Page 46: of Maritime Reporter Magazine (October 1998)

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Western Towboat

WHAT DO THESE

NEW TUGS HAVE

IN COMMON?

The No. 1 Fender for Ship Assist

Schuyler's Model SR3D (Loop Style)

MM - *

MASTE8 ty OovAey Ataniw Se'vicei f Long Beach. CA

Eight years ago when our clients were asking us to build them a softer and stronger fender with more deflection and energy absorption, we did something about it. "Fendering the Future" •wfteton wfMii kCHUYLER RUBBER COMPANY, INC. | 16901 Wood-Red Rd. • Woodinville, WA 98072

Web Site: www.schuylerrubber.com 1-800-426-3917 (425) 488-2255 • FAX (425) 488-2424 • E-mail: [email protected]

Circle 324 on Reader Service Card

HYPACK for WINDOWS

The HYPACK series of advanced design programs continues to build on the Coastal Oceanographies reputation for reliability, accuracy, ana fast, world-wide service. ;„. jj^fcf

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HYPACK Hvdrographic Software gives you the hvdrographic power to lav out survey lines, create plotting sheets, and design cross sectional profiles in a flash. Graphically review your survey data and create new planned lines. Customize your screen sizes. Input up to nine devices, simultaneously. Have single and multibeam data collection capably at your fingertips. Display and edit tracklines, sounding profiles and text data. Apply tide, draft, heave-pitch-roll and sound velocity corrections.

Plus: Full DXF/DGN Support. Plotting, including smooth sheets. The ability to create cross section profiles of multibeam and longitudinal data. And a complete look at your Volumes, including average end area, prismoidal, contour and TIN models.

HYPACK's TIN Modeling Program

HYPACK's Survey Program

COASTAL OCEANOGRAPHICS, INC. 11-G Old Indian Trail

Middlefield, CT 06455

Phone: (860) 349-3800

Fax: (860)349-1982

VESSEL FOCUS: TUGS & TOWBOATS

Mobil Teams With CMS To Test

Lubes For Tugboats

Ongoing field tests by Mobil Corp. in cooperation with Crowley

Marine Services, Inc., have enabled the oil company to validate the per- formance of Mobilgard 450 NC, a non-chlorine, non-zinc lubricant for turbocharged medium- speed diesel engines. In a working partnership with Mobil, the two companies cooperate to find real-world lubrication solutions that allow Crowley's 100 vessel fleet to operate optimally. The relationship also helps Mobil develop oils suited to the engines, equip- ment and workloads of all tugboats and other vessels that operate con- tinuously in severe conditions.

Mobilgard 450 NC is an improved version of Mobilgard 450, a lubri- cant formulated to protect hardworking turbocharged medium-speed diesel engines from wear and deposits. In test after test, the non-chlo- rine, non-zinc formulation has demonstrated even better wear protec- tion and detergency than the previous formulation. Removing the chlo- rine from the formulation also makes it more environmentally accept- able, a benefit appreciated by Crowley

Marine Services, a company committed to safety and environmentally sound practices.

The latest test took place in April aboard Crowley's Invader class tugboat

M/V Sea Victory. The vessel's port and starboard engines operated on

Mobilgard 450 NC for eight months. An inspection of the vessel's EMD 20V 645

E5 engines confirmed that the lubri- cant, which contains less than 50 ppm of chlorine and no zinc, made a notice- able difference in engine cleanliness and wear protection. Mobil and

Crowley conducted a visual inspection on cylinders 4 and 14 of the port engine and cylinders 12 and 19 of the star- j board engine, all of which had operated j at least 14,000 hours since the last ] overhaul. With the covers removed,

Mobil and Crowley's engineers noticed an absence of sludge and hard carbon deposits in vital regions. According to

John ReShore, Americas Marine

Technical Manager of Mobil Marine

Sales & Services, "Cleanliness in this area reduces potential undue wear on cams, rollers, sliding valve surfaces and other critical parts." He adds, "The absence of hard deposits practically eliminates 'hot spots,' warping and fatigue." The inspection of M/V Sea Victory came on the heels of an extensive 8,000-hour, one-year test of Mobilgard 450 NC in several other Crowley Invader Class tugboats powered by either 20-645-E5 or 20-645-E7B Electro-Motive Division (EMD) engines. Test results showed reduced piston-ring wear and decreased air-box deposits as well as improved over-all cleanliness in the top deck of the tugboats' engines, according to an engineering report provided by Mobil. "By working closely with fleet managers and being on 24-hour call to help them solve real problems, we save them money—sometimes a lot of money. But the partnership also helps us develop products, tested in the real world, that improve our performance for the entire industry," said Mr.

ReShore. Crowley Marine Services provides worldwide contract and specialized marine transportation services. These include petroleum transportation and sales, tanker escort and ship assist, contract barge transportation and ocean towing, and logistics and support services. In

January 1999, the company will launch two Prince William Sound tugs.

These 10,192 hp vessels will be the world's most powerful tractor tugs.

Circle 27 on Reader Service Card (TOP: Valve Springs, Cylinder 19,

Starboard Main Engine. BOTTOM:

Airbox as viewed through Port, Cylinder 4,

Port Main Engine). The overall cleanliness of Sea Victory's port and starboard main engine and its excellent condition is appar- ent after running on Mobilgard 450 NC for eight months. The top decks were clean and free of deposits and the airbox sur- faces were clean, moist and easily wiped. http://www.coastalo.com

Circle 228 on Reader Service Card