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Type 345 Radar
The Type 345 (MR35) fire-control radar system is used to guide the HQ-7 short-range surface-to-air missile. The system is installed on many modern, and retrofitted Chinese navy ships. The Type 345 fire control radar appears to be based on the Thomson-CSF Castor CTM (Conduite de Tir Multisensor) fire control radar which is a Castor II/J with a separate IR camera (Piraña) and TV tracker and not the oft quoted Castor IIC. It is possible however, that the Castor IIC was bought initially but the CTM was also bought later. It uses a TWT transmitter with a Cassegrain antenna. Pulse compression (7.5 μs pulse) and pulse Doppler processing (first blind speed 1000 m/s) techniques are used and it can acquire ASHM at 18 km and fighter at 30 km with tracking range between 350 m and 30 km. Specifications * System: Radar+ IR compound tracking * Band: Ku band * IR: 3~5 μm & 8~12 μm * Range performance: 30 km against 2 m² RCS aircraft ; 15 km against sea-skimmin ... [...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] |
HQ-7
The HQ-7 is a short-range surface-to-air missile (SAM) from the 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 List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig .... It was developed by the Changfeng Electromechanical Technology Design Institute from the French R-440 Crotale SAM. It entered service in the early 1980s. A ground battery consists of a short-range radar and three launchers. Each launcher has four or eight missiles. Variants ;HQ-7A Original command-guided version. ;HHQ-7 Naval variant. ;HQ-7B Improved version. ;FM-80 Export version of the HQ-7A. ;FM-90 Export version of the HQ-7B. ;FM-90N Naval variant of the FM-90. Operators ; FM-90. ; *Bangladesh Army: FM-90 *Bangladesh Air Force: FM-90 *Bangladesh Navy: FM-90N and HHQ-7. ; HQ-7A, HQ-7B and HHQ-7. ; FM-80. ; FM-90 and FM-90N. ; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassegrain Antenna
In telecommunications and radar, a Cassegrain antenna is a parabolic antenna in which the feed antenna is mounted at or behind the surface of the concave main parabolic reflector dish and is aimed at a smaller convex secondary reflector suspended in front of the primary reflector. The beam of radio waves from the feed illuminates the secondary reflector, which reflects it back to the main reflector dish, which reflects it forward again to form the desired beam. The Cassegrain design is widely used in parabolic antennas, particularly in large antennas such as those in satellite ground stations, radio telescopes, and communication satellites. Geometry The primary reflector is a paraboloid, while the shape of the convex secondary reflector is a hyperboloid. The geometrical condition for radiating a collimated, plane wave beam is that the feed antenna is located at the far focus of the hyperboloid, while the focus of the primary reflector coincides with the near focus of the hyp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luhu Class Destroyer
The Type 052 (NATO/ OSD Luhu-class destroyer is a class of destroyers developed in the People's Republic of China (PRC) for the People's Liberation Army Navy (PLAN). The Type 052 was an intermediate between the obsolescent Type 051Kirchberger (2015): page 186 and the modern Type 052B destroyers.Kirchberger (2015): page 195McDevitt (2017): page 57 They were the first PLAN destroyers powered by gas turbines, and the first PLAN ships with modern combat direction systems (CDS). They were also part of the first generation of PLAN warships armed with surface-to-air missiles in the form of the short-range Crotale (called HQ-7 in Chinese service.)Kirchberger (2015): page 231 The Type 052 used subsystems imported from the United States and the European Union. The embargo after the 1989 Tiananmen Square protests and massacre ended the supply of and support for those subsystems, limiting production to two ships and likely impacting their operating efficiency due to system integration iss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luhai Class Destroyer
The Type 051B destroyer (NATO reporting name: Luhai class) is a class of destroyer built by the People's Republic of China. It consists of only one ship, ''Shenzhen'' (167). When ''Shenzhen'' was commissioned into the People's Liberation Army Navy Surface Force in 1998, it was then the largest surface combatant that China had ever built. It resembles in many ways an enlarged version of the , and is one of the first PLAN ships with a slope-sided hull to reduce radar signature. The Type 051B was succeeded by the domestic Type 052B destroyer, discounting the 4 Soviet-built Sovremenny-class destroyer that China purchased in the interim. History ''Shenzhen'' was laid down by the Dalian Shipyard in May 1996. The ''Shenzhen'' was intended to be an experimental vessel with improvements over the Luhu class in terms of modular construction and stealth. The ship is powered by two indigenous steam turbine engines, due to Dalian Shipyard's experience in steam turbine construction and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jiangwei Class Frigate
The Type 053H3 (NATO reporting name: Jiangwei II) is a class of Chinese frigates that entered service with the People's Liberation Army Navy Surface Force in the 1990s and 2000s. The class comprised 10 vessels, all of which remain in active service. Two of them are sold to the Bangladesh Navy. They were a follow-on of the Type 053H2G (Jiangwei I) class. The used by the Pakistan Navy was based on the Type 053H3. History In the 1980s, the PLAN ordered Shanghai-based Hudong Shipyard (now Hudong–Zhonghua Shipyard) to build a replacement for the Type 053K air defence frigate. The new class was based on the Type 053H2 frigate and designated Type 053H2G. Development was carried out under ''Project 055''. The Type 053H2G was slightly larger than the Type 053H2, and equipped with HQ-61B surface-to-air missiles (SAM). However, the HQ-61 proved unsatisfactory and the class was quickly superseded by the Type 053H3 which was an improved Type 053H2G equipped with HQ-7 SAMs. The HQ-7 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Radars
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
