ROK Navy FFX to use Rolls-Royce MT30s

By Keith Henderson at June 28, 2012 04:32
Filed Under: Company News, Navy insights, Navy News
Rolls-Royce is specified as gas turbine supplier for the Republic of Korea Navy’s new Incheon Class (FFX Batch II) frigate program, marking a first supply of the MT30 to an Asian Navy: The Incheon was built at HHI and is scheduled to be commissioned in summer 2013. Eight ships are planned for the FFX class and will be built at HHI and DSME. A further 18 ships are projected to enter service by 2020 to replace the Po Hang and Dong Hae classes. The frigate of 2,300 displacement has an LOA of 374 ft (114 m). The propulsion system is a two shaft CODAG arrangement with a single MT 30 gas turbine that delivers up to 36MW of power and diesel engines provide for lower power requirements. The maximum speed is 30 kn and cruising speed is 18 kn giving a range of approximately 4,500 nm. [More]

Polishing or Cleaning of Propellers

By Keith Henderson at April 24, 2012 00:55
Filed Under: Company News, General, Navy insights
The Hydrex Group April 2012 Journal of Ship Hull Performance includes a White Paper
called the 'Ship Propeller Maintenance: Polish or Clean. It explains how to save up 15
per cent of propulsion fuel costs without harm to the environment. A propeller is most
efficient when its surface is smooth, immersed in water, within hours it starts to loose its
smoothness and become rough. The rougher a propeller is allowed to become before it is
remedied, the more rapid further roughness occurs in an ever worsening spiral. In trials by the
US Navy after 226 days out of drydock the average fuel consumption required to maintain a given
speed had increased by 15.8 per cent. After cleaning the propellers (only), the fuel consumption
increase dropped to 5.5 per cent. Thus in seven months the propellers alone were responsible for
a 10 per cent increase in fuel consumption. The conclusion of the White Paper is that "a little and
often" is preferable to "seldom and severe" when it come to propeller cleaning. [More]

US Navy Unmanned Autonomous Patrol Boat Project

By George Backwell at April 14, 2012 23:30
Filed Under: Navy insights, Research & Development
Unmanned surface vessels took a step further toward becoming a reality when a U.S. Navy research and development programme attained its first objective –  to build and demonstrate a vessel on the assumption that no person steps aboard at any point in its operating cycle. The Textron Common Unmanned Surface Vessel (CUSV) vividly met this objective during the Navy’s 2011 ‘Sea Warrior’ experiment at Hampton Roads near the Norfolk Naval Base, clearing the way for subsequent Federal Government invitations to tender for work on the remaining objectives set out by the Defense Advanced Research Agency (DARPA) in its Anti-submarine Warfare Unmanned Vessel Continuos Trail (ACTUV) programme. A project aimed to develop an unmanned X-ship optimised to robustly track quiet diesel electric submarines. Patrol Boat – Unmanned & Autonomous: Photo courtesy of AA! Systems Fleet-Class Common Unmanned Surface Vessel by Textron Not only was the unmanned patrol boa... [More]

Navy to Demonstrate Biofuel Use During Exercise

By Edward Lundquist at December 06, 2011 10:08
Filed Under: Navy insights, Navy News
Navy to Demonstrate Biofuel Use During ExerciseBy Karen ParrishAmerican Forces Press Service WASHINGTON, Dec. 5, 2011 - The U.S. Navy will employ a biofuel blend to power aircraft and most vessels participating in a maritime exercise that's slated to be conducted near Hawaii next summer, senior officials told reporters today. Navy Secretary Ray Mabus and U.S. Department of Agriculture Secretary Tom Vilsack held a conference call with reporters this morning to discuss a contract the Defense Logistics Agency announced last week for 450,000 gallons of biofuel that will power a Navy carrier group during a maritime exercise next summer. The contract is the largest government purchase of biofuel in history, and provides $12 million to suppliers Solazyme and Dynamic Fuels LLC, a joint venture of Tyson Foods, Inc. and Syntroleum Corporation. Solazyme's biofuel is algae-based, Mabus explained, while Dynamic's is made from used cooking oil and non-food-grade animal fats. So-called drop-in f... [More]

Navy Secretary and USDA Secretary Announce Largest Government Purchase of Biofuel

By Edward Lundquist at December 05, 2011 14:16
Filed Under: Navy insights, Navy News
Navy Secretary and USDA Secretary Announce Largest Government Purchase of Biofuel From Secretary of the Navy Public Affairs WASHINGTON (NNS) -- Secretary of the Navy Ray Mabus and U.S. Department of Agriculture Secretary Tom Vilsack announced the Defense Logistics Agency (DLA) signed a contract to purchase 450,000 gallons of advanced drop-in biofuel, the single largest purchase of biofuel in government history, Dec. 5. While the Navy fleet alone uses more than 1.26 billion gallons of fuel each year, this biofuel purchase is significant because it accelerates the development and demonstration of a homegrown fuel source that can reduce America's, and the military's, dependence on foreign oil. The Defense Department will purchase biofuel made from a blend of non-food waste (used cooking oil) from the Louisiana-based Dynamic Fuels, LLC, a joint-venture of Tyson Foods, Inc., and Syntroleum Corporation, and algae, produced by Solazyme. The fuel will be used in the U.S. Navy's demonstrati... [More]

Russian Navy Refits Cold War Submarine – Orders French Assault Ships

By George Backwell at December 03, 2011 23:26
Filed Under: Navy insights, Navy News
Russia plans to have ten new nuclear powered attack submarines by year 2020, the first now delayed until the end of 2012; in the meantime the Navy has to make the best they can of it with an ageing fleet. A case in point –  the Russian nuclear submarine SSN Voronezh  (K-119) –  an Oscar ll class veteran ‘cold war’ warrior launched in 1988 came out of the Zvezdochka Ship Repair Centre last week after entering dock (no less than five years’ ago) for ‘emergency’ repairs to the main steam turbine engine and a change of uranium fuel in her two reactors. According to Russian Navy News Service the warship has now been repaired and refitted so that her service life with Russia’s Northern Fleet will be extended for another three years. One more cold war nuclear submarine veteran has already replaced Voronezh in the repair dock. Russian Nuclear Submarine SSN Voronezh: Photo courtesy of JSC Zvezdkochka Repair Centre Analysts consi... [More]

DDG 1000 Program Tests Integrated Power System

By Edward Lundquist at July 30, 2011 05:37
Filed Under: Industry Events, Navy insights
DDG 1000 Program Tests Integrated Power System By Joseph Battista, Naval Sea Systems Command Public Affairs PHILADELPHIA (NNS) -- The Chief of Naval Operations (CNO) observed live tests of the DDG 1000 Integrated Power System (IPS) at the Land Based Test Site at Naval Surface Warfare Center Carderock Division - Ship Systems Engineering Station (NSWCCD-SSES) July 22. DDG 1000 will be the first U.S. Navy surface combatant to use electric power for propulsion and ship services. An IPS generates the total ship electric power requirements, then distributes and converts it for all ship loads, including propulsion, combat systems and ship services. The first successful test of the IPS occurred May 11. CNO Adm. Gary Roughead received an overview of the DDG 1000 program from Capt. James Downey, DDG 1000 program manager from Program Executive Office (PEO) Ships, and a tour of the test site by Matthew Stauffer, NSWCCD-SSES DDG 1000 IPS LBTS program manager. "Providing the CNO an update on t... [More]

Engine manufacturer MTU is involved with many U.S. Navy and Coast Guard programs

By Edward Lundquist at April 26, 2011 13:44
Filed Under: Navy insights, Navy News
  Diesel engine manufacturer MTU has engines and systems that are a part of many U.S. Navy and Coast Guard programs.   US Navy Programs with MTU Engines:   82’ Mark V Special Operations Boat; Equipment: 2 x 12V396 Propulsion Diesel Engines w/marine gears and MCS-5 propulsion monitoring   Mark V.1 Special Operations Boat, ONR Demonstrator; Equipment: 2 x 16V 2000 M93 Propulsion Diesel Engines w/marine gears and Blue Vision Propulsion Monitoring   85’ Guardian Patrol Boat; Equipment: 2 x 12V4000 Propulsion Diesel Engines w/marine gears and DDEC Controls and Displays   262’ USS Sea Fighter, ONR Demonstrator; Equipment: CODOG Propulsion Plant with 2 x MTU 16V 595 Main Propulsion Diesel Engines and 2 x GE LM2500 Propulsion Gas Turbines; 4 x S60 Generator sets and MCS-5/RCS-5 Ship wide automation system   Joint High Speed Vessel (JHSV); Equipment: 4 x 20V 8000 M71L Main Propulsion Diesel Engines (9.1MW... [More]

High-speed ferries show the way for waterjet-warships

By Edward Lundquist at April 19, 2011 09:12
Filed Under: Navy insights, Navy insights, Navy insights, Navy insights
High-speed ferries show the way for waterjet-warships Second in a series of articles on waterjets in www.maritime propulsion.com   By Edward Lundquist       This 325-ft. Incat fast ferry under construction in Australia will be able to  achieve speeds of 50 knots.   It will be the world’s first high speed passenger Ro-Ro ship powered by LNG (Liquefied Natural Gas).    The use of waterjet-powered high-speed ferries is accelerating.   Several large ferries have reliably employed waterjets to provide high-speed operations, and correspondingly more revenue generating trips than the slower ferries they replaced.  Some of these ships are serving as prototypes for naval applications.   Australian shipbuilders Austal and Incat have both built high-speed catamarans that have been used as car and passenger ferries.    There are a number of fast ferries in service or building that employ waterjets.  T... [More]

Maritime Energy Pavilion will energize Sea-Air-Space Expo

The Office of Naval Research will be joined by numerous companies highlighting the latest technological advances in the fields of reduced energy consumption, alternative fuels and power systems at Sea-Air-Space Maritime Energy Pavilion. [More]

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