Page 50: of Maritime Reporter Magazine (October 2012)

Marine Design & Construction

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VESSELSBollinger Delivers First Ocean Class Tug to Crowley Bollinger Marine Fabricators, L.L.C., Amelia, La., delivered the Ocean Wave, the first of four ?Ocean? class tugs, to Crowley Maritime Corporation. ?We are extremely proud of our Ocean Class team and the delivery of the first in class tug, Ocean Wave,? said Chris Bollinger, EVP, Bollinger Shipyards. ?Our partner, Crowley and Jensen, as well as our numerous vendors, have worked hard to develop and deliver a pre- mier vessel into the International marine market and we look forward to future de- liveries of sister Ocean Wind and DP2 vessels Ocean Sky and Ocean Sun.? The Ocean Wave is the first of the Ocean class tugs and is the first of two 10,880 BHP tugs that are featured withDP1 capabilities. Ocean Wave is twin screw with controllable pitch propellers (CPP), in nozzles with independent highlift rudders. The hull is welded steel con- struction and is outfitted for long range ocean towing, dynamic positioning, fire- fighting, rescue and salvage towing, as well anchor handling. The vessel is de- signed and outfitted with all tanks con- taining oil and oil traces inboard of theside shell to create a double hull and de-signed for zero discharge of any machin- ery cooling water, gray or black water, further safeguard the environment. "Taking delivery of this first ocean- class tug is a significant milestone for Crowley and our customers who will benefit from its use on their projects,? said Tom Crowley, company chairman, president and CEO. ?These Jensen Mar- itime-designed towing vessels ? three of which are under construction at Bollinger? are a new generation of powerful, high- tech and environmentally friendly work- horses for Crowley that will further solidify our standing as an industry leaderin ocean towing, salvage and offshore marine support for the upstream energy industry.? Propulsion for the Ocean Wave is pro- vided by two (2) Caterpillar C-280-12 Tier II diesel engines, designed to operate on Ultra Low Sulfur Diesel fuel and each is rated at 5440 BHP @ 1000 RPM, driv- ing the 153.5? diameter CPP Propellersthrough Reintjes LAF 5666 reductiongears. The bow thruster is a Berg VFD 850 HP unit. Electric power is provided by two (2) 1475 KVA shaft generators, one (1) 340 kW Caterpillar C-18 Tier II auxiliary generator (Harbor Generator),and one (1) 125 kW Caterpillar C-6.6Tier II emergency generator system. The towing and deck equipment is featured with an Intercon ? DW275 hydraulic winch with upper drum capacity for3,000 ft. of 2.5-in. wire and lower drum with 4,200 ft. of 2.75-in. wire, Triplex tow pins, Triplex shark jaws and an open stern roller. The vessel is U.S. flagged and complies with all applicable rulesand regulations for unrestricted ocean towing, International Load Line Certifi- cate, SOLAS and ABS DP1, Green Pass- port classification. Acta Marine Takes Four Shoalbuster AHTS' Damen Shipyards Group will supply Acta Marine with four Shoalbuster anchor han- dling tugs. Three of the anchor handling tugs will be supplied from Damen Marine Services? charter fleet, while Damen Shipyards Hardinxveld will be supplying the fourth, a new Shoalbuster, in March 2013. ?Shoalbusters are excellent multi-purpose vessels that we will be able to use all over the world in dredging and marine contract- ing projects, as well as for oil and gas projects and offshore wind projects?, says Govert- Jan van Oord, managing director of Acta Marine. The DMS Eagle and DMS Globe are Shoalbuster 2609s that will be deployed in the Persian Golf as they were before. The DMS Dunnock and the new ship are larger, 3,300 horsepower units and a bollard pull of 45-50 tons. These latter two vessels are the sister ships of the Coastal Vanguard, which Acta Marine purchased from Damen at the end of 2010. The DMS Dunnock will be transferred in Singapore in January 2013, putting the ship in an excellent location to take on charter assignments in Southeast Asia and Australia. The new Shoalbuster is cur- rently under construction in the Netherlands and will be delivered in March 2013. All Shoalbusters are built by Damen Shipyards Hardinxveld. 50Maritime Reporter & Engineering News MR#10 (50-56):MR Template 10/5/2012 9:53 AM Page 50

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