Soviet AT-1 Self-Propelled Gun

Origins: The AT-1, also known as the Artillery Tank 1, was developed in the early 1930s as part of the Soviet Union's efforts to create a self-propelled artillery platform. The design was initiated at the Kirov Plant No. 185 in Leningrad, with the first prototypes completed in 1935. Chassis and Armament: The AT-1 was built on the chassis of the T-26 light tank, which was a widely used Soviet tank during the interwar period. It was armed with a 76.2 mm PS-3 tank gun, capable of firing shells from both regimental and divisional cannons. The vehicle also featured a 7.62 mm DT machine gun for additional defense. Crew and Configuration: The AT-1 had a crew of three to four members, including a driver, a commander, and gunners. The design included a simple, top-opening box superstructure that replaced the traditional turret, allowing for a more spacious fighting compartment.