Page 94: of Maritime Reporter Magazine (June 1998)

mASNiaMBSe Leading the world in Davit Technology 68 Maritime Reporter/Engineering News ing Hansa, which had been char- tered in from Germany for the past few years. The FMA operate a fleet of nine icebreakers, with the expectation that the two oldest vessels in the fleet, Voima, which was built in 1954 and modernized in 1979, and Apu (1970), will be replaced during the early part of the next century. Up to 80 percent of the Finnish export/import trade uses sea ports and 50 percent of this total is during the winter months. Trade has increased over the past few years, 23,000 ship calls were registered in 1997 com- pared with 19,000 during 1986.

Main propulsion

The six Caterpillar 'engine-gen- erator-engine' packages that are providing diesel electric power for the Botnica, are a key feature of the new concept vessel. Six pack- ages of twin Caterpillar V12, four stroke, 51.8 liter 3512B electronic engines connected to each end of an ABB generator that powers a

Megastar Controlled Azipod Drive system, provide a 12 engine (six generator) diesel electric package that gives the new concept vessel some 10MW of usable power for propulsion and an all year round deployment potential in what is the first marine application in the world for this kind of engine gen- erator system.

The power package is part of a revolutionary concept designed by

Circle 341 on Reader Service Card

SHIP & BOATBUILDING TECHNOLOGY

A multi-purpose ice-breaker from Aker Finnyards

Caterpillar 3512B units, giving a total output for the 12 engines of 15 MW, con- nected to six

ABB genera- tors driving two 5 MW

Azipod thrusters.

The vessel will be utilized by

Norway's NSND Offshore for the summer months under a seven- year charter, which has options for extensions. This year it will oper- ate under a contract with Saga

Petroleum on well-intervention duties on the Vigdis Field in the

Norwegian sector of the North Sea and a 10 day research contract in the Voring Sea, which was recent- ly opened in the 15th round of

Norwegian licenses.

For the winter season Botnica will operate as an icebreaker in the southern Finnish area, replac-

The third in a series of multi- purpose icebreakers, the 2,850- dwt Botnica, has been delivered by

Finland's Aker Finnyards, Rauma to the Finnish Maritime

Administration (FMA), after being built in a record time of just 13 months.

The main difference between

Botnica and its two predecessors,

Fennica and Nordica, is its propul- sion method.

Both the previous ships used

Wartsila medium speed diesels as the main propulsion plant. The

FMA decided on a diesel electric plant for the Botnica, which com- prises six packages of twin gSs, mm

Since the turn of the century, Welin Lambie has remained synonymous with innovative davit systems for the ever changing, marine, offshore and military markets.

The demands from individual customers has seen the development of sophisticated davit systems with low weight, electronic constant tension, EMC compatibility and, where applicable, shock tested to military standards.

Whether the requirement is for conventional davits or purpose built systems, Welin Lambie will re, at the forefront of davit technology.

Welin Lambie N.A. Inc. 18 Ridgecrest Drive, Bridgewater,

Nova Scotia, Canada B4V 3V8

Telephone: (902) 543 4337 Telefax: (902) 543 9787

Email: [email protected]

Internet: http://www.welin-lambie.co.uk

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