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US Navy prepares to deploy first ever ship-mounted laser

BATH, Maine--Some of the Navy's futuristic weapons sound like something out of “Star Wars,” with lasers designed to shoot down aerial drones and electric guns that fire projectiles at hypersonic speeds.

That future is now.

The Navy plans to deploy its first laser on a ship later this year, and it intends to test an electromagnetic rail gun prototype aboard a vessel within two years.

For the Navy, it's not so much about the whiz-bang technology as it is about the economics of such armaments. Both costs pennies on the dollar compared with missiles and smart bombs, and the weapons can be fired continuously, unlike missiles and bombs, which eventually run out.

“It fundamentally changes the way we fight,” said Capt. Mike Ziv, program manager for directed energy and electric weapon systems for the Naval Sea Systems Command.

The Navy's laser technology has evolved to the point that a prototype to be deployed aboard the USS Ponce this summer can be operated by a single sailor, he said.

The solid-state Laser Weapon System is designed to target what the Navy describes as “asymmetrical threats.” Those include aerial drones, speed boats and swarm boats, all potential threats to warships in the Persian Gulf, where the Ponce, a floating staging base, is set to be deployed.

Rail guns, which have been tested on land in Virginia, fire a projectile at six or seven times the speed of sound — enough velocity to cause severe damage. The Navy sees them as replacing or supplementing old-school guns, firing lethal projectiles from long distances.

But both systems have shortcomings.

Lasers tend to loser their effectiveness if it's raining, if it's dusty, or if there's turbulence in the atmosphere, and the rail gun requires vast amount of electricity to launch the projectile, said Loren Thompson, defense analyst at the Lexington Institute.

“The Navy says it's found ways to deal with use of lasers in bad weather, but there's little doubt that the range of the weapon would be reduced by clouds, dust or precipitation,” he said.

Producing enough energy for a rail gun is another problem.

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In this July 30, 2012 photo provided by the U.S. Navy, a laser weapon sits temporarily installed aboard the guided-missile destroyer USS Dewey in San Diego, California.

(AP)

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