Propeller chart analysis has been substantiated by full-scale trials on existing vessels, in both free-running and towing conditions; from these trials wake fractions and thrust deduction factors were obtained; over range of propeller diameters considered there is continuous economic improvement as diameter increases; use of propellers of maximum size would achieve net annual saving, taking account of capital depreciation, between 10% and 15% of annual fuel costs, etc; it is suggested significance of study is that improvement has been expressed in economic terms, leading to design recommendations. (02279)


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    Titel :

    Controllable pitch propellers in large stern trawlers


    Weitere Titelangaben:

    Trans Inst Marine Eng


    Beteiligte:
    Bennett, R. (Autor:in) / Chaplin, P.D. (Autor:in) / Kerr, N.M. (Autor:in)


    Erscheinungsdatum :

    1968


    Format / Umfang :

    24 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Large controllable-pitch propellers

    Engineering Index Backfile | 1940


    Propellers for tugs and trawlers

    Benson, F.W. | Engineering Index Backfile | 1938


    Controllable-pitch propellers

    Rupp, L.A. | Engineering Index Backfile | 1948


    Controllable pitch propellers

    Engineering Index Backfile | 1950


    Propellers for tugs and trawlers

    Benson, F.W. | Engineering Index Backfile | 1938