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Four of drydock sections for Bethlehem Steel's new Sabine yard. Shiplift/Drydock (continued) dock has been designed to accom- modate both modern U.S. combat ships such as the DDG51, and also commercial vessels of the Panamax size; and it features M.A.N.'s unique remote controlled bilge block sys- tem that allows easy adaptation to the various different hull forms of modern Navy ships. (See MARI- TIME REPORTER issue of May 15, 1985, page 8.) M.A.N.-GHH's facilities have im- mediate access to the open sea, and feature large fabrication shops to preassemble dock modules, as well as a slipway of over 1,200 feet in width to accommodate the con- struction and launching in one piece of docks of any kind or size. At the time of launching, docks are com- pletely outfitted and ready for tow- age to final destination. Besides customer-tailored design and building of docks by in-house specialists, M.A.N.-GHH offers ad- ditional services, such as consulta- tion for anchorage and offsite prep- aration, towing to site at fixed prices, commissioning, personnel training for dock operation, and as- sistance in securing long-term fi- nancing. The management of the Dock- building Division, including engi- neering and sales, is located at M.A.N.-GHH headquarters in Oberhausen-Sterkrade, Germany. M.A.N.-GHH is represented in the U.S. by American M.A.N. Cor- poration in New York, with branch offices in Houston, San Francisco, and Seattle. MARINE TRAVELIFT Circle 92 on Reader Service Card Located in Sturgeon Bay, Wise., Marine Travel, Inc. is one of the world leaders in the design and manufacture of mobile boat hoists. The latest addition to the compa- ny's complete line of hoists is the 100 BFM, called a "little" giant that can handle commercial fishing ves- sels, workboats, and pleasure craft. This wide versatility can result in more customers and improved ship- yard utilization. Outstanding design features of the 100 BFM include: "beam for- ward" design for more rigging and foredeck structure clearance; all slings power-adjustable; high- strength, low-alloy main frame con- struction; fast, two-speed hoisting and travel; low, enclosed operator's cab; full instrumentation; orbital steering with automatic realign- ment; stainless steel hydraulic tub- ing; accurate load weight indicator; radial tubeless tires; mechanical anti-two-block system; fully en- closed, easy-access engine and hy- draulic compartment; and better boat handling with forward sling ad- justment aft of the front beam. NORSHIPCO Circle 85 on Reader Service Card Norfolk Shipbuilding and Dry- dock Corporation in Virginia has announced the arrival of the newest component in its ship repair facili- ties—a self-contained steel floating drydock that has been named Vir- ginian. Built in the Netherlands, it has a lifting capacity of 20,000 long tons, an overall length of 669 feet, overall width of 126 feet, and width between wingwalls of 103 feet at the operating deck level. The first half of the dock arrived at the shipyard in June this year and the second half during the first week of August, both towed across the Atlantic on oceangoing semisub- mersible barges. The dock was scheduled to become operational by the end of August. The new arrival will join the 950- foot-long, 160-foot-wide Norshipco Titan drydock, which has a lifting capacity of 54,250 long tons and gives the Norfolk shipyard one of the most significant privately owned drydock lifting capacities on the East Coast. The Virginian will be divided by five watertight bulkheads into six compartments, each 98.4 feet long. Two watertight longitudinal bulk- heads, each 23 feet from the center line, and one on the center line, will divide the dock into a total of 24 tanks. The most forward and most aft center tanks are both 118 feet long. Normal pumping time is ap- proximately 140 minutes. PEARLSON ENGINEERING Circle 86 on Reader Service Card pr^i!^ppp"'j which provide a means for quickly and easily handling ships between the water and the shipyard, moving them to level on-shore repair berths where material flow and access can be optimized. Pearlson Engineering Company, Inc. of Miami, Fla., designs Syncro- lifts to meet the specific require- ments of shipyard owners. Using state-of-the-art computer-aided de- sign and drafting systems, Pearlson prepares detailed design drawings for the shiplift platform and trans- fer system components that enable the client to fabricate these items locally. The specialized lifting equipment and control system are furnished by Pearlson, along with the services of a commissioning en- gineer to assist in the commission- ing and testing of the Syncrolift sys- tem. Syncrolift systems offer pushbut- ton ease of operation, drydocking in a minimum amount of space, dry- docking on an even keel at yard ele- vation with no obstructions to im- pede work area, continuous syn- chronization of all lifting points, and easy access to all components for lower maintenance costs. In October this year Pearlson will begin erection of the world's largest- capacity Syncrolift at Vickers Ship- building and Engineering Ltd. in Barrow-in-Furness, U.K. The Vick- ers shiplift will incorporate a plat- form 161.8 by 21.7 meters and have a lifting capacity of 24,000 metric tons. This installation is part of the Submarine Facilities Project and will include the world's largest sin- gle-lever transfer system. Groups of self-powered transfer cars will be used to position individual hull sec- tions during assembly as well as move the completed conventional and nuclear submarines from the construction hall to the Syncrolift platform for launching. The Vickers installation will fea- ture wire rope using a proprietary "brifil" material from British Ropes. In this process the spaces between individual wires are filled with a "plastic" material while the rope is formed. This results in what is commonly known as a "valley- filled" wire rope. Ropes manufac- tured in this way require only a small amount of surface lubrication and effectively eliminate the prob- lem of internal corrosion. It is antic- ipated that these brifil ropes will, have a useful life in excess of 10 years. Lloyd's Register of Shipping has approved testing of the wire rope assemblies at the site using Syncrolift® shiplifts and ship transfer systems are clearly the world leaders in the field, with more than 160 installations in 59 coun- tries. More than 99 percent of ves- sels docked on shiplifts worldwide are docked on Syncrolift shiplifts, Circle 118 on Reader Service Card Half of Norshipco's new Virginian drydock. 20 Maritime Reporter/Engineering News 100% OIL FREE AIR for Shipboard Service §* Pur-Pax® Air Compressors • forced air cooling system (bare compressor shown) • completely self-balanced* • vibration-free • heavy duty—up to 104 CFM/125 PSIG Pur-Pax " 100% oil-free com- pressors feature Dyna-Balance® - the unique design for complete balancing of inertia forces result- ing in a virtually vibration-free installation. For further informa- tion on the full line of Pur-Pax air compressors and complete air systems for shipboard applica- tions, call or write today. *Dyna-balance® models fea- ture the Braun linear drive design. Squire-Cogswell Company 3411 Commercial Avenue Northbrook, Illinois 60062 312/272-8900 TWX 910/686-0657
