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9:20 am: lift one-third complete. 3:20 pm: lift complete. as part of the combination lift- skid system or as a single-func- tional unit with the capability for additions at a future date. The components of the lift-skid system that were used by CBI during the lift operation con- sisted of the following: six chain jacks, each rated 175 tons at 3,500 psi; 12 balance cylinders (borrowed from the Gripper Jack portion of the complete system), each rated at 21.86 gpm at 5,000 psi; and 12 length (each 120 feet long) of 214-inch stud link GR3 chain with a total minimum breaking strength of 342 tons. Key advantages offered by the Hydranautics equipment used to lift main deck structures are nu- merous. Use of the equipment al- lows construction from the top down at yard level, minimizing high time, its problems and cost. Hydraulic load equalization is provided between load points. Real time load readouts are pos- sible for each lift point as well as the total deck weight. There is an inherent stiffness of chain support with the safety of steel to steel positive lockout at each chain pitch. The load can be lifted any distance from a fraction of an inch to hundreds of feet, then stopped and held as long as re- quired. Hydranautics points out that there are two primary advantages to purchasing the complete mul- tipurpose system. The cylinders are interchangeable between lift, positioning, and transfer modes of operation. The same power units may be used for lift, po- sitioning, and transfer functions. May 15, 1981 Far East-Levingston To Build Drillship For Global Marine Far East-Levingston Shipbuild- ing Ltd. (FELS), Singapore, re- cently announced it has signed a contract to construct a drillship for Global Marine Drilling Com- pany of USA. The vessel will be built in Singapore and is sched- uled for delivery in the first quarter of 1983. The vessel will be a twin-screw, diesel electric-powered single-hull drilling unit designed to drill up to 25,000 feet in water depths up to 2,000 feet. It will meet the in- tact and damage stability criteria of the current ABS and USCG Rules for "Mobile Offshore Drill- ing Units," and will incorporate the latest drilling technology. The 445-foot by 76-foot by 35- foot vessel will include a heli- copter deck designed to support the landing weight of a fully loaded Sikorsky S-61 helicopter. The self-propelled drillship will have accommodation facilities for 96 offshore personnel, including a six-person hospital. The drillship will be christened Glomar Bismarck Sea and will be among the largest drillships to be built in this part of the world. It will be the fifth drillship to be fabricated by Far East-Leving- ston Shipbuilding. He's a good reason to get'blastecfin Savannah. When Leon Martin sandblasts your ship he gets dynamite results. Leon is a Leaderman in our Drydock Department. Which means he has two great qualifications. He's experienced (27 years at Savannah). And can be rougher than blasting grit about getting a job done right. That's the kind of spirit you find at Savannah. It's why we're the best yard to do your major conversions, scheduled drydocking, and voyage repairs. Sure, we're also competitively priced. And blessed with a climate that lets us run full-bore all year. But without workers like Leon, our great prices and weather wouldn't mean doodly. If you want a yard that'll really bust its hump on your job, pick up the phone and give us a blast. The Savannah Yard. Savannah Shipyard Co. P.O. Box 787 Savannah, Georgia 31402 q Tel. (912) 233-6621 74 Trinity Place, Suite 1800 New York, New York 10006 St 4 Tel. (212) 432-0350 Write 191 on Reader Service Card 21
