...the Airborne Laser isn't mean to win beauty contests. It's being to blast ballistic missiles -- using a chemically-powered, megawatt-class laser -- as they're first climbing into the sky. That's when missiles are slowest and most vulnerable.
This is called boost-phase intercept. Mid-course intercept is up to the Navy's SM-3 missile and the Ground-Based Interceptors based in California and Alaska. Terminal interception -- right before the suckers hit -- is left to Army Patriot missiles, Navy SM-2s and the Army's forthcoming Terminal High-Altitude Air Defense missile, or THAAD. It takes defenses in all three phases to make a fully-functioning missile shield.
The boost-phase intercept is the hardest. There's just a short window before a missile accelerates, noses over, deploys decoys and gets a lot harder to kill. Some folks in the military think the job is so difficult, we shouldn't even bother, going with "pre-boost phase" defense instead -- blowing up the missiles before they ever get off the launching pad, with lightning-quick attacks. But with three Airborne Laser jets, you could maintain a 24-hour orbit near a launch area and zap the missiles mere seconds after launch. Theoretically.
Problem is, the 747's chemical laser and delicate sensors don't quite work yet, despite about a zillion tests, and planning going back the Reagan Administration. The first was supposed to enter service in 2002, then 2005. Now, the target date has been pushed back at least until 2009, and further production is on hold. Obering says he hasn't lost hope -- yet. "Airborne Laser, if it pans out, is very capable," he said at the Surface Navy Symposium, held yesterday in Crystal City near Washington, D.C. "[It is] our primary boost-phase program -- but it's a high-risk program. If it doesn't pan out, we [still] need a boost-phase capability."
It'll knock down a missile and punch through steel plating, but you have to have a 747 full of hardware and powerplant to fire it.
There might be better ways to do this. Just a suggestion. I'm sure the Chinese- and the British- have already figured it out.
Many of the links to the 2005 story have been removed, but a news release at the time is here.
The Federation of American Scientists has more links on this story here.
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