Page 10: of Maritime Reporter Magazine (April 1991)

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.

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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

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Meets IMO carriage requirements for vessels of 300 GRT and over in Sea Area

A3 under GMDSS

As simple to use as a typewriter

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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.