Page 92: of Maritime Reporter Magazine (August 1994)

PROPULSION UPDATE

MAN B&W

Results Are In On Sea-Land Genset Retrofits

Operational feedback and 20,000- hour inspection reportedly re-con- firm benefits of MAN B&W Holeby

L28/32H genset engines retrofitted in Sea-Land Service containerships.

The re-engineering project was completed in mid-1991 and resulted in the rejuvenation of the auxiliary power generating plant of Sea-Land

Service Inc.'s 12 Atlantic class containerships.

The contract signed by the major

U.S. operator and MAN B&W Die- sel AS, Holeby, Denmark, was im- portant not just because of its scale — it called for the swift supply of 36 six-cylinder L28/32H engines—but for the requirement to execute the retrofits at sea without disrupting the fleet's normal demanding liner schedules

The 4,i40-TEU ships, built as the Econoship series by Daewoo in 1984-85 for U.S. Lines, were ac- quired in the late 1980s by Sea-

Land Service.

The owner's desire to improve operational and maintenance costs for the series influenced the deci- sion to replace the three original auxiliary power shipsets with a unifuel package burning the same

IF 380 cSt heavy fuel bunkers as the low-speed main engine over the en- tire engine range: from no load to full-load, including start/stop and standby modes.

The replacement 6L28/32H en- gines, each 1,075 kW at 720 rpm, were supplied on a baseframe for coupling to the existing Fuji alterna- tor. MAN B&W Holeby also acted as project manager for the re-engineer- ing program.

The investment cost of the project was to be underwritten by the better fuel economy of the new engines, their 25,000-hour intervals between major overhauls and extended com- ponents durability, compared with the original shipsets.

Strengthening Of The MC

Engine Program

In other MAN B&W news, a longer-stroke and lower-speed ver- sion of the 420 mm bore MAN B&W

Diesel's MC two-stroke engine has been launched to offer even higher propulsion plant efficiency for small to medium-sized ships.

The new S42 MC series is now designed to provide a simple and reliable direct coupled engine solu- tion for projects requiring outputs of 3,800 -16,700 bhp with propeller speeds between 115 and 136 rpm.

The 1,764 mm stroke of the

S42MC yields a bore/stroke ratio of 4.2:1 and a nominal speed of 136 rpm.

The layout flexibility enables op- erators to select maximum continu- ous service speeds between 115 and 136 rpm for optimum propeller effi- ciency. An output ofl,025kW( 1,395 bhp) per cylinder is delivered at 136 rpm.

The S42MC series embraces 4-12 cylinder models covering an output band from 1,800 -12,300 kW (3,800 - 16,700 bhp). A specific fuel con- sumption of 174 g/kWh (128 g/bhph) contributes to the low overall run- ning costs associated with a direct- coupled two-stroke engine plant.

For more information on MAN B&W

Circle 132 on Reader Service Card $13.5M Tug Building Contract Coming

Soon: C.H. Cates & Sons Ltd. of

North Vancouver will add two new 5,600-hp Z-Peller ship berthing tugs, scheduled to be in service in early 1995. Naval architects Robert Allan

Ltd. of Vancouver are designing the vessels, and the shipbuilding con- tract valued at $13.5 million is ex- pected to be awarded shortly.

For more information

Circle 10 on Reader Service Card

Austal Wins Approx. $ 15 Million In Ferry

Contracts: Austal Ships sold a 141-ft. (43-m) high-speed passenger vessel to Japanese operator Diamond Ferry for approximately $7.7 million. Main propulsion is quadruple MTU diesel engines driving KaMeWa waterjets through ZF gearboxes. Austal Ships also won a $7.2 million contract for a 131-ft. (40-m), Textron Lycoming gas turbine-powered passenger cata- maran from the Zhong Shan - Hong

Kong Passenger Shipping Co. Ltd.

For more information on Austal Ships

Circle 140 on Reader Service Card

Kvaerner To Supply Ships Building At

Holland Yard: Kvaerner Ships Equip- ment has secured the complete turn- key contracts for three large ferries building in Holland for Irish and

Chinese orders. The newbuildings will be constructed in Van der

Giessen de Noord, The Netherlands.

For more information on

Kvaerner Ships Equipment

Circle 139 on Reader Service Card

THE DEPARTMENT OF DEFENSE

OFFERS FOR SALE

HOVERCRAFT y-jWwu »i«liimTH« »minrw iuti^—7

BID OPENING: AUGUST 24, 1994

SALE NUMBER: 31-4423

INSPECTION BEGINS: AUGUST 3, 1994

UP TO 26 EACH - 30 TON LACV-30

FOR CATALOG AND MORE INFORMATION CONTACT:

DEFENSE REUTILIZATION AND MARKETING SERVICE 2163 AIRWAYS BLVD., MEMPHIS, TN 38114-5211

LINDA COX (901) 775-4973 OR FAX: (901) 775-6915 74

Circle 268 on Reader Service Card

Maritime Reporter/Engineering News