Study on the maneuverability of a large vessel installed with a mariner type Super VecTwin rudder


The suitability of the Mariner type Super VecTwin rudder (hereinafter, the MSV rudder) for a large vessel is assessed in this article. Several experiments in a maneuvering pond were carried out and their results analyzed and summarized. Free-running tests such as turning, zigzag, and stopping tests were carried out with a 4-m free-running model of a very large crude carrier (VLCC) ship with the MSV rudder and the Mariner rudder. The results were compared to validate the maneuverability of a VLCC-sized a ship installed with the MSV rudder. A mathematical model of an MSV rudder is proposed for maneuvering simulation of a large vessel. To develop a maneuvering simulation for the model ship that was used in the free-running tests, hydrodynamic coefficients were estimated based on Kijima's regression formula. The coefficients of interaction between the hull and rudder (t R , a H , x H ) were obtained from a self-propulsion test in a towing tank. The complicated flow around the rudders is simplified to model the flow speed around the rudders. This simplified flow speed is utilized to compare the time histories of the free-running tests with the simulations. The mathematical model of the MSV rudder was further improved using the results of this comparison.

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Correspondence to Donghoon Kang.

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Hasegawa, K., Kang, D., Sano, M. et al. Study on the maneuverability of a large vessel installed with a mariner type Super VecTwin rudder. J Mar Sci Technol 11, 88–99 (2006).

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Key words

  • Mariner type Super VecTwin rudder
  • Mathematical model
  • Maneuverability
  • Free-running test