صاروخ سطح-جو

An artist's depiction of a Soviet surface-to-air missile system engaging two F-16 Fighting Falcons

الصاروخ سطح-جو (surface-to-air missile ؛ SAM)، أو صاروخ أرض-جو (ground-to-air missile ؛ GTAM /ɪˈtæm/)، هو صاروخ مصمم للإطلاق من الأرض لتدمير طائرة أو صاروخ آخر. وهو أحد أنواع antiaircraft system; in modern armed forces, missiles have replaced most other forms of dedicated antiaircraft weapons, with anti-aircraft guns pushed into specialized roles.

The first serious attempts at SAM development took place during World War II, although no operational systems were introduced. Further development in the 1940s and 1950s led to the first 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 that have pushed gun-based systems into the shortest-range roles.

The American Nike Ajax was the first operational guided missile SAM system, and the Soviet Union's S-75 Dvina was the most-produced SAM. Widely used modern examples include the Patriot and S-300 wide-area systems, SM-6 naval missiles, and short-range man-portable systems like the Stinger and Strela-3.


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معلومات عامة

Surface-to-air missiles are classified by their guidance, mobility, altitude and range.


القدرة على الحركة والمناورة والمدى

Long-range SAMs like the RIM-161 are an important part of modern naval forces

Missiles able to fly longer distances are generally heavier, and therefore less mobile. This leads to three "natural" classes of SAM systems; heavy long-range systems that are fixed or semi-mobile, medium-range vehicle-mounted systems that can fire on the move, and short-range man-portable air-defense systems (MANPADS).

The David's Sling Stunner missile is designed for super-maneuverability. A three-pulse motor activates only during the kill-stage, providing additional acceleration and maneuverability.[1]


أنظمة التوجيه

Israel's Arrow 3 missiles use a gimbaled seeker for hemispheric coverage. By measuring the seeker's line-of-sight propagation relative to the vehicle's motion, they use proportional navigation to divert their course and line up exactly with the target's flight path.[2]

SAM systems generally fall into two broad groups based on their guidance systems, those using radar and those using some other means.

الحصول على الأهداف

A JASDF soldier uses the optical sight on the Type 91 Kai MANPAD to acquire a mock airborne target. The prominent vertical metal devices on the left are the IFF antennas.
A U.S. Marine antiaircraft gunner aims his Stinger at a location indicated by a spotter.

Long-range systems generally use radar systems for target detection, and depending on the generation of system, may "hand off" to a separate tracking radar for attack. Short range systems are more likely to be entirely visual for detection.


انظر أيضاً

الهامش

ملاحظات
الهامش
  1. ^ "Missile-Killing Interceptors Eyed By Israel, US", Aviation Week's DTI, David A. Fulghum, 23 September 2010
  2. ^ Eshel, David (2010-02-12). "Israel upgrades its antimissile plans". Aviation Week & Space Technology. Retrieved 2010-02-13.
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