Largest destroyer built for US headed to sea for tests

2015-12-07 21:30
USS Zumwalt. (AP)

USS Zumwalt. (AP)

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Bath - The largest destroyer built to date for the US Navy headed out to sea for the first time on Monday, departing from shipbuilder Bath Iron Works and carefully navigating the winding Kennebec River before reaching the open ocean where the ship will undergo sea trials.

More than 200 shipbuilders, sailors and residents gathered to watch as the futuristic 183m, 15 000 ton USS Zumwalt glided past Fort Popham, accompanied by tugboats.

Kelley Campana, a Bath Iron Works employee, said she had goose bumps and tears in her eyes.

"This is pretty exciting. It's a great day to be a shipbuilder and to be an American," she said. "It's the first in its class. There's never been anything like it. It looks like the future."

Bath Iron Works will be testing the ship's performance and making tweaks this winter. The goal is to deliver it to the Navy sometime next year.

The ship has electric propulsion, new radar and sonar, powerful missiles and guns, and a stealthy design to reduce its radar signature. Advanced automation will allow the warship to operate with a much smaller crew than current destroyers.

All of that innovation has led to construction delays and a growing price tag. The Zumwalt, the first of three ships in the class, will cost at least $4.4bn.

The ship looks like nothing ever built at Bath Iron Works.

The inverse bow juts forward to slice through the waves. Sharp angles deflect enemy radar signals. Radar and antennas are hidden in a composite deckhouse.

The builder sea trials will answer any questions of seaworthiness for a ship that utilises a type of hull associated with pre-dreadnought battleships from a century ago.

Critics say the "tumblehome" hull's sloping shape makes it less stable than conventional hulls, but it contributes to the ship's stealth and the Navy is confident in the design.

Eric Wertheim, author and editor of the US Naval Institute's Guide to Combat Fleets of the World, said there's no question the integration of so many new systems from the electric drive to the tumblehome hull carries some level of risk.

Operational concerns, growing costs and fleet make-up led the Navy to truncate the 32-ship programme to three ships, he said. With only three ships, the class of destroyers could become something of a technology demonstration project, he said.

Read more on:    us  |  marine

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