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Type 055 Destroyer
The Type 055 destroyer (NATO/ OSD Renhai-class cruiser) is a class of stealth guided-missile destroyers (guided-missile cruisers per NATO/OSD standard) being constructed for the Chinese People's Liberation Army Navy. It is a multi-mission design; the combination of sensors and weapons suggests a main role of area air defence, with anti-submarine warfare capabilities surpassing previous Chinese surface combatants. The Type 055 is expected to undertake expeditionary missions and form the primary escort for Chinese aircraft carriers. The United States classifies these ships as cruisers. The United States Navy defines a cruiser as a large multi-mission surface combatant with flag facilities; this suggests the U.S. expects the Type 055 to fulfill a similar role as the . Development The People's Liberation Army Navy was interested in a large destroyer from as early as the late-1960s. A development program, code-named "055", initiated in 1976 was cancelled in 1983 after encounterin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jiangnan Shipyard
Jiangnan Shipyard () is a historic shipyard in Shanghai, China. The shipyard has been state-owned since its founding in 1865 and is now operated as Jiangnan Shipyard (Group) Co. Ltd. Before 2009, the company was south of central Shanghai at 2 Gaoxing Road (). In 2009, the shipyard was moved to Changxing Island, in the mouth of the Yangtze River to the north of urban Shanghai. (). The shipyard builds, repairs and converts both civilian and military ships. Other activities include the manufacture of machinery and electrical equipment, pressure vessels and steel works for various land-based products. Ship building The shipyard main production is: liquefied gas carriers, car carriers, crude oil tankers, Panamax bulk carriers, Handymax bulk carriers, Lake suitable bulk carriers, multi-purpose cargo ships, and fast feeder container ships. The shipyard recently delivered 23,000 TEU LNG-fueled containership the ''CMA CGM Champs Elysées'', but there was a delay of at least 10 m ... [...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] |
Stealth Ship
A stealth ship is a ship that employs stealth technology construction techniques in an effort to make it harder to detect by one or more of radar, visual, sonar, and infrared methods. These techniques borrow from stealth aircraft technology, although some aspects such as wake and acoustic signature reduction (acoustic quieting) are unique to stealth ships' design. Although radar cross-section (RCS) reduction is a fairly new concept, many other forms of masking a ship have existed for centuries or even millennia. Shaping In designing a ship with a reduced radar signature, the main concerns are radar beams originating near or slightly above the horizon (as seen from the ship) coming from distant patrol aircraft, other ships, or sea-skimming anti-ship missiles with active radar seekers. Therefore, the shape of the ship avoids vertical surfaces, which are effective at reflecting such beams directly back to the emitter. Retro-reflective right angles are eliminated to avoid the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Class
A ship class is a group of ships of a similar design. This is distinct from a ship type, which might reflect a similarity of tonnage or intended use. For example, is a nuclear aircraft carrier (ship type) of the (ship class). In the course of building a class of ships, design changes might be implemented. In such a case, the ships of different design might not be considered of the same class; each variation would either be its own class, or a subclass of the original class (see for an example). If ships are built of a class whose production had been discontinued, a similar distinction might be made. Ships in a class often have names linked by a common factor: e.g. s' names all begin with T (, , ); and s are named after American battles (, , , ). Ships of the same class may be referred to as sister ships. Naval ship class naming conventions Overview The name of a naval ship class is most commonly the name of the lead ship, the first ship commissioned or built of its design. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congressional Research Service
The Congressional Research Service (CRS) is a public policy research institute of the United States Congress. Operating within the Library of Congress, it works primarily and directly for members of Congress and their committees and staff on a confidential, nonpartisan basis. CRS is sometimes known as Congress' think tank due to its broad mandate of providing research and analysis on all matters relevant to national policymaking. CRS has roughly 600 employees reflecting a wide variety of expertise and disciplines, including lawyers, economists, reference librarians, and scientists. In the 2016 fiscal year, it was appropriated a budget of roughly $106.9 million by Congress. CRS was founded during the height of the Progressive Era as part of a broader effort to professionalize the government by providing independent research and information to public officials. Its work was initially made available to the public, but between 1952 and 2018 was restricted only to members of Congr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Office Of The Secretary Of Defense
The Office of the Secretary of Defense (OSD) is a headquarters-level staff of the United States Department of Defense. It is the principal civilian staff element of the U.S. Secretary of Defense, and it assists the Secretary in carrying out authority, direction and control of the Department of Defense in the exercise of policy development, planning, resource management, fiscal, and program evaluation responsibilities. OSD (along with the Joint Staff) is the Secretary of Defense's support staff for managing the Department of Defense, and it corresponds to what the Executive Office of the President of the U.S. is to the U.S. president for managing the whole of the Executive branch of the federal government. OSD includes the immediate offices of the Secretary (SECDEF) and the Deputy Secretary of Defense (DEPSECDEF), as well as the Under Secretary of Defense for Research and Engineering; Under Secretary of Defense for Acquisition and Sustainment; Under Secretary of Defense for Pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harbin Z-20
The Harbin Z-20 (Chinese: 直-20; official codename Chinese: “神雕”, "Divine Eagle") is a Chinese medium-lift utility helicopter produced by the Harbin Aircraft Industry Group (HAIG). It was first flown on 23 December 2013 and has a maximum takeoff weight in the range of . The Z-20 can operate from locations above in altitude as well as from the ''Liaoning'' aircraft carrier. It is regarded to be comparable in performance to the US-made Sikorsky UH-60 Black Hawk helicopter, of which the civilian Sikorsky S-70C-2 variant has been used by the People's Liberation Army since 1984. Development The People's Liberation Army Air Force (PLAAF) has had a requirement for a high-altitude medium utility helicopter that can operate in the mountainous regions in China since the 1980s. In 1984, the PLAAF acquired 24 Sikorsky S-70C-2s with enhanced General Electric T700-701A engines. These 24 Sikorsky S-70C-2 helicopters are the civilian version of the military UH-60 Black Hawk, but wen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Changhe Z-18
The Changhe Z-18, also known as Z-8G, is a medium-lift transport helicopter developed by Changhe Aircraft Industries Corporation (CAIC) to replace the Changhe/Harbin Z-8. Design and development The Z-18 is a development of the Avicopter AC313 and Changhe/Harbin Z-8, both of which are developments of the Aérospatiale SA 321 Super Frelon. Notable changes include a redesigned lower fuselage similar to the AC313 which results in larger internal space. It also reportedly makes greater use of titanium and composites in its rotor blades and rotor, and replaces the Z-8's boat-shaped lower fuselage with a tail ramp for small vehicles. It has a glass cockpit and is powered by three WZ-6C turboshafts. The Z-18's maximum takeoff weight (MTOW) is 13.8 tonnes. In late-2014, the only People's Liberation Army Navy (PLAN) ships able to operate the helicopter at MTOW were aircraft carriers and large amphibious assault ships. Operational history The Z-18F anti-submarine warfare (ASW) version w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harbin Z-9
The Harbin Z-9 ( NATO reporting name "Haitun", for Dolphin) is a Chinese military utility helicopter with civilian variants. It is a licensed variant of the French Eurocopter AS365 Dauphin, and is manufactured by Harbin Aircraft Manufacturing Corporation. Design and development The first Z-9 flew in 1981, and was built in China from components supplied by Aérospatiale as part of a production patent bought on 15 October 1980. On 16 January 1992, the indigenous variant Z-9B, constructed with 70% Chinese-made parts, flew successfully. The flight test was completed in November 1992 and the design was finalized a month later. Z-9B production began in 1993 and entered PLA service in 1994. The Z-9B features an 11-blade Fenestron faired-in tail rotor with wider-chord, all-composite blades replacing the 13-blade used in the original AS365N. As a light tactical troop transport, the Z-9 has the capacity to transport 10 fully armed soldiers. Generally the Z-9 is identical to the AS365 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yu-7 Torpedo
The Yu-7 (; from ) is a lightweight torpedo developed by the People's Republic of China. It entered service in the 1990s as the principal anti-submarine weapon of major People's Liberation Army Navy (PLAN) warships. The Yu-7 is a derivative of the Whitehead Alenia Sistemi Subacquei (WASS) A244/S torpedo. Development Development of an effective lightweight anti-submarine (ASW) torpedo for the PLAN began in the 1980s. The program was probably based on 40 A244/S torpedoes purchased for evaluation from Italy in 1987. Additional technology may have been reverse engineered from a United States Mark 46 Mod 2 torpedo recovered from the South China Sea in 1978 by Chinese fishermen. The torpedo was initially equipped with electric propulsion, but inadequate performance led to a redesign powered by Otto fuel II. Testing was carried out at the 750 Testing Range in Kunming up to 1988. Description The Yu-7 has contrarotating propellers. Aboard surface warships, it is fired from Type 7424 tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CJ-10
The CJ-10 () is a second-generationGormley et al.: p.102 Chinese ground-based land-attack missile.United States Office of the Secretary of Defense: Annual Report To Congress 2015, p.39 It is derived from the Kh-55 missile. It is reportedly manufactured by the China Aerospace Science and Industry Corporation Third Academy and the China Haiying Electro-Mechanical Technology Academy. Initially, the CJ-10 was identified as the DH-10 () by Western media and analysts.Easton: p.1 United States Department of Defense reports used "DH-10" until 2011,United States Office of the Secretary of Defense: Annual Report To Congress 2011, p.2United States Office of the Secretary of Defense: Annual Report To Congress 2011, p.31 and then "CJ-10" from 2012.United States Office of the Secretary of Defense: Annual Report To Congress 2012, p.21United States Office of the Secretary of Defense: Annual Report To Congress 2012, p.42 Publications may use both terms interchangeably.United States National Air and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YJ-21
The YJ-21 () is a Chinese anti-ship ballistic missile. The missile system is reportedly capable of engaging land targets and surface warships with a hypersonic, maneuverable, conventional warhead. The missile is possibly based on an export-oriented ballistic missile produced by China, named CM-401, but with more advanced features and capabilities. Publications of the PLA Navy suggested the YJ-21 is derived from DF-21D anti-ship ballistic missiles. The missile is claimed with a flight speed of Mach 6, and a terminal speed of Mach 10. The missile was revealed by Chinese Navy ahead of its 73rd anniversary, launching from a universal vertical launch system of the Type 055 destroyer. An export version called YJ-21E was showcased in Airshow China 2022. Operators *People's Liberation Army Navy See also *YJ-18 *YJ-12 *DF-21D The Dong-Feng 21 (DF-21; NATO reporting name CSS-5 - Dong-Feng () is a two-stage, solid-fuel rocket, single-warhead medium-range ballistic missile (MRBM) in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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