Page 16: of Maritime Reporter Magazine (January 1996)

Antarctic Support Associates (ASA), under contract with the Na- tional Science Foundation (NSF), an independent agency of the

United States Government, will release a Request for Proposal around the 1 st of February 1996 for interested sources to provide an ice-strengthened ocean-going tanker to carry fuels to resupply

McMurdo Station, Antarctica. Three types of fuel are required: 1) 7,000,000 USG (est.) Turbine Fuel, Aviation Grade, Type AN-8,

NSN: 9130-01-373-0208, MIL-SPEC: MIL-T 83133D; 2) 1,000,000 USG Diesel Fuel Marine, (NATO F-76) Naval Distil- late, NSN: 9140-00-273-2377, MIL-SPEC: MIL-16884H; 3) 250,000 USG Gasoline Mid-Grade, Unleaded, (MUM), Volatility

Class D, NSN: 9130-01-272-0983, ASTM-D-4814. Tanker will be met at ice shelf by USCG Polar Class Ice-Breaker and escorted to McMurdo Station. Tanker is to have approximately 34' draft and be ABS Ice Class B-0. Delivery will be in January 1997, if decision is made to procure. Letters of Interest and qualification statements are required for inquiry. Such letters should contain proposed vessel (s) specifications, including ice class and society, capacities, and vessel particulars. Vessel owner/operators inter- ested in proposing to supply the stated cargo fuels, as well as the tanker, should so indicate their interest. All written correspon- dence shall be addressed to: Antarctic Support Associates; 61

Inverness Drive East, Suite 300; Englewood, Colorado 80112;

ATTN: Reginald Thomas; Manager, Contracts. Responses are due by 30 January 1996. No telephone calls.

Circle 202 on Reader Service Card

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Circle 231 on Reader Service Card

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HATCHES quick- open or bolt down 8"round to 33"x48"

We also specialize in POT HAULERS 10" and 12"

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Circle 220 on Reader Service Card rwF nM,

SNAME Ship Production

Symposium Set For San Diego

International Commercial Competitiveness in the Year 2000, Fleet Support & Maintenance

Widely regarded in the industry as "the" place to discuss ship production technology, the 1996 Ship Production Symposium and

Workshop is scheduled for February 14-16 in

San Diego. Dubbed "International Commercial

Competitiveness in the Year 2000, Fleet

Support and Maintenance," the event is spon- sored by the Society of Naval Architects and

Marine Engineers (SNAME) in conjunction with the National Shipbuilding Research

Program (NSRP). "The symposium is the only annual event in the United States to present shipbuilding tech- nologies through technical presentations and exhibits ranging from computer-aided design and robotics, to predictive maintenance, marine coatings and training," said Peter

Jaquith, conference committee chairman.

The Latest Technologies

The symposium targets executive manage- ment at shipbuilding and ship owning compa- nies, as well as ship conversion and mainte- nance personnel and technical management.

The three-day symposium offers a little bit of everything, including a CAD/CAM/CIM work- shop which is designed especially for engi- neers, designers and other production person- nel. The workshop is a function of the NSRP- sponsored project "Evaluate the Shipbuilding

CAD/CAM Systems." In the workshop, partic- ipants will be exposed to the strategies of com- panies that have changed both management and process cultures to remain competitive in what can best be described as a difficult com- mercial shipbuilding market. The workshop aims to help attendees gain an understanding of how some of the best shipyards in the world have gone about planning, developing and implementing system and process improve- ments to boost performance. The full sympo- sium, however, offers an array of seminar top- ics, including: Commercial Marketing (panel discussion); Design and Production Processes;

Commercial Maintenance and Repair; Navy

Maintenance and Repair; Maritech Options for the Future; The Reason for Robotization in

Shipbuilding; and Environmental Compliance in the 90s.

More Than A Conference

The conference is accompanied by an exhib- it, and over the 2.5 days of the symposium there will be approximately 40 to 50 exhibits for attendee inspection, including operating robotics and automatic manufacturing equip- ment. There is also a full schedule of after- hours and social functions scheduled, including a NASSCO shipyard tour and a cruise after the symposium.

For further information on attending the symposium, call (619) 535-0050.

M/V City of Tunis, one of four sister vessels equipped with three Wartsila 6L20 auxiliary engines.

Wartsila 20 Designed For Maximum Power, Minimum Wear

The first pilot installation for Wartsila Diesel's new

Wartsila 20 engine began in November 1993. It reportedly followed approximately 2,000 hours of exhaustive testing in Vaasa, Finland, of Wartsila's 6L20 test engine under high and frequent load chang- ing. The pilot installation comprised three six-cylinder

Wartsila 6L20 engines, installed at the Daewoo ship- yard in South Korea, as auxiliary generating sets on the MTV Kairo, one of five container vessels built for

German owners. In the two years that have since elapsed, more than 300 Wartsila 20 engines have reportedly been ordered. A milestone of 10,000 operat- ing hours will be reached this fall for two main engines installed on a tugboat in southeast Asia; several other engines have accumulated 5,000 or more operating hours. The Wartsila 20 engine — with a 200-mm cylinder bore, 280-mm stroke, BMEP of 24.6 - 22.5 bar, and an output per cylinder of 130 - 165 kW — is designed for marine duty as both an auxiliary and a main engine.

The cylinder liner of the engine was designed with an anti-polishing ring, mounted in the top of the cylinder liner above the TDC for the upper compression ring. This design facilitates the reduction of any wear or ovality of the cylinder liner because the carbon deposit build-up on the piston crown does not come in con- tact with the cylinder liner, instead causing wear on the anti-pol- ishing ring. As a result, the anti-polishing ring will reach the expected lifetime of 24,000 operating hours with the cylinder liner still within manufacturing tolerances.

The piston is of composite design, with steel crown and modular cast iron skirt. The Wartsila 20 is equipped with a starting air motor for all cylinder configurations, allowing for optimal cylinder head stiffness. Injection pump housing includes integral low-pres- sure fuel channels for maximum safety and access, as well as a guide block for the valve tappets.

For more information on Wartsila

Circle 40 on Reader Service Card

Maritime Reporter/Engineering News

View of engine room.