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Du Pont 'Kevlar' Mooring Ropes Perform Like Steel, Handle Better Than Nylon Cables and ropes of Du Pont's high-strength "Kevlar" aramid fiber are replacing steel wire for some of the world's toughest mooring jobs. Five times as strong as steel, pound for pound, rope of Kevlar is only one-sixth the weight of steel at equal diameter, with lower stretch than other synthetic fibers. Groton Pacific, a firm that man- ages three large oil carriers, has for some time specified Kevlar as a syn- thetic replacement material in mooring tails and ropes on its ves- sels Hawaiian King, Hawaiian Sun and Hawaiian Monarch. "These carriers require extraordi- nary performance and safety char- acteristics from a rope material," said Demetrius Panagopulos, technical director for Groton Pa- cific. "We specified mooring tails of Kevlar because, relative to polypro- pylene tails, Kevlar has low elonga- • ll PM 1 A mooring line of Du Pont Kevlar is easily carried by a single crewman. At one-fifth the weight of steel on land, and one-fifteenth the weight in water, the ropes lessen the number of crew hands needed for docking. tion, is stronger and lighter and is easier to handle," he added. According to Du Pont, rope main- tenance is another area where Kev- lar outperforms steel. The cost sav- ings is in the hours of maintenance on steel wire that are not necessary with the Kevlar rope. The designer and maker of the lines for Groton Pacific says that mooring lines and mooring tails for tankers and other ships are ideal uses for ropes made of Kevlar. Such uses take full advantage of the many principal characteristics of Kevlar: high strength, light weight, corro- sion resistance, low stretch, long fa- tigue life, weather resistance, chemi- cal resistance and flexibility. For free literature giving full in- formation on cables and ropes of Du Point's high-strength Kevlar, Circle 56 on Reader Service Card New Literature Describes Broco Underwater Cutting And Welding Systems Broco, Incorporated, Rialto, Cal- if., is offering a new four-page full- color brochure describing the "Bro- co Underwater" line of underwater cutting and welding equipment. The new literature fully describes and illustrates the features and ben- efits of the BR-22 Ultrathermic Cutting Torch and Broco Under- water Ultrathermic Cutting Rods. Also described are SofTouch Wet Welding Electrodes and the BR-20 Welding Stinger. SofTouch welds consistently meet AWS D3.6-83/89, the standard for certifying underwater welds. The Broco Underwater Ultrather- mic Cutting System enables divers to quickly cut through almost any- thing including cast iron, brass, oth- er ferrous and nonferrous metals and concrete. The Ultrathermic Cutting Rod will cut through ma- rine growth, rust and mill scale eliminating the need for pre-clean- ing. According to the company, the unique characteristics of Broco Un- derwater Ultrathermic Cutting Sys- tems and SofTouch Wet Welding Electrodes provide the fastest, most cost-effective means of completing underwater tasks involving cutting or welding. For more information and free lit- erature from Broco, Circle 42 on Reader Service Card Leaders in maritime communications electronics for over 60 years 441 U.S. Highway 1 (201) 527-0300 FAX: (201) 527-8355 TELEX: 4754132 Elizabeth, NJ 07202 (212) 571-0130 (201) 527-9866 4754584 Mackay COMMUNICATIONS MACKAY'S SYSTEM DESIGN CAPABILITY COVERS GOVERNMENT REQUIREMENTS SUCH AS: • INTERIOR/EXTERIOR COMMUNICATION • INTEGRATED/DISCRETE NAVIGATION • HYDROACOUSTIC SYSTEMS • DYNAMIC POSITIONING EQUIPMENT • CUSTOM TURN KEY INSTALLATION TEAMS • MIL STD 1310 AND NAVY STD ITEMS • REPAIR, OVERHAUL, MAINTAIN AND RETROFIT • EMI/EMC SURVEYS IAW MIL STD 1605 • DESIGN AND PLAN IAW MIL STD 1680 Circle 224 on Reader Service Card Maritime Reporter/Engineering News Complete Marine Refrigeration Systems Air Conditioning Compressor and Chiller Units Reefer Cargo Box Installation/Repair Whatever Your Application It Pays To Contact ADRICK MARINE CORPORATION CALL US To Put ADRICK'S INNOVATION To Work For You • Dunham Bush Marine representative • Walk-in coolers and freezers • Portable reefer storage units • Portable A/C dockside systems • Control room dehumidification systems • Self contained A/C uprights and compacts • Fan coil units • Fiber glass panels with wire mesh • Stainless steel work, shelves, floor grates • Reefer cargo box doors • Door gaskets ADRICK MARINE CORPORATION ADRICK MARINE CORPORATION 320 Cantor Avenue Linden, NJ 07036 Call (800) 326-ADRICK (201)862-5944 Fax (201)862-2209 AIR CONDITIONING REFRIGERATION Circle 201 on Reader Service Card 68
