Ki-15-II (Army Type 97 Command Reconnaissance Model 2) : Improved Army production version with smaller, more powerful engine 14-cylinder Mitsubishi Ha-25-I (Army Type 99 Model 1), with 850 hp at take-off, 900 hp at 11,810 ft. This gave an increased maximum speed of 317 mph at 14,205 ft (510 km/h at 4,300 m), roughly comparable with fighters like Hawker Hurricane or the Nakajima Ki-43 Hayabusa.
The improved Army production version of the Ki-15-II (Army Type 97 Command Reconnaissance Model 2) utilized a smaller and more powerful engine, Mitsubishi Ha-25-I (Army Type 99 Model 1), with take-off power at 850 hp and 900 hp at an altitude of 11,810 ft. This upgrade led to a maximum speed of 317 mph at 14,205 ft (510 km/h at 4,300 m), comparable to fighters such as the Hawker Hurricane or the Nakajima Ki-43 Hayabusa.