ZSU-57-2

   The ZSU-57-2 self-propelled anti-aircraft gun was developed since late 40s. It entered service with the Soviet Army and production commenced in 1956. It was later replaced by a much more effective ZSU-23-4 Shilka. Despite its age the ZSU-57-2 is still in service with a number of countries.

   This SPAAG is fitted with two 57-mm S-68 guns, similar to the S-60 single towed anti-aircraft gun. These guns are air-cooled, so after firing of 50 - 60 rounds in intensive mode guns have to cool down. These guns are fed from magazines. Each magazine holds four rounds. The ZSU-57-2 fires fragmentation-tracers against air targets and armor-piercing tracers against ground targets. Direct hit of a single 57-mm round caused destruction of a fighter or attack aircraft.

   The ZSU-57-2 has got no radar and uses open sights instead. It also cannot be used successfully at night. Optical sight is used to engage ground targets.

   This SPAAG has a very thin steel armor (maximum thickness 15 mm). Lack of the roof makes it defenseless against attacks from above. The ZSU-57-2 also lacks NBC protection system.

   Vehicle has a crew of six, including commander, gunner, assisting gunner, two loaders and driver.

   The ZSU-57-2 SPAAG chassis uses many automotive components of the T-54 medium tank. Vehicle is powered by the V-54 diesel engine, developing 520 horsepower.

Variants

   Type 80 SPAAG, Chinese copy of the ZSU-57-2, based on the Type 69 medium tank chassis.