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FLOATING STEEL
DRS to provide power distribution systems for Zumwalt-class destroyer
by Stephen Carlson
Washington (UPI) Sep 1, 2017


Rolls-Royce receives $27.3M contract for Zumwalt power plants
Washington (UPI) Aug 11, 2017 - Rolls-Royce Marine North America is receiving a $27.3 million contract for parts and engineering services on power plants for DDG 1000 Zumwalt destroyers.

The contract provides for item orders, mounting equipment and other services for DDG 1000 gas-turbine generators. The generators are the destroyer's main source of electric power.

The work will be conducted in Indianapolis, Ind., and Walpole, Mass., with a projected completion date of September 2022, with $1 million in 2017 Navy shipbuilding and conversion funds obligated already.

The DDG 1000 Zumwalt-class destroyer is a stealth surface combatant under development by the U.S. Navy, with three ships built. It has a composite superstructure designed to make it difficult to detect by radar and sonar and a fully electric drive.

The vessels mount two Advanced Gun Systems that were originally designed to use the Long Range Land Attack Projectile with a range of over 60 miles. The high price tag of the ammunition has led the Navy to consider using the Raytheon Excalibur 155mm GPS-guided round instead, which would require extensive modifications to the AGS.

It also has the Advanced Vertical Launch System for Tomahawk cruise missiles and Standard series surface-to-air missiles as well as two Mk 46 30mm Gun Weapons Systems for point defense against high-speed surface targets.

It's power plants are designed for future weapons systems like electromagnetic railguns and lasers, which would require huge amounts of electricity to operate.

The Zumwalt-class has faced a number of development delays and cost overruns and the Navy has decided to limit its production to the current three vessels. The vessels are expected to begin active deployment by 2021.

The U.S. Navy is issuing a $32.2 million contract to DRS Systems Inc. for the electric power distribution network of the Zumwalt-class destroyer.

The work will go towards generators and power distribution nodes and is expected to be completed by September 2022.

The DDG 1000 Zumwalt-class destroyer is a surface warfare stealth ship still under development by the U.S. Navy. It has a composite superstructure designed to make it difficult to detect by radar and a fully electric drive system to reduce its noise emissions and make it less detectable by enemy sonar.

Its power plants are designed for installation of future weapons systems like electromagnetic railguns, lasers and advanced radars which would require very large amounts of electricity to operate. High-power generation capabilities on a non-nuclear powered ship is a key objective of the Zumwalt program.

The Zumwalt mounts two Advanced Gun Systems designed primarily for shore bombardment. The long-range gun was originally designed to use the Long Range Land Attack Projectile with a maximum range of over 60 miles.

The high cost of the LRAP ammunition has left the Navy looking for alternatives. Under consideration is the already deployed Excalibur GPS-guided 155mm round which would require extensive modifications to the AGS and has a much smaller range.

The Zumwalt-class mounts the Advanced Vertical Launch System for Tomahawk cruise missiles and Standard series surface-to-air missiles as well as two Mk46 30mm Gun Weapons Systems for point defense against small surface targets like speed boats and unmanned boats.

The Zumwalt-class has faced a number of development delays and cost overruns, with each ship costing over $7.5 billion and the Navy has decided limit its production to the current three vessels. The first in the class USS Zumwalt is expected to begin active service by 2021.

FLOATING STEEL
NRL-developed Topcoat Applied on Entire Freeboard of Navy Ship
Washington DC (SPX) Jul 18, 2017
Recently, a novel coating developed by researchers at the U.S. Naval Research Laboratory (NRL) for the exterior topsides of Navy surface ships went beyond small area testing to covering the entire freeboard of an amphibious assault ship. Until April of 2017, NRL's single-component (1K) polysiloxane coating had only been tested on 400-800 sq.ft. areas of ships due to limited production quantities ... read more

Related Links
Naval Warfare in the 21st Century


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