Air Defense: Libyan Missiles Show Up In Gaza

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March 22, 2012: Israel has spotted some of the 480 Russian Igla-S (SA-24) shoulder fired anti-aircraft missiles that had been sold to Libya and stolen from military warehouses during the rebellion there last year. Some of these weapons have shown up in Gaza in the hands of Islamic terrorist group Hamas. Most Israeli and NATO helicopters and aircraft are equipped with missile detection and protection (lasers or flares) systems. Such systems on Israeli AH-64 helicopter gunships operating over Gaza have defeated several SA-24 attacks recently.

Last year Russia supplied Libyan missile serial numbers, which were distributed to counter-terrorism officials worldwide with the admonition to be vigilant. Apparently the SA-24 thieves sold many of the SA-24s to Iran, which in turn gave some to Hamas and Hezbollah (another Iran backed Islamic terror group in Lebanon).

One of the most dangerous Russian portable anti-aircraft missiles the SA-24 entered service eight years ago. The SA-24 is a post-Cold War upgrade of a design that was introduced at the same time as the American Stinger. Igla-S weighs 19 kg (42 pounds) and fires a 11.7 kg (26 pound) missile for up to 6,000 meters (19,000 feet). The 14.3 kg Stinger fires its 10.1 kg missile out to 8,000 meters, but both systems have similar resistance to countermeasures and a warhead of about the same size (2-3 kg/4.4-6.6 pounds). The Igla-S in the hands of terrorists could bring down helicopters and airliners taking off. The SA-24 is a heat seeker, but it does not just go for the engine exhaust but rather any part of the aircraft. This makes the SA-24 more dangerous because if they just go for the engine exhaust, these missiles often do little damage.

Against jet fighters or large transports with powerful engines the missiles that just home in on heat cause some damage to the tailpipe but usually fail to bring down the jet. This was first noted during the 1973, Arab-Israeli war where the Egyptians fired hundreds of SA-7s at Israeli A-4 light bombers. Most of the A-4s, with their 11,187 pounds of thrust engines, survived the encounter. Larger jets, like the F-4 and its 17,000 pound thrust engines, were even more difficult to bring down when only the engine exhaust was targeted. Smaller commercial jets, like the 737 or DC-9 (each using two 14,000 pounds of thrust engines) have proved vulnerable. But a 757 has much larger engines with 43,000 pounds of thrust and the 747 is 63,000. Moreover, the rear ends of jet engines are built to take a lot of punishment from all that hot exhaust spewing out. Put a bird into the front of the engine and you can do some real damage. But these older missiles homed in on heat and all of that is at the rear end of the engine. Since the 1970s about 40 commercial aircraft have been brought down by Russian portable anti-aircraft missiles (usually older SA-7s), killing over 500 people. But more recent designs go for any part of the aircraft, although engine heat is still used to find the aircraft.

 

 

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