"To the Chief of the Scientific-Technical Directorate of the GAU, comrade Zheleznyakov
February 10th, 1934
For the benefit of the 1st Department of the Scientific-Technical Directorate, I provide a list of armament necessary for tanks, armoured cars, railroad fighting vehicles, and APCs according to the Second Five Year Plan Tank Armament system.
- Main Tanks
- Reconnaissance tank. Armament: 1 machinegun
- Combined arms tank. Armament:
- 1 45 mm gun and 1 machinegun
- 2 machineguns and a flamethrower
- 1 76 mm gun and 1 machinegun
Tanks will be produced in all three variants. - Operational tank. Armament:
- 1 45 mm gun and 3 machineguns
- 1 76 mm gun and 3 machineguns
Tanks will be produced in both variants. - Tactical Reserve tank. Armament: 1 76 mm gun and 3 machineguns
- Powerful special purpose tank. Armament:
- 1 76 mm gun, 2 45 mm guns, 5 machineguns
- 1 152 mm gun, 1 45 mm gun, 6 machineguns
- Special tanks
- Advance chemical tank. Armament: 1 machinegun
- Combined arms chemical tank. Armament: 1 machinegun.