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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] |
Airshow China
China International Aviation & Aerospace Exhibition (), also known as the Airshow China () or Zhuhai Airshow (), is the largest airshow and aerospace trade expo in China. It has been held in even years in Zhuhai, Guangdong since 1996. History 1996 The first Airshow China was held from 5 to 10 November 1996. Performances included: * Su-27 cobra * Il-78 aerial refueling * British "Golden Dream" aerobatic team * "World Aerobatics Grand Prix" 1998 The second Airshow China was held from 15 to 22 November 1998. Performances included: * People's Liberation Army Air Force " August 1st" * Russian Knights * Canadian "Northern Lights" (later as Northern Lights Combat Air Support and now Lortie Aviation Inc.) using the Extra 300L * British "Golden Dream" aerobatic team * Russian Gromov Flight Research Institute cobra and aerial refueling 2000 The third Airshow China was held from 6 to 12 November 2000. Performances included: *Kamov Ka-50 * Sukhoi Su-30MK * People's L ... [...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] |
HJ-10
HJ-10 (or "Red Arrow 10") is a Chinese ground-launched anti-tank missile developed by Norinco. It has a tandem high-explosive anti-tank (HEAT) warhead, that may penetrate of conventional steel armour protected by explosive reactive armour. The maximum range is , with pre- or post-launch lock-on. Deployment AFT-10, equipped on the ZBD-04A Anti-tank platform, is the ATGM version of the HJ-10 platform and it is the first one to be developed. Eight missiles and a retractable sensor mast is mounted on the ZBD-04, with sensors including a thermal camera, TV camera and a laser range finder. A millimeter-wave radar system is mounted at the front-right corner of the vehicle to improve all-weather operation capability. Variants AFT-10 The AFT-10 () is the surface-to-surface variant in the HJ-10 family, receiving designation of AFT-10. AFT-10 is a fiber-optic wire-guided missile that equipped with ZBD-04 Anti-tank platform. AFT-10 was first revealed in its deployment in Peace Mission 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turboshaft
A turboshaft engine is a form of gas turbine that is optimized to produce shaftpower rather than jet thrust. In concept, turboshaft engines are very similar to turbojets, with additional turbine expansion to extract heat energy from the exhaust and convert it into output shaft power. They are even more similar to turboprops, with only minor differences, and a single engine is often sold in both forms. Turboshaft engines are commonly used in applications that require a sustained high power output, high reliability, small size, and light weight. These include helicopters, auxiliary power units, boats and ships, tanks, hovercraft, and stationary equipment. Overview A turboshaft engine may be made up of two major parts assemblies: the 'gas generator' and the 'power section'. The gas generator consists of the compressor, combustion chambers with ignitors and fuel nozzles, and one or more stages of turbine. The power section consists of additional stages of turbines, a gear reduction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BeiDou
The BeiDou Navigation Satellite System (BDS; ) is a Chinese satellite navigation system. It consists of two separate satellite constellations. The first BeiDou system, officially called the BeiDou Satellite Navigation Experimental System and also known as BeiDou-1, consisted of three satellites which, beginning in 2000, offered limited coverage and navigation services, mainly for users in China and neighboring regions. BeiDou-1 was decommissioned at the end of 2012. The second generation of the system, officially called the BeiDou Navigation Satellite System (BDS) and also known as COMPASS or BeiDou-2, became operational in China in December 2011 with a partial constellation of 10 satellites in orbit. Since December 2012, it has been offering services to customers in the Asia-Pacific region. In 2015, China launched the third generation BeiDou system (BeiDou-3) for global coverage. The first BDS-3 satellite was launched on 30 March 2015. On 27 December 2018, BeiDou Navigation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Communications
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 satelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fly-by-wire
Fly-by-wire (FBW) is a system that replaces the conventional manual flight controls of an aircraft with an electronic interface. The movements of flight controls are converted to electronic signals transmitted by wires, and flight control computers determine how to move the actuators at each control surface to provide the ordered response. It can use mechanical flight control backup systems (like the Boeing 777) or use fully fly-by-wire controls.Fly by Wire Flight Control Systems Sutherland Improved fully fly-by-wire systems interpret the pilot's control inputs as a desired outcome and calculate the control surface positions required to achieve that outcome; this results in various combinations of rudder, elevator, aileron, flaps and engine controls in different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Death Of Osama Bin Laden
On May 2, 2011, Osama bin Laden, the founder and first leader of the Islamist militant group al-Qaeda, was shot several times and killed at his compound in the Pakistani city of Abbottabad, by United States Navy SEALs of the U.S. Naval Special Warfare Development Group (also known as DEVGRU or SEAL Team Six). The operation, code-named Operation Neptune Spear, was carried out in a CIA-led operation with Joint Special Operations Command, commonly known as JSOC, coordinating the Special Mission Units involved in the raid. In addition to SEAL Team Six, participating units under JSOC included the 160th Special Operations Aviation Regiment (Airborne)—also known as "Night Stalkers"—and operators from the CIA's Special Activities Division, which recruits heavily from former JSOC Special Mission Units. The operation's success ended a nearly decade-long manhunt for bin Laden, who was wanted for masterminding the September 11 attacks on the United States. The raid, approved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pakistan
Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 243 million people, and has the world's Islam by country#Countries, second-largest Muslim population just behind Indonesia. Pakistan is the List of countries and dependencies by area, 33rd-largest country in the world by area and 2nd largest in South Asia, spanning . It has a coastline along the Arabian Sea and Gulf of Oman in the south, and is bordered by India to India–Pakistan border, the east, Afghanistan to Durand Line, the west, Iran to Iran–Pakistan border, the southwest, and China to China–Pakistan border, the northeast. It is separated narrowly from Tajikistan by Afghanistan's Wakhan Corridor in the north, and also shares a maritime border with Oman. Islamabad is the nation's capital, while Karachi is its largest city and fina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Killing Of Osama Bin Laden
On May 2, 2011, Osama bin Laden, the founder and first leader of the Islamist militant group al-Qaeda, was shot several times and killed at his compound in the Pakistani city of Abbottabad, by United States Navy SEALs of the U.S. Naval Special Warfare Development Group (also known as DEVGRU or SEAL Team Six). The operation, code-named Operation Neptune Spear, was carried out in a CIA-led operation with Joint Special Operations Command, commonly known as JSOC, coordinating the Special Mission Units involved in the raid. In addition to SEAL Team Six, participating units under JSOC included the 160th Special Operations Aviation Regiment (Airborne)—also known as "Night Stalkers"—and operators from the CIA's Special Activities Division, which recruits heavily from former JSOC Special Mission Units. The operation's success ended a nearly decade-long manhunt for bin Laden, who was wanted for masterminding the September 11 attacks on the United States. The raid, approved by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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