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Williams FJ44-3AP
The Williams FJ44 is a family of small, two-spool, turbofan engines produced by Williams International for the light business jet market. Until the recent boom in the very light jet market, the FJ44 was one of the smallest turbofans available for civilian applications. Although basically a Williams design, Rolls-Royce was brought into the project at an early stage to design, develop, and manufacture an air-cooled high-pressure (HP) turbine for the engine. The FJ44 first flew on July 12, 1988 on the Scaled Composites/Beechcraft Triumph aircraft. The Williams FJ33 is a newer, smaller engine based on the basic FJ44 design. Development Production started in 1992 with the thrust FJ44-1A. The FJ44-1C is derated to . The uprated to FJ44-2A was introduced in 1997. The thrust FJ44-3A was introduced in 2004. In 2005, a new low end version, the FJ44-1AP, was introduced, with a takeoff thrust. Released in 2007 was the new thrust FJ44-4. In 2010 this engine was in use on the Cessna ... [...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] |
Specific Fuel Consumption (thrust)
Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumption (grams/second) per unit of thrust (newtons, or N), hence ''thrust-specific''. This figure is inversely proportional to specific impulse, which is the amount of thrust produced per unit fuel consumed. TSFC or SFC for reaction engine, thrust engines (e.g. turbojets, turbofans, ramjets, rocket engine, rockets, etc.) is the mass of fuel needed to provide the net thrust for a given period e.g. lb/(h·lbf) (pounds of fuel per hour-pound of thrust) or g/(s·kN) (grams of fuel per second-kilonewton). Mass of fuel is used, rather than volume (gallons or litres) for the fuel measure, since it is independent of temperature. Specific fuel consumption of air-breathing jet engines at their maximum efficiency is more or less proportional to exhaust speed. The fuel consumption ''per mile'' or ''per kilometre'' is a more appropriate compar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virgin Atlantic GlobalFlyer
The Scaled Composites Model 311 Virgin Atlantic GlobalFlyer ( registered N277SF) is an aircraft designed by Burt Rutan in which Steve Fossett first flew a solo nonstop airplane flight around the world in slightly more than 67 hours (2 days 19 hours). The flight speed of 551 km/h set the world record for the fastest nonstop non-refueled circumnavigation, beating the mark set by the previous Rutan-designed Voyager aircraft at 9 days 3 minutes and a top speed of 196 km/h. The aircraft was owned by the pilot Steve Fossett, sponsored by Richard Branson's Virgin Atlantic airline, and built by Burt Rutan's company, Scaled Composites. The two companies subsequently worked together on Virgin Galactic. In February 2006, Fossett flew the GlobalFlyer for the longest aircraft flight distance in history: . Design and construction The GlobalFlyer was specifically designed to make an uninterrupted (non-refueled) circumnavigation of the globe with a single pilot. Unusual for a modern civil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Learjet 25
The Learjet 25 is an American ten-seat (two crew and eight passengers), twin-engine, high-speed business jet aircraft manufactured by Learjet. It is a stretched version of the Learjet 24. Development The first Model 25 flew on August 12, 1966, and the first delivery was in November 1967. The Learjet 25 is similar to the Model 24 but is 1.27 m (4 ft 2 in) longer, allowing for three additional passengers. In 1970 the Learjet 25B was produced along with the Learjet 25C in the same year. Type development continued with the Models 25D and 25G, which included more advanced CJ610-8A engines and a ceiling increase to 51,000 feet. By 2018, 1970s Learjet 25s were sold for under $200,000. Design Engines Two General Electric CJ610-6 single-rotor axial-flow turbojet engines are pylon-mounted on the aft fuselage. Each engine is rated at 2950 pounds of thrust at sea level. The engine compartments consist of an eight-stage axial-flow compressor directly coupled to a two-sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syberjet SJ30
The SyberJet SJ30 is a light business jet built by American company SyberJet Aircraft. In October 1986, Ed Swearingen announced the new design, a 6 to 8 person aircraft powered by two Williams FJ44 turbofans. Initially backed by Gulfstream Aerospace from October 1988, the ''Jaffe Group'' took over in September 1989 and the first SJ-30 flew on February 13, 1991 but development halted afterwards. The Taiwan-based Sino Swearingen Aircraft Corporation rescued the program, the jet was stretched by 4.3 ft (1.3 m) into the SJ30-2 with a wingspan increased by six feet (1.8 m). It made its first flight on November 8, 1996 and was certified by the FAA on October 27, 2005, before a first delivery by November 1, 2006. Dubai investors acquired Sino Swearingen in 2008, changing its name to ''Emivest'', but production ceased in November 2009 and the company filed for bankruptcy on October 26, 2010. On April 7, 2011, assets were sold to its aft fuselage supplier ''Metalcraft Technologies'', ren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scaled Composites Proteus
The Scaled Composites Model 281 Proteus is a tandem-wing high-altitude long-endurance aircraft designed by Burt Rutan to investigate the use of aircraft as high-altitude telecommunications relays. The Proteus is a multi-mission vehicle able to carry various payloads on a ventral pylon. The Proteus has an extremely efficient design and can orbit a point at over 19,800 m for more than 18 hours. It is currently owned by Northrop Grumman. Design and development Proteus has an all-composite airframe with graphite-epoxy sandwich construction. Its wingspan of is expandable to with removable wingtips installed. Proteus is an "optionally piloted" aircraft ordinarily flown by two pilots in a pressurized cabin. However, it also has the capability to perform its missions semi-autonomously or flown remotely from the ground. Under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) project, NASA's Dryden Flight Research Center assisted Scaled Composites in develop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cessna Citation 550
The Cessna Citation II are light corporate jets built by Cessna as part of the Citation family. Stretched from the Citation I, the Model 550 was announced in September 1976, first flew on January 31, 1977, and was certified in March 1978. The II/SP is a single pilot version, the improved S/II first flew on February 14, 1984 and the Citation Bravo, a stretched S/II with new avionics and more powerful P&WC PW530A turbofans, first flew on April 25, 1995. The United States Navy adopted a version of the S/II as the T-47A. Production ceased in 2006 after of all variants were delivered. Design and development The Citation II (Model 550) was developed to provide the samw docile low-speed handling and good short-field performance as the preceding Citation I while addressing a primary criticism of that aircraft — its relatively slow cruise speed of around at altitude. The II stretches the Citation I fuselage by 1.14m (3 ft 9in), increasing seating capacity to ten (two pilot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cessna Citation 501
The Cessna 500 Citation I is a small business jet produced by Cessna, the basis of the Citation family. The Fanjet 500 prototype was announced in October 1968, first flew on September 15, 1969, and was certified as the 500 Citation on September 9, 1971. It was upgraded in 1976 as the ''Citation I'', and the 501 Citation I/SP single-pilot variant was introduced in 1977. Production ended in 1985 with 689 of all variants produced. The straight wing jet is powered by JT15D turbofans. The aircraft was developed into the Citation II. Development In the early 1960s, the three major American general aviation aircraft manufacturers—Beechcraft, Cessna and Piper–faced a competitive challenge in the form of two newly-developed light business jets, the Learjet 23 and the Aero Commander 1121 Jet Commander, which were much less expensive to buy and operate than previous business jets such as the North American Sabreliner and Hawker Siddeley HS.125. Previous efforts by Beechcraft and Cess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beechcraft Premier
The Beechcraft Premier I is a light business jet aircraft manufactured by the Beechcraft division of Hawker Beechcraft. The aircraft was designed to compete with the Cessna CitationJet series of aircraft.Airliners.net Premier I page. Retrieved: 23 August 2008. Development Design of the Premier I began early in 1994 under the designation PD-374 (PD for Preliminary Design), and development was authorized to continue early the following year. The aircraft was officially launched at the annual Convention in September 1995 and construction of the first prototype commenced late in 1996.[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAAB Sk60
The Saab 105 is a Swedish high-wing, twinjet trainer aircraft developed in the early 1960s as a private venture by Saab AB. The Swedish Air Force, which had opted to procure the type for various roles, issued the aircraft with the designation Sk 60. The Sk 60 entered service in 1967, replacing the ageing De Havilland Vampire fleet. The Swedish Air Force bought a total of 150 aircraft and another 40 were exported to Austria, designated Saab 105Ö. The Saab 105 is also the aircraft used by Swedish Air Force display team Team 60 and was formerly used by two display teams of the Austrian Air Force, "Karo As" and "Silver Birds". Development In 1959, development of what would be subsequently designated as the Saab 105 was initiated by Saab. The company had decided to develop the aircraft as a private venture and intended for the type to be capable of serving in a wide variety of military and civil capacities. In a military capacity, the 105 can be operated as a jet trainer, conduct ae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Full Authority Digital Engine Control
A full authority digital engine (or electronics) control (FADEC) is a system consisting of a digital computer, called an "electronic engine controller" (EEC) or "engine control unit" (ECU), and its related accessories that control all aspects of aircraft engine performance. FADECs have been produced for both piston engines and jet engines. History The goal of any engine control system is to allow the engine to perform at maximum efficiency for a given condition. Originally, engine control systems consisted of simple mechanical linkages connected physically to the engine. By moving these levers the pilot or the flight engineer could control fuel flow, power output, and many other engine parameters. The mechanical/hydraulic engine control unit for Germany's BMW 801 piston aviation radial engine of World War II was just one notable example of this in its later stages of development. This mechanical engine control was progressively replaced first by analog electronic engine control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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