnered intense interest, notably from Howard Hughes who even offered to start production under license. However, continued delays in Avro Canada's all-weather Interceptor aircraft, interceptor project, the CF-100 Canuck, led to an order to stop working on the project in 1951, with the prototype Jetliner later cut up for scrap. Design and development Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Airliner
A jet airliner or jetliner is an airliner powered by jet engines (passenger jet aircraft). Airliners usually have twinjet, two or quadjet, four jet engines; trijet, three-engined designs were popular in the 1970s but are less common today. Airliners are commonly classified as either the large wide-body aircraft, medium narrow-body aircraft and smaller regional jet. Most airliners today are powered by jet engines, because they are capable of safely operating at high speeds and generate sufficient thrust to power large-capacity aircraft. The first jetliners, introduced in the 1950s, used the simpler turbojet engine; these were quickly supplanted by designs using turbofans, which are quieter and more fuel-efficient. History Early history The first airliners with turbojet propulsion were experimental conversions of the Avro Lancastrian piston-engined airliner, which were flown with several types of early jet engine, including the de Havilland Ghost and the Rolls-Royce Nene. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armstrong Siddeley Mamba
The Armstrong Siddeley Mamba was a British turboprop engine produced by Armstrong Siddeley in the late 1940s and 1950s, producing around 1,500 effective horsepower (1,100 kW). Armstrong Siddeley gas turbine engines were named after snakes. Design and development The Mamba was a compact engine with a 10-stage axial compressor, six combustion chambers and a two-stage power turbine. The epicyclic reduction gearbox was incorporated in the propeller spinner. Engine starting was by cartridge. The Ministry of Supply designation was ASMa (Armstrong Siddeley Mamba). The ASMa.3 gave 1,475 ehp and the ASMa.6 was rated at 1,770 ehp. A 500-hour test was undertaken in 1948 and the Mamba was the first turboprop engine to power the Douglas DC-3, when in 1949, a Dakota testbed was converted to take two Mambas. The Mamba was also developed into the form of the Double Mamba, which was used to power the Fairey Gannet anti-submarine aircraft for the Royal Navy. This was essentially two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James C
James may refer to: People * James (given name) * James (surname) * James (musician), aka Faruq Mahfuz Anam James, (born 1964), Bollywood musician * James, brother of Jesus * King James (other), various kings named James * Prince James (other) * Saint James (other) Places Canada * James Bay, a large body of water * James, Ontario United Kingdom * James College, York, James College, a college of the University of York United States * James, Georgia, an unincorporated community * James, Iowa, an unincorporated community * James City, North Carolina * James City County, Virginia ** James City (Virginia Company) ** James City Shire * James City, Pennsylvania * St. James City, Florida Film and television * James (2005 film), ''James'' (2005 film), a Bollywood film * James (2008 film), ''James'' (2008 film), an Irish short film * James (2022 film), ''James'' (2022 film), an Indian Kannada-language film * "James", a television Adventure Time (season 5)#ep42, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls Royce Derwent Jet Engine
{{disambiguation ...
Rolls may refer to: People * Charles Rolls (engraver) (1799–1885), engraver * Charles Rolls (1877–1910), Welsh motoring and aviation pioneer, co-founder of Rolls-Royce Limited * John Etherington Welch Rolls (1807–1870), British jurist and art collector * John Rolls, 1st Baron Llangattock (1837–1912), British landowner and politician * John Rolls, 2nd Baron Llangattock (1870–1916), British barrister and soldier * Rolls Gracie, Brazilian jiu-jitsu fighter Other uses * Rolls (restaurant chain), in Finland * Rolls Razor, a British safety razor and washing machine manufacturer See also *Rolls-Royce (other) *Roll (other) Roll may refer to: Physics and engineering * Rolling, a motion of two objects with respect to each-other such that the two stay in contact without sliding * Roll angle (or roll rotation), one of the 3 angular degrees of freedom of any stiff bod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Derwent 5
The Rolls-Royce RB.37 Derwent is a 1940s British centrifugal compressor turbojet engine, the second Rolls-Royce jet engine to enter production. It was an improved version of the Rolls-Royce Welland, which itself was a renamed version of Frank Whittle's Power Jets W.2B. Rolls-Royce inherited the Derwent design from Rover when they took over their jet engine development in 1943. Design and development Rover When Rover was selected for production of Whittle's designs in 1941 they set up their main jet factory at Barnoldswick, staffed primarily by Power Jets personnel. Rover's Maurice Wilks was also aware of the potential of a more efficient design that removed the Power Jets' "folded" layout with a straight-through airflow. It would also simplify production. This layout had already been used by Whittle in his drawings of the W2Y and W3X and was also being pursued by the de Havilland Company with the Halford H.1. Wilks set up a design office at Waterloo Mill, Clitheroe with A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert James Symington
Herbert James Symington, (November 22, 1881 – September 28, 1965) was a Canadian lawyer and businessman. From 1941 to 1947 he was president of Trans-Canada Airlines. He was the founding president of the International Air Transport Association The International Air Transport Association (IATA ) is an airline trade association founded in 1945. IATA has been described as a cartel since, in addition to setting technical standards for airlines, IATA also organized tariff conferences tha .... 1881 births 1965 deaths Lawyers in Manitoba 20th-century Canadian businesspeople Canadian Companions of the Order of St Michael and St George Members of the King's Privy Council for Canada {{Canada-business-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Smye
Frederick Thomas Smye (August 6, 1916 – 1985) was a Canadian businessman. He was the president of Avro Aircraft Limited (Canada). He was born in Hamilton, Ontario, the son of Frederick Thomas Smye and Maude Givern, and was educated at Trinity College in Port Hope. In 1939, he married Dorothy Jean Carswell. Smye first worked with the Canadian aircraft industry during World War II in 1940 as an official in the New York, Washington and Ottawa offices of the Department of Munitions and Supply, eventually becoming Director of Aircraft Production. In 1944 he was appointed Assistant General Manager of Federal Aircraft Limited in Montreal to wind up the Canadian Government's aircraft production program. At the close of the war he played a key role in establishing the British Hawker Siddeley Group in Canada through the formation of A.V. Roe Canada Limited. On August 1, 1945, Smye became the first employee of A.V. Roe Canada established in the former Victory Aircraft facilities at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cost Overrun
A cost overrun, also known as a cost increase or budget overrun, involves unexpected incurred costs. When these costs are in excess of budgeted amounts due to a value engineering underestimation of the actual cost during budgeting, they are known by these terms. Cost overruns are common in infrastructure, building, and technology projects. For IT projects, a 2004 industry study by the Standish Group found an average cost overrun of 43 percent; 71 percent of projects came in over budget, exceeded time estimates, and had estimated too narrow a scope; and total waste was estimated at $55 billion per year in the US alone. Many major construction projects have incurred cost overruns; cost estimates used to decide whether important transportation infrastructure should be built can mislead grossly and systematically. Cost overrun is distinguished from cost escalation, which is an ''anticipated'' growth in a budgeted cost due to factors such as inflation. Causes Recent works by Ahi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cost-plus Contract
A cost-plus contract, also termed a cost plus contract, is a contract such that a contractor is paid for all of its allowed expenses, ''plus'' an additional payment to allow for risk and incentive sharing.Cost-Plus Contracts Cost-reimbursement contracts contrast with s, in which the contractor is paid a negotiated amount regardless of incurred expenses. Histo ...
|
Ministry Of Transport
A ministry of transport or transportation is a ministry responsible for transportation within a country. It usually is administered by the ''minister for transport''. The term is also sometimes applied to the departments or other government agencies administering transport in nations who do not employ ministers. Specific responsibilities may include overseeing road safety, civil aviation, maritime transport, rail transport, developing government transportation policy, organizing public transport, and the maintenance and construction of infrastructural projects. Some ministries have additional responsibilities in related policy areas such as infrastructure, public works, waterworks, construction, communication, housing and economic activities, such as industry and trade Trade involves the transfer of goods and services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market. Traders g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holding (aeronautics)
In aviation, holding (or flying a hold) is a maneuver designed to delay an aircraft already in flight while keeping it within a specified airspace; i.e. "going in circles." Implementation A holding pattern for instrument flight rules (IFR) aircraft is usually a racetrack pattern based on a ''holding fix''. This ''fix'' can be a radio beacon such as a non-directional beacon (NDB) or VHF omnidirectional range (VOR). The fix is the start of the first turn of the racetrack pattern. Aircraft will fly towards the fix, and once there will enter a predefined racetrack pattern. A standard holding pattern uses right-hand turns and takes approximately 4 minutes to complete (one minute for each 180-degree turn, and two one-minute straight ahead sections). Deviations from this pattern can happen if long delays are expected; longer legs (usually two or three minutes) may be used, or aircraft with distance measuring equipment (DME) may be assigned patterns with legs defined in nautical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axial Compressor
An axial compressor is a gas compressor that can continuously pressurize gases. It is a rotating, airfoil-based compressor in which the gas or working fluid principally flows parallel to the axis of rotation, or axially. This differs from other rotating compressors such as centrifugal compressor, axi-centrifugal compressors and mixed-flow compressors where the fluid flow will include a "radial component" through the compressor. The energy level of the fluid increases as it flows through the compressor due to the action of the rotor blades which exert a torque on the fluid. The stationary blades slow the fluid, converting the circumferential component of flow into pressure. Compressors are typically driven by an electric motor or a steam or a gas turbine. Axial flow compressors produce a continuous flow of compressed gas, and have the benefits of high efficiency and large mass flow rate, particularly in relation to their size and cross-section. They do, however, require several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
