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Feathered propellers for flexibility

Tobias Huuva of Berg Propulsion explains how the flexibility and efficiency of twin- and multi-screw ships can be enhanced by feathering propellers.

Many ships are today equipped with a single screw propulsion system, but with stronger demand for increased efficiency, flexibility and redundancy, designers and owners are looking towards multi screw propulsion systems. With a multi-, or usually, twin screw propulsion system the propulsion efficiency can improve, particularly with optimised hull design featuring aft body skegs. The twin skeg is used to direct the boundary layer from the hull into the propeller

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