The TB-3 became operational in 1931.
Nine TB-3s were used in goodwill flights in the summer of 1935.
A Yumashev, in September 1936, set an altitude record of reaching 8,116 m with a load of five tons.
An ANT-6 (SSSR-N169) flew on the last Polar expedition before the war in 1941.
Soviet Air Force
The VVS (Soviet Air Force) first received the TB-3 in 1932.
The TB-3 was the first Soviet plane to drop paratroopers.
The TB-3 saw combat against the Japanese during the Mongolian / Manchurian battles of 1938 - 1939.
During 1939 - 1949 the TB-3 was used against Finland.
Great Patriotic War
When Germany invaded the Soviet Union in June 1941 most of the TB-3s had been converted into G-2 transports. However in the early months some G-2s were used as night bombers. These later went back to being used as transports and glider tugs. Some were capable of carrying light tanks or trucks between the main undercarriage legs.