1969 Volume 41 Pages 131-139
Recently, we have already some equipments which are consisted of analogue and digital computing devices, such as cargo handling and navigation system. And now, a tendency to promote the computerization of merchant ships has been rapidly arised around the world. We have studied on collision avoidance calculation in this paper, which must be considered in computer controled ships. As a result, we have got a guidance of further investigations from this study.