Burrard Yarrows Corporation, Vancouver, B.C., Canada, recently received a $29-million contract to build an icebreaking Class 3 offshore supply vessel for Dome Petroleum Limited of Calgary.
The vessel, to be built at Burrard Yarrows' Vancouver yard, is scheduled to operate in the Beaufort Sea for Canmar Drilling Limited, Dome's seagoing arm, upon delivery in June 1982. It will provide support services to drillships.
The 4,450-ton vessel has an overall length of 82.5 meters (about 270 feet); breadth over reamers of 19 meters (62 feet), depth of 7.5 meters (25 feet), and is driven by two 4,500-hp diesels with twin-screw controllable-pitch propellers. The four-blade propellers are built to a tensile strength of 70 kg/m². They develop 4,080 base horsepower metric at 180 rpm. The ship, designed by Arctic Offshore Design Limited of Vancouver, carries 12 crew and 14 passengers.