Comparing: Renault Otsu vs. Renault NC-31

Developed from 1925 through 1928 in France as an upgraded modification of the Renault FT. The modernization project was finished and the vehicle saw mass production. In 1929, a total of 10 vehicles were purchased by Japan and were designated the Otsu-Gata Sensha (Tank B Model). The Japanese vehicles were slightly modernized and were widely used both in action and for training purposes.

The NC-2 project (commercial name NC-31) was a modification of the Renault FT-17 tank featuring a soft ride suspension and a Kegresse-Hinstin fanged rubber track. These features, along with an upgraded engine, gave an increased top speed of 16 km/h. A total of 15 vehicles of this type were exported to China.