guided missile

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guided missile,

self-propelled, unmanned space or air vehicle carrying an explosive warhead. Its path can be adjusted during flight, either by automatic self-contained controls or remote human control. Guided missiles are powered either by rocketrocket,
any vehicle propelled by ejection of the gases produced by combustion of self-contained propellants. Rockets are used in fireworks, as military weapons, and in scientific applications such as space exploration.
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 engines or by jet propulsionjet propulsion,
propulsion of a body by a force developed in reaction to the ejection of a high-speed jet of gas. Jet Propulsion Engines

The four basic parts of a jet engine are the compressor, turbine, combustion chamber, and propelling nozzles.
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. The American, R. H. GoddardGoddard, Robert Hutchings,
1882–1945, American physicist and rocket expert, b. Worcester, Mass., grad. Worcester Polytechnic Institute (B.S., 1908), Ph.D. Clark Univ., 1911. From 1914 he was associated with Clark Univ., becoming a professor of physics in 1919.
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, did important early work on rockets, but guided missiles were first developed in their military form by the Germans, who in World War II employed V-1 and V-2 missiles against Great Britain and the Low Countries. The V-1 was the first cruise missile; it was powered through most of its flight and followed a straight-line trajectory to its target. The V-2, which was powered only during the first part of its flight, was the world's first operational ballistic missile, with a powered launch followed by an unpowered parabolic trajectory, sometimes guided by radio. Such missiles have since become the key strategic weapon of modern warfare and a crucial, and much used, tactical weapon.

Guided missiles are of various types and ranges. Missiles may be aerodynamic, i.e., controlled by aerodynamic surfaces and following a straight-line trajectory to the target, or ballistic, i.e., powered during flight and following a parabolic trajectory. Long-range missiles generally have nuclear warheads, while short-range missiles usually have high-explosive warheads.

Aerodynamic missiles are of four types. Air-to-air missiles are fired by aircraft at enemy aircraft and are often guided by self-contained controls that detect and target the missile toward heat sources. Surface-to-air missiles, such as the U.S. Patriot missile and Israeli Iron Dome system missiles, operate against aircraft or other missiles. Both types may supplement antiaircraft guns. Air-to-surface missiles, launched by aircraft against ground positions, are generally radio-controlled. Surface-to-surface missiles (including ship and submarine launched versions) include many different types, such as antitank weapons. Longer-range surface-to-surface missiles, such as the Iraqi Scud, are in fact short-range ballistic missiles. Cruise missilescruise missile,
low-flying, continuously powered offensive missile designed to evade defense systems. Although the German V-1 (1944) was a simple cruise missile, the cruise missile did not realize its potential until the 1970s, when the United States sought to develop a
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, which are launched like a missile but use flipout wings and a turbofan engine to fly like an airplane to the target at altitudes of about 50 ft (15 m), are either air-to-surface or surface-to-surface missiles.

All long-range missiles are ballistic. The intermediate-range ballistic missile (IRBM) can reach targets up to 1,500 nautical miles away, while the intercontinental ballistic missile (ICBM) has a range of many thousands of miles. The first operational U.S. ICBM, the Atlas D, was controlled by radio, but since then inertial guidance, which uses internal gyroscopes to calculate and correct direction (sometimes with celestial, and then terrestrial readings), has been used. The key U.S. offensive ballistic missiles are the Minutemen ICBMs, which are launched from silos, and the submarine-launched Tridents, which replaced the earlier Polaris and Poseidon. All currently deployed ballistic missiles can be equipped with Multiple Independently Targetable Reentry Vehicles (MIRVs), which permit one booster to carry several warheads, each guided to a separate target. An antiballistic missile (ABM) is designed to detect and intercept enemy ballistic missiles. Space-, air-, sea-, and mobile land-based ABMs were barred by the 1972 ABM treaty, but the United States announced its withdrawal from that agreement in 2001.

The Soviet Union completed the first operative ICBMs in 1958, and the United States, reacting to a supposed "missile gap," gained overwhelming missile superiority by 1962, which in terms of accuracy and payload it never relinquished. Offensive and defensive ballistic missiles have been regulated by a number of arms control agreements between the United States and the USSR/Russia (see disarmament, nucleardisarmament, nuclear,
the reduction and limitation of the various nuclear weapons in the military forces of the world's nations. The atomic bombs dropped (1945) on Japan by the United States in World War II demonstrated the overwhelming destructive potential of nuclear weapons
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). Military ballistic missiles have been used as launchers for civilian space projects (see space explorationspace exploration,
the investigation of physical conditions in space and on stars, planets, and other celestial bodies through the use of artificial satellites (spacecraft that orbit the earth), space probes (spacecraft that pass through the solar system and that may or may not
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See L. Martin, The Changing Face of Nuclear Warfare (1987); D. Mackenzie, Inventing Accuracy (1990).

missile, guided:

see guided missileguided missile,
self-propelled, unmanned space or air vehicle carrying an explosive warhead. Its path can be adjusted during flight, either by automatic self-contained controls or remote human control. Guided missiles are powered either by rocket engines or by jet propulsion.
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guided missile

[′gīd·əd ¦mis·əl]
An uncrewed self-propelled vehicle, with or without a warhead, which is designed to move in a trajectory or flight path all or partially above the earth's surface and whose trajectory or course, while in flight, is capable of being directed by remote control, by homing systems, or by inertial or programmed guidance from within; excludes drones, torpedoes, and rockets and other vehicles whose trajectory or course cannot be controlled while in flight.
References in periodicals archive ?
It provides a remarkable historical background and some basic facts for a given guided missile but does not include exact ranges or specifications.
When a guided missile is launched by the enemy, it is not possible to destroy it through jamming systems, but it is only possible to redirect it in a way that the missile loses its precision targeting capability," Qolizadeh added.
The missile was launched from the USS Jouett, a guided missile cruiser equipped with the newest version of the Harpoon Ship Command and Launch Control System, which provides the capability to use all Block 1D features.
The US State Department has approved a $55 million contract for supply of 350 Javelin guided missile to Estonia, announced the US Defense Security Cooperation Agency (DSCA).
Early guided missiles like the Assault Drone - a radio-controlled aircraft with a camera mounted on the nose - have given way to weapons like the Tomahawk missile, which can follow the contours of the earth to specific targets more than 200 miles away.
During Phase I and Phase II of the DHS program, which began in January 2004, BAE Systems developed the JETEYE system designed to provide protection to commercial aircraft against the threat of infrared guided missiles.
Contract Awarded for the procurement of tube launched optically tracked wireless guided missiles
The lightweight, rugged designs will be ideally suited for existing and emerging precision guided missiles, munitions, and gun-launched projectiles," said Joel Houlton, Vice President and General Manager of Honeywell's Missiles and Munitions business unit.
Bharat Dynamics Ltd (BDL) declared that it has secured a contract worth INR 3,000 crore from the Ministry of Defence to deliver Invar Anti Tank Guided Missiles to Indian Army.
With a concentrated fire of guided missiles and artillery, the People's Liberation Army can bury an enemy intruder in a sea of fire," the newspaper said in unusually graphic language.
It complements weapons such as mortars, field artillery cannons, close air support, attack helicopters, guided missiles, and naval surface fire.
Bharat Dynamic Limited, Hyderabad (BDL), a Mini Ratna category company under Department of Defence Production signed a contract with Ministry of Defence for supplying Invar Anti Tank Guided Missiles to Indian Army here yesterday.

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