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How Israel’s ‘Iron Dome’ Knocks Almost Every Incoming Missile Out Of The Sky

 
Anonymous Coward
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11/20/2012 12:48 PM
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How Israel’s ‘Iron Dome’ Knocks Almost Every Incoming Missile Out Of The Sky
[link to www.popsci.com]


It’s tough to hit a moving rocket with a moving rocket. Here’s how Israel’s new domestic missile defense system is doing it with unprecedented accuracy.

As missile defense goes, these success rates are more or less unprecedented. One of the five Iron Dome batteries deployed to southern Israel reportedly intercepted a full 100 percent of incoming rockets fired during one Hamas salvo. The overall success rate has been described by various officials at anywhere between 75 and 95 percent. Calling it a conservative 85 percent success rate still puts Iron Dome in a class by itself where missile defense systems are concerned. Hitting a screaming rocket with a screaming rocket is, after all, really, really difficult.

When many people think of missile interceptors, they think of the American-made MIM-104 Patriot missile interceptor system and its much-heralded successes during the 1991 Gulf War, during which then-President George H. W. Bush called the Patriot missile interceptor overwhelmingly successful, using numbers that described it as something like 97 percent effective. But we’ve since learned that those success rates were really much lower--mostly after changing the parameters of what defines a success (later analysis showed that the Iraqi Scuds that the Patriots were “intercepting” were simply failing in flight far more often than the Patriots were destroying them). The dubious success of the Patriot system has since served as a lingering reminder--in-flight missile-defense is a challenge that even the most technologically advanced military in the world hasn’t been able to overcome.
So how is Israel pulling it off with such unmitigated success? Intercepting Soviet-designed Scuds and the much smaller Grad and Qassam rockets largely fielded by Hamas are in some ways very different, but the primary problem is fairly universal. Any ballistic missile interceptor system needs to meet at minimum three requirements: it must have a way to detect and track an incoming projectile, it must be able to use that tracking data to predict the future course of that projectile, and it must be able to accurately be able to get in the way of that projectile. In Israel’s case there’s a further requirement. Because most of Hamas’ arsenal has a range of just two to 20 miles, it has to do all of this very, very quickly.

Iron Dome satisfies all three of these requirements remarkably well. It starts with radar stations that detect a missile or artillery shell moving toward Israeli airspace. Trajectory data on the missile are beamed to a battle control system, which quickly assembles a ballistic profile of the missle--where it is now, how fast it is moving, and where it is going to be. The system and its overseers then make a decision; Is this projectile a threat to a populated area, or is it destined for a rural field or some place where people are not likely to be harmed. Roughly two-thirds of the rockets fired thus far from Gaza have fallen into the latter category, and Iron Dome lets those rockets fall harmlessly.
Anonymous Coward
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11/20/2012 12:51 PM
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Re: How Israel’s ‘Iron Dome’ Knocks Almost Every Incoming Missile Out Of The Sky
This article failed to mention who paid for this the american tax payers.
Anonymous Coward
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11/20/2012 12:58 PM
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Re: How Israel’s ‘Iron Dome’ Knocks Almost Every Incoming Missile Out Of The Sky
Making the Russian ICBM launched over Israel a powerful statement. Russia can evade the Iron Dome System.
Anonymous Coward
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11/20/2012 01:45 PM
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Re: How Israel’s ‘Iron Dome’ Knocks Almost Every Incoming Missile Out Of The Sky
bsflagbsflagbsflagbsflag

Iron Dumbass might get 3 out of 50 missles. The stupid american taxpayers got the shaft again.

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