Voith Schneider Propellers for Third CMAL Hybrid Ferry

Maritime Activity Reports, Inc.

February 17, 2015

  • CMAL's MV Hallaig is already equipped with Voith Schneider Propellers. (Photo: Voith)
  • (Photo: Voith)
  • CMAL's MV Hallaig is already equipped with Voith Schneider Propellers. (Photo: Voith) CMAL's MV Hallaig is already equipped with Voith Schneider Propellers. (Photo: Voith)
  • (Photo: Voith) (Photo: Voith)
Scottish-owned Caledonian Maritime Assets Ltd (CMAL) has chosen Voith propulsion systems for its new hybrid ferry. Like its sister vessels, MV Hallaig and MV Lochinvar, the new hybrid ferry will be built by Ferguson Shipbuilders in Glasgow. CMAL relies on two VSP 16R5 EC/90-1 as well as two bow-tooth couplings and the Voith electronic control system.
 
The new ferry will use the same electronic control system already installed on the MV Hallaig. The control system consists of a modular hardware and software architecture and offers many control features and standardized interfaces, making it possible to actuate the two 375kW VSPs.
 
As is the case with the other two ferries in CMAL’s hybrid fleet, the new ferry combines a diesel-electric propulsion system with lithium ion batteries. To reduce the load on the diesel engine, the ferry’s two lithium batteries are charged overnight via a land cable. On the sister vessels, CMAL has already achieved savings of 38%.
 
The ferry will operate in Scottish waters characterized by strong currents. Many Scottish landings consist of concrete ramps where the vessels dock without being firmly moored. Accurate control and positioning as well as maximum maneuverability are imperative to guarantee safe operations when docking in rough seas, Voith said. To ensure that the two VSPs are protected when docking, they are arranged diagonally in recesses and not in a central position at the bow and in the stern as is normally the case.
 
The vessel is expected to enter into service in spring 2016. It measures 43.5 meters in length and 12.2 meters in breadth and is capable of accommodating approximately 150 passengers and 23 cars. The service speed of the hybrid ferry is nine knots.
 
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