This hydrodynamic body is welded to rudder or to main propeller axis; it transfers part of rotational momentum of wake into axial momentum thereby reduces cone vortex and increases overall thrust of propulsive system; theory and design of device; trial test arrangement and results obtained on operating ships; effect of device on propeller noise, and on intensity and persistence of wakes.


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    Title :

    Costa propulsion bulb


    Additional title:

    Il bulbo propulsore Costa


    Contributors:
    Costa, O.G. (author)

    Published in:

    Publication date :

    1963


    Size :

    8 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Italian




    Costa propulsion bulb

    Greger, O. | Engineering Index Backfile | 1959


    Costa propulsion bulb

    Engineering Index Backfile | 1953


    Testing Costa propulsion bulb with view to its use on modern ships

    Greger, O. | Engineering Index Backfile | 1961