Thursday, June 23, 2011

Two New Weapons Systems

Danger Room writes Genius Computer Stops Rockets Right Before Impact. "'Active protection is a testament to how fast computers are these days — especially when you’re not burdening them, by running an operating system,' says Artis CEO Keith Brendley. Artis’ approach is a little more algorithm-intensive than others. Rather than blast the projectile early in its flight, Artis’ Iron Curtain system waits to fire its countermeasure until the very, very last moment, when the munition is just a few inches away from ramming into its target. Iron Curtain doesn’t shoot out at the projectile. Mounted on the vehicle’s roof, it shoots straight down. The idea is to minimize the harm to any civilians nearby — and to get as good a look at the incoming munition as possible before firing"

Builder Blames Navy as Brand-New Warship Disintegrates. "The afflicted vessel is USS Independence, the second in the sailing branch’s fleet of fast, reconfigurable Littoral Combat Ships. Eventually, these ships are supposed to be the workhorses” of tomorrow’s Navy."

"In contrast to the first LCS, the steel-hulled USS Freedom, Independence is made mostly of aluminum. And that’s one root of the ship’s ailment. Corrosion is a $23-billion-a-year problem in the equipment-heavy U.S. military. But Independence’s decay isn’t a case of mere oxidation, which can usually be prevented by careful maintenance and cleaning. No, the 418-foot-long warship is dissolving due to one whopper of a design flaw. There are technical terms for this kind of disintegration. Austal USA, Independence’s Alabama-based builder, calls it “galvanic corrosion.” Civilian scientists know it as “electrolysis.” It’s what occurs when “two dissimilar metals, after being in electrical contact with one another, corrode at different rates,” Austal explained in a statement."

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