July 14, the North CSIC Norway OHT old company will be a shuttle tanker "Swallow" round converted into a new semi-submersible heavy lift vessels, and successfully delivered. This marks the North CSIC made in broadening the field of ship repair and for repair of high value-added, high-tech aspects of marine ship a new breakthrough, but also refresh the North CSIC single ship repair large projects, the project is difficult, the output value the most high, and many of the long duration.
      "Swallow" round-by shuttle tankers converted into semi-submersible heavy lift transport ship project, first of its kind in the North Sea, its engineering and construction engineering difficulty is equivalent to a new ship. The wheel on June 11, 2014 into the plant in 2015, June 27 to 30 successful trials, July 9 to 10 successfully completed test deepwater dive (dive 21.5 m), smooth delivery July 14 . During plant modification, "Swallow" round undergone a total of six times into the dock, the hull will be shortened by 60 meters and the bow increases the driving floor; modified to remove the old tubing 20,000 meters, the new ballasting, sweeping warehouses, ventilation tube Department of nearly 900 tons; circumcision exploded more than 7500 tons of old steel, prefabricated, equipped with a new segment more than 8200 tons; the original and the new ship ballast tanks special coating engineering 140,000 square meters; plus new bow and stern drive new building plus crew room interior outfitting, a total of 190,000 meters cabling; installation of various types of bow bridge communications and navigation, communications equipment, facilities, and complete the commissioning of electrical equipment. Owner evaluation "Swallow" wheel modified in very good condition, and expressed willingness to continue cooperation in the future. DNV classification society representatives that the new boat retrofit after basically meet the design requirements. Especially bow increased driving floor, it can be manipulated to achieve a fore and aft sail, it is rare. Including variable pitch propeller, bow and stern thruster, David Rudder, shroud, including ship propulsion system was transformed advanced features, regulating speed, steering and economy, efficiency has improved significantly.