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Honeywell HTF7000
The Honeywell HTF7000 is a turbofan engine produced by Honeywell Aerospace. Rated in the range, the HTF7000 is used on the Bombardier Challenger 300/350, Gulfstream G280 and Embraer Legacy 500/450 and the Cessna Citation Longitude. Its architecture could be extended for a range of thrust. Operational history The engine was originally designated the AS907, which was changed in 2004 to HTF7000; the AS907 designation is still used for legal and regulatory use. By October 2016, 2.6 million hours had been logged by 1,400 in service engines and it has a 99.9% dispatch reliability rate. Average fuel consumption is about lb. per hour for a 7,765 lbf engine on a G280, to be compared to lb. per hour for a 4,420 lbf TFE731 on a G150. More than 3.5 million flight hours have been logged till October 2017, and the 2,000th engine should be delivered in 2018. Honeywell maintenance program is $447 for two engines per hour. Borescope inspections extends time between overhaul and some en ... [...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] |
Time Between Overhaul
Time between overhauls (abbreviated as TBO or TBOH) is the manufacturer's recommended number of running hours or calendar time before an aircraft engine or other component requires overhaul. On rotorcraft, many components have recommended or mandatory TBOs, including main rotor blades, tail rotor blades and gearboxes. For engines, the time between overhauls is generally a function of the complexity of the engine and how it is used. Piston-based engines are much more complex than turbine-powered engines, and generally have TBOs on the order of 1,200 to 2,000 hours of running time. They tend toward the lower number if they are new designs, or include boosting options such as a turbocharger. In comparison, jet engines and turboprop A turboprop is a turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine, and a propelling nozzle. Air enters the intake and is compressed by the compressor. Fuel ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combustor
A combustor is a component or area of a gas turbine, ramjet, or scramjet engine where combustion takes place. It is also known as a burner, combustion chamber or flame holder. In a gas turbine engine, the ''combustor'' or combustion chamber is fed high-pressure air by the compression system. The combustor then heats this air at constant pressure as the fuel/air mix burns. As it burns the fuel/air mix heats and rapidly expands. The burned mix is exhausted from the combustor through the nozzle guide vanes to the turbine. In the case of a ramjet or scramjet engines, the exhaust is directly fed out through the nozzle. A combustor must contain and maintain stable combustion despite very high air flow rates. To do so combustors are carefully designed to first mix and ignite the air and fuel, and then mix in more air to complete the combustion process. Early gas turbine engines used a single chamber known as a can-type combustor. Today three main configurations exist: can, annular, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrifugal Compressor
Centrifugal compressors, sometimes called impeller compressors or radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. They achieve pressure rise by adding energy to the continuous flow of fluid through the rotor/impeller. The following equation shows this specific energy input. A substantial portion of this energy is kinetic which is converted to increased potential energy/static pressure by slowing the flow through a diffuser. The static pressure rise in the impeller may roughly equal the rise in the diffuser. Equation-0.1 : H = \left( \left( R \right)_2 - \left( R \right)_1 \right) :where the control volume nomenclature (illustrated in Figure-0.4) is: ::* subscript, is the impeller inlet location, station1 ::* subscript, is the impeller discharge/exit location, station2 ::* is the energy input per unit mass, units=(LP/m) ::* is the impeller's rotation speed, units=(radians/t) ::* is the radius of specified location, units=(L) ::* is ve ... [...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] |
Overall Pressure Ratio
In aeronautical engineering, overall pressure ratio, or overall compression ratio, is the ratio of the stagnation pressure as measured at the front and rear of the compressor of a gas turbine engine. The terms ''compression ratio'' and ''pressure ratio'' are used interchangeably. Overall compression ratio also means the ''overall cycle pressure ratio'' which includes intake ram. History of overall pressure ratios Early jet engines had limited pressure ratios due to construction inaccuracies of the compressors and various material limits. For instance, the Junkers Jumo 004 from World War II had an overall pressure ratio 3.14:1. The immediate post-war Snecma Atar improved this marginally to 5.2:1. Improvements in materials, compressor blades, and especially the introduction of multi-spool engines with several different rotational speeds, led to the much higher pressure ratios common today. Modern civilian engines generally operate between 40 and 55:1. The highest in-service is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AINonline
Aviation International News (AIN Publications / The Convention News Company) is a periodical and newspaper publisher about aviation, published through its web site and in hard copy. History The Convention News Company was founded by aviation editor James Holahan and publisher Wilson S. Leach in 1972 and published its first issues at that year's NBAA convention. Now branded as AIN Publications, it has branched into other aviation sectors and other products, and still publishes NBAA Convention News. In 2002, Aviation International News received an award for "excellent, accurate and insightful reporting of issues related to the business aviation industry" from the National Business Aviation Association at its 55th Annual Meeting & Convention. Publications AIN Publications publishes the following media: * Aviation International News is a monthly trade publication in print and digital focused on business aviation, delivered to 38,000 readers; * AINalerts is a workweek daily n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombardier Challenger 350
The Bombardier Challenger 300 is a range business jet made by Bombardier Aerospace. Announced at the 1999 Paris Air Show, it made its maiden flight on 14 August 2001, received its Canadian type approval on 31 May 2003 and was introduced on 8 January 2004. The Challenger 350 is a slightly improved range variant which first flew on 2 March 2013 and was approved on 11 June 2014. Around 450 Challenger 300 have been delivered, and 350 Challenger 350 by July 2020. Development Challenger 300 The baseline Challenger 300 was launched at the 1999 Paris Air Show as the Bombardier Continental. An all-new design, it received Transport Canada type approval on 31 May 2003, followed on 4 June by US FAR 25 certification and on 31 July by European JAR 25 approval. Assembled in Wichita, Kansas, it entered commercial service on 8 January 2004 with Flexjet. The new design is not developed from the Challenger 600 or its variants. Its supercritical wings have a fixed leading-edge and a 27% s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation International News
Aviation International News (AIN Publications / The Convention News Company) is a periodical and newspaper publisher about aviation, published through its web site and in hard copy. History The Convention News Company was founded by aviation editor James Holahan and publisher Wilson S. Leach in 1972 and published its first issues at that year's NBAA convention. Now branded as AIN Publications, it has branched into other aviation sectors and other products, and still publishes NBAA Convention News. In 2002, Aviation International News received an award for "excellent, accurate and insightful reporting of issues related to the business aviation industry" from the National Business Aviation Association at its 55th Annual Meeting & Convention. Publications AIN Publications publishes the following media: * Aviation International News is a monthly trade publication in print and digital focused on business aviation, delivered to 38,000 readers; * AINalerts is a workweek daily n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avro RJX
The British Aerospace 146 (also BAe 146) is a short-haul and regional airliner that was manufactured in the United Kingdom by British Aerospace, later part of BAE Systems. Production ran from 1983 until 2001. Manufacture by Avro International Aerospace of an improved version known as the Avro RJ began in 1992. A further-improved version with new engines, the Avro RJX, was announced in 1997, but only two prototypes and one production aircraft were built before production ceased in 2001. With 387 aircraft produced, the Avro RJ/BAe 146 is the most successful British civil jet airliner programme. The BAe 146/Avro RJ is a high-wing cantilever monoplane with a T-tail. It has four geared turbofan engines mounted on pylons underneath the wings, and has a retractable tricycle landing gear. The aircraft operates very quietly, and as such has been marketed under the name Whisperjet. It sees wide usage at small, city-based airports such as London City Airport. In its primary role, it serve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Daily News
''Flight International'' is a monthly magazine focused on aerospace. Published in the United Kingdom and founded in 1909 as "A Journal devoted to the Interests, Practice, and Progress of Aerial Locomotion and Transport", it is the world's oldest continuously published aviation news magazine. ''Flight International'' is published by DVV Media Group. Competitors include Jane's Information Group and ''Aviation Week''. Former editors of, and contributors include H. F. King, Bill Gunston, John W. R. Taylor and David Learmount. History The founder and first editor of ''Flight'' was Stanley Spooner. He was also the creator and editor of ''The Automotor Journal'', originally titled ''The Automotor Journal and Horseless Vehicle''.Guide To British Industrial History: Biographies: ''Stan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dassault Falcon 7X
The Dassault Falcon 7X is a large-cabin, range business jet manufactured by Dassault Aviation, the second largest of its Dassault Falcon line. Launched at 2001 Paris Air Show, its first flight was on 5 May 2005 and it entered service on 15 June 2007. The Falcon 8X is derived from the 7X with a longer range of afforded by engine optimizing, aerodynamic refinements and an increase in fuel capacity. Featuring an S-duct central engine, it and the Falcon 900 are the only two trijets in production. Falcon 7X Development Dassault launched the FNX at the 2001 Paris Air Show, aiming for a 10,500km (5,700nm) range at Mach 0.88, up from the Falcon 900EX's 8,300 km at Mach 0.84. Its new high-speed wing is longer with 5° higher wing sweep than the 900 wing; while its fuselage is 20% longer, it keeps the same cabin cross-section but with a new curved windscreen. The trijet has a combined thrust of 18,000lb (80kN) provided by Honeywell FX5s, a new design, or a Pratt & Whitney ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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