Kawasaki Ha40

Ha40
Preserved Daimler-Benz DB 601.
Type Piston V12 aircraft engine
National origin Japan
Manufacturer Kawasaki
First run 1930s
Major applications Kawasaki Ki-61
Developed from Daimler-Benz DB 601
DB 601A, partially sectioned (right side)
Ha40 at the National Museum and Art Gallery, Port Moresby.
Ha40 detail, National Museum and Art Gallery, Port Moresby.
Aichi Atsuta, a license-built DB 601 (left side)

The Kawasaki Ha40, also known as the Army Type 2 1,100 hp Liquid Cooled In-line and Ha-60, was a license-built Daimler-Benz DB 601Aa 12-cylinder liquid-cooled inverted-vee aircraft engine. The Imperial Japanese Army Air Service (IJAAS) selected the engine to power its Kawasaki Ki-61 fighter.