Cartwright, R.A., Wilson, P.A., Molland, A.F. and Taunton, D.J.
A low wash design for a river patrol craft with minimal environmental impact.
International Journal of Maritime Engineering, 150, (A2), .
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A description is given of the development of a low wash design for a river patrol craft. The new design was to replace an existing vessel which creates substantial wave wash at normal operating speeds and high speeds. In order to assess the potential contending designs a series of computational and model scale tests were carried out on a monohull and two catamaran designs. This entailed measurements of resistance, trim and wave wash heights. Near full scale tests were carried out on the three hull forms and wash measurements were made. Broad agreement between the computational, model and near full scale wave wash prediction was achieved. The results of the investigation were used to develop a final design which was of catamaran form. Construction of the vessel is described including materials suggestion and the build processes, with the aim of minimum impact upon the environment.
Overall, the research, development and design programme has added substantially to the potential for improved safety in inland waterway and inshore patrol and rescue craft, while also providing benefits to both the riverbank, atmospheric and water environments.
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