Page 18: of Maritime Reporter Magazine (April 1989)
The ship-handling tug Charles H. Cates X features a hull of all-welded steel, double-chime form, with transverse fram- ing, which is unique to the Cates fleet. The hull form was developed jointly by the company and naval architect Rob- ert Allan Ltd.
Allied Shipbuilders Delivers
Allied Shipbuilders, Ltd., North Vancouver,
B.C., Canada, recently delivered the 57-foot 8- inch shiphandling tug Charles H. Cates X to
C.H. Cates & Sons Ltd., North Vancouver,
Based on a design by Vancouver-based naval architecture and marine engineering firm Rob- ert Allan Ltd., the Charles H. Cates X has a molded breadth of 24 feet 2 inches, depth of 9 feet 9 inches and extreme draft of 10 feet.
Her propulsion machinery consists of two high-speed Caterpillar 3508 TA main diesel engines, each rated at 650 bhp at 1,600 rpm, coupled to 360-degree azimuthing drives through a 1.1 ratio gear/clutch assembly. The
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Executive Plaza IV. Hunt Valley, MD 21031 USA (301) 682-5982 or 682-5985 FACS No. 3016826256 drive shafts contain flexible coupling elements at the input to the Niigata model ZP-56 Z- drives, and the gear reduction of 378 rpm at the propellers are achieved within the Z-drive units themselves.
Electric power for the winch drive, steering unit control and all shipboard services is pro- vided by a pair of 95 kw, 230/3/60 AC genera- tors. Mitsubishi 6D16-T auxiliary engines each drive a Simpower B254C alternator.
The winch drive and Z-drive steering motors are controlled by Mechtronics 59000 series fre- quency modulating motor drives, to achieve a full range of variable speed control from the AC power supply.
The ship-handling operations of the Charles
H. Cates X are carried out from the fore deck, utilizing a single-drum variable speed electric- driven line-handling Burrard Iron Works winch.
The Burrard winch stores a 400-foot 2-1/2-inch- diameter Round Plait Polyester Samson Braid towing line.
The all-steel Cates X will operate in Vancou- ver Harbor providing ship assist services.
CHARLES H.CATES X
Main engines (2) Caterpillar
Auxiliary engines (2) Mitsubishi
VHF radiotelephones Raytheon
Echo sounder Datamarine
Line-handling winch Burrard Iron Works
Towing line Samson Braid
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For free literature detailing the boatbuilding services of Allied Shipbuilders,
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For literature completely de- scribing the naval architecture and marine engineering services of Rob- ert Allan Ltd.,
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Bestway Systems Develops
Ship-Based Computer Systems
For Private/Commercial Sectors
Bestway Systems, Inc. has developed ship- based computer systems for both the private and commercial sectors. A special chassis has been hardened to withstand abnormal tempera- ture, humidity, dust, vibration and shock ex- tremes. Based on Interactive's UNIX/ix, the platform is mated with fiber optic terminals, bringing EGA capability to all users, whether business or scientifically oriented.
The chassis, a standard 19-inch rack mount, is combined with a likewise mounted computer- ized UPS system which interacts directly with the operating system. Communication with land-based hosts is achieved over modems via satellite link. Up to 12 users per node are possi- ble, with multiple nodes in a TCP/IP network.
Targeted for private yachts 100 feet and greater, and commercial vessels, the systems are expected to be available in the second quarter.
For more information and free literature from
Circle 58 on Reader Service Card
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Maritime Reporter/Engineering News