The largest waterjet so far in the Rolls-Royce Kamewa FF series has now been introduced. It extends the power range of these axial flow aluminium waterjets to 1,800 kW. “As a rough guide, a boat with a twin FF600 installation would have an all-up weight including equipment and fuel of about 60 tons for optimum performance,” said Tomas Renlund, director of the aluminium waterjet business. “But since we tailor the impeller to suit the application and can customise this type of jet to a considerable extent, each case should be considered individually.” In common with the other units at the smaller end of the Rolls-Royce waterjet range, the FF600 is constructed in aluminium, with the impeller, its housing, shafts and the operating cylinders for steering and reversing made of stainless steel. The inlet duct is fabricated from aluminium sheet to an optimised hydrodynamic profile and the mounting flanges are supplied in two versions; one for welding direct into an aluminium hull, the other for bolting into hulls made of other materials. Reverse and steering hydraulic cylinders are mounted inboard, and close attention has been paid to reducing risk to the environment.The actuating cylinders are anchored to a flange part way along the inlet duct next to the thrust bearing. This flange is designed so that it can be welded to, allowing the jet unit to be incorporated as part of an aft collision bulkhead structure.
Long discussed as the embodiment of next-generation marine technology, the Japanese "Techno-Superliner" (TSL) is now a reality. The 14,500 grt TSL will be built from aluminum and measure 460 x 98 ft. (140 x 29.8 m). To be built by Mitsui Engineering and Shipbuilding's Tamano works for delivery in 2005, the TSL will be propelled to a service speed of 38 knots via a pair of Rolls-Royce Kamewa VLW J235 waterjets, which will absorb 27 MW of power
Two pairs of Hamilton HM651 jets with 25-in. impellers are being installed on two 170 x 30 ft. (51.8 x 9.1 m) hulls being built for the Candy fleet at Swift Ships Morgan City shipyard. Powered by 12-cylinder Cummins KTA38-M2 engines rated for jet application at 1,350-hp at 1,900-rpm, the jets were introduced at last year's Workboat Show in December. Auxiliary power will be provided by two Cummins 6B5. 9GM-powered 50 Kw gensets. Cargo capacity on the vessel's 105 x 24 ft. (32 x 7
Boatswain’s Locker announced that they are now the Master Plus Distributor for Teleflex Marine/Sierra products. This level of distributorship means that Boatswain's Locker will be able to provide an extensive inventory of products including Teleflex Marine, Sierra, and Shields Hose at extremely competitive prices. Teleflex offers mechanical, hydraulic, and electronic controls as well as instruments. Sierra provides all types of engine related replacement parts such as alternators
BRP has been awarded a $10m contract from the United States Marine Corps (USMC) for its Evinrude multi-fuel engines (MFE). The Evinrude 55 MFE engines with an impeller equipped jet model pump will repower their fleet of F470 Zodiac boats / Combat Rubber Raiding Craft (CRRC) used during small craft operations. The strict procurement requirements of the USMC to secure non-gasoline burning outboard engines led directly to BRP
Safe guard your cooling system from costly damage with Livorsi’s Raw Water Flow System The Raw Water Flow system is a new patented system that indicates your engine’s water flow volume. This system warns you of a potential problem or danger that would otherwise not be indicated by a water pressure gauge alone, thus preventing cosmetic and structural damage to expensive exhaust headers, intercoolers and cooling systems. What is Water Flow?
After a slower year, the order book at All American Marine has rebounded. Together with charter and other boats, the firm has expanded their Ferndale, Wash. operations with a separate facility at South Bellingham. Currently under construction for March and April deliveries are four 32-ft. Bristol Bay style bow-pickers. One, for Greg Synner, will have a 12.5-ft. beam while two, for Al Agustus and Pat West will carry 14-ft. beams. The fourth boat, with a 13-ft
The U.S. Coast Guard issued a Safety Alert stating that a chemical tanker recently suffered a tank explosion in the Gulf of Mexico near Galveston. After stripping a tank, the tankerman opened the tank top cover and an explosion ensued, injuring the tankerman and damaging the vessel. While the investigation is ongoing, the cause appears to be that the bearings in the cargo pump failed, allowing the shaft and impeller to shift and spin against the casing
Ultra Dynamics has announced the release a new waterjet model the UltraJet UJ410 -- with a 410 mm diameter impeller – which fits neatly into the middle of its UltraJet range of waterjets, providing more options between the UJ376 and UJ451. All components on the new model are plug-and-play and mounted on jet, including the oil cooler, oil pump, sensors and valves, and hydraulic steering and reverse cylinders, keeping installation for the boat builder to a minimum.
The recent award from the Japanese Defense Agency for its two newest Coastal Mine Sweepers secures Omnithruster’s position as one of the leading designers and manufacturers of advanced, low noise, shock hardened thrusters. The Omnithruster JT575AM, designed from the ground up for the Japanese Defense Agency, incorporates the patented Omniphaser noise masking system. This device uses some of the thruster’s own output to reintroduce a water/air mixture into the thruster inlet
IHC Merwede unveils the IHC Beaver® 65 DDSP, a new IHC Beaver® series standard cutter suction dredger. The IHC Beaver® 65 DDSP, the successor to the highly successful IHC Beaver® 6518, is built for stock with short delivery times and designed and built under the BV Coastal Area
Following the launch of the IHC Beaver 65 DDSP in February, the first vessel has been sold to Advanced Construction Company, a member of the Al Geithy Group, based in Saudi Arabia. Testing was successful completed at IHC Merwede’s shipyard in Sliedrecht, The Netherlands
Colfax Fluid Handling, a business of Colfax Corporation and a global leader in fluid-handling solutions for critical applications, has introduced the Colfax Fluid Handling Smart Technology CM-1000 Series. The CM-1000 is an intelligent sea water cooling system controller designed to maximize
In a move that could change the way the maritime industry views propulsion technology, GE’s Power Conversion business increased its offshore systems portfolio with Inovelis, a podded thruster with unmatched fuel efficiency and overall performance.
Wärtsilä Corporation introduces a new compact, high-performance waterjet that is optimized for fast vessels. The new Wärtsilä LJX waterjet offers, in comparison with other waterjets available today, a 25 percent reduction in mounting flange diameter
John Deere Power Systems (JDPS) recently introduced its new 12.5L marine propulsion engine. The 6125SFM75 offers 610 hp (455 kW) and is the most powerful engine offered by John Deere. This new engine model is EPA Tier 2 emissions certified, meets EU emissions requirements and is IMO compliant
North American Marine Jet Inc. in Benton, AR has recently delivered the last two units of an 18 TRAKTOR JET-454HT (high thrust) unit contract to Yantai shipbuilder in China. The 14-meter steel hull is equipped with twin TJ-454HT (old name TJI-150) water jet units
Public Works and Government Services Canada (PWGSC) has awarded a multi-year contract for the manufacture and supply of propeller blades for the Canadian Patrol Frigates (CPF) to Dominis Engineering Ltd. of Ottawa. The contract calls for the supply of two ship-sets
All vessel owners and operators will agree that employee training and education is of prime importance when it comes to running a safe operation. A considerable amount of time, effort, expense and other resources are usually allotted to such programs
OCOR Corporation in San Diego, California has recently patented a submerged waterjet marine propulsion system that utilizes a helical lobe pump to displace water through a jet system. The ‘new twist’ refers to the helical geometry of the pump lobes on each of the counter-rotating rotors
HamiltonJet Technical Manager Phil Rae said the company’s designers learned a lot from the HT1000 project, using this knowledge to refine the HT810 to make it easier to both manufacture and service in the field. “Through the development of the HT series we have been able to
SAN DIEGO (NNS) -- USS Freedom (LCS 1) continued a scheduled, four-month milestone maintenance period July 28. Every new ship conducts a post-shakedown availability (PSA) which is designed to harness results of a thorough test and evaluation period and pave the way to operational employment by the
As a global market leader in dredging and mining vessels and equipment, and a reliable supplier of custom-built ships and supplies for offshore construction, IHC Merwede will be among the leading exhibitors at the Europort 2011 exhibition and CEDA Dredging Days technical forum in The Netherlands
Marine propulsion research & development company, Contrapel Ltd has released details of its new propulsion system for boats – the system set to make future boats more economical, manoeuvrable, safer, stronger and better for the environment.
On the occasion of SMM 2012, Caterpillar Marine launched new diesel, dual fuel and gas engines. The C175-16 from Caterpillar is the first Cat engine with core ACERT Technology, designed and built from the ground up, according to Robert Hallengren, Marine Products Director