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Boeing 787 Dreamliner
The Boeing 787 Dreamliner is an American wide-body airliner developed and manufactured by Boeing Commercial Airplanes. After dropping its unconventional Sonic Cruiser project, Boeing announced the conventional 7E7 on January 29, 2003, which focused largely on efficiency. The program was launched on April 26, 2004, with an order for 50 aircraft from All Nippon Airways (ANA), targeting a 2008 introduction. On July 8, 2007, a prototype 787 without major operating systems was rolled out; subsequently the aircraft experienced multiple delays, until its maiden flight on December 15, 2009. Type certification was received in August 2011, and the first 787-8 was delivered in September 2011 and entered commercial service on October 26, 2011, with ANA. At launch, Boeing targeted the 787 with 20% less fuel burn compared to aircraft like the Boeing 767. It could carry 200 to 300 passengers on point-to-point routes up to , a shift from hub-and-spoke travel. The twinjet is powered ... [...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] |
Twinjet
A twinjet or twin-engine jet is a jet aircraft powered by two jet engine, engines. A twinjet is able to fly well enough to land with a single working engine, making it safer than a single-engine aircraft in the event of failure of an engine. Fuel efficiency of a twinjet is better than that of aircraft with more engines. These considerations have led to the widespread use of aircraft of all types with twin engines, including airliners, fixed-wing military aircraft, and others. Aircraft configurations There are three common configurations of twinjet aircraft. The first, common on large aircraft such as airliners, has a podded engine usually mounted beneath, or occasionally above or within, each wing. Most notable examples of such a configuration are the Boeing 737 and Airbus A320. The second has one engine mounted on each side of the rear fuselage, close to its empennage, used by many business jets, although some airliners like the Fokker 70, Douglas DC-9 and COMAC ARJ21 utilise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Singapore Airlines
Singapore Airlines (abbreviation: SIA or SQ) is the flag carrier of Singapore with its Airline hub, hub located at Changi Airport. Considered to be one of the world's best carriers, the airline is ranked as a 5-star airline as well as ranked as the world's best airline by Skytrax five times. Singapore Airlines operates a variety of Airbus and Boeing aircraft, namely the Airbus A350-900, Airbus A380, Boeing 737 MAX 8, Boeing 737-800, Boeing 747-400F, Boeing 747-400 Freighter, Boeing 777-300ER and Boeing 787-10. The airline is notable for highlighting the Singapore Girl as its central figure in the corporate branding segment and not significantly changing its livery throughout its history. Singapore Airlines has been a member of Star Alliance since April 2000. Singapore Airlines Group has more than 20 subsidiaries, including numerous airline-related subsidiaries. SIA Engineering Company handles maintenance, repair and overhaul (MRO) business across nine countries with a portfol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MTOW
The maximum takeoff weight (MTOW) or maximum gross takeoff weight (MGTOW) or maximum takeoff mass (MTOM) of an aircraft, also known as the maximum structural takeoff weight or maximum structural takeoff mass, is the maximum weight at which the pilot is allowed to attempt to take off, due to structural or other limits. The analogous term for rockets is gross lift-off mass, or GLOW. MTOW is usually specified in units of kilograms or pounds. MTOW is the heaviest weight at which the aircraft has been shown to meet all the airworthiness requirements applicable to it. It refers to the maximum permissible aircraft weight at the start of the takeoff run. MTOW of an aircraft is fixed and does not vary with altitude, air temperature, or the length of the runway to be used for takeoff or landing. Maximum permissible takeoff weight or "regulated takeoff weight", varies according to flap setting, altitude, air temperature, length of runway and other factors. It is different from one takeoff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing Everett Factory
The Boeing Everett Factory, officially the Everett Production Facility, is an airplane assembly facility operated by Boeing in Everett, Washington, United States. It sits on the north side of Paine Field and includes the largest building in the world by volume at over , which covers . The entire complex covers approximately and spans both sides of State Route 526 (named the Boeing Freeway). The factory was built in 1967 for the Boeing 747 and has since been expanded several times to accommodate new airliners, including the 767, 777, and 787 programs. More than 5,000 widebody aircraft have been built at the Everett factory since it opened. Facilities The Boeing Everett complex sits on in southwestern Everett, about north of Seattle. It includes up to 200 separate buildings and facilities, mostly on the north and east sides of Paine Field's main runway, and straddles both sides of State Route 526 (named the Boeing Freeway). The complex includes a fire station, a medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing South Carolina
Boeing South Carolina is an airplane assembly facility operated by Boeing in North Charleston, South Carolina, United States. Located on the grounds of the joint-use Charleston Air Force Base and Charleston International Airport, the site is the final assembly and delivery point for the Boeing 787 Dreamliner. Boeing opened the site in July 2011, after purchasing the facilities of suppliers Vought and Global Aeronautica in 2008 and 2009. The final assembly building covers and opened on November 12, 2011. As of September 28, 2017, the site employs 6,943 workers and contractors. History Sub-assembly site The site is located on the southern portions of the joint-use Charleston Air Force Base and Charleston International Airport located in the city of North Charleston, South Carolina. The site was initially established in 2004 to build components for the Boeing 787 Dreamliner. Instead of conventionally building the 787 from the ground up, Boeing assigned subcontractor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subcontractor
A subcontractor is a person or business which undertakes to perform part or all of the obligations of another's contract, and a subcontract is a contract which assigns part of an existing contract to a subcontractor. A general contractor, prime contractor or main contractor may hire subcontractors to perform specific tasks as part of an overall project to reduce costs or to mitigate project risks. In employing subcontractors, the general contractor hopes to receive the same or better service than the general contractor could have provided by itself, at lower overall risk. The European Union has recognised the need to make provision for sub-contracting in its rules on public procurement, as arrangements for sub-contracting can support the EU's drive to involve more small and medium-sized undertakings in the provision of goods and services for the public sector. Definition United States public acquisition regulations contain a number of distinct definitions of "subcontract" an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nacelle
A nacelle ( ) is a streamlined container for aircraft parts such as Aircraft engine, engines, fuel or equipment. When attached entirely outside the airframe, it is sometimes called a pod, in which case it is attached with a Hardpoint#Pylon, pylon or strut and the engine is known as a podded engine. In some cases—for instance in the typical "Farman Aviation Works, Farman" type Pusher configuration, "pusher" aircraft, or the World War II-era P-38 Lightning or SAAB J21—an aircraft cockpit may also be housed in a nacelle, rather than in a conventional fuselage. Etymology Like many aviation terms, the word comes from French language, French, in this case from a word for a small boat. Development file:Arado Ar 234V6 and Ar 234V8 front-view silhouettes.png, The development of the Arado Ar 234, merging the four nacelles into two The Arado Ar 234 was one of the first operational jet aircraft with engines mounted in nacelles. During its development, the four engines had four distin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevron (aeronautics)
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] |
Raked Wingtip
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag (physics), drag. Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft's drag. Such devices reduce drag by increasing the height of the lifting system, without greatly increasing the wingspan. Extending the span would reduce lift-induced drag, but would increase parasitic drag and would require boosting the strength and weight of the wing. At some point, there is no net benefit from further increased span. There may also be operational considerations that limit the allowable wingspan (e.g. available width at Gate (airport), airport gates). Physics When a conventional wing generates lift, it also experiences lift-induced drag. Higher pressure air under the wing flows to the lower pressure surface on top at the wingtip, which results in a vortex caused by the forward motion of the aircraft. Eri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical System
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of either a positive or negative electric charge produces an electric field. The motion of electric charges is an electric current and produces a magnetic field. In most applications, Coulomb's law determines the force acting on an electric charge. Electric potential is the work done to move an electric charge from one point to another within an electric field, typically measured in volts. Electricity plays a central role in many modern technologies, serving in electric power where electric current is used to energise equipment, and in electronics dealing with electrical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Material
A composite or composite material (also composition material) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a material with properties unlike the individual elements. Within the finished structure, the individual elements remain separate and distinct, distinguishing composites from mixtures and solid solutions. Composite materials with more than one distinct layer are called ''composite laminates''. Typical engineered composite materials are made up of a binding agent forming the ''matrix'' and a Filler (materials), filler material (particulates or fibres) giving ''substance'', e.g.: * Concrete, reinforced concrete and masonry with cement, lime or Mortar (masonry), mortar (which is itself a composite material) as a binder * Composite wood such as glulam and plywood with wood glue as a binder * Reinforced plastics, such as fiberglass and fibre-rein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
