Hamayu is a ferry built by Mitsubishi Shipbuilding Co., Ltd. It has a gross tonnage of 15,515 t, an overall length of 222.5 m and a breadth of 25.0 m. Service speed is 28.3 knots.BuilderMitsubishi Shipbuilding Co., Ltd.Technical specificationsGross Tonnage: 15,515 tLength overall: 222.5 mBreadth: 25.0 mSpeed (service): 28.3 knots