Hitachi Hatsukaze

The Hitachi Hatsukaze also known as the Hitachi model GK4, was Hitachi's fourth design in a series of aircraft engines built in Japan prior to and during World War II. The original Hatsukaze was a license-built Hirth HM 504. Hatsukazi engines were air-cooled, four-cylinder, inverted inline engines developing around 82 kW (110 hp).