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GE9X
The General Electric GE9X is a high-bypass turbofan developed by GE Aviation 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 -8/9 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 for t ... [...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 777X features new GE9X engines, new 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 384 passengers and has a range of 8,730 nmi (16,170 km) while the 777-9 has seating for 426 passengers and a range of over 7,285 nmi (13,500 km). The 777X program was proposed in the early 2010s with assembly at the Boeing Everett Factory and the wings built at a new building adjacent to the Everett factory. , there are 341 total orders for the 777X passenger and freighter versions from eight identified customers and other buyers. The 777-9 first flew on January 25, 2020, with deliveries delayed multiple times and expected to commence in 2025. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing 777X
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 777X features new GE9X engines, new 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 384 passengers and has a range of 8,730 nmi (16,170 km) while the 777-9 has seating for 426 passengers and a range of over 7,285 nmi (13,500 km). The 777X program was proposed in the early 2010s with assembly at the Boeing Everett Factory and the wings built at a new building adjacent to the Everett factory. , there are 341 total orders for the 777X passenger and freighter versions from eight identified customers and other buyers. The 777-9 first flew on January 25, 2020, with deliveries delayed multiple times and expected to commence i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric GE90
The General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aviation for the Boeing 777, with thrust ratings from . It entered service with British Airways in November 1995. It is one of three options for the 777-200, -200ER, and -300 versions, 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 GE9X, which has a larger diameter fan. The GE90, however, is still more powerful than its successor, the GE9X. Development The GE90 was developed from the NASA 1970s Energy Efficient Engine, a prototype variant of the General Electric CF6. GE's GE36 Un-Ducted Fan ( propfan) was meant to replace the CFM International CFM56 high-bypass turbofan which was initially uncompetitive against the rival IAE V2500. However, when the V2500 ran into technical problems, sales of the CFM56 took off. GE was not interested in having the GE36 cannibalize the CFM56, and wh ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Aviation for the Boeing 787 and 747-8. The GEnx is intended to succeed the CF6 in GE's product line. Development 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 GE90 turbofan, including swept composite fan blades and the 10-stage 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 enable the move towards the ''More Electric Aircraft'', that is, the concept ... [...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 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 jet thrust relative to fan thrust are known as ''low-bypass turbofans'', ... [...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. The fibers and the matrix both can consist of any ceramic material, whereby carbon and carbon fibers can also be regarded as a ceramic material. 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 ''whiskers'' or ''platelets'') were embedded into the matrix. However, the improvement was limited, and the products have found application only in some ceramic cutting tools. So far only th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peebles, Ohio
Peebles is a village in Meigs Township, Adams County, Ohio, United States. It is sixty-four miles east of Cincinnati. The population was 1,782 at the 2010 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). Gallery File:PeeblesOH1.JPG, Peebles corporation limit sign. File:PeeblesOH2.JPG, Looking south on Main Street (Ohio Highway 41) in Peebles. File:PeeblesOH3.JPG, Water tower in Peebles. File:PeeblesOH4.JPG, 1957 Cairn of Peace located on the corner of Main and Elm Streets in Peebles. File:Peebles, Ohio sign.jpg, Peebles Ohio Historical Marker outlining the history of Peebles. Geography According to the United States Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ETOPS
ETOPS () is an acronym for ''Extended-range Twin-engine Operations Performance Standards''—a special part of flight rules for one-engine-inoperative flight conditions. The International Civil Aviation Organization (ICAO) coined the acronym for twin-engine aircraft operation in airspace further than one hour from a diversion airport at the one-engine-inoperative cruise speed, over water or remote lands, or on routes previously restricted to three- and four-engine aircraft. History The first heavier-than-air, non-stop transatlantic flight was made in 1919, by John Alcock and Arthur Brown, in a twin-engine Vickers Vimy, from Newfoundland to Ireland in sixteen hours. By 1936 the Bureau of Air Commerce (the precursor to the FAA) restricted operations to within of an airport, regardless of the engine number, about 60 minutes with one engine inoperative. In 1953 the FAA "60-minute rule" restricted twin-engine aircraft to a 60-minute diversion area, based on the piston engine r ... [...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 2,767 at the 2010 census. Geography Evendale is located at (39.247509, -84.431094). According to the United States Census Bureau, the village has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 2,767 people, 1,063 households, and 877 families living in the village. The population density was . There were 1,098 housing units at an average density of . The racial makeup of the village was 88.0% White, 6.5% African American, 0.3% Native American, 4.3% Asian, 0.3% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 0.4% of the population. There were 1,063 households, of which 27.8% had children under the age of 18 living with them, 75.8% were married couples living together, 4.6% had a female householder with no husband present, 2.1% had a male householder with n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victorville, California
Victorville is a city in Victor Valley in San Bernardino County, California. Its population as of the 2020 census was 134,810. History In 1858, Aaron G. Lane came to what is now known as Victorville and founded a waystation called "Lane's Crossing." For many years it provided shelter and supplies for people journeying across the desert from the east to San Bernardino. Lane's Crossing was on the Mojave River on today's Turner Road, two miles north of where Interstate 15 crosses the river. Lane was a veteran of the Mexican–American War who had had malaria during that war. Originally he migrated west to join the California gold rush, but he learned that he could make a better living selling supplies to the miners. Lane settled in Ione, near Sutter's Mill in northern California, during those years, but migrated to San Bernardino in 1857. He settled on the Mojave River in 1858, where he established his waystation. He later sold out to Texan John Fry Miller, who changed the na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
