Delivery of high bollard pull ocean-class tug
Crowley’s ocean-class tugs are ocean towing twin-screw vessels with controllable pitch propellers (CPP) in nozzles, high lift rudders and a bollard pull of more 150 tonnes. The first two ocean-class vessels, the “Ocean Wave” and “Ocean Wind”, are classed as Dynamic Positioning 1 (DP1) tugboats and are twin-screw, steel-hulled tugs with an overall length of 44.5m, beam of 14m, and design draft of 6.4m. The second two tugs of the class, “Ocean Sky” and “Ocean Sun”, will be classed as DP2 and will be 3m longer.
The tugs have been developed to work with Crowley's new 455-series heavy lift deck barges, which measure 121.92m by 32m and offer increased stability. Additionally, the tugs will be outfitted for rig moves, towing of platforms and floating production, storage and offloading (FPSO) units, emergency response and fire fighting. The ocean-class vessels will also have the capability to support salvage and rescue towing opportunities.
The second vessel, “Ocean Wind”, will be delivered later this year.