Ferry operations, like other sectors of shipping, are under increasing pressure to reduce greenhouse gas emissions. Simultaneously, high fuel prices necessitate a clear reduction in fuel consumption. In recent years, Wartsila has proposed a number of innovative propulsion concepts for RoPax (Roll-on/Roll-Off Passenger) ferries aimed at lowering fuel consumption and improving operating efficiency. These include, Podded Contrating Rotating Propellers (CRP's), Wing Pods and Wing Thrusters. These all have one important feature in common: they depart from the traditional twin shaft line setup, and instead use a propeller mounted on the center line skeg combined with either one or two azimuthing propulsors.
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