Photo courtesy Global Ocean Design Figure 7 A 35Ah AGM lead-acid battery is tested using the West Mountain Radio CBA to show the effect of simply ? lling the battery voids with mineral oil as a compensating ? uid. The CBA is programmed to cut-off at a voltage of 10.50v. The top line (red) shows the
Figure 1 A self-righting vehicle design with buoyancy high and weight low, WHOI’s SeaBED AUV captures the attention of a pair of curious Antarctic penguins as it is deployed from the British research vessel James Clark Ross. Vehicle designers allowed for temperature reduction of battery capacity. Recharge
regulated industry in the world.” How- ever, commercial success depends on many factors, not least a predictable OPEX. Over the past four years, SMD has worked with Oil States Industries to calculate cost per tonne ? gures for prospective customers. Patania II uses jet water pumps to Oil States’
FEATURE SEABED MINING by a sea? oor plume from its pilot collection system test. pact, nodule collection system that utilizes mechanical and The Metals Company recently signed a binding MoU with hydraulic technology. Paci? c Metals Corporation of Japan for a feasibility study on The company’s SMD
FEATURE SEABED MINING bilical. It has passive heave compensation which nulli? es the necott. “The focus since then has been on scaling while en- wave, current and vessel motions that in? uence loads in the suring the lightest environmental impact,” says The Metals power umbilical. The LARS can
SEA-KIT USV Maxlimer returning from HT-HH caldera in Tonga. © SEA-KIT International data and further assess ecosystem recov- ery. What is known, noted Caplan-Auer- bach, is that the impact of submarine vol- canoes on humans is rare. “The HT-HH eruption was a tragedy, but it was very unusual. It let us
Auerbach explained that ideally, “one ? ed layers of geothermal activity,” noted changes over an area of 8,000 km2. They would have both instruments: seismom- Skett, “and the change in salinity and dis- found up to seven km3 of displaced ma- eters to detect and locate subsurface ac- solved particles for
elatively inactive since 2014, the Hunga Tonga–Hunga Ha‘apai (HT-HH) submarine volcano began erupting on December 20, 2021, reaching peak intensity on January 15, 2022. This triggered tsunamis throughout the Pa- R ci? c, destroyed lives and infrastructure, and generated the largest explosion recorded
About the Author vey with the pipe tracker is not required, resulting in signi? - Svenn Magen Wigen is a Cathodic Protection and corrosion control cant cost savings, mainly related to vessel charter. expert having worked across The major advantage of using FiGS on any type of subsea engineering, design
• Integrity assessment, and otherwise covered, e.g., by rock dump. As for depletion of • Mitigation, intervention and repair. sacri? cial anodes, this can be dif? cult or even impossible to Selecting the best method for collecting the data these work- estimate due to poor visibility, the presence of
sensor options for longer mission periods. About the Author For glider users working in ? sheries and conservation, Shea Quinn is the Product Line Manager the Sentinel can run several high-energy passive and active of the Slocum Glider at Teledyne Webb acoustic sensors, on-board processing, and imaging
MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Gallaudet, Kevin Hardy is President PhD, Rear Admiral, U.S. of Global Ocean Design, Navy (ret) is the CEO of creating components and Ocean STL Consulting and subsystems for unmanned host of The American Blue vehicles, following a career
TECH FEATURE SITUATIONAL AWARENESS SITUATIONAL AWARENESS SYSTEM BATTLES COGNITIVE FATIGUE IN WATCHKEEPERS All images courtesy Groke Technologies Today’s evolving maritime security risks pose all-too-familiar threats to international shipping, and as just one of the many causes of fatigue, they add
Tech Files Latest Products, Systems and Ship Designs “Wall Climbing Robot” Danish Pilot calls gets ClassNK Nod LEGO Model "A tribute build to a work life at sea" Image courtesy MOL, Sumitomo Heavy Industries lassNK granted its Innovation Endorse- Image courtesy Espen Andersen/DanPilot ment for
SIMULATION e have a close relationship with tech- Realism is prized beyond immersive, photo-realistic visu- nology, evidenced by, for example, als, and providers are introducing increasingly accurate func- the phones we are estimated to un- tionality. FORCE Technology’s upcoming DEN-Mark2 math- lock around
FEATURE A closeup of a blade installation process taken via drone. A blade handling system is apparent (in yellow). Images courtesy of Mammoet requirement for the development of these cranes, particularly ling area. This would result in a major time and fuel saving. in ? oating offshore wind,” says
CRANES & OFFSHORE WIND Cadeler’s new NG-20000X class vessels will have 2,600t cranes, and its new NG-20000F class vessel will have a 3,200t crane. Similar new vessels for Havfram will have a crane of approximately 3,200t, as will Van Oord’s KNUD E. HAN- SEN-designed newbuilding currently being built in
FEATURE Image courtesy of Cadeler NEW CRANES FOR OFFSHORE WIND EFFICIENCY NOV is upgrading the cranes on Cadeler’s existing O-class WTIVs. The end may be in sight, but the race for bigger cranes is still having an impact on offshore wind project ef? ciency. By Wendy Laursen 30 Maritime Reporter
FEATURE INTERVIEW track missiles and warheads for the Mis- sile Defense Agency, and it travels with its support ship, the MV Hercules. For our Service Support ships, we have the two hospital ships, USNS Mer- cy and Comfort; two rescue and salvage ships; two submarine tenders; and the Sixth Fleet ?
RADM PHILIP SOBECK, MILITARY SEALIFT COMMAND With COVID, we had to make some hard choices for our Do your CIVMARs have upward mobility? mariners because we couldn’t rotate. Many of our mariners The Navy has Sailors who become “Mustangs,” and work found other employment, and were able to use their skills
RADM PHILIP SOBECK, MILITARY SEALIFT COMMAND Photo by Brian Suriani USN Military Sealift Command From a global supply chain perspective, What makes MSC so vital to the we’ve learned a lot about dealing with Navy’s ? eet and our military disruptions. COVID delivered a big forces around the world? wake-up
offshore wind; and the foreign ? ag Maersk supply WTIV at Seatrium Singapore, together with U.S. ? ag feeder ATBs for transportation and installation of the Empire Wind. Three newbuild SOVs and three conversions/retro? ts were award- ed, too, and 22 CTVs were also announced. The ? rst US rock installa
INTERVIEW WE ARE ENGAGED WITH MULTIPLE US OSW WIND DEVELOPMENTS AND SEEING AN UP-TICK FOR CVA, TECHNOLOGY REVIEW AND RISK REDUCTION SERVICES IN EARLY DEVELOPMENT PHASES. WITH NEW LEASE ROUNDS COMING AND NEW OPPORTUNITIES, WE DO NOT SEE A BIG SLOWDOWN FOR OSW DEVELOPMENTS APART FROM THE OBVIOUS
ROB LANGFORD, VP, GLOBAL OFFSHORE WIND ob Langford has worked in the offshore industry ABS. “We are growing and evolving our services across all for more than three decades, ‘cutting his teeth’ offshore infrastructure along with our continued support to the in a UK design ? rm working in the North Sea