This paper presents the results of open-water tests with a systematic series of contra-rotating propellers, consisting of a four bladed forward screw and a five bladed aft screw.

    Based on the open-water test results, contra-rotating propeller systems were designed for a tanker and a cargo liner. Comparative tests have been carried out with the tanker and the cargo liner both equipped with contra-rotating propellers and with a conventional screw. The propulsive efficiencies, the cavitation characteristics, the propeller induced vibratory forces and the stopping abilities are dealt with.


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    Title :

    Model tests on contra-rotating propellers1


    Contributors:

    Published in:

    Publication date :

    1968-12-01


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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