Tech Files Latest Products & Technologies MarineShaft Yanmar Hydrogen MarineShaft specializes in urgent re- Fuel Cell AIP pair/replacement of damaged rudder and Yanmar Power Technology Co., Ltd. propeller equipment along with many (Yanmar PT), a subsidiary of Yanmar on-site repair services. MarineShaft
HYBRID 2-stroke controllable pitch propeller PTO powertrain Source: MAN Energy Solutions how the system is intended to operate, says Oskar Levander, VP Strategy & Business Development, Kongsberg Maritime. For example, a primary shaft-driven PTO rotates whenever the engine is running; a secondary one
PTI/PTO 30 years ago shaft generators with PTI capability kept container ships sailing at top speed. That purpose gone, PTI/PTO is making a new comeback in more cargo shipping segments, this time for reducing emissions. By Wendy Laursen etro? tting a shaft generator is not an insigni? - the ef? ciency
EAL AND STERN TUBE DAMAGES STACKING not forget any oil leak, big or small, can be catastrophic to the marine environment and marine life, with some EALs found to THE DECKS be only slightly less damaging than the phased-out traditional WITH BEST-IN-CLASS MARINE oils,” said VP of Business Development
REPAIR Photo Courtesy Marine and Industrial Transmissions ings to optimize load distribution. A large number of the incidents analyzed by Gard were attributed to ghost ? shing gear that enter the stern tube seal area causing seawater to contaminate the lubrication oil. A 2022 study by CSIRO scientists
EAL AND STERN TUBE DAMAGES “Our recommendations “A good bearing are simple. Please design is have good control over important.” your oil quality in the primary barrier, the aft – Øystein Åsheim Alnes sealing system,” Head of section for Propulsion and Steering, – Arun Sethumadhavan DNV
down to a smaller size, and especially a smaller width relieves waterfront infrastructure footprints and costs. that issue. One may argue that one human with a bigger truck These 5-foot wide units will zip through the city much faster can deliver more cargo than one human with a smaller truck, and
Products In-Mar Solutions VETUS Maxwell 1 2 3 Volvo Penta 4 Cambridge Pixel fessional Platform, enables a vessel to Seakeeper 1. In-Mar Solutions: 5 have up to eight power sources, and Alu Pilot Chairs & Deck Rails In-Mar Solutions offers a complete includes matched software, services
Vessels HOS Warhorse & HOS Wild Horse shipyard construction contracts were wrongfully termi- nated. Gulf Island and Hornbeck settled in October 2023, clearing way for the builds to be completed by another yard. Eastern secured the contract to complete the builds from Zurich American Insurance Company
four of its 18 Ohio-class SSBNs and They can also operate without the wires, These weapons are launched over the side converted them to conventional cruise using their own active or passive sensors. of surface ships with the ubiquitous MK missile carriers. The ? rst four Ohio- They are programmed to
MEET THE CTO emission target. “We decided it’s better to have 3 vessels with dual For the largest ships in the CMB fuel than to have one zero-emission vessel [with ? eet, the focus is on ammonia, as it is no market]. [A zero-emission vessel is] often a cheapest from a production point of white elephant
MEET THE CTO has grown to 90 people across several something that is scalable.” fuels, resulting in an overall reduction world regions, and this technical talent Next the CMB.TECH team targeted of 65% of traditional fuel consump- base is central to Campe completing the Crew Transfer Vessel (CTV) used
“In keeping with that spirit, Arctic Storm challenged us with delivering an integrated package that would allow the crew to maximize catch ef? ciency – reducing both time on the water and vessel emissions – while working seamlessly within the ship’s Brett Johnson, Jess Woodruff, wider operation
into force in 1958, and only gave the IMO broad and, vague tion. But shipbuilders, oil companies, miners, chemical man- powers “to deal with” the regulation and practices “relating ufactures and others with huge ? nancial stakes in shipping, to technical matters of all kinds affecting shipping in inter-
EAGLE VELLORE EAGLE VELLORE AET delivered its newest vessel, the ? rst of three Very Large Crude Carrier (VLCC) powered by dual-fuel lique? ed natural gas Photo courtesy AET (LNG) engines, on long-term charter to Shell Tankers (Singapore) Private Limited. The Malaysian-? agged Eagle Vellore was
G REAT of BERLIN EXPRESS HIPS S 2023 Photo courtesy Hapag-LLoyd BERLIN EXPRESS SERI DAMAI Hapag-Lloyd welcomed Berlin Express into its ? eet, the MISC welcomed two of its latest new generation of Lique- ? rst ship of its new Hamburg Express class and the ? rst of a ? ed Natural Gas (LNG) carriers
3,200kW units) with a maximum naviga- of carrying all parts at once, including the tower, tion speed of 11 knots, or twice as fast as typical nacelle and blades for 7MW turbines or three barge-type SEPs pulled by tugboats. The ship is 12MW turbines, with the capability to – includ- also ? tted with dynamic
UNDERWATER NOISE ABB’s DynaFin propulsor will be designd to allow for the use of optimized ABB trajectories to reduce propeller noise. There are many technologies available to reduce URN, some of which may also reduce fuel consumption. However, Spence says it’s not just a case of picking out a
explains, ABB’s Global Product Line Manager, ABB Dyna? n, says the that’s an over-simpli? ed generalization mainly valid for con- system’s individual blade control allows ? exibility in blade stant rpm operation. FPPs can usually be built with more pro- trajectories to maximize propulsion ef? ciency
UNDERWATER NOISE he main thing holding the shipping industry back from reducing its underwater radiated noise (URN) is not a lack of appropriate technology. It’s argued that many of the technologies being REDUCING implemented today to reduce fuel consumption T also reduce noise. So, the noise reduction
Feature Great Vessels of 2023 All American Marine SHACKLEFORD Built to service the growing offshore wind market as allowing accurate and repeatable lever arm calculations to well as accomplish many other scienti? c survey missions, all survey sensors. Coordinate Uncertainty Analysis of the Shackleford
R.B. WEEKS Eastern Shipbuilding Group Florida shipbuilder Eastern Ship- rier islands and nourishing beaches an electrical power, propulsion, and building Group (ESG) this Spring de- lost to erosion, aiding the U.S. Army dredge machinery package by Royal livered R.B. Weeks, a 8,550 cubic yard Corps of
Feature Power & Propulsion not subject to speci? c IMO decarbonization measures such pair of Cat 3512E’s, each rated at 2,213 bhp, driving a Schot- as the Carbon Intensity Index, or CII), stressed that “due to tel SRP 430FP Z-drive unit. The same yard has two tugs un- signi? cant inherent differences in
In the Shipyard Latest Deliveries, Contracts and Designs Marcelle Melosira: Hybrid Research Vessel Derecktor Shipyards NY in Mamaroneck, N.Y. has deliv- tion with UVM and Chartwell, the 64-foot research catamaran ered a new hybrid research catamaran to the University of has been crafted to ful? ll the