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Boeing Sonic Cruiser
The Boeing Sonic Cruiser was a concept jet airliner with a delta wing– canard configuration. It was distinguished from conventional airliners by its delta wing and high- subsonic cruising speed of up to Mach 0.98. Boeing first proposed it in 2001, but airlines generally preferred lower operating costs over higher speed. Boeing ended the Sonic Cruiser project in December 2002 and shifted to the slower (Mach 0.85), but more fuel-efficient 7E7 (later named 787 Dreamliner) airliner. Design and development The Sonic Cruiser was born from one of numerous outline research and development projects that began in the 1990s at Boeing with the goal to look at potential designs for a possible new near-sonic or supersonic airliner.Haenggi 2003, pp. 83–86. The Sonic Cruiser was publicly unveiled on March 29, 2001, shortly after the launch of the A380 by rival Airbus. Boeing had recently withdrawn its proposed 747X derivative from competition with the A380 when not enough airline inter ... [...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] |
Alan Mulally
Alan Roger Mulally (born August 4, 1945) is an American aerospace engineer and manufacturing executive. He is the former President and Chief Executive Officer of the Ford Motor Company. He retired from Ford Motor Company on July 1, 2014. Ford had been struggling during the late-2000s recession, returned to profitability under Mulally, and was the only American major car manufacturer to avoid a bailout fund provided by the government. Mulally's achievements at Ford are chronicled in the book '' American Icon: Alan Mulally and the Fight to Save Ford Motor Company'' by Bryce G. Hoffman, published in 2012. On July 15, 2014, he was appointed to the Board of Directors of Google. Mulally was the executive vice president of Boeing and the CEO of Boeing Commercial Airplanes (BCA). He began his career with Boeing as an engineer in 1969 and was largely credited with BCA's resurgence against Airbus in the mid-2000s. In 2015, Mulally was inducted into the International Air & Space Hall of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing Yellowstone Project
Yellowstone is a Boeing Commercial Airplanes project to replace its entire civil aircraft portfolio with advanced technology aircraft. New technologies to be introduced include composite aerostructures, more electrical systems (reduction of hydraulic systems), and more fuel-efficient turbofan engines (such as the Pratt & Whitney PW1000G Geared Turbofan, General Electric GEnx, the CFM International CFM56, and the Rolls-Royce Trent 1000). The term "Yellowstone" refers to the technologies, while "Y1" through "Y3" refer to the actual aircraft. The first of these projects, Y2, has entered service as the Boeing 787. Yellowstone projects Yellowstone is divided into three projects: * Boeing Y1, to replace the Boeing 737, 757, and 767-200 product lines. The Y1 covers the 100- to 250-passenger market, and is expected to be the second Yellowstone Project aircraft to be developed. Boeing submitted a patent application in November 2009, that was released to the public in August 2010, that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel Efficiency
Fuel efficiency is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work. Overall fuel efficiency may vary per device, which in turn may vary per application, and this spectrum of variance is often illustrated as a continuous energy profile. Non-transportation applications, such as industry, benefit from increased fuel efficiency, especially fossil fuel power plants or industries dealing with combustion, such as ammonia production during the Haber process. In the context of transport, fuel economy is the energy efficiency of a particular vehicle, given as a ratio of distance traveled per unit of fuel consumed. It is dependent on several factors including engine efficiency, transmission design, and tire design. In most countries, using the metric system, fuel economy is stated as "fuel consumption" in liters per 100 kilometers (L/100 km) or kilometer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Noise
Aircraft noise pollution refers to noise produced by aircraft in flight that has been associated with several negative stress-mediated health effects, from sleep disorders to cardiovascular ones. Governments have enacted extensive controls that apply to aircraft designers, manufacturers, and operators, resulting in improved procedures and cuts in pollution. Sound production is divided into three categories: * Mechanical noise—rotation of the engine parts, most noticeable when fan blades reach supersonic speeds. * Aerodynamic noise—from the airflow around the surfaces of the aircraft, especially when flying low at high speeds. * Noise from aircraft systems—cockpit and cabin pressurization and conditioning systems, and Auxiliary Power units. Mechanisms of sound production Aircraft noise is noise pollution produced by an aircraft or its components, whether on the ground while parked such as auxiliary power units, while taxiing, on run-up from propeller and jet exhaust, duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonic Boom
A sonic boom is a sound associated with shock waves created when an object travels through the air faster than the speed of sound. Sonic booms generate enormous amounts of sound energy, sounding similar to an explosion or a thunderclap to the human ear. A decibel is the primary unit measurement of sound. "A thunderclap is incredibly loud, producing levels between 100 and 120 dBA (Decibel, decibels A)- the equivalent of standing near a jet during take-off." The crack of a supersonic bullet passing overhead or the crack of a bullwhip are examples of a sonic boom in miniature. Sonic booms due to large supersonic aircraft can be particularly loud and startling, tend to awaken people, and may cause minor damage to some structures. This led to prohibition of routine supersonic flight overland. Although they cannot be completely prevented, research suggests that with careful shaping of the vehicle, the nuisance due to the sonic booms may be reduced to the point that overland super ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noise Pollution
Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them are harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems.Senate Public Works Committee. ''Noise Pollution and Abatement Act of 1972''. S. Rep. No. 1160, 92nd Congress. 2nd session Poor urban planning may give rise to noise disintegration or pollution, side-by-side industrial and residential buildings can result in noise pollution in the residential areas. Some of the main sources of noise in residential areas include loud music, transportation (traffic, rail, airplanes, etc.), lawn care maintenance, construction, electrical generators, wind turbines, explosions, and people. Documented problems associated with noise in urban environments go back as far as ancient Rome. Research suggests that noise pollution in the United States is the high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent Drawing
A patent application or patent may contain drawings, also called patent drawings, illustrating the invention, some of its embodiments (which are particular implementations or methods of carrying out the invention), or the prior art. The drawings may be required by the law to be in a particular form, and the requirements may vary depending on the jurisdiction. Jurisdictions Europe Under the European Patent Convention, provides that a European patent application shall contain any drawings referred to in the description or the claims. Drawings are therefore optional. specifies the form in which the drawings must be executed. The European search report is drawn up in respect of a European patent application on the basis of the claims, with due regard to the description and any drawings. In addition, the extent of the protection conferred by a European patent or a European patent application is determined by the claims, with the description and drawings being used to interpre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popular Science
''Popular Science'' (also known as ''PopSci'') is an American digital magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects. ''Popular Science'' has won over 58 awards, including the American Society of Magazine Editors awards for its journalistic excellence in 2003 (for General Excellence), 2004 (for Best Magazine Section), and 2019 (for Single-Topic Issue). With roots beginning in 1872, ''Popular Science'' has been translated into over 30 languages and is distributed to at least 45 countries. Early history ''The Popular Science Monthly'', as the publication was originally called, was founded in May 1872 by Edward L. Youmans to disseminate scientific knowledge to the educated layman. Youmans had previously worked as an editor for the weekly ''Appleton's Journal'' and persuaded them to publish his new journal. Early issues were mostly reprints of English periodicals. The journal became an outlet for writings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Naisbitt
John Naisbitt (January 15, 1929 – April 8, 2021) was an American author and public speaker in the area of futures studies. His first book '' Megatrends: Ten New Directions Transforming Our Lives'' was published in 1982. It was the result of almost ten years of research. It was on ''The New York Times'' Best Seller List for two years, mostly as No. 1. ''Megatrends'' was published in 57 countries and sold more than 14 million copies.John Naisbitt biography at personal website. Biography John Naisbitt grew up in and studied at , |
Paris Air Show
The Paris Air Show (french: Salon international de l'aéronautique et de l'espace de Paris-Le Bourget, Salon du Bourget) is a trade fair and air show held in odd years at Paris–Le Bourget Airport in north Paris, France. Organized by the French aerospace industry's primary representative body, the ''Groupement des industries françaises aéronautiques et spatiales'' (GIFAS), it is the largest air show and aerospace-industry exhibition event in the world, measured by number of exhibitors and size of exhibit space, followed by UK's Farnborough Air Show, Dubai Air Show, and Singapore Airshow. First held in 1909, the Paris Air Show was held every odd year from 1949 to 2019, when the 53rd Air Show attracted 2,453 exhibitors from 49 countries and occupied more than 125,000 square meters. Organizers canceled the 2021 show due to the COVID pandemic and said it would resume in 2023. It is a large trade fair, demonstrating military and civilian aircraft, and is attended by many military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virgin Atlantic
Virgin Atlantic, a trading name of Virgin Atlantic Airways Limited and Virgin Atlantic International Limited, is a British airline with its head office in Crawley, England. The airline was established in 1984 as British Atlantic Airways, and was originally planned by its co-founders Randolph Fields and Alan Hellary to fly between London and the Falkland Islands. Soon after changing the name to Virgin Atlantic Airways, Fields sold his shares in the company after disagreements with Richard Branson over the management of the company. The maiden flight from Gatwick Airport to Newark International Airport took place on 22 June 1984. The airline along with Virgin Holidays is controlled by a holding company, Virgin Atlantic Limited, which is 51% owned by the Virgin Group and 49% by Delta Air Lines. It is administratively separate from other Virgin-branded airlines. Virgin Atlantic Airways Limited and Virgin Atlantic International Limited both hold Civil Aviation Authority (CAA) Type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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