Wärtsilä Corporation has received orders from the Polish shipbuilder Stocznia Szczecinska Nowa for the ship power plants for four new 12,800 tdw multi-purpose Sto-Ro cargo vessels contracted by the Dutch owner Spliethoff’s Bevrachtingskantoor BV.
For each of the four vessels, Wärtsilä will deliver two Wärtsilä 12V46 main engines, two Lips controllable-pitch propellers including Unnet aft seal protection system, two Lips Efficiency Rudders and two Wärtsilä 8L20 diesel generating sets. The Wärtsilä 12V46 main engines have a combined output of 25,200 kW, and the generatings sets a combined electrical output of 2720 kW.
When delivered in 2006, the vessels will enter Transfennica services which operates Ro-Ro services between Finland and Estonia, Sweden, Germany, Belgium and the UK.
Although designed primarily for carrying forest products and paper, the vessels will be very flexible in their cargo-carrying capacity. Within an overall length of about 205 m, they will have a roll-on/roll-off (Ro-Ro) capacity of 2800 lane-metres and a container capacity of 660 TEU. They will be able to carry a diverse mixture of road trailers, commercial vehicles, MAFI trailers, paper cassettes and 20- to 45-foot containers. Access to the ships’ four decks will be through a wide stern door, with fixed ramps leading to the upper decks and the hold. They will also have provision for IMO Classes 1 to 8 dangerous cargoes. The vessels will be built to Finnish Ice Class 1A Super.
The Wärtsilä ship power plant will give the vessels a service speed of 22 knots. It is designed both for high power to achieve the desired ship speed and for fuel economy. An important contribution to fuel economy will come from the choice of Lips Efficiency Rudders. The improved hydrodynamic performance of Efficiency Rudders not only gives better propulsive efficiency but also allows greater freedom in ship design for lower noise transmission into the hull and greater strength in the rudder assembly.
Marit Holmlund-Sund
Public Relations Manager, Ship Power
Wärtsilä Corporation
Direct tel: +358 10 709 1439
Direct fax: +358 10 709 1425
e-mail: marit.holmlund-sund@wartsila.com
Internet: www.wartsila.com
