Abstract
In the present study, a new fast RORO ship of pentamaran type is developed and proposed. The resistance, stability and seakeeping performances of it as well as its capability in dead weight and deck space are examined with comparison with an existing conventional RORO ferry of monohull type. The results demonstrate that the proposed pentamaran has better performances than the monohull ferry and has reasonable dead weight and larger deck space. A feasibility study of the new ship in a short route in Seto-island sea is also carried out on the basis of economical evaluation. The results show that the pentamaran can be replaced by exsisting RoRo passenger ferries in the route from economical point of view
