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BOATS & BARGES Allied Shipbuilders Deliver New Caterpillar-Powered Z-Drive Ship-Assist Tug One of the unique features of the Cates 3 is the line-handling crane on the foredeck. An Atlas extending, knuckle boom crane is used to transfer the tug's nylon/polyester hawser to the deck of an attended ship. Allied Shipbuilders Ltd. of North Vancouver, Canada, recently deliv- ered the 74-foot-long by 28-foot- beam tug Charles H. Cates III (Cates 3) to C.H. Cates & Sons Ltd., also of North Vancouver. The ves- sel, constructed to the design of Robert Allan Ltd.. is the latest in C.H. Cates & Sons' fleet of Z-drive ship-assist tugs for service in the Port of Vancouver. The Cates 3 is essentially identi- cal to other Z-drive tugs in the Cates fleet, with twin Z-drives in a "re- verse-tractor" configuration. The earlier vessels have proven to be almost ideal for service in the Port of Vancouver. The tug is configured as a shift boat, with day room facilities only for the crew of two persons. The wheelhouse is designed for one-man operation and has now been refined through three vessels to the point where every feature is situated optimally for safe and ef- fective control of the tug. Visibility is virtually unimpeded through 360 degrees, with excellent downward and overhead vision all-round. Main engines on the Cates 3 are a pair of CAT 3512 TA diesels, each rated 1,175 bhp at 1,600 rpm for the ship-berthing service. Each engine is connected to a Niigata Model ZP- 2A 360-degree azimuthing drive through a Niigata Model RGC- 130K clutch/reduction gear, and Geislinger torsionally resilient cou- pling. (continued) SHIPBOARD TESTING Mackay COMMUNICATIONS EB NERA SATURN C INMARSAT Standard C Satellite Communications Terminal For complete facility brochure or technical information concerning any test requirement, call Dayton T. Brown, Inc. See us at ASNE Day '91 Booth #657 Engineering & Test Division, Church St., Bohemia, NY 11716 Phone: (516)589-6300 FAX: (516)589-3648 Circle 343 on Reader Service Card Lightweight, inexpensive satellite communications The ideal satcom for smaller ships and pleasure craft as well as backup commu- nications for larger vessels Provides text and data communication Less than 26 pounds total weight Compact, robust, and easy to install Meets IMO carriage requirements for vessels of 300 GRT and over in Sea Area A3 under GMDSS As simple to use as a typewriter WE Leaders in maritime communications electronics for over 60 years • U.S. Distributor for EB NERA • Authorized service agents for most manufacturers of marine electronic equipment Service Depots at major ports in the U.S. and worldwide • Mackay Service Fast and Dependable MARINE COMMUNICATIONS BY PROFESSIONALS FOR PROFESSIONALS 441 U.S. Highway 1 Elizabeth, NJ 07202 (908) 527-0300 (212) 571-0130 FAX: (908) 527-8355 (908) 527-9866 TELEX: 4754132 4754584 12 Circle 292 on Reader Service Card Maritime Reporter/Engineering News Dayton T. Brown, Inc. provides complete test services for shipboard qualification testing in accordance with MIL-S-901 Shock, MIL-STD-167 Vibration, and MIL-E-16400 test requirements. Dayton T. Brown, Inc. has over 40 years of testing experience and affords you a complete range of dynamic, environ- mental, atmospheric, and electromagnetic testing facilities as well as independent engineering services in a centralized location.
