Page 29: of Maritime Reporter Magazine (January 1998)

(Continued from page 25) important and complex marine projects Siemens has ever had.

The reliability criteria was the most challenging part," a senti- ment echoed by many others involved in the project. He credits a precisely detailed bid specifica- tion for producing a vessel of exact- ing standards. Step-by-step cus- tomer approval of technical docu- mentation, engineering drawings and software programming, as well as on-site monitoring of all factory tests headed off some of the standard problems that tradition- ally crop up during the construc- tion and initial operating phases of new vessels. Additionally, dock and sea trial activities have been conducted by Ferry System repre- sentatives. This committed involvement in all facets of design, construction and testing by Ferry

System engineers and operators has resulted in a vessel with far fewer "bugs" than most new boats, according to those overseeing the project.

Lori Miller, spokeswoman for

Kato Engineering, said the compa- ny was "... honored to be given a chance to be part of the project."

Siemens selected Kato's water- cooled, 3,000 kW alternators over their own, in-house product, in part to honor the Ferry System's desire to retain a high percentage of U.S. content while still main- taining Siemens exacting quality standards.

Proven reliabilty and economic service were the reasons why

Mike Stevens and John Wilkie of Valley Detroit Diesel feel their

Tacoma Main Particulars

Washington State Ferries with Philip F. Spaulding, Assoc

Builder Todd Pacific Shipyards, Seattle, Washington

Type Double-ended car/passenger ferry

Length, o.o 460.2 ft. (140.3 m)

Breadth 90 ft. (27.4 m)

Draft 17.6 ft. (5.4 m)

Full load displacement 5,690 tons

Capacity 2,500 passengers/218 vehicles

Main engines(4) General Motors, EMD 16-710G7A rated 4,000 BPH each at 900 rpm

Total hp 16,000 BHP

Main alternators (4) Kato Engineering -

Reliance Electric rated 4,160 V AC, 3,000 kW at 900 rpm

Propulsion (4) AC Drive Motors, Siemens Dynamowerks Division AC

Synchronous TEWAC - Type 1DQ rated 6,000 HP each, 1,850 volts at 215 rpm

Speed, service 18 knots

Speed, max 23 knots

General Motors EMD 16-710G7B diesels were selected as the main engines for the Jumbo Mark lis.

Their product has been an integral part of Washington State Ferry vessels for many years beginning in 1967 with the Super Class ves- sels where the original EMD engines are still in place, having logged more than 150,000 service hours per engine. The 710 model is their latest release, featuring greater hp, improved fuel economy, reduced emissions and reduced lube oil consumption. Custom- designed skid mounts on the engines help reduce noise transfer from the engines to the hull. Noise reduction for the comfort and health of passengers and crew was one of the many objectives consid- ered when designing the engineer- ing spaces.

The uniqueness of the ship has not escaped notice in the industry.

Representatives from a

German/Danish consortium toured the vessel and borrowed some design concepts.

NASSCO recently met with

Siemens representatives exploring the possibility of using a similar cycloconverter design on their

BRLTIMORE MARINE INDUSTRIES. INC

The management and skilled workforce of

BALTIMORE MARINE INDUSTRIES, INC. are pleased to announce that, effective October 1,1997, our company began operations at the former

BethShip, Sparrows Point Yard facility.

The organization and facilities at

BALTIMORE MARINE INDUSTRIES, INC. have remained intact. We will continue to serve the marine and heavy industries with unsurpassed repair, manufacturing and conversion services at one of the largest and, best equipment facilities on the U.S. east coast.

BALTIMORE MARINE INDUSTRIES, INC. is dedicated to becoming your preferred shipyard and manufacturing facility. Our goal is to win your repeat business.

To discuss your next project or to learn more about our new company:

PLEASE CALL (410) 388-7701 OR FAX (410) 388-6687.

BRLTIMORE MRRINE INDUSTRIES. INC.

ISO 9002 CERTIFIED formerly

BethShip

Sparrows Point Yard

Your Shipyard for the New Millennium 600 Shipyard Road Baltimore, Maryland, USA 21219-2599 Tel (410)388-4630 Fax (410)388-6687

January, 1998 Circle 204 on Reader Service Card 29