DOI: 10.3233/isp-2011-0070 ISSN: 0020-868X

Analysis of inherent course stability of a high-speed catamaran in deep and shallow water

Evgeni Milanov, Zlatko Zlatev, Valya Chotukova, Frederick Stern

The paper treats the important problem of prediction of ship's inherent course stability, based on a large amount of model experimental data for a well-known bare hull shape – the Delft catamaran 372, covering a comparatively wide range of Froude numbers and depth to draught ratios. The analysis is based on a linearized maneuvering model.

As a result, dependency of the stability criterion on Froude number and the water depth to draught ratio is established and clearly demonstrated for this particular ship case.

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