Printer Friendly
The Free Library
22,695,004 articles and books

Underwater killers: Navy's mine-hunting technologies wait for the Littoral Combat Ship.

THE NAVY HAS A NEW SUITE of anti-mine technologies designed to roll on and off a ship as needed as needed prn. See prn order. . It just doesn't have the ship yet.

In September, the service unveiled a transportable "mine warfare The strategic, operational, and tactical use of mines and mine countermeasures. Mine warfare is divided into two basic subdivisions: the laying of mines to degrade the enemy's capabilities to wage land, air, and maritime warfare; and the countering of enemy-laid mines to permit friendly  mission package" that will one day replace current minesweeping boats, which are scheduled for retirement in 2016.

The new mission package is slated to go aboard the littoral combat ship The Littoral Combat Ship is the first of the U.S. Navy's next-generation surface combatants. Intended as a relatively small surface vessel for operations in the littoral region (close to shore), the LCS is smaller than the Navy's guided missile frigates, and have been compared to . But it is not yet clear when exactly the LCS LCS - Language for Communicating Systems  will enter service. The program so far has been beset by cost overruns and schedule delays.

The Navy's ability to deploy the new mine warfare technology is tied to the fate of the LCS. The ship's current troubles, Navy officials insist, will not leave the fleet ill-prepared to tackle mine-sweeping missions in the future.

The possibility that LCS may not be ready by the time the minesweeping ships are decommissioned in 2016 is not currently being considered in future planning, said Gary Humes, the Navy's mine warfare program manager.

He said he is confident that LCS vessels will be in the fleet before 2016 or 2017. "The timeline right now for mine countermeasure decommissioning Decommissioning is a general term for a formal process to remove something from operational status. Some specific instances include:
  • Ship decommissioning
See also:
 and the ramp-up of LCS marries quite well," Humes said in an interview.

Yet the LCS program schedule stands on shaky ground Shaky Ground was a TV sitcom which starred Matt Frewer as Bob Moody, a hapless, but supportive and caring father. Robin Riker played his wife and Jennifer Love Hewitt as his daughter. The show aired on FOX for the 1992-1993 season. . Original plans called for 55 of these new ships to be operational in 2013. But the Navy is now struggling to keep the program afloat, following a decision to cancel one of the two prototypes that were to be built by Lockheed Martin For the former company, see .

Lockheed Martin (NYSE: LMT) is a leading multinational aerospace manufacturer and advanced technology company formed in 1995 by the merger of Lockheed Corporation with Martin Marietta.
. A competing design is being built by General Dynamics General Dynamics Corporation (NYSE: GD) is a defense conglomerate formed by mergers and divestitures, and as of 2006 it is the sixth largest defense contractor in the world[1]. The company has changed markedly in the post-Cold War era of defense consolidation. . Analysts project that the LCS will fall further behind in the next two years.

[ILLUSTRATION OMITTED]

The mine warfare package was delivered as scheduled in September. It includes a suite of sensors, weapons and unmanned systems--bundled in a rectangular container that is sized to fit only on LCS. It is one of three different mission packages that the Navy wants to deploy aboard the ship. The service plans to buy up to 24 mine warfare systems, which are designed to locate and destroy sea mines floating in deep water or planted in shallow water See:
  • Shallow water blackout
  • Waves and shallow water
  • Shallow water equations
  • Shallow Water, Kansas
 and surf zones.

"All we're waiting for is a sea frame," Humes said.

One of the components of the mine warfare package--the remote mine-hunting system--was installed on the USS Bainbridge (DDG-96) destroyer in August.

The ship crew has no specific plans to test the RMS, but may conduct impromptu exercises if time allows, Humes said.

The Navy does not intend to buy anti-mine systems for the DDG DDG Guided Missile Destroyer
DDG Deutsche Diabetes Gesellschaft
DDG Deputy Director General
DDG Drop Dead Gorgeous
DDG Deutsche Dermatologische Gesellschaft (German Society of Dermatologists) 
 class, he says, but since LCS is not ready, the technology was put on Bainbridge to "keep the crew proficient in the operations and maintenance of the system."

While the whole mine warfare mission package cannot be installed aboard a destroyer, separate components can be tested, said Humes. The remote mine-hunting system is the only piece that is capable of going on DDG destroyers.

The airborne components of the mine warfare package are being tested, Humes said. They operate from a MH-60S mine-hunting helicopter.

Officials said that the completion of the mission package marks a notable advance for the Navy's mine warfare program, which for nearly a decade has struggled to produce deployable technologies.

Each LCS mission package will cost $68 million, according to Navy estimates.

The service decided in the early 1990s to give up its dedicated minesweeper minesweeper

Naval vessel used to clear submarine mines from an expanse of water. In naval warfare, they are used to clear mines from sea-lanes to protect merchant shipping as well as to clear paths for warships to engage in battle or amphibious warfare.
 ships and transition to "organic" anti-mine systems that could be deployed aboard destroyers as part of carrier battle groups. Budget cuts and technology hurdles slowed the program in recent years.

The remote mine-hunting system was one of the troubled technologies, and eventually was redesigned by the manufacturer, Lockheed Martin Corp.

In 2004, the Navy decided to rethink its whole mine warfare concept of operations A verbal or graphic statement, in broad outline, of a commander's assumptions or intent in regard to an operation or series of operations. The concept of operations frequently is embodied in campaign plans and operation plans; in the latter case, particularly when the plans cover a series . Under the revised plan, the anti-mine systems would be moved to LCS small combat vessels.

The LCS is better suited for mine-clearing operations because it is designed for coastal warfare, Navy officials contend. Future enemies are more likely to mine the waters near the coast to prevent U.S. forces from landing ashore.

Development of organic mine-hunting technology solved two problems for the Navy: Getting the sailor out of the minefield and reducing the time it takes to find and clear mines, said Humes.

These systems allow sailors to conduct mine reconnaissance from safe distances, says Brad Hines, director of business development at Lockheed Martin.

The remote mine-hunting system is composed of five parts, one of which is an unmanned submersible submersible, small, mobile undersea research vessel capable of functioning in the ocean depths. Development of a great variety of submersibles during the later 1950s and 1960s came about as a result of improved technology and in response to a demonstrated need for  that transmits images to its host ship over a data link, Hines explains

The airborne component of the new mine warfare mission package allows operators to stay a safe distance from a mine as it's being neutralized, says James Normington, program manager at the Raytheon Company, which makes the helicopter-based sensors. "Mine warfare used to be more primitive," he explains. "Soldiers would be looking in the water, holding a machine gun." The mine warfare package includes two different technologies for neutralizing a mine by operators inside the MH-60S helicopter. They are the rapid airborne mine clearance system and the airborne mine neutralization neutralization, chemical reaction, according to the Arrhenius theory of acids and bases, in which a water solution of acid is mixed with a water solution of base to form a salt and water; this reaction is complete only if the resulting solution has neither acidic nor  system.

AMNS AMNS Airborne Mine Neutralization System
AMNS Adapted Modular Number System
AMNS Aircraft Mounted Nozzle Sidewall
 is used for targets in deep water. It is carried on the mine hunting helicopter and is deployed in a small, unmanned underwater vehicle. The UUV UUV Unmanned Underwater Vehicle
UUV Unmanned Undersea Vehicle
UUV Unauthorized Use of a Vehicle
UUV Unsolicited Update-Vote
UUV Ultimate Utility Vehicle
 locates the mine using the AQS-20A sonar. Information transmitted from the sonar is then used to deploy AMNS to a specific location and destroy the mine. A camera is also affixed af·fix  
tr.v. af·fixed, af·fix·ing, af·fix·es
1. To secure to something; attach: affix a label to a package.

2.
 to the front of the vehicle so an operator can search. When the operator flips a switch, explosives are fired into the mine, Humes said. Surface mines are shattered with a 30mm Bushmaster bushmaster, large venomous snake, Lachesis muta, of Central America and N South America. It is a member of the pit viper family, which also includes the rattlesnake. The largest New World snake, it reaches a length of 8 to 12 ft (2.5–5.5 m).  gun mounted on the helicopter.

Sonar can find mines in what the Navy calls "deep water"--classified as 30 to 40 feet under the surface. The AQS-20A system comprises five sonars that look at the ocean floor.

Raytheon is under contract to build 11 sonar systems, and has delivered 10 so far. Changes have been made to reduce the cost.

These technologies have also significantly reduced the timeline between detection and destruction, said Humes.

But the Navy can do better, he added. "That's where the effort needs to continue. I believe, over the next 10 to 15 years, we will be continually working to reduce that timeline even more."

When mines on the bottom of the ocean floor can't be detected by using sonar or laser, the Navy uses a technique called mine sweeping.

"Mine sweeping is a technique of simply creating a magnetic or acoustic source in the water to trick the mine into thinking that [sound] is a surface ship or submarine," Humes said. It addresses the problem of detecting mines where ocean floors are rocky or cluttered with other objects.

The organic airborne and surface influence sweep system, or OASIS, is towed from a helicopter and creates a magnetic field in the water, as well as generating acoustic noise, he says.

Additionally, operators may use an unmanned surface vehicle The term unmanned surface vehicle (USV) refers to any vehicle that operates on the surface of the water without a crew. USVs have been tested since World War II but have been largely overshadowed.  to sweep areas in ways that OASIS can't, Humes says. OASIS can't operate in darkness and has coverage limitations because it's towed by the MH-60S, which has a small fuel tank. The unmanned vehicle, on the other hand, can operate at night and can cover a much larger area.

These technologies, said Humes, are "much more sophisticated than a lot of the systems we've developed in the past." They require advanced software and computer processors.

Navy engineers will have to worry about obsolescence ob·so·les·cent  
adj.
1. Being in the process of passing out of use or usefulness; becoming obsolete.

2. Biology Gradually disappearing; imperfectly or only slightly developed.
 as technology quickly evolves. That will require more research and development, Humes said. Future R&D plans will need to address processing, communication between remote systems and host ships, as well as changes in unmanned vehicle technology.

Research funding has declined over the years, Humes said, but only because most of the new systems are completely developed. The Navy currently spends about $100 million a year on research and development of mine warfare technology.

Email your comments to BWagner@ndia.org
COPYRIGHT 2007 National Defense Industrial Association
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2007, Gale Group. All rights reserved.

 Reader Opinion

Title:

Comment:



 

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:FUTURE NAVY
Comment:Underwater killers: Navy's mine-hunting technologies wait for the Littoral Combat Ship.(FUTURE NAVY)
Author:Wagner, Breanne
Publication:National Defense
Date:Nov 1, 2007
Words:1328
Previous Article:Fast steel on target? Electric guns on Navy ships: not yet on the horizon.
Next Article:Powering the fleet: all-electric ship could begin to take shape by 2012.
Topics:



Related Articles
Navy's high-speed vessel aids relief effort.
Department of defense news release (May 27, 2004): Navy Flight 0 Littoral Combat Ship contract option awards announced.
Navy newsstand (April 27, 2006): Navy to base first four Littoral Combat Ships in San Diego.
Friendly navies sought for unwanted U.S. ships.
Underwater: mines, improvided explosives. a threat to global commerce?
Stormbound: Littoral combat ship could slip behind schedule as price tag nears $500 million.
Littoral combat ship troubles: opportunity for small boat companies.
Department of Defense News Release (March 15, 2007): Secretary of the Navy recommends way ahead for Littoral Combat Ship program.

Terms of use | Copyright © 2014 Farlex, Inc. | Feedback | For webmasters