Page 88: of Maritime Reporter Magazine (November 1998)

WORKBOAT ANNUAL

Foss Maritime Receives ASD Thruster Tug

ASD thruster tug Daniel Foss, the first of ;hree state-of-the-art conversions from conven- ional twin screw to azimuthal stern drive

ASD) tugs for Foss Maritime Company,

Seattle, has been delivered by Marine industries Northwest, Inc. (MINI), Tacoma.

In addition to being fitted with new Ulstein nodel 900H ASD units together with Nautican ligh-performance nozzles an skewed pro- filers, Daniel emerged from the shipyard with lew Caterpillar 3512B main engines and an ill-new, high-visibility pilothouse containing a nodern control station.

The conversion increased 96-ft. Daniel's bol- ard thrust from 55,000 to more than 90,000 bs., and its horsepower from 2,250 to 3,300 hp. nhe Seattle-based ASD-thruster tug is more naneuverable for assisting ships, escorting ankers and performing barge work on Puget

Sound. The conversion of Daniel and two sub- equent tugs - including Long Beach-based sis- er tug Peter Foss - from twin screw to ASD- thruster technology is part of a $10 million enhancement of Foss tugs assisting ships and escorting tankers coastwide.

MINI's installation of the Ulstein ASD units on Daniel significantly increases bollard pull and maneuverability due to the ability of the units to rotate 360 degrees. The tug can turn on its own axis and has high thrust in all direc- tions. Conversion work commenced with removal of the traditional pilothouse forward and the previous main engines, reduction gears and steering units. Added was a newly fabricat- ed pilothouse amidships that has far better vis- ibility for ship assist and other harbor services work. New thruster foundations were installed and various engineroom systems modified to accommodate the larger Caterpillar engines.

Following the pierside work, Daniel was dry- docked for hull modifications, including a new keel profile and bottom contour changes aft, required for conversion of the tug to ASD- thruster propulsion. The Ulstein units were then mounted aft. After returning to the water, work was completed in the engineroom and other improvements were made, including a new Markey model DYSW-42 line handling hawser winch forward of the house on the main deck to facilitate ship assisting in the ASD mode. As part of Foss' fleet enhancement pro- gram, Long Beach-based Phillips Foss is cur- rently being retrofitted at Foss Shipyard in

Seattle. The 114-ft. tug and sister vessel Jeffrey

Foss, will return to service with Nautican pro- peller nozzles, skewed propellers and high-per- formance rudder assemblies.

Circle 40 on Reader Service Card

SCHOTTEL for the

Shipping World r E.3S5 US

SCHOTTEL serves you a finely balanced menu reflecting its wealth of experience as a propulsion specialist and offering the optimum propulsion solution for every vessel. Our product range embraces economical and reliable propulsion and manoeuvring systems rated at up to 30 MW. We are thus in a position to provide the right thrust for your vessel too.

SCHOTTEL. Inc. • Baylor Company 500 Industrial Blvd.

Sugar Land, Tx 77478 • USA

Tel.: 281 / 274 - 0475 • Fax: 281 / 274 - 0490

Circle 268 on Reader Service Card

SCHOTTEL-Werft Josef Becker GmbH & Co. KG

Mainzer Strasse 99, D-56322 Spay • Germany

Tel.: +49 (0) 2628 / 61 -0 • Fax: +49 (0) 2628 / 61 -300 e-mail: [email protected] • http://www.schottel.de

Circle 330 on Reader Service Card ... with a

Resilient Coupling from the

Clutch and Coupling Company's diverse line of couplings. • over 30 different configurations • ratings from 36,000 lb. in. • designed for ease of • easily replaceable elastomers • unsurpassed service support

STT 1820 Highway 1 North

Greenville, MS 38701

PH: 601 -332-8716 FAX: 601 -335-0065