Study on the Outer Keel of the Small Ocean-Going Fishing Ship

The comfort on the fishing ship is paid more and more attention. This paper studies the outer keel structure type of small ocean-going squid fishing ships. By using 3-D potential theory, the wave-induced motion’s response is calculated using the scatter diagram of working areas, finally the calculation values have been compared with the non-outer keel ones. It provided the resonable basis of design and application of the outer keel.