The trend of ship designs toward high speed and power has led to increasing propulsive difficulties due to the problems of cavitation and propeller-induced vibration. Consequently, in the design of stern arrangement, considerations must be focused on these problems in addition to propulsive efficiency. The report deals with the factors that influence the hull-propeller interaction problem. It discusses the advantages and disadvantages of single-screw and twin-screw stern arrangements presently used. A new twin-screw arrangement is described. In this stern arrangement the two propellers are mounted close to the ship centerline with overlapping propeller fields. The propulsive efficiency, cavitation, and vibration qualities of the new arrangement are discussed. Preliminary model tests with the new stern arrangement are presented and considerations to be taken in the design are mentioned. (Author)


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    Title :

    A Proposed New Stern Arrangement


    Contributors:

    Publication date :

    1967


    Size :

    31 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Proposed new stern arrangement

    Pien, P.C. / Strom-Tejsen, J. | Engineering Index Backfile | 1967


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