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Tuesday, April 7, 2020 

The Schottel Rudder EcoPeller (SRE) is set to be installed in a retrofit project for the first time, with two four-bladed EcoPellers type SRE 340 L CP with an input power of 750kW each installed in a double-ended ferry for Norwegian operator Torghatten Trafikkselskap.

Gunnar Heringbotn, Technical Manager, Torghatten Trafikkselskap, said: “We have already equipped several of our ferries with Schottel propellers. For the electrification of the Torghatten, we have opted for the SRE, as it optimally meets our requirements and supports us on our way to an eco-friendly future. Thanks to the tailor-made modernisation concept, downtimes can be kept as short as possible.”

Since it is possible to integrate the Schottel solution into the existing steel structure of the former propulsion system, no hull changes or major steel work will be necessary. The work can be carried out by a local shipyard – thus reducing installation efforts and shortening downtime tremendously.

The 70m long and 14.7m wide Torghatten serves the route between Horn and Anddalsvåg. It is capable of carrying up to 199 passengers and 60 cars. The EcoPellers will be driven by electric motors. In operating mode, the required power will be supplied by battery packs installed on board. These will be recharged from the land grid during the stays on the quay.

To be environmentally compliant, the propulsion system of the Norwegian ferry will be equipped with the patented and DNV-GL type-approved Schottel Leacon sealing system. Through the use of separate seals on the seawater side and on the gearbox side, the sealing system ensures that, in case of leakage, seawater entering the system or gear oil escaping from the system are collected in an intermediate chamber. This prevents water from entering the gearbox and, of even greater importance, oil from escaping into the seawater.

Covering the range from 500kW to 5,000kW, Schottel EcoPellers are designed for high efficiency and improved course keeping stability. The ecologically clean propulsion system has been primarily developed for open seas and coastal operating conditions.

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