Page 63: of Maritime Reporter Magazine (January 1988)

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The twin-screw, 360°-rotating-nozzle, ship-docking tug

Sally is powered by two G.M. Detroit Diesel Allison engines rated 900 shp at 2,400.

Powerful Docking Tug Delivered

By Gladding-Hearn Shipbuilding

Gladding-Hearn Shipbuilding of Somerset,

Mass., recently launched the twin-screw ship- docking tug Sally for delivery to Wilmington

Tug and Launch, Inc. of Wilmington, Del.

The tug is powered by two G.M. Detroit Die- sel Allison 12V-149TI engines rated 900 shp at 2,400. She has an overall length of 70 feet, beam on deck of 30 feet and draft of 12 feet 6 inches.

Described as having "the power of a bulldozer and the maneuverability of a sports car," the

Sally will handle vessels with deadweights any- where from 50,000 to 125,000 tons.

Like her sister boat Tina, delivered in 1977, she does not employ a conventional rudder with fixed propellers. Rather, she has a pair of inde- pendent, high-thrust, fully rotatable propulsion/ steering units that can be operated individually or together in any direction to put maximum power exactly where it is needed.

The Sally's pilothouse, high above the deck, offers unobstructed views in all directions. The helm station features dual unilever-type con- trols and a functional console with all necessary instrumentation. The tug is fitted with 12-inch bow and 16-inch aft towing bitts, two 40-ton hand-operated barge winches, and a hydraulic vertical capstan which is incorporated into the aft towing bitt. She is capable of a bollard pull of some 80,000 pounds. Schuyler 6-inch and 11- inch fendering borders the deck edge, and 9- inch-thick fendering provides gripping action during ship-handling operations.

For ease of service and maintenance, the

Ulstein angle drive units, including propellers and Kort nozzles, can be lifted through deck hatches without drydocking the vessel.

Crew's quarters, directly below the pilot-

Main engines G.M. Detroit Diesel Allison

Generator set . . . . Volvo Penta/Lima; Carey's Diesel

Propellers Ulstein Maritime

Steering Ulstein Maritime

Controls Ulstein Maritime

Compass Ritchi

Radar Raytheon

VHF radios Raytheo

Depthsounders Raytheo

Horn Buell

Bilge pumps Jabsco

Anchor Danforth

Battery charger Professional Mariner

Searchlight Phoenix

Navigation lights Aqua-Signal

Wipers American Bosch

Fendering Schuyler

Mufflers Cow house, include a two-man stateroom on the star- board side, a fully equipped gallery with a spa- cious dining area portside, and a toilet and shower compartment.

For more information and free literature on the facilities and capabilities of Gladding-Hearn

Shipbuilding,

Circle 48 on Reader Service Card

Soundcoat Offers Free Technical

Paper On Vibration Damping

For Shipboard Vibration

Frank Kirschner, vice president of engi- neering of the Soundcoat Company, Deer Park,

N.Y., recently presented a paper titled "Vibra- tion Damping for Shipboard Vibration and

Noise Control" to the Institute of Noise Control

Engineering (INCE).

The technical paper describes in detail the noise and vibration problems on a gas turbine- powered tanker and research vessel. For exam- ple, the major noise source in the gas turbine- powered tanker was transmission of structure- borne vibration from the gas turbine generator room to the living quarters through the deck plates and bulkheads and reradiation of air- borne sound from these plates.

To obtain a free copy of the paper from

Soundcoat,

Circle 54 on Reader Service Card

Q.E.D.

SYSTEM S. IIXJCZ:

VIRGINIA BEACH (804) 490-5000

MMEINQIWEEFSi iAVAL ARCHITECT!

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New York, NY 10013 (212) 431-6900

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San Francisco CA 94105 (415) 777-0500

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Falls Church, VA 22041

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MARINE ENGINEERS

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Sturgeon Bay, Wl 54235

Phone (414) 743-8282 TLX 753166, ESL 62388810

STURGEON BAY MODEL SHOP

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WELDING CONSULTANTS USA 6517 RADBURN. GREENDALE, Wl (414) 421-3252

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PROVIDING WELDING ENGINEERING SERVICES TO

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NAVAL ARCHITECTS & MARINE ENGINEERS 1258 N. AVALON BLVD. • WILMINGTON, CA. 90744

PHONE (213) 518-0940

January, 1988 63

Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.