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Type 054 Frigate
The Type 054 (NATO Codename Jiangkai I) is a class of Chinese multi-role frigates that were commissioned in the People's Liberation Army Navy Surface Force in 2005. They superseded the Type 053H3 frigates. Only two ships, ''Ma'anshan'' (525), and ''Wenzhou'' (526), were completed before production switched to the VLS equipped improved Type 054A frigate. Design The Type 054 has a stealthy hull design with sloped surfaces, radar absorbent materials, and a reduced superstructure clutter. The main anti-ship armament were YJ-83 sea-skimming anti-ship cruise missiles in two four-cell launchers. It retained the HQ-7 SAM, an improved version of the French Crotale, from the preceding Type 053H3; the HQ-7 had a ready-to-fire 8-cell launcher, with 16 stored in the automatic reloader. Short range defence was improved with four AK-630 CIWS turrets. A 100 mm main gun, also based on a French design, was mounted. Both ships were powered by four CODAD Type 16 PA6 STC marine diesel engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 344 Radar
The Type 344 is a multifunctional fire control radar (FCR) developed by the Xian Research Institute of Navigation Technology (西安导航技术研究所)/XRINT/ No. 20th Research Institute. It can track two batches of target simultaneously and measure the position deviation between the shell and the target, constantly calibrating the gun's firing parameters in action. The system also includes a TV tracker and laser range finder. It is used to control 76m, 100mm and 130mm guns in PLAN service. __TOC__ Specifications * Uses phase scanning techniques * Uses pulse compression, MTI (Moving Target Indicator) and CFAR (Constant False Alarm Rate) * Traveling Wave Tube (TWT) amplifier * Independent search capability in 10" X 10" * Able to track both surface and airborne targets * TV tracking/Laser Range finding See also * Type 051C Luzhou class destroyer * Type 052 Luhu class destroyer * Type 052B Guangzhou class destroyer * Type 052C Lanzhou class destroyer * Type 054 Ma'anshan cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket
A rocket (from it, rocchetto, , bobbin/spool) is a vehicle that uses jet propulsion to accelerate without using the surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. Rockets work more efficiently in a vacuum and incur a loss of thrust due to the opposing pressure of the atmosphere. Multistage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. Compared with airbreathing engines, rockets are lightweight and powerful and capable of generating large accelerations. To control their flight, rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, or gravity. Rockets for military and recreational uses date back to at least 13th-century China. Signific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called naval mine, mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with naval artillery, large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface combatant , surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Warfare
Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are typically carried out to protect friendly shipping and coastal facilities from submarine attacks and to overcome blockades. Successful ASW operations typically involved a combination of sensor and weapon technologies, along with effective deployment strategies and sufficiently trained personnel. Typically, sophisticated sonar equipment is used for first detecting, then classifying, locating, and tracking a target submarine. Sensors are therefore a key element of ASW. Common weapons for attacking submarines include torpedoes and naval mines, which can both be launched from an array of air, surface, and underwater platforms. ASW capabilities are often considered of significant strategic importance, particularly following provocative instan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 210 100 Mm Naval Gun
The Type 210 automatic single 100 mm naval gun is the Chinese modification of the Compact model of the French 100 mm naval gun. There are at least two variants, with both sharing similar characteristics with the French weapon. Type 210 The Type 210 was developed to make the French gun suitable for Chinese deployment. The French gun was incompatible with Soviet and Chinese electronics; it was easier to make the gun compatible with these electronics, and Western electronics, than to alter the electronic suites already aboard warships. Furthermore, the Chinese added the capability to fire laser- and infrared-guided shells; this required significant changes to the magazine. The weapon's maximum rate of fire for a single type of unguided round was 90 rounds per minute. The rate of fire was reduced when switching between different types of ammunition. Type H/PJ87 The Type H/PJ87 100 mm naval gun was a further development of the Type 210, but suffered from jamming. It armed th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HQ-10
The HQ-10 () is a short range surface-to-air missile designed by China Aerospace Science and Technology Corporation (CASC), currently in service as a point defense missile system aboard PLA Navy warships. Development The system was first adopted by the Liaoning aircraft carrier and the Type 056 corvette in 2011. Design The design of the HQ-10 places it in a similar role to the American Rolling Airframe Missile, both serving as point defense missile systems. Each HQ-10 missile has a length of around 2 m and a width of around 0.12 m. The missile has a range of 9 km against subsonic targets and 6 km against supersonic targets, and a flight altitude as low as 1.5 meters. The guidance system is said to be an advanced matrix imaging infrared (IIR) seeker. However, it appears to have a pair of horn like protrusions at the front of the missile which may indicate the existence of passive radar seekers or semi-active radar seekers. The launcher is designed to be customisable in term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-802
The YJ-83 (; NATO reporting name: CSS-N-8 Saccade) is a Chinese subsonic anti-ship cruise missile. It is manufactured by the China Aerospace Science and Industry Corporation Third Academy.Gromley et al.: page 101 Description The YJ-83 uses microprocessors and a strapdown inertial reference unit (IRU); these are more compact than the equivalent electronics used in the YJ-8 and the export C-802, allowing the YJ-83 to have a 180-km range at Mach 0.9. The missile is powered by the Chinese CTJ-2 turbojet, and carries 190-kg high-explosive fragmentation warhead. Terminal guidance is by an active radar. The air-launched YJ-83K has a range of 180-km, a cruise speed of Mach 0.9, and a 165 kg high-explosive, semi-armour piercing warhead. The improved YJ-83KH uses a imaging-infrared seeker and has a range of 230 km; reportedly it may receive course corrections by remote link.Gromley et al.: page 102 The YJ-83 entered service with the People's Liberation Army Navy in 1998-1999 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ELINT
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] |
Electronic Countermeasures
An electronic countermeasure (ECM) is an electrical or electronic device designed to trick or deceive radar, sonar, or other detection systems, like infrared (IR) or lasers. It may be used both offensively and defensively to deny targeting information to an enemy. The system may make many separate targets appear to the enemy, or make the real target appear to disappear or move about randomly. It is used effectively to protect aircraft from guided missiles. Most air forces use ECM to protect their aircraft from attack. It has also been deployed by military ships and recently on some advanced tanks to fool laser/IR guided missiles. It is frequently coupled with stealth advances so that the ECM systems have an easier job. Offensive ECM often takes the form of jamming. Self-protecting (defensive) ECM includes using blip enhancement and jamming of missile terminal homers. History The first example of electronic countermeasures being applied in a combat situation took place during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Warning Receiver
Radar warning receiver (RWR) systems detect the radio emissions of radar systems. Their primary purpose is to issue a warning when a radar signal that might be a threat is detected, like a fighter aircraft's fire control radar. The warning can then be used, manually or automatically, to evade the detected threat. RWR systems can be installed in all kind of airborne, sea-based, and ground-based assets such as aircraft, ships, automobiles, military bases. This article is focused mainly on airborne military RWR systems; for commercial police speed detection radar RWR systems, see radar detector. Depending on the market the RWR system is designed for, it can be as simple as detecting the presence of energy in a specific radar band, such as the frequencies of known surface-to-air missile systems. Modern RWR systems are often capable of classifying the source of the radar by the signal's strength, phase and signal details. The information about the signal's strength and waveform can t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The high frequency radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
