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MORE BC FERRIES SHIPS TO BE EQUIPPED WITH SCHOTTEL THRUSTERS

Monday, January 20, 2020 

German propulsion manufacturer Schottel has secured a further order from Canada's BC Ferries, this time to provide propulsion units for four electrically-powered 81m road ferry newbuilds, constructed by the Damen Shipyards group at its Galati yard in Romania.

Each of the four Island class vessels will be equipped with two high-efficiency Schottel Twin Propeller units. These vessels – built to Damen’s Road Ferry 8117 E3 design – will be capable of carrying up to 300 passengers and crew as well as 47 vehicles, and will provide inter-island services between Vancouver and Vancouver Island.

Capt Jamie Marshall, VP Business Development and Innovation BC Ferries, said: "We've had positive experiences with Schottel azimuth thrusters in our Salish Class ferries, and opted for the German manufacturer for our Island Class as well. The propulsion system is efficient, quiet and sustainable, and a good fit for our Island Class ferries."

The main propulsion for each ferry consists of a pair of electric motors – each rated 950 kW at 1,700 rpm and driving the Schottel STP 340 azimuthing thrusters. Provided with a propeller diameter of 1.85m, the STP enables a free-sailing speed of 14 knots.

Schottel says that its STP thrusters are suited to vessels requiring low levels off noise and vibration, which are constrained by limited installation space, draught or propeller clearance. By sharing the load between two propellers, the risk of cavitation is minimised and tip clearance is increased. Both of these characteristics, in turn, lead to lower underwater radiated noise and vibration levels. The concept improves the overall efficiency of the propulsion system and reduces fuel consumption compared to single propellers.

BC Ferries provides year-round vehicle and passenger service on 25 routes to 47 terminals, with a fleet of 37 vessels.

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