Number of major aircraft engines produced under license in Japan 2022, by model
As of December 31, 2022, the turboshaft engines T58-10/-140 were the aircraft engines most produced under license by the Japanese aircraft industry, adding up to 800 units since the first delivery. The contractor for these General Electric helicopter engines was IHI Corporation; they were mounted on the Sikorsky S-62 and Kawasaki V-107A (originally Boeing Vertol 107).