CONSTRUCTION ACTIVITY AT WORKBOAT YARDS
On TheWays
ON THE WAYS
Diversified Marine Inc
Diversified Marine delivers new harbor tug to Brusco
6,300-hp harbor tug will work on the West Coast.
D
iversified Marine Inc. (DMI), Portland, Ore., recently delivered the 78'×40'×14' tug Apollo to Longview, Wash.-based Brusco Tug & Barge Inc. DMI said the new tug, which Brusco is leasing to Crowley Maritime, is the most powerful harbor tug ever built under 80'. Main propulsion for Apollo comes from twin Caterpillar 3516 diesels, producing 3,151 hp at 1,800 rpm each. The Cats are hooked to Berg Propulsion MTA 628 Z-drives. The combination creates a running speed of 15 knots and a bollard pull of 94 short tons. “Apollo is the second vessel in our RApport 2500 D series,” said Frank Manning of DMI’s business development team. “We have a third under construction now and have a contract for a fourth. Apollo’s performance has been very impressive. Noydena (Hercules) was the first boat in the series and set the initial record with 89 short tons bollard pull. Each delivery since has increased bollard pull and horsepower. Our customers have been very excited with the amount of power in a small footprint.” Designed by Robert Allan Ltd. with a 17'3" draft, the new steel tug will handle ship assist and escort duties on the West Coast. Apollo will carry a crew of six. Ship’s service power will come from a Cat genset sparking 156 kW of electrical power. The tug will be USCG classed Subchapter M. Capacities will include 21,964 gals. of fuel; 2,508 gals. DEF; and 3,480 gals. potable water. “We are proud of the success and feedback from this 34
series,” said Manning. “We have a sistership, Athena, delivering soon with 6,772 horsepower (about 400 more than Apollo). It should surpass Apollo as the most powerful under 80-foot tug ever built.” — Ken Hocke
Gladding-Hearn to build hybrid crew transfer vessel for Mayflower Wind
M
ayflower Wind announced in October that it has awarded a contract to Gladding-Hearn Shipbuilding/ Duclos Corp., Somerset, Mass., for the design and building of a Jones Act-compliant hybrid battery diesel-electric crew transfer vessel. Mayflower Wind is developing a planned 804-megawatt offshore wind project off southern New England Design of the vessel would occur during 2022-2023, setting the stage for building and launching the hybrid CTV in the mid-2020s, timed for the start of operation of wind turbines by Mayflower Wind. The project involves a multiparty agreement that includes other global maritime industry collaborators that have leading roles in offshore wind vessel design including Incat Crowther; BAR Technologies in the UK; Corvus Energy; and the American Bureau of Shipping (ABS). However, the specification and design process will begin only if Mayflower is awarded another contract under the latest Massachusetts procurement for offshore wind. Mayflower is a 50/50 joint venture between Shell New Energies www.workboat.com • DECEMBER 2021 • WorkBoat
