
The ZSU-23-4 outclassed all NATO anti-aircraft guns at the time, and it is still regarded as posing a major threat for low-flying fixed-wing aircraft and helicopters.Īll patent print and illustration pages are meticulously restored and digitally refined to remove as many flaws as possible while maintaining the integrity of the original document. It is also referred to by its nickname of "Zeus". Afghan soldiers nicknamed it the "sewing machine" due to the sound of firing guns. It is named after the Shilka River in Russia.

The acronym "ZSU" stands for Zenitnaya Samokhodnaya Ustanovka (Russian: Зенитная Самоходная Установка), meaning "anti-aircraft self-propelled mount" the "23" signifies the bore diameter in millimeters the "4" signifies the number of gun barrels.
