Historical changes of Japanese warships’ design

Abstract

It is important to know historical changes of some parameters for ship design in order to understand what naval architects have been required with the time. Yamaguchi et al. discussed recently the historical changes of merchant ship’s propulsive efficiency in detail and showed the progress of performance. This report shows the investigation of the historical changes of the naval ships in Japan. The parameters dealing with this report are stability, weight, volume and propulsive efficiency. As the result of this report, it is found that the change of propulsive performance is small, and the change of stability and ship’s density shows the design concept varies gradually from weight design to space design.