Rolls-Royce to power new Mols-Linien passenger ferry


Rolls-Royce has been selected to provide the main propellers and a propulsion control system to a new passenger ferry operated by Denmark's Mols-Linien. 

As part of the deal, Rolls-Royce will deliver two units of Promas systems, gearboxes, steering gears, two tunnel thrusters and a control system.

The Promas system combines controllable pitch propeller, a propeller hub cap, a rudder with bulb and a twisted leading edge to form one hydrodynamically optimised unit.

Rolls-Royce products director Gary Nutter said: “By adapting the propeller and rudder into one propulsive unit, Promas offers increased propulsive efficiency and improved manoeuvrability.

“It is chosen by both conventional single and twin screw ships, such as the passenger ferry to be constructed for Mols-Linien.”

In addition, the new deal includes cavitation tests of the Promas, which will delivered to Mols-Linien, at Rolls-Royce Hydrodynamic Research Centre (HRC) in Kristinehamn, Sweden.

"By adapting the propeller and rudder into one propulsive unit, Promas offers increased propulsive efficiency and improved manoeuvrability."

The tests will be conducted before manufacturing the Promas system.

Rolls-Royce HRC manager Göran Grunditz said: “Cavitation tests are digitally documented and log efficiency, cavitation performance and risk of cavitation erosion on the equipment.

“The tests provide us, the yard and the owner with useful data related to estimated future fuel consumption and can also help the owner when planning for future services intervals.”

To be built by Rauma Marine Constructions yard in Finland, the new Mols-Linien ferry is expected to operate between mainland Denmark and the island of Bornholm, a Danish island in the Baltic Sea.

Featuring two decks and 1,500m of lane space, the ferry will be able to accommodate 600 passengers and is scheduled to enter service by 2018.


Image: Rolls-Royce will provide the main propellers and propulsion control system to a new passenger ferry for Danish ferry operator Mols-Linien. Photo: courtesy of Rolls-Royce plc.