HOUSTON – As part of its new vessel build program, Crowley Maritime Corp. has christened the third of four new tugboats in the ocean class series – Ocean Sky – in Houston. The ceremony welcomed the third dynamic positioning (DP) tugboat to the company’s expanded ocean towing fleet.
TheOcean Sky, which features DP-2 technology, is part of a four-vessel family of tugs suited to work with Crowley's new 455 series high-deck strength barges, which measure 400 ft long by 105 ft wide (122 m by 32 m). Crowley’s ocean class tugs are outfitted for long-range, high-capacity ocean towing; rig moves; platform and FPSO tows; emergency response, and firefighting.
All four of the ocean-class tugboats are designed to have a minimum bollard pull of 150 metric tons (165 tons) and a range of 12,600 nautical miles at 15 knots free running. They are outfitted with twin-screw, controllable-pitch propellers in nozzles, and high lift rudders for a combination of performance and fuel economy.
The fourth and last planned vessel in the series,Ocean Sun, is slated for formal christening in Lake Charles, Louisiana, during mid-August.