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High Energy Liquid Laser Area Defense System
The High Energy Liquid Laser Area Defense System (HELLADS), is a counter-RAM system under development that will use a powerful (150 kW) laser to shoot down rockets, missiles, artillery and mortar shells. The initial system will be demonstrated from a static ground-based installation, but in order to eventually be integrated on an aircraft, the final design would require a maximum weight of 750 kg (1,650 lb) and a maximum envelope of 2 cubic meters (70.6 feet3). Development is being funded by the Pentagon's Defense Advanced Research Projects Agency (DARPA). History Liquid lasers that have large cooling systems can fire continuous beams, while solid state laser beams are more intense but generally must be fired in pulses to stop them from overheating. (As long as the heat transfer requirements are met solid state lasers can run continuously.) In the past, both types of lasers were very bulky because of their need for these huge cooling systems. The only aircr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane's International Defence Review
''Jane's International Defence Review'' (''IDR'') is a monthly magazine reporting on military news and technology. History and profile ''International Defense Review'' was established in 1968. It was published by Interavia SA (Geneva, Switzerland) until it was acquired by Jane's Publishing Group in 1987. According to one entry in WorldCat, the name of the magazine was ''International Defense Review'', but another WorldCat entry states that the name was ''International Defence Review'' from 1968 until 1995. Yet another WorldCat entry states that the title is ''IHS Jane's International Defence Review'' after 2012. The ''IDR'' is one of a number of military-related publications named after Fred T. Jane, an Englishman who first published '' Jane's All the World's Fighting Ships'' in 1898. It is a unit of Jane's Information Group, which was acquired by IHS Inc. in 2007. The magazine provides in-depth coverage and analysis of air, land and sea platforms and systems, and regularly fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Defense
Missile defense is a system, weapon, or technology involved in the detection, tracking, interception, and also the destruction of attacking missiles. Conceived as a defense against nuclear-armed intercontinental ballistic missiles (ICBMs), its application has broadened to include shorter-ranged non-nuclear tactical and theater missiles. China, France, India, Iran, Israel, Italy, Russia, Taiwan, the United Kingdom and the United States have all developed such air defense systems. Missile defense categories Missile defense can be divided into categories based on various characteristics: type/range of missile intercepted, the trajectory phase where the intercept occurs, and whether intercepted inside or outside the Earth's atmosphere: Type/range of missile intercepted These types/ranges include strategic, theater and tactical. Each entails unique requirements for intercept, and a defensive system capable of intercepting one missile type frequently cannot intercept other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Lasers
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Martin
The Lockheed Martin Corporation is an American aerospace, arms, defense, information security, and technology corporation with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in North Bethesda, Maryland, in the Washington, D.C. area. Lockheed Martin employs approximately 115,000 employees worldwide, including about 60,000 engineers and scientists as of January 2022. Lockheed Martin is one of the largest companies in the aerospace, military support, security, and technologies industry. It is the world's largest defense contractor by revenue for fiscal year 2014.POC Top 20 Defence Contractors of 2014 . Retrieved: July 2015 In 2013, 78% of Lockheed Martin's revenues came from military sales; [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DARPA Projects
The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Advanced Research Projects Agency (ARPA), the agency was created on February 7, 1958, by President Dwight D. Eisenhower in response to the Soviet launching of Sputnik 1 in 1957. By collaborating with academia, industry, and government partners, DARPA formulates and executes research and development projects to expand the frontiers of technology and science, often beyond immediate U.S. military requirements.Dwight D. Eisenhower and Science & Technology, (2008). Dwight D. Eisenhower Memorial CommissionSource ''The Economist'' has called DARPA the agency "that shaped the modern world," and pointed out that " Moderna's COVID-19 vaccine sits alongside weather satellites, GPS, drones, stealth technology, voice interfaces, the personal computer an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Tactical Laser
The Advanced Tactical Laser (ATL) program was a US military program to mount a high energy laser weapon on an aircraft, initially the AC-130 gunship, for use against ground targets in urban or other areas where minimizing collateral damage is important. The laser was a 100 kilowatt-class chemical oxygen iodine laser (COIL). It was expected to have a tactical range of approximately twenty kilometres and weigh about 5,000–7,000 kg. This program is distinct from the Airborne Laser, which was a much larger system designed to destroy enemy missiles in the boost phase. History In 1996, the blue-beam air-to-ground tactical laser was test-fired from an AC-130 (AC-X Son of Spectre) aircraft at the northern annex of the White Sands Proving Grounds near Fort Wingate, New Mexico. Raytheon was later awarded the contract to add the High Energy Microwave Weapon to the same platform where both systems would be operationally available for combat use at the same time. In 2002, the Spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airborne Laser
An airborne laser (ABL) is a laser system operated from a flying platform, as in the: * Soviet/Russian Beriev A-60 (1981, active) * American Boeing YAL-1 (2002-2012, scrapped) * An American modified NKC-135A unit (1975-1984, in storage.) Development Development of airborne lasers in the United States began with the Airborne Laser Laboratory (ALL) developed at the USAF Weapons Lab (AFWL), now known as Phillips Laboratory, in the late 1970's and early 1980's. The ALL was based on a carbon dioxide gas dynamic laser (GDL), operating at the infrared wavelength of 10.6 microns, and mounted on a modified Boeing KC-135 Stratotanker (NC-135). It was successfully tested, and in 1981 destroyed five AIM-9 Sidewinder missiles and a simulated cruise missile ( BQM-34). Of note is that the ALL demonstrated one of the early uses of deformable mirror technology. To compensate for various atmospheric aberrations arising from turbulence and absorption of energy from the beam itself, it was necessa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arleigh Burke-class Destroyer
The ''Arleigh Burke'' class of guided-missile destroyers (DDGs) is a United States Navy class of destroyer built around the Aegis Combat System and the SPY-1D multi-function passive electronically scanned array radar. The class is named for Admiral Arleigh Burke, an American destroyer officer in World War II and later Chief of Naval Operations. The lead ship, , was commissioned during Admiral Burke's lifetime. These warships were designed as multi-mission destroyers, able to fulfill the strategic land strike role with Tomahawk missiles; anti-aircraft warfare (AAW) role with powerful Aegis radar and surface-to-air missiles; anti-submarine warfare (ASW) with towed array sonar, anti-submarine rockets, and ASW helicopters; and anti-surface warfare (ASuW) with Harpoon missiles. With upgrades to their AN/SPY-1 phased radar systems and their associated missile payloads as part of the Aegis Ballistic Missile Defense System, the ships of this class have also demonstrated capabil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-to-air Missile
A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground to destroy aircraft or other missiles. It is one type of anti-aircraft system; in modern armed forces, missiles have replaced most other forms of dedicated anti-aircraft weapons, with anti-aircraft guns pushed into specialized roles. The first attempt at SAM development took place during World War II, but no operational systems were introduced. Further development in the 1940s and 1950s led to operational systems being introduced by most major forces during the second half of the 1950s. Smaller systems, suitable for close-range work, evolved through the 1960s and 1970s, to modern systems that are man-portable. Shipborne systems followed the evolution of land-based models, starting with long-range weapons and steadily evolving toward smaller designs to provide a layered defence. This evolution of design increasin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller and a system of communications with the UAV. The flight of UAVs may operate under remote control by a human operator, as remotely-piloted aircraft (RPA), or with various degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that have no provision for human intervention. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,A Decentralized Cluster Formation Containment Framework for Multirobot Systems IEEE T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Atomics Avenger
The General Atomics MQ-20 Avenger (formerly Predator C) is a developmental unmanned combat aerial vehicle built by General Atomics Aeronautical Systems for the U.S. military. Design and development Unlike the previous MQ-1 Predator and MQ-9 Reaper (Predator B) drones, the Avenger is powered by a turbofan engine, and its design includes stealth features such as internal weapons storage and an S-shaped exhaust for reduced infrared and radar signatures. Its first flight occurred on 4 April 2009. The Avenger will support the same weapons as the MQ-9, and carry the Lynx synthetic aperture radar and a version of the F-35 Lightning II's electro-optical targeting system (EOTS), called the Advanced Low-observable Embedded Reconnaissance Targeting (ALERT) system. The Avenger will use the same ground support infrastructure as the MQ-1 and MQ-9, including the ground control station and existing communications networks. Operational history Flight testing The first flight of the fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
