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GE9X
The General Electric GE9X is a high-bypass turbofan developed by GE Aerospace exclusively for the Boeing 777X. It first ran on the ground in April 2016 and first flew on March 13, 2018; it powered the 777-9's maiden flight in early 2020. It received its Federal Aviation Administration (FAA) type certificate on September 25, 2020. Derived from the General Electric GE90 with a larger fan, advanced materials like ceramic matrix composites (CMCs), and higher bypass and compression ratios, it was designed to improve fuel efficiency by 10% compared to the GE90. It is rated at of thrust, which is 5,000 lbf (20 kN) less than the GE90 highest thrust variant, the GE90-115, rated at . Development In February 2012, GE announced studies on a more efficient derivative of the GE90, calling it the GE9X, to power both the -8 and -9 variants of the new Boeing 777X. It was to feature the same fan diameter as the GE90-115B with thrust decreased by to a new rating of per engine. The engine fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
777-9
The Boeing 777X is the latest series of the long-range, wide-body, twin-engine jetliners in the Boeing 777 family from Boeing Commercial Airplanes. The changes for 777X include General Electric GE9X engines, composite wings with folding wingtips, greater cabin width and seating capacity, and technologies from the Boeing 787. The 777X was launched in November 2013 with two variants: the 777-8 and the 777-9. The 777-8 provides seating for 395 passengers and has a range of while the 777-9 has seating for 426 passengers and a range of over . The 777X program was proposed in the early 2010s with assembly at the Boeing Everett Factory and the wings built at a new adjacent building. , there are 503 total orders for the 777X passenger and freighter versions from 12 customers. The 777-9 first flew on January 25, 2020. Deliveries have been delayed multiple times, with the earliest planned introduction having been for December 2019 delivery; Boeing expects the first aircraft to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing 777X
The Boeing 777X is the latest series of the Long-haul, long-range, Wide-body aircraft, wide-body, Twinjet, twin-engine jetliners in the Boeing 777 family from Boeing Commercial Airplanes. The changes for 777X include General Electric GE9X engines, composite material, composite wings with folding wingtips, greater cabin width and seating capacity, and technologies from the Boeing 787. The 777X was launched in November 2013 with two variants: the 777-8 and the 777-9. The 777-8 provides seating for 395 passengers and has a range of while the 777-9 has seating for 426 passengers and a range of over . The 777X program was proposed in the early 2010s with assembly at the Boeing Everett Factory and the wings built at a new adjacent building. , there are List of Boeing 777X orders and deliveries, 503 total orders for the 777X passenger and freighter versions from 12 customers. The 777-9 first flew on January 25, 2020. Deliveries have been delayed multiple times, with the earliest plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric GE90
The General Electric GE90 is a family of High-bypass turbofan engine, high-bypass turbofan aircraft engines built by GE Aerospace for the Boeing 777, with thrust ratings from . It entered service with British Airways in November 1995. It is one of three engines for the 777-200 and -200ER, and the exclusive engine of the -200LR, -300ER, and 777F. It was the largest jet engine, until being surpassed in January 2020 by its successor, the General Electric GE9X, GE9X, which has a larger fan diameter by . However, the GE90-115B, the most recent variant of the GE90, is rated for a higher thrust (115,000 lbs) than the GE9X. Background In the early 1980s, GE began to develop an unducted fan (UDF) engine, which was thought to be a more fuel-efficient option to propel short-haul airliners, a compelling proposition after the 1979 oil crisis. NASA gave GE a grant in February 1984 to continue its research, eventually building the experimental General Electric GE36, GE36. One of the major inn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GE Aerospace
General Electric Company, doing business as GE Aerospace, is an American aircraft engine supplier that is headquartered in Evendale, Ohio, outside Cincinnati. It is the legal successor to the original General Electric Company founded in 1892, which split into three separate companies between November 2021 and April 2024, adopting the trade name GE Aerospace after divesting its healthcare and energy divisions. GE Aerospace both manufactures engines under its name and partners with other manufacturers to produce engines. 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 2020, CFM International holds 39% of the world's commercial aircraft engine market share (while GE Aerospace itself holds a further 14%). GE Aerospace's main competitors in the engine market are Pratt & Whitney and Rolls-Royce. The division operated under the name of General Elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric GEnx
The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aerospace for the Boeing 747-8 and Boeing 787, 787. The GEnx succeeded the General Electric CF6, CF6 in GE's product line. Development In 2004 the GEnx and the Rolls-Royce Trent 1000 were selected by Boeing following a run-off between the three big engine manufacturers. The GEnx uses some technology from the General Electric GE90, GE90 turbofan, including swept composite fan blades and the 10-stage high-pressure compressor (HPC) featured in earlier variants of the engine. The engine carries composite technology into the fan case. The engine market for the 787 is estimated at US$40 billion over the next 25 years. A first is the elimination of bleed air systems using high temperature/high pressure air from the propulsion engines to power aircraft systems such as the starting, air-conditioning and anti-ice systems. Both engines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbofan
A turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft engine, aircraft propulsion. The word "turbofan" is a combination of references to the preceding generation engine technology of the turbojet and the additional fan stage. It consists of a gas turbine engine which achieves mechanical energy from combustion, and 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 Propel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-bypass Turbofan
A turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft propulsion. The word "turbofan" is a combination of references to the preceding generation engine technology of the turbojet and the additional fan stage. It consists of a gas turbine engine which achieves mechanical energy from combustion, and 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 jet thrust relative t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceramic Matrix Composite
In materials science ceramic matrix composites (CMCs) are a subgroup of composite materials and a subgroup of ceramics. They consist of ceramic fibers embedded in a ceramic Matrix (composite), matrix. The fibers and the matrix both can consist of any ceramic material, including carbon and carbon fibers. Introduction The motivation to develop CMCs was to overcome the problems associated with the conventional technical ceramics like alumina, silicon carbide, aluminum nitride, silicon nitride or zirconia – they fracture easily under mechanical or thermo-mechanical loads because of cracks initiated by small defects or scratches. The crack resistance is very low, as in glass. To increase the crack resistance or fracture toughness, particles (so-called Monocrystalline whisker, monocrystalline ''whiskers'' or ''platelets'') were embedded into the matrix. However, the improvement was limited, and those products found application only in some ceramic cutting tools. The integration of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling 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 Magazine, 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 outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evendale, Ohio
Evendale (pronounced ) is a village in Hamilton County, Ohio, United States, within the Cincinnati metropolitan area. The population was 2,669 at the 2020 census. Geography According to the United States Census Bureau, the village has a total area of , all land. Demographics 2020 census As of the census of 2020, there were 2,669 people living in the village, for a population density of 559.66 people per square mile (216.10/km2). There were 1,073 housing units. The racial makeup of the village was 83.9% White, 7.1% Black or African American, 0.0% Native American, 3.8% Asian, 0.0% Pacific Islander, 0.9% from some other race, and 4.3% from two or more races. 1.3% of the population were Hispanic or Latino of any race. There were 940 households, out of which 31.4% had children under the age of 18 living with them, 78.4% were married couples living together, 6.0% had a male householder with no spouse present, and 15.2% had a female householder with no spouse present. 12.6% ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rime Ice
Rime ice forms when supercooled water droplets freeze onto surfaces. In the atmosphere, there are three basic types of rime ice: *Soft rime forms when supercooled water freezes under calm wind conditions. It is milky and crystalline, like sugar, and similar to hoar frost. *Hard rime forms by rapid freezing of supercooled water under at least moderate wind conditions. The droplets freeze more or less individually, leaving air gaps. *Clear ice forms by slow freezing of supercooled water. Clear ice is typically transparent and homogeneous. Its amorphous and dense structure makes it adhesive. Soft and hard rime are less dense than clear ice and less adhesive, thus generally cause less damage. Glaze ice is similar in appearance to clear ice, however it is the result of a completely different process, occurring during freezing rain or freezing drizzle, drizzle. Rime ice also forms when icing conditions, ice forms on the surface of an aircraft, particularly on the leading edges and co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peebles, Ohio
Peebles is a village in Adams County, Ohio, United States. It is east of Cincinnati. The population was 1,774 at the 2020 census. History Peebles was founded in 1881 with the building of the railroad through that territory. It was named for John G. Peebles, who was instrumental in bringing the railroad to the settlement. That railroad was the Cincinnati & Eastern Railroad, today the Cincinnati Eastern Railroad (CCET). Geography According to the United States Census Bureau, the village has a total area of , all land. Demographics The village's estimated median household income was $19,058 in 2009, and the median income for a family was $30,390. The village's per capita income was $13,739. About 27.1% of residents of the village were below the poverty line, including 26.3% for White residents, 100% for African American residents, 0% for Hispanic and Latino residents, 100% for Native American residents, and 37.6% of residents of two or more races. 2010 census As of the cens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
