New High-power Waterjet Propulsors for Navy LCS

Press Release
Wednesday, February 06, 2013
The littoral combat ship Pre-Commissioning Unit (PCU) Fort Worth (LCS 3) conducts builders trials in Lake Michigan. (U.S. Navy photo courtesy of Lockheed Martin by Michael Rote/Released)

The Navy's fifth littoral combat ship (LCS), 'Milwaukee', the first to benefit from high-power density waterjets.

The product of an Office of Naval Research (ONR) Future Naval Capabilities (FNC) program, the waterjets arrived last month at the Marinette Marine shipyard in Wisconsin, where Milwaukee (LCS 5) is under construction.


Developed by Rolls-Royce Naval Marine in Walpole, Mass., in collaboration with ONR and Naval Surface Warfare Center, Carderock Division, the new Axial-Flow Waterjet Mk-1 can move nearly half a million gallons of seawater per minute, providing more thrust per unit than current commercial waterjets. Four of the new waterjets will propel the LCS to speeds greater than 40 knots.



Researchers believe the smaller, more efficient waterjets will help the LCS avoid excessive maintenance costs associated with cavitation - a phenomenon that occurs when changes in pressure create air bubbles on rotating machinery, such as marine propellers. Repeated occurrences can cause whole chunks of metal to wear away, leading to frequent repairs and replacements.


"We believe these waterjets are the future," said Dr. Ki-Han Kim, program manager in ONR's Ship Systems and Engineering Research Division. "Anything that we can do to keep ships ready to go will ultimately benefit our warfighters."



Chief of Naval Operations Adm. Jonathan Greenert's 2013-2017 Navigation Plan calls for fielding improved ships to support counterterrorism and irregular warfare missions at sea and ashore. The LCS will play a big role in the Navy's plan as a modular, adaptable vessel for use against diesel submarines, littoral mines and attacks by small surface craft.


Next up for the waterjets will be full-scale sea trials on Milwaukee (LCS 5), expected to occur in the next 24 months.



Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

Cavotec, ABB Partner on Shore-to-ship Power

Cavotec and ABB have signed a Memorandum of Understanding to jointly offer complete shore-to-ship power solutions globally. Such solutions allow vessels to plug

Fincantieri Orders Heat Power Systems for Cruise Newbuilds

Italian shipbuilding group Fincantieri has selected Climeon’s heat power system Climeon Ocean for its energy efficient solutions, purchasing six Climeon Ocean 450M

Langh Tech Scrubbers for Norwegian Cruise Line Newbuilds

Finnish manufacturer and supplier of scrubber solutions Langh Tech will deliver scrubber systems to two new cruise vessels on order at Meyer Werft in Papenburg for (NCL).

Shipbuilding

Englishman: 11th Humber Tug Bears the Name

Humber tugboat operator SMS Towage has drawn on an old name for the latest addition to its fleet. The new Englishman is the 11th Humber tug to bear the title, in

Fincantieri Orders Heat Power Systems for Cruise Newbuilds

Italian shipbuilding group Fincantieri has selected Climeon’s heat power system Climeon Ocean for its energy efficient solutions, purchasing six Climeon Ocean 450M

Langh Tech Scrubbers for Norwegian Cruise Line Newbuilds

Finnish manufacturer and supplier of scrubber solutions Langh Tech will deliver scrubber systems to two new cruise vessels on order at Meyer Werft in Papenburg for (NCL).

Navy

UK Navy Warship Escorts Queen Mary II

U.K. Royal Navy warship HMS Defender provided escort duties for transatlantic ocean liner RMS Queen Mary II through the Gulf of Oman. The Type 45 destroyer,

This Day In Naval History: April 28

1907 - A U.S. Marine Corps detachment from the patrol gunboat Paducah serves ashore at Laguna, Honduras, to protect Americans during a war between Honduras and Nicaragua.

Philippines: Coordinated Patrols Needed to Protect Shipping

The Philippines has been discussing coordinated naval patrols on its southern maritime borders with Indonesia and Malaysia to protect shipping after attacks and kidnappings by Islamist militants,

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0900 sec (11 req/sec)