Hasegawa 51204 Kawasaki Ki-45Kai Koh Toryu Nick 5th Flight Regiment
The army ordered continued improvements such as switching to 805 kW (1,080 hp) Mitsubishi Ha-102 engines. This craft, designated Ki-45 Kai, was complete in September 1941 and was officially adopted for use by the army in February 1942 as the "Type 2 Two-Seat Fighter".