In this book the authors have endeavored to remedy the notable lack of comprehensive coverage. The development of all the many engines produced by Japanese aero-engine manufacturing companies from 1912 to 1945 is explored in detail, including a full explanation of the different systems used to identify them. Furthermore, the developments are related to the aircraft in which the various engines were used, including prototypes, flying test-beds, and changes in the make or type of engine during an aircraft's operational service. In other words aircraft evolution in Japan is viewed in snapshots...