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Cummins-Powered Crewboat Joins Gulf of Mexico Fleet Largest Cummini There is a new generation of crewboats evolving to meet the needs of the Gulf of Mexico oil industry as it moves farther off- shore. At 170 x 30-ft. (52 x 9-m), Diamond Service's Paula Kay — launched at Swift Ships in Morgan City, La. — is stretching the size of these boats to meet oil company demand. Mike Swiber, Diamond Service's Purchasing manager, explained, "Customers want big- ger boats for their softer ride and safety in tough weather as well as cargo handling. They also want fast boats and the jets are fast enough to beat the weather when traveling 100 miles offshore." As size grows, owners of the four and five-engined boats have been experimenting with various means of propulsion from straight props, to a mix of props and jets. Paula Kay is propelled by jets only. Owner of the Morgan City-based compan, Wallace Carline has demonstrated his commitment to jets on his last two boats, the Detroit Diesel-powered Mr. Mel and the Cat-powered Lisa Ann. Like Paula Kay, the first two boats feature Hamilton waterjets. But Diamond Services chose four Cummins KTA38-M1 V-12 engines that will each deliver 1,000 hp con- tinuous at 1,800 rpm. The engines drive through Twin Disc MG 5204 marine gears with 1.5:1 reduction turning the shaft and 22.5-in. impeller at 1,200 rpm. Paula Kay can carry up to 200 long tons on its 105 x 24-ft. (32 x 7.3-m) cargo deck. Her tankage for transferable fuel is 17,800 gal- lons. In sea trials the vessel topped out at 31.5 knots with a full complement of 64 passengers and 10 tons of cargo. For more information on Cummins Mid-South Circle 41 on Reader Service Card Vosper Thornycroft, VSEL Due To Receive Navy Contract A joint venture between Vosper Thornycroft Holdings and VSEL will reportedly receive a five-year contract to run the U.K. Royal Navy's Fleet Maintenance and Repair organization. fr= CASCADE GENERAL I*—I PORTLAND SHIPYARD •Major overhauls and conversions •Full service capabilities •550,000 m2 of craft shops •two state-of-the-art machine shops •full-service pipe and sheet metal shops •large surface preparation and coating facility •large-scale structural fabrication shop •World-class facilities Dry Dock 4: largest floating dry dock in the Americas; •85,625 metric ton lift capacity Dry Dock 3: 26,573 metric ton lift capacity Dry Dock 1: 14,763 metric ton lift capacity •2,133 meters of full-service repair berths • 17 Whirley cranes up to 122 metric ton lift capacity y jp) '• •». .y - - *• •» • • M , * 7. - r;;. .1-- V. < • ' . • -V
