Future USS Zumwalt heads to sea trials

Posted at 2:53 PM, Dec 07, 2015
and last updated 2015-12-07 14:53:10-05

The future USS Zumwalt (DDG 1000) headed down the Kennebec River in Maine Monday to conduct at-sea tests and trials for the first time.

At 610 feet long and 81 feet wide, the first of the DDG-1000 class of destroyers is longer and thinner than the battleship USS Arizona sunk at Pearl Harbor. However it weighs about half as much.

The canopy and the rest of the ship is built on angles that help make it 50 times harder to spot on radar than an ordinary destroyer.

The Zumwalt is the first U.S. Navy surface combatant to employ an innovative and highly survivable Integrated Power System (IPS). Key design features that make the DDG 1000 IPS architecture unique include the ability to provide power to propulsion, ship’s service, and combat system loads from the same gas turbine prime movers. DDG 1000’s power allocation flexibility allows for potentially significant energy savings and is well-suited to enable future high energy weapons and sensors.

The wave-piercing Tumblehome ship design has provided a wide array of advancements. The composite superstructure significantly reduces cross section and acoustic output making the ship harder to detect by enemies at sea. The design also allows for optimal manning with a standard crew size of 158 sailors (including air det) thereby decreasing lifecycle operations and support costs.

DDG 1000 will employ active and passive sensors and a Multi-Function Radar (MFR) capable of conducting area air surveillance, including over-land, throughout the extremely difficult and cluttered sea-land interface.

Each ship features a battery of two Advanced Gun Systems (AGS) firing Long-Range Land Attack Projectiles (LRLAP) that reach up to 63 nautical miles, providing a three-fold range improvement in naval surface fires coverage.

The Navy had planned to spend up to $9 billion in research and development on the DDG-1000 program and up to $20 billion to design and deliver seven ships. But cost overruns cut production to three ships.

When it begins missions, the Zumwalt will be the largest stealthy ship in the Navy.