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Chengdu J-20
The Chengdu J-20 (), also known as ''Mighty Dragon'' (), is a twinjet all-weather stealth fighter aircraft developed by China's Chengdu Aerospace Corporation for the People's Liberation Army Air Force (PLAAF). The J-20 is designed as an air superiority fighter with precision strike capability. The aircraft has three variants: the initial production model J-20A, the thrust-vectoring J-20B, and twin-seat aircraft teaming capable J-20S. Descends from the J-XX program of the 1990s, the aircraft made its maiden flight on 11 January 2011, and was officially revealed at the 2016 China International Aviation & Aerospace Exhibition. The aircraft entered service in March 2017 with the first J-20 combat unit formed in February 2018, making China the second country in the world and the first in Asia to field an operational stealth aircraft. The J-20 is the world's third operational fifth-generation stealth fighter aircraft after the F-22 and F-35. Development The J-20 emerged from ... [...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 Wikimedia project, 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 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 outside organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chengdu J-9
The Chengdu J-9 ( Chinese: 歼-9) was an interceptor aircraft that was cancelled during development in the People's Republic of China (PRC). It was proposed in 1964 by the 601 Institute (Shenyang) as a higher-performing alternative to the Shenyang J-8.Gordon and Komissarov (2008): page 90 Development was disrupted by the Cultural Revolution and frequently changing requirements; in addition, development was transferred to the 611 Institute (Chengdu). The program was cancelled in 1980.Gordon and Komissarov (2008): page 91Gordon and Komissarov (2008): page 92 Development By 1964, the Chengdu J-7 was inadequate to perform long-range, high-altitude interceptions. The Chinese Aeronautical Establishment held a conference on 25 October to discuss future fighters. The 601 Institute had two proposals; a twin-engined "scaled-up" J-7 which became the J-8,Gordon and Komissarov (2008): page 75 and a higher-performing single-engined option that became the J-9. The J-9 was technically riskier; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Warfare
Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control the spectrum, attack an enemy, or impede enemy assaults. The purpose of electronic warfare is to deny the opponent the advantage of—and ensure friendly unimpeded access to—the EM spectrum. EW can be applied from air, sea, land, and/or space by crewed and uncrewed systems, and can target communication, radar, or other military and civilian assets. The electromagnetic environment Military operations are executed in an information environment increasingly complicated by the electromagnetic spectrum. The electromagnetic spectrum portion of the information environment is referred to as the electromagnetic environment (EME). The recognized need for military forces to have unimpeded access to and use of the electromagnetic environment creates vulnerabilities and opportunities for electronic warfare in support of military operations. Within the inform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactical Bombing
Tactical bombing is aerial bombing aimed at targets of immediate military value, such as combatants, military installations, or military equipment. This is in contrast to strategic bombing, or attacking enemy cities and factories to cripple future military production and enemy civilians' will to support the war effort, to debilitate the enemy's long-term capacity to wage war. The term "tactical bomber" only refers to a bomber aircraft designed specifically for the primary role of tactical bombing, even though many other types of aircraft ranging from strategic bombers to fighters, interceptors, and helicopters have been used in tactical bombing operations. Tactical bombing is employed for two primary assignments. Aircraft providing close air support attack targets in nearby proximity to friendly ground forces, acting in direct support of the ground operations (as a "flying artillery"). Air interdiction, by contrast, attacks tactical targets that are distant from or oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Rate Initial Production
Low rate initial production (LRIP) is a term commonly used in military weapon projects/programs to designate the phase of initial, small-quantity production. The prospective first buyer and operator (i.e., a country's defense authorities and the relevant military units) gets to thoroughly test the weapons system over some protracted amount of time—in order to gain a reasonable degree of confidence as to whether the system actually performs to the agreed-upon requirements before contracts for mass production are signed. At the same time, manufacturers can use the LRIP as a production test-phase where they develop the assembly line models that would eventually be used in mass production. Therefore, the LRIP is commonly the first step in transitioning from highly customized, hand-built prototypes to the final mass-produced end product. In practice, either the production capability or the weapons system itself can be unready during the LRIP phase. This can mean that systems produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diverterless Supersonic Inlet
A diverterless supersonic inlet (DSI) is a type of jet engine air intake used by some modern combat aircraft to control air flow into their engines. It consists of a "bump" and a forward-swept inlet cowl, which work together to divert boundary layer airflow away from the aircraft's engine. This eliminates the need for a splitter plate, while compressing the air to slow it down from supersonic to subsonic speeds. The DSI can be used to replace conventional methods of controlling supersonic and boundary-layer airflow. DSIs can be used to replace the intake ramp and inlet cone, which are more complex, heavy and expensive. Technical background The fundamental design of a gas turbine engine is such that the air flow-rate entering its compressor is regulated by the amount of fuel burned in its combustor. For supersonic flight the air entering the inlet also has to be regulated to a similar amount by the design of the entrance of the inlet duct (to minimize either drag, on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chengdu
Chengdu (, ; simplified Chinese: 成都; pinyin: ''Chéngdū''; Sichuanese pronunciation: , Standard Chinese pronunciation: ), alternatively romanized as Chengtu, is a sub-provincial city which serves as the capital of the Chinese province of Sichuan. With a population of 20,937,757 inhabitants during the 2020 Chinese census, it is the fourth most populous city in China, and it is the only city apart from the four direct-administered municipalities with a population of over 20 million (the other three are Chongqing, Shanghai and Beijing). It is traditionally the hub in Southwest China. Chengdu is located in central Sichuan. The surrounding Chengdu Plain is known as the "Country of Heaven" () and the "Land of Abundance". Its prehistoric settlers included the Sanxingdui culture. The site of Dujiangyan, an ancient irrigation system, is designated as a World Heritage Site. The Jin River flows through the city. Chengdu's culture largely reflects that of its provin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Wall Street Journal
''The Wall Street Journal'' is an American business-focused, international daily newspaper based in New York City, with international editions also available in Chinese and Japanese. The ''Journal'', along with its Asian editions, is published six days a week by Dow Jones & Company, a division of News Corp. The newspaper is published in the broadsheet format and online. The ''Journal'' has been printed continuously since its inception on July 8, 1889, by Charles Dow, Edward Jones, and Charles Bergstresser. The ''Journal'' is regarded as a newspaper of record, particularly in terms of business and financial news. The newspaper has won 38 Pulitzer Prizes, the most recent in 2019. ''The Wall Street Journal'' is one of the largest newspapers in the United States by circulation, with a circulation of about 2.834million copies (including nearly 1,829,000 digital sales) compared with ''USA Today''s 1.7million. The ''Journal'' publishes the luxury news and lifestyle magazine ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chengdu Aircraft Design Institute
The Chengdu Aircraft Research & Design Institute (CADI), or 611 Research and Design Institute ( zh, c=成都飞机设计研究所, p=Chéngdū fēijī shèjì yánjiūsuǒ), is a design institute and works with the Chengdu Aircraft Industry Group for military aircraft. Built in 1970, it covers an area of 310,000 square meters. History In May 1970, the Shenyang design team for the J-9 moved to Chengdu; this was part of the " Third Line" program that moved defence industries to the interior to make them less vulnerable to foreign attack. The team was later renamed as the 611 Institute. The design work on the cancelled double-canard J-9 influenced later CADI designs. The Chengdu J-10 used the double-canard layout. The Chengdu J-20 also used canards. Products * CAC FC-1 / JF-17 * Chengdu J-10 * Chengdu J-20 The Chengdu J-20 (), also known as ''Mighty Dragon'' (), is a twinjet all-weather stealth fighter aircraft developed by China's Chengdu Aerospace Corporation for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxiing
Taxiing (rarely spelled taxying) is the movement of an aircraft on the ground, under its own power, in contrast to towing or pushback where the aircraft is moved by a tug. The aircraft usually moves on wheels, but the term also includes aircraft with skis or floats (for water-based travel). An airplane uses taxiways to taxi from one place on an airport to another; for example, when moving from a hangar to the runway. The term "taxiing" is not used for the accelerating run along a runway prior to takeoff, or the decelerating run immediately after landing, which are called the takeoff roll and landing rollout, respectively. Etymology As early as 1909 aviation journalists envisioned aeroplanes to replace the taxicab in traffic-congested cities. Some aviators and some linguists report that around the year 1911 the slang word "taxi" was in use for an "airplane". They suggest that the way aircraft move under power before they take off or after they land reminded someone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HighBeam Research
HighBeam Research was a paid search engine and full text online archive owned by Gale, a subsidiary of Cengage, for thousands of newspapers, magazines, academic journals, newswires, trade magazines, and encyclopedias in English. It was headquartered in Chicago, Illinois. In late 2018, the archive was shut down. History The company was established in August 2002 after Patrick Spain, who had just sold Hoover's, which he had co-founded, bought eLibrary and Encyclopedia.com from Tucows. The new company was called Alacritude, LLC (a combination of Alacrity and Attitude). ELibrary had a library of 1,200 newspaper, magazine and radio/TV transcript archives that were generally not freely available. Original investors included Prism Opportunity Fund of Chicago and 1 to 1 Ventures of Stamford, Connecticut. Spain stated, "There was a glaring gap between free search like Google and high-end offerings like LexisNexis and Factiva." Later in 2002, it bought Researchville.com. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air University (United States Air Force)
Air University is a professional military education university system of the United States Air Force. It is accredited by the Commission on Colleges of the Southern Association of Colleges and Schools to award master's degrees. Organizations ;Air Force Institute of Technology (AFIT) ;Carl A. Spaatz Center for Officer Education :USAF Air War College (AWC) :Air Command and Staff College (ACSC) :Squadron Officer School (SOS) :International Officers School (IOS) : School of Advanced Air and Space Studies (SAASS) :USAF Center for Strategic Deterrence Studies ; Curtis E. Lemay Center for Doctrine Development & Education ; Ira C. Eaker College for Professional Development :Air Force Chaplain Corps College :Air Force Personnel Professional Development School :Commanders' Professional Development School :Defense Financial Management & Comptroller School :National Security Space Institute :Civilian Leadership Development School ; Jeanne M. Holm Center for Officer Accessions and Citizen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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