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Type 815 Spy Ship
The Type 815, as well as its derivatives Type 815G and Type 815A, are Chinese electronic surveillance ships in service with the People's Liberation Army Navy (PLAN). Type 815 spy ship has received NATO reporting name Dongdiao class (meaning East Investigation), while its successors Type 815G & 815A have received NATO reporting name Dongdiao II class. Type 815 Type 815 was designed to be a follow-on for earlier Type 813, but the latter did not immediately retire after the former has been commissioned, and both types served together until Type 813 was finally retired from PLAN and transferred to Chinese Coast Guard and converted to PRCCGS # 3469 cutter. Type 815 was formerly named as Dong-Diao (东调, meaning "''East Investigate''") (Pennant #232), but subsequently, the name was changed to Polaris after new naming convention adopted by PLAN. After entering service in the latter half of 1999, the ship went through major upgrade several years later, with parabolic antennas repla ... [...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] |
Naval Vessels Naming Regulation
The Naval Vessels Naming Regulation () is a regulation that governs the naming of vessels of the Chinese People's Liberation Army Navy. It was published by the PLAN on November 18, 1978, and was revised on July 10, 1986. Nomenclature The regulation states that surface combatants above cruiser class (i.e. battleships and aircraft carriers) shall be named by the State Council on a case-by-case basis while others are named after geographical locations: References See also * List of active People's Liberation Army Navy ships The ship types in service with the People's Liberation Army Navy (PLAN) include aircraft carriers, submarines, (both nuclear and conventional), amphibious transport docks, landing ships, tank, landing ships, medium, destroyers, frigates, co ... {{Ship classes of the Chinese Navy Ship naming conventions Ships of the People's Liberation Army Navy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exercise Talisman Saber
Exercise Talisman Sabre (also formerly spelled Talisman Saber, the US English alternative title) is a biennial, multinational military exercise led by Australia and the United States. Talisman Sabre involves joint exercises performed by the Australian Defence Force and the Military of the United States, United States Military across six locations in northern and central Australia, the Coral Sea, and in Honolulu, Denver, and Suffolk, Va., though the bulk of the exercises are concentrated at the Shoalwater Bay, Shoalwater Bay Military Training Area and other locations in northern and central Australia and Australia's territorial sea and exclusive economic zone. To reflect its bilateral nature, the leadership of the exercise switches between Australia and the US every 2 years. The exercise focuses on crisis-action planning and contingency response, enhancing both nations' military capabilities to deal with regional contingencies and the War on Terrorism. The exercise is historically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiwan Strait
The Taiwan Strait is a -wide strait separating the island of Taiwan and continental Asia. The strait is part of the South China Sea and connects to the East China Sea to the north. The narrowest part is wide. The Taiwan Strait is itself a subject of international dispute over its political status. As the People's Republic of China claims to enjoy "sovereignty, sovereign rights and jurisdiction over the Taiwan Strait" and regards the waterway as " internal territorial waters" instead of being international waters, this means that the Chinese government denies any foreign vessel having the freedom of navigation in the strait. This position has drawn strong objections from the United States, Australia, France and Taiwan. Names Former names of the Taiwan Strait include the or from a dated name for Taiwan; the or Fujian, from the Chinese province forming the strait's western shore; and the , a calque of the strait's name in Hokkien and Hakka. Geography The Taiwan Strait ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Sea Fleet
The Southern Theater Command Navy (), or the South Sea Fleet (SSF; ) is one of the three fleets of the Chinese People's Liberation Army Navy, operating in the South China Sea under the Southern Theater Command. It is headquartered in Zhanjiang, Guangdong Province. Initially, the fleet's strength consisted mostly of former Kuomintang ships and personnel, which either defected or were captured by the People's Liberation Army. One of three fleets of the People's Liberation Army Navy, the SSF's duties were to protect the city of Guangzhou and the Pearl River regions, and support the PLA in capturing islands that were still in the hands of the Kuomintang forces. The fleet's development has been slow, because most of China's shipbuilding industry is located on the northern or eastern coasts. In the 1970s the fleet underwent a major buildup, due to conflict in the Paracel Islands and other reefs in the South China Sea. In 1974, the SSF took the Paracel Islands from South Vietnam, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sea Fleet
The Northern Theater Command Navy (), or the North Sea Fleet (NSF; ) is one of the three fleets of the Chinese People's Liberation Army Navy, under the Northern Theater Command. In September 1950 the Qingdao Army Base was redesignated as a naval base. Following the departure of the Soviet Navy from Lüshunkou (Port Arthur), the North Sea Fleet was established in 1960 with naval bases in Qingdao and Lüshunkou. It includes the Aircraft carrier Liaoning, as well as nuclear-powered attack and missile submarines based at Qingdao bastion. The North Sea Fleet was historically the most capable of the Navy's three fleets, being the first in China to operate destroyers, shore-based missiles and nuclear submarines. In recent years however, the shift in strengthening of importance and strategic capabilities of the East and South Sea Fleets are more prioritised. See also * People's Liberation Army Navy ** East Sea Fleet ** South Sea Fleet * Beiyang Fleet The Beiyang Fleet (Pei-y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Sea Fleet
The Eastern Theater Command Navy (), or East Sea Fleet (ESF; ), is one of the three fleets of the People's Liberation Army Navy, operating in the East China Sea under the Eastern Theater Command. It was the first naval force formed by the People's Liberation Army, on 23 April 1949 and was initially based at Shanghai. Renamed in 1955, it has since been assigned to be part of the People's Liberation Army Navy and its headquarters have been moved to Ningbo, Zhejiang Province, but the fleet continues to patrol the East China Sea. Its flagship is the Type 052C destroyer ''Changchun''. The fleet was used in a support role during the People's Liberation Army's (PLA) invasion of the Kuomintang-held island of Yijiangshan on 14 January 1955. It has engaged in numerous other battles against the Republic of China Armed Forces. It has also operated in support of the South Sea Fleet against the People's Army of Vietnam during the 1980s. Major naval bases of the fleet * Ningbo Fleet Headqua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Spy Ship Beijixing
''Beijixing'' (AGI-851) is the lead ship of the Type 815 spy ship of the People's Liberation Army Navy (PLAN). She was originally named ''Dongdiao'' (232). Her main task is to monitor and analyze electronic signal intelligence. It may also conduct tactical ballistic missile tests, missile trajectory measurement and missile tracking tasks. Description She has been modified throughout the years. After modification, the original dish antenna was replaced by three large radomes. The long bow building is adopted, and the first building extends to the helicopter deck, which not only increases the height of the freeboard, but also increases the space inside the ship. The bow has a slight sheave, and the front section is also equipped with a fender. These measures are to reduce the waves on the deck and make the ship suitable for ocean navigation. Construction and career ''Dongdiao'' was commissioned in late 1991 after being completed by Hudong–Zhonghua Shipyard, Shanghai. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Tracking
Measurement and signature intelligence (MASINT) is a technical branch of intelligence gathering, which serves to detect, track, identify or describe the distinctive characteristics (signatures) of fixed or dynamic target sources. This often includes radar intelligence, acoustic intelligence, nuclear intelligence, and chemical and biological intelligence. MASINT is defined as scientific and technical intelligence derived from the analysis of data obtained from sensing instruments for the purpose of identifying any distinctive features associated with the source, emitter or sender, to facilitate the latter's measurement and identification. MASINT specialists themselves struggle with providing simple explanations of their field. One attempt calls it the "CSI" of the intelligence community, in imitation of the television series ''CSI: Crime Scene Investigation''. Another possible definition calls it "astronomy except for the direction of view." The allusion here is to observational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Intelligence
Signals intelligence (SIGINT) is intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). Signals intelligence is a subset of intelligence collection management. As classified and sensitive information is usually encrypted, signals intelligence in turn involves the use of cryptanalysis to decipher the messages. Traffic analysis—the study of who is signaling whom and in what quantity—is also used to integrate information again. History Origins Electronic interceptions appeared as early as 1900, during the Boer War of 1899–1902. The British Royal Navy had installed wireless sets produced by Marconi on board their ships in the late 1890s, and the British Army used some limited wireless signalling. The Boers captured some wireless sets and used them to make vital transmis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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