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DISTINCTIVE Vessels of 2013 Our award-winning selections for this year represent a diverse portfolio of innovative coastal, offshore and oceangoing vessels, with a special focus on more fuel efficient, cleaner designs Borgøy World’s first LNG-powered tug DeemeD a milestone in the tug market—a market dominated by vessels running on diesel fuel—the Borgøy is the first in a pair of LNG powered tugs being built by Turkey’s Sanmar shipyard for Buksér og Berging. The twin tugs are the first tugs in the world to be powered solely by LNG. The use of LNG is expected to eliminate sulphur emissions, and reduce CO2 discharge by almost 30 percent and NOx discharge by up to 90 percent. Particulate matter emissions will also be brought down to nearly zero—meaning the tug will comply with all known future emission regulations. The 35 m x 15.4 m tug will be operated by Norwegian state oil company Statoil at its Kårstø gas terminal. Designed by owner Buksér og Berging and Marine Design, the Borgøy will be fitted with two 1,705 kW Rolls-Royce Bergen C26:33L6PG six-cylinder in-line gas engines driving two US35 azimuth thrusters. The tug operates at a speed of 13.5 knots. The propulsion package ensures the tug has rapid maneuvering and positioning capabilities essential to the tug’s escorting operations. The gas engine technology also meets the International Code of Safety for Gas Fuelled ships and DNV Classification Society rules. The Borgøy was built to DNV-Class including FiFi, oil recovery and escort notation. It has a static Bollard pull of 70 tonnes and escort capabilities of 100 tonnes steering force at 10 knots. The tug is also fitted with a main towing winch from Karmoy that has a brake load capacity of 250 tons and a deck crane. 20 MARINE LOG December 2013 a First: the world’s first lnGpowered tug, the Borgøy Aegir Deepwater Construction Vessel a recent winner of the 2013 KVNR Shipping Award, Heerema Marine Contractors’ 50,288 gt, 210 m deepwater construction vessel, Aegir will serve the offshore pipelay and construction market in ultra-deep water. The vessel, based on the customized Ulstein Sea of Solutions SOC 5000 design, is a DP3-classed vessel that can be self-propelled or dynamically positioned by means of seven thrusters. With its primary function as a pipelaying vessel, the Aegir comes equipped with a multi-joint pipe handling plant installed on its main deck. Assembled pipe spools are laid down to the seabed via J-lay tower situated above the moonpool in the center. The tower is also

December 2013 Marine Log Magazine

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