Creating a self-propelled high-capacity 406-mm cannon began in 1954 g. The gun was intended to destroy major military and industrial targets of the enemy with the help of conventional and nuclear missiles. During the design of the system was designated 2A3 "capacitor-21P". Special vosmikatkovaya undercarriage gun was created on the basis of the T-10M. Virtually unchanged from the design of the tank was taken and powerplant.
Large recoil when shooting 2A3 "Capacitor-2P" partially quenched Hydromount. Artillery of the SM-54 was developed in CDB-34 under the direction and. AND. Ivanova. gun prototype was assembled at the Kirov plant. weapons testing began in 1957 g. Cannon in a vertical plane is induced by hydraulic drives, and horizontal - by rotating the whole plant. On testing revealed a number of shortcomings artillery system, including gun recoil back a few meters, equipment and other destruction. After each test rig being finalized, and the detected shortcomings were eliminated.
Four self-propelled guns was built 2AZ "capacitor-2P". But serial production has not followed, It began to emerge as a more effective missile systems.
Performance characteristics 2A3 "capacitor-2P"
| Crew | 7 people. |
| Weight | 64 t |
| Length | 20 m |
| Height | 5,75 m |
| housing width | 3,80 m |
| Clearance | 460 mm |
| Maximum road speed | 65 kmh |
| Cruising on the highway | 200 km |
| weaponry | 406-mm gun CM-54 |
| firing range | 25,6 km |
| engine's type | In-12-6B |
| Engine power | 750 HP. |
Photos 2A3 "capacitor-2P" of the Central Museum of Armed Forces
