Developed in 1928 by J. V. Carden and V. Loyd. The vehicle never entered service in Great Britain. However, it was exported to other countries, including China. In 1937, twenty vehicles of this type fought against Japanese troops at Shanghai. Soviet Vickers-based T-26 vehicles were also exported to China, and 82 vehicles of that type were deployed in South China and Birma in 1941–1942.
Characteristics are specified for a vehicle with crew members trained to 100%.