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PL-11 (missile)
The PL-11 () is a medium-range semi-active radar homing (SARH) air-to-air missile (AAM) developed by a subsidiary of the Shanghai Academy of Spaceflight Technology in the People's Republic of China. It is a development or copy of the Italian Aspide AAM, which in turn was developed from the American AIM-7 Sparrow. The PRC may have started license production of the Aspide using imported parts but the license was cancelled following the 1989 Tiananmen Square protests and massacre. Development started in 1990, and the first live-fire test occurred in 2002 from a Shenyang J-8 IIB. Description The PL-11 was the People's Liberation Army Air Force's main medium-ranged AAM until the PL-12. The HQ-61 is the surface-to-air missile A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground to destroy aircraft or other missiles. It is one type of anti-aircraft syst ... (SAM) vari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air-to-air Missile
The newest and the oldest member of Rafael's Python family of AAM for comparisons, Python-5 (displayed lower-front) and Shafrir-1 (upper-back) An air-to-air missile (AAM) is a missile fired from an aircraft for the purpose of destroying another aircraft. AAMs are typically powered by one or more rocket motors, usually solid fueled but sometimes liquid fueled. Ramjet engines, as used on the Meteor, are emerging as propulsion that will enable future medium-range missiles to maintain higher average speed across their engagement envelope. Air-to-air missiles are broadly put in two groups. Those designed to engage opposing aircraft at ranges of less than 16 km are known as short-range or "within visual range" missiles (SRAAMs or WVRAAMs) and are sometimes called "dogfight" missiles because they are designed to optimize their agility rather than range. Most use infrared guidance and are called heat-seeking missiles. In contrast, medium- or long-range missiles (MRAAMs or L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-active Radar Homing
Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range Air-to-air missile, air-to-air and surface-to-air missile systems. The name refers to the fact that the missile itself is only a passive radar, passive detector of a radar signal—Radar illumination, provided by an external ("offboard") source—as it reflects off the target (in contrast to active radar homing, which uses an active radar transceiver). Semi-active missile systems use bistatic radar, bistatic continuous-wave radar. The NATO Multiservice tactical brevity code, brevity code for a semi-active radar homing missile launch is Fox (code word), Fox One. Concept The basic concept of SARH is that since almost all detection and tracking systems consist of a radar system, duplicating this hardware on the missile itself is redundant. The weight of a transmitter reduces the range of any flying object, so passive systems have greater reach. In addition, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-active Radar Homing
Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range Air-to-air missile, air-to-air and surface-to-air missile systems. The name refers to the fact that the missile itself is only a passive radar, passive detector of a radar signal—Radar illumination, provided by an external ("offboard") source—as it reflects off the target (in contrast to active radar homing, which uses an active radar transceiver). Semi-active missile systems use bistatic radar, bistatic continuous-wave radar. The NATO Multiservice tactical brevity code, brevity code for a semi-active radar homing missile launch is Fox (code word), Fox One. Concept The basic concept of SARH is that since almost all detection and tracking systems consist of a radar system, duplicating this hardware on the missile itself is redundant. The weight of a transmitter reduces the range of any flying object, so passive systems have greater reach. In addition, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanghai Academy Of Spaceflight Technology
The Shanghai Academy of Spaceflight Technology (SAST) is a Chinese space agency and subordinate of China Aerospace Science and Technology Corporation (CASC), it is referred to as ''The Eighth Academy'' of CASC. The agency was established in August 1961 as ''Shanghai Second Bureau of Electromechanical Industry'', but was later renamed to ''Shanghai Academy of Spaceflight Technology'' in 1993. Space flight programmes SAST designs, develops, and manufactures launch vehicles as well as components. They designed and manufactured the Long March 2D The Long March 2D (), also known as the Chang Zheng 2D, CZ-2D and LM-2D, is a Chinese two-stage orbital carrier rocket mainly used for launching LEO and SSO satellites. It is manufactured by the Shanghai Academy of Spaceflight Technology (SA ..., the entire Long March 4 series and FB-1 rockets. The FB-1 launched three military satellites, no details of which have been published. SAST was held responsible for the FB-1 failures betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People's Republic Of China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspide
Aspide (the Italian name for the asp) is an Italian medium range air-to-air and surface-to-air missile produced by Selenia (then by Alenia Aeronautica, now a part of Leonardo S.p.A.). It is provided with semi-active radar homing seeker. It is very similar to the American AIM-7 Sparrow, using the same airframe, but uses an inverse monopulse seeker that is far more accurate and much less susceptible to ECM than the original conical scanning version. This resemblance, and that Selenia was provided with the technology know-how of the AIM-7 (around 1,000 of which it had produced under licence), has generally led non-Italian press to refer to the Aspide as a Sparrow variant. However, the Aspide had original electronics and warhead, and a new and more powerful engine. Closed-loop hydraulics were also substituted for Sparrow's open-loop type, which gave Aspide better downrange maneuverability. Even the control surfaces are different, replacing the original triangular wings, fixed i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AIM-7 Sparrow
The AIM-7 Sparrow (Air Intercept Missile) is an American, medium-range semi-active radar homing air-to-air missile operated by the United States Air Force, United States Navy, and United States Marine Corps, as well as other various air forces and navies. Sparrow and its derivatives were the West's principal beyond visual range (BVR) air-to-air missile from the late 1950s until the 1990s. It remains in service, although it is being phased out in aviation applications in favor of the more advanced AIM-120 AMRAAM. The early Sparrow was intended primarily for use against larger targets, especially bombers and had numerous operational limitations in other uses. Against smaller targets, the need to receive a strong reflected radar signal made achieving lock-on at the missile's effective range difficult. As the launching aircraft's own radar needed to be pointed at the target throughout the engagement, this meant that in fighter-vs-fighter combat, the enemy fighter would often approa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1989 Tiananmen Square Protests And Massacre
The Tiananmen Square protests, known in Chinese as the June Fourth Incident (), were student-led demonstrations held in Tiananmen Square, Beijing during 1989. In what is known as the Tiananmen Square Massacre, or in Chinese the June Fourth Clearing () or June Fourth Massacre (), troops armed with assault rifles and accompanied by tanks fired at the demonstrators and those trying to block the military's advance into Tiananmen Square. The protests started on 15 April and were forcibly suppressed on 4 June when the government declared martial law and sent the People's Liberation Army to occupy parts of central Beijing. Estimates of the death toll vary from several hundred to several thousand, with thousands more wounded. The popular national movement inspired by the Beijing protests is sometimes called the '89 Democracy Movement () or the Tiananmen Square Incident (). The protests were precipitated by the death of pro-reform Chinese Communist Party (CCP) general secretary H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenyang J-8
The Shenyang J-8 (Simplified Chinese characters, Chinese: 歼-8; NATO reporting name: Finback) is an interceptor aircraft developed by the Shenyang Aircraft Design Institute, 601 Institute (Shenyang) in the People's Republic of China (PRC). It was conceived in the early 1960s as a low-risk program based on enlarging the Mikoyan-Gurevich MiG-21F, a version of which the PRC was producing as the Chengdu J-7. The original J-8 experienced protracted development due to disruption from the Cultural Revolution; the prototypes first flew in 1969 but the design was not finalized until 1979 with the aircraft entering service in 1980. The J-8II/J-8B (NATO reporting name: Finback-B) was a major development of the J-8 and was essentially a new aircraft. The J-8II replaced the nose air intake and its shock cone with an ogival radome and lateral air intakes to create room for a modern fire-control radar, and used more powerful engines. The aircraft started development in 1982, and was cleared f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People's Liberation Army Air Force
The People's Liberation Army Air Force (PLAAF; ), also known as the Chinese Air Force (中国空军) or the People's Air Force (人民空军), is an aerial service branch of the People's Liberation Army, the regular armed forces of the People's Republic of China. The PLAAF was officially established on 11 November 1949 and it is composed of 5 branches which are aviation, anti-aircraft artillery, surface-to-air missiles (SAM), radar, and Airborne Corps. The PLAAF first faced combat in the Korean War against the United States using primarily the Mikoyan-Gurevich MiG-15 fighter aircraft, aircraft provided by the Soviet Union, which also assisted with the expansion of the Chinese aerospace industry. Changes in the organization of the PLAAF followed by modernization programs in the 1990s and increased technology development in the 21st century has created the J-20 stealth multirole fighter, the first of its kind for China. History Korean War to the Sino-Soviet Split ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PL-12
The PL-12 (, NATO reporting name: CH-AA-7) is an active radar-guided beyond-visual-range air-to-air missile developed by the People's Republic of China. It is considered comparable to the US AIM-120 AMRAAM and the Russian R-77. History Development of the PL-12 (SD-10) began in 1997. The first public information of the Leihua Electronic Technology Research Institute's PL-12 then called the SD-10 emerged in 2001. Development was assisted by Vympel NPO and Agat of Russia.Medeiros et al.: page 92 Liang Xiaogeng is believed to have been the chief designer. Four successful test firings were made in 2004. The missile entered People's Liberation Army Air Force (PLAAF) service in 2005. Design The early batches of PL-12 missiles reportedly used the 9B-1348 radar seeker designed for the R-77 missile. The development process was assisted by Vympel NPO and Tactical Missile Corporation and benefited from Russian technology transfers. But as of 2018, the PL-12 was no longer reliant on Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HQ-61
The HQ-6, also known as LY-60, is a family of Chinese air defense missiles developed by the Shanghai Academy of Science and Technology, largely based on the Chinese PL-11 and Italian Selenia (now as Leonardo S.p.A.) Aspide missile. Development HQ-6 is a surface-to-air missile system developed by the Shanghai Academy of Science and Technology, incorporating technologies from PL-11 missile. PL-11 is the license-produced version of Aspide missile, which itself is based on the American AIM-7 Sparrow missile. It was speculated the missile is a copy of AIM-7 when the system was revealed in the late 1970s, though HQ-6 is considerably larger than the AIM-7 Sparrow. HQ-6 missile went through multiple iterations, and an export variant named LY-60 was also developed. Variants PL-11 The PL-11 () is a medium-range semi-active radar homing (SARH) air-to-air missile (AAM) developed by a subsidiary of the Shanghai Academy of Spaceflight Technology in the People's Republic of China. It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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