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 Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

Schmiedag and Wildauer Schmiedewerke: 'We Forge Partnerships'

Olaf Wiertz, Sales Director at Schmiedag GmbH (SDG) and Wildauer Schmiedewerke GmbH & Co. KG (WSW) said: “We are more than just a supplier to our customers – we are their partner.

Lack of Ship Definition is a Threat to Investors

AKD says the lack of an unambiguous term to describe a ‘ship’ in several jurisdictions represents a potential threat to asset security for financiers, particularly

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Shipbuilding

Schmiedag and Wildauer Schmiedewerke: 'We Forge Partnerships'

Olaf Wiertz, Sales Director at Schmiedag GmbH (SDG) and Wildauer Schmiedewerke GmbH & Co. KG (WSW) said: “We are more than just a supplier to our customers – we are their partner.

Turkey Maritime Sector Alive & Kicking

Located on the periphery of two great continents, Turkey has benefitted from being in a favored position right at the center of an assertive and fast growing economic area.

3D Machining Puts Wind in the Sails

With ESPRIT CAM software, Armor Mécanique has the wind in its sails; 50% time savings, better quality and new markets thanks to 3D machining Established in 1984

Navy

Indonesia Partners with China on Maritime

Indonesian President Joko “Jokowi” Widodo and Chinese President Xi Jinping pledged increased maritime cooperation during the formers visit to China.   The joint

China Strengthens Maritime Ties with Pak

The Vice Chairman of China's Central Military Commission General Fan Changlong has pledged to deepen maritime security and military technology cooperation during

17 Countries for Maritime Security Training in Indonesia

Representatives from 17 countries would take part in the sixth Maritime Security Desktop Exercise that is scheduled to be held in Yogyakarta, Indonesia from March 30 to April 1.

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Pipelines Pod Propulsion Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1440 sec (7 req/sec)