T-30A

The T-30A was one of two prototypes (the other being the T-30B) of a new light tank to replace the obsolete T-38 Amphibious Light Tank.

The T-30A prototype began production as the T-40 in 1940. It also led to the T-40S (sukhoputniy, "dry-land" version), a heavier tank prototype which was considered too complex to manufacture.