Design system for optimum contra-rotating propellers

@article{Sasaki1996DesignSF,
  title={Design system for optimum contra-rotating propellers},
  author={Noriyuki Sasaki and Mitsunori Murakami and Kazuo Nozawa and S. Soejima and Akira Shiraki and Takeshi Aono and Tomeo Fujimoto and Isao Funeno and Norio Ishii and H. Onogi},
  journal={Journal of Marine Science and Technology},
  year={1996},
  volume={3},
  pages={3-21}
}
A new type of contrarotating propeller (CRP) system has been developed through the cooperative research work of five shipbuilding companies in Japan (Hitachi Zosen Corporation; Kawasaki Heavy Industries, Ltd.; Mitsui Engineering and Shipbuilding Co., Ltd.; NKK Corporation; and Sumitomo Heavy Industries, Ltd.). This paper describes a design system for an optimum CRP, which is one of the numerous outcomes of this work. The optimum design system is composed of three theoretical programs: (1) the… 

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Contrarotating Propellers (CRP) are one of the most attractive propulsion devices, which can be expected to improve considerably the propulsive efficiency. Although the major problem appears to be

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