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WORKBOATS BBS Tug Design Specifications Length o a 120 ft (36 5 m) 4,300 gal of firefighting Width o.a 41.5 ft. (12.6 m) Capacities 90,600 gal. fuel oil; Main engines (2) Caterpillar 3606 1,990 gal lube oil; diesels (2,750 bhp at 1,000 rpm) Auxiliary power (2) Cah gensets driven by CAT 3304 DITA engines Hydraulic pump engine Caterpillar November, 1995 65 The automatic plotting system versions offer as standard: a built- in simulator; trial manuever capa- bilities; on-screen mapping facili- ties; smart card storage of self- drawn maps; auto acquisition and tracking of up to 20 targets; and latitude and longitude display for vessel and target position when interfaced with proper positioning equipment. For more information on Kelvin Hughes Circle 22 on Reader Service Card Circle 256 on Reader Service Card ly the product line has experienced an increase in workboat, as well as deep sea and luxury market sales, which Kelvin Hughes attributes to the system's easy operation and features, which include: • Limited number of controls (mouse-like trackball with three push buttons) • Simplistic menu-driven operation • High-definition color display • Compad table top, or floor mounting capabilities • Choice of 5-kW, 10-kW, or 30-kW transmitters • Low power consumption • Optional special high RPM antenna drive for high- speed vessels Elliott Bay Develops New Tug Design For Crowley Elliott Bay Design Group (EBDG), a Seattle-based naval architecture and marine en- gineering firm, has developed a new ship escort and assist tug design for Crowley Marine Services, Inc., of Oakland, Calif. Crowley plans to build two of the new-generation tugs, stationing one in Long Beach, Calif., and the other in Puget Sound; with deliv- ery anticipated in the fall of 1996. The new boats will feature ABS- classed hulls and machinery, ABS Class 1 firefighting capability, and Voith-Schneider 36GII/200 propul- sion units. The design features special acoustic insulation for crew protection and comfort, and the main decks inside the deckhouse are to be fitted with floating floors, with floating bulkheads and over- heads in the deckhouse staterooms. The 120-ft. (36.8-m) steel tugs will oper- ate at 14 knots, each propelled by a pair of Caterpillar 306 diesels, rated at 2,750 bhp, driving the Voith- Schneider units. "These will be truly state-of-the- art ship handling and escort tugs," said Crowley Vice President of Engineering Maynard Williams; "based on research and experience, we've very carefully thought out their size and power to match their mission." For more information EBDG Circle 130 on Reader Service Card
