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PW1100G
The Pratt & Whitney PW1000G, also called the Geared Turbofan (GTF), is a high-bypass geared turbofan engine family produced by Pratt & Whitney. After many demonstrators, the program was launched with the Mitsubishi MRJ's PW1200G in March 2008, and it was first flight tested in July 2008. The first variant to be certified was the PW1500G for the Airbus A220 in February 2013. The program cost is estimated at $10 billion. The gearbox between the fan and the low-pressure spool allows each to spin at its optimal speed, allowing a higher bypass ratio for a better propulsive efficiency. Pratt & Whitney claims the engine is 16% more fuel efficient than the previous generation, and up to 75% quieter. The first variant to enter service was the PW1100G for the A320neo in January 2016. The engine had teething problems after its introduction, extending to grounded aircraft and inflight failures, solved afterwards. The variants can generate 15,000 to 33,000 lbf (67 to 147 kN) of thrust. Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A320neo
The Airbus A320neo family is a development of the A320 family of narrow-body airliners produced by Airbus. The A320neo family (''neo'' for "new engine option") is based on the previous A319, A320 and A321 ( enhanced variant), which was then renamed A320ceo, for "current engine option". Re-engined with CFM LEAP-1A or Pratt & Whitney PW1000G engines and fitted with sharklets as standard, it is 15% to 20% more fuel efficient than the A320ceo (Enhanced) family. It was launched on 1 December 2010, made its first flight on 25 September 2014 and was introduced by Lufthansa on 25 January 2016. By 2019, the A320neo had a 60% market share against the competing Boeing 737 MAX. , a total of 8,502 A320neo family aircraft had been ordered by more than 130 customers, of which 2,341 aircraft had been delivered. The global A320neo fleet had completed more than 5.51 million flights over 11 million block hours without accidents. Development In 2006 Airbus started the A320 Enhanced (A320E) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airbus A320neo Family
The Airbus A320neo family is a development of the A320 family of narrow-body airliners produced by Airbus. The A320neo family (''neo'' for "new engine option") is based on the previous A319, A320 and A321 ( enhanced variant), which was then renamed A320ceo, for "current engine option". Re-engined with CFM LEAP-1A or Pratt & Whitney PW1000G engines and fitted with sharklets as standard, it is 15% to 20% more fuel efficient than the A320ceo (Enhanced) family. It was launched on 1 December 2010, made its first flight on 25 September 2014 and was introduced by Lufthansa on 25 January 2016. By 2019, the A320neo had a 60% market share against the competing Boeing 737 MAX. , a total of 8,502 A320neo family aircraft had been ordered by more than 130 customers, of which 2,341 aircraft had been delivered. The global A320neo fleet had completed more than 5.51 million flights over 11 million block hours without accidents. Development In 2006 Airbus started the A320 Enhanced (A320E) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airbus A220
The Airbus A220 is a family of five-abreast narrow-body airliners by Airbus Canada Limited Partnership. It was originally designed by Bombardier and had two years in service as the Bombardier CSeries. The program was launched on 13 July 2008, the smaller A220-100 (formerly CS100) made its maiden flight on 16 September 2013, was awarded an initial type certification by Transport Canada on 18 December 2015, and entered service on 15 July 2016 with launch operator Swiss Global Air Lines. The longer A220-300 (formerly CS300) first flew on 27 February 2015, received an initial type certification on 11 July 2016, and entered service with airBaltic on 14 December 2016. Powered by Pratt & Whitney PW1500G geared turbofan engines under its wings, the twinjet features fly-by-wire flight controls, a carbon composite wing, an aluminium-lithium fuselage and optimised aerodynamics for better fuel efficiency. The aircraft family offers maximum take-off weights from , and cover a range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geared Turbofan
The geared turbofan is a type of turbofan aircraft engine, with a gearbox between the fan and the low pressure shaft to spin each at optimum angular velocities. Technology In a conventional turbofan, a single shaft (the "low-pressure" or LP shaft) connects the fan, the low-pressure compressor and the low-pressure turbine (a second concentric shaft connects the high-pressure compressor and high-pressure turbine). In this configuration, the maximum tip speed for the larger radius fan limits the rotational speed for the LP shaft and thus the LP compressor and turbine. At high bypass ratios (and thus high radius ratios) the tip speeds of the LP turbine and LP compressor must be relatively low, which means extra compressor and turbine stages are required to keep the average stage loadings and, therefore, overall component efficiencies to an acceptable level. In a geared turbofan, a planetary reduction gearbox between the fan and the LP shaft allows the latter to run at a higher ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PW308
The Pratt & Whitney Canada PW300 series is a family of turbofan jet engines developed by Pratt & Whitney Canada specifically for business jet applications. Design and development The PW 300 series has been developed in partnership with MTU who are responsible for the low pressure turbine. The first variant, the PW305A, has the following configuration and was designed with a core flexible enough for engines with take-off thrusts from 4,500 to 7,000 lb : a single-stage fan driven by a three-stage low pressure turbine, supercharging a four-stage axial/single-stage centrifugal high-pressure compressor, driven by a two-stage high-pressure turbine. An annular combustor is used. There is no forced mixing before the bypass and core streams leave the engine through a common nozzle. The engine is controlled with a dual channel Full Authority Digital Engine Control (FADEC) system. The PW307A is a new centre-line engine developed specifically for a tri-jet application on the Dassault Falc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MTU Aero Engines
MTU Aero Engines AG is a German aircraft engine manufacturer. MTU develops, manufactures and provides service support for military and civil aircraft engines. MTU Aero Engines was formerly known as MTU München. History While the Munich-based engine manufacturer Rapp Motorenwerke, and subsequently BMW, had produced aircraft engines since 1913, the modern company regards the formal date of its formation as being 1934, the year in which ''BMW Flugmotorenbau GmbH'' was spun-off from BMW. This step was initiated by the Ministry of Aviation in order to disguise the planned rearmament of the Luftwaffe – as a standalone limited company the ''Flugmotorenbau GmbH'' had less strict disclosure requirements. Additionally, BMW aimed at outsourcing the unforeseeable risk of contributing to the German rearmament. In 1936, BMW built an aircraft engine plant in Allach near Munich, which are the headquarters of MTU Aero Engines today. In 1940, the plant was expanded significantly to start larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Budget Of NASA
As a federal agency, the National Aeronautics and Space Administration (NASA) receives its funding from the annual federal budget passed by the United States Congress. The following charts detail the amount of federal funding allotted to NASA each year over its history to pursue programs in aeronautics research, robotic spaceflight, technology development, and human space exploration programs. Annual budget NASA's budget for financial year (FY) 2020 is $22.6 billion. It represents 0.48% of the $4.7 trillion the United States plans to spend in the fiscal year. Since its inception, the United States has spent nearly US$650 billion (in nominal dollars) on NASA. Notes for table: Sources for a part of these data: U.S. Office of Management and Budget (OMB) (needs proper citation-link, numbers here differ from NASA Pocket Statistics),Air Force Association's Air Force Magazine 2007 Space Almanac Secondary references [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-aisle
A narrow-body aircraft or single-aisle aircraft is an airliner arranged along a single aisle, permitting up to 6-abreast airline seat, seating in a aircraft cabin, cabin less than in width. In contrast, a wide-body aircraft is a larger airliner usually configured with multiple aisles and a fuselage diameter of more than , allowing at least seven-abreast seating and often more travel classes. Market Historically, beginning in the late 1960s and continuing through the 1990s, twin engine narrow-body aircraft, such as the Boeing 737 Classic, McDonnell-Douglas MD-80 and Airbus A320 were primarily employed in short to medium-haul markets requiring neither the range nor the passenger-carrying capacity of that period's wide-body aircraft. The re-engined B737 MAX and A320neo jets offer 500 miles more range, allowing them to operate the 3,000 miles transatlantic flights between the eastern U.S. and Western Europe, previously dominated by wide-body aircraft. Norwegian Air Shuttle, JetBl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GE Aviation
GE Aviation, a subsidiary of General Electric, is headquartered in Evendale, Ohio, outside Cincinnati. GE Aviation is among the top aircraft engine suppliers, and offers engines for the majority of commercial aircraft. GE Aviation is part of the General Electric conglomerate, which is one of the world's largest corporations. The division operated under the name of General Electric Aircraft Engines (GEAE) until September 2005. GE Aviation's main competitors in the engine market are Pratt & Whitney and Rolls-Royce. Not only does GE Aviation manufacture engines under its own umbrella, it also partners with other manufacturers. CFM International, the world’s leading supplier of aircraft engines and GE’s most successful partnership, is a 50/50 joint venture with the French company Safran Aircraft Engines. As of 2019, CFM International holds 39% of the world's commercial aircraft engine market share (while GE Aviation itself holds a further 16%). GE and Safran also operate anot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CFM International
CFM International is a 50/50 Franco-American joint venture between GE Aviation and Safran Aircraft Engines (formerly known as Snecma). It was formed to build and support the CFM56 series of turbofan engines. The company is the world’s leading supplier of commercial aircraft engines, delivering to date more than 37,500 of its engines to more than 570 operators. As of 2019, it holds 39% of the world's commercial aircraft engine market share. The names of CFM International and the CFM56 product line are derived from the two parent companies' commercial engine designations: GE's CF6 and Snecma's M56 (its 56th project). In 2016 CFM delivered 1,665 CFM56 and 77 LEAP, and booked 2,677 orders : 876 CFM56 and 1,801 LEAP for US$36 billion at list price. The LEAP engine backlog exceeds 12,200 which is valued at more than US$170 billion at list price. In 2017, CFM delivered 1,900 engines including 459 LEAPs, of which it plans to deliver 1,200 in 2018, 1,800 in 2019 and more than 2,000 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in sea water, aqua regia, and chlorine. Titanium was discovered in Cornwall, Great Britain, by William Gregor in 1791 and was named by Martin Heinrich Klaproth after the Titans of Greek mythology. The element occurs within a number of minerals, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere; it is found in almost all living things, as well as bodies of water, rocks, and soils. The metal is extracted from its principal mineral ores by the Kroll and Hunter processes. The most common compound, titanium dioxide, is a popular photocatalyst and is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl4), a component of smoke screens and catalysts; and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
