A fast ferry equipped with the world's first hybrid CRP-POD propulsion system having the same effects as contra-rotating propellers (CRP) has been developed by combining an electric pod propulsion unit and conventional diesel propulsion system. With this system, energy is saved by more than 13% as compared with the conventional twin shafts and propellers system, contributing to a reduction of operation costs and of CO₂ emission. Two ferries, named HAMANASU and AKASHIA, adopting this system were delivered to Shin Nihonkai Ferry Co., Ltd. At the end of June 2004. Excellent propulsion performance of the hybrid CRP-POD system was confirmed not only by the trial Maximum speed of 32.04 knots (59.3 km/h) but also by the vessels' operational record. They have been in commercial operation between Maizuru and Otaru since July 2004, and the previous one-way cruising time of 29 hours has been shortened to 20 hours. They are two of the fastest ro-pax ferries in the world.