SU-12

{{For|the Soviet aircraft|Sukhoi Su-12}}

{{Infobox weapon

|name=SU-12 self-propelled gun battery

|image= САУ СУ-12.jpg

|image_size = 300

|caption = SU-12 (based on а Moreland truck) after maneuvers. Kiev Military District, {{ill|45th Mechanized Corps (Soviet Union)|ru|45-й механизированный корпус|lt=45th Mechanized Corps}}. Autumn 1933.

|origin = Soviet Union

|is_vehicle = yes

|service = 1933–1938 (SU-12), 1941(SU-1-12)

|used_by = Soviet Union

|wars = World War II
Winter War
Soviet–Japanese border conflicts

|designer = Leningrad Kirov Plant

|design_date = 1933

|manufacturer = Kirov Plant

|production_date = 1933-1935

|number = 48 (SU-12), 51 (SU-1-12)

|crew= 4

|length = 5.61m

|width = 1.9m

|height = 2.325m

|weight = 3.7 tons

|armour = 4 mm gun shield, 4 mm roof plate, 4 mm rear shield, 2 mm rear window (SU-1-12 only)

|primary_armament = 76 mm regimental gun M1927 (36 rounds)

|transmission =

|engine = GAZ M-1

|engine_power =

|suspension = Leaf spring

|speed = 60 km/h, highway

|vehicle_range = 370 km

}}

The SU-12 ({{langx|ru|СУ-12}}) self-propelled gun battery (gun truck) was created in 1934 by the Union of Soviet Socialist Republics by mounting a 76 mm regimental gun M1927 onto a modified GAZ-AAA truck, and was in production from 1933 to 1935. The cannon's barrel and recoil system were modified to reduce recoil. It was the Soviet Union's first self-propelled gun. It had a four-man crew, including the driver, and the gun could rotate 270 degrees.{{cite web | url=https://www.flamesofwar.com/hobby.aspx?art_id=3999 | title=Hobby }}

The SU-12 had no armor protection. This was corrected in the SU-1-12 model which added a front shield and roof armor of 4mm thickness. As time went by more armor, in the form of a 2mm rear window and a 4mm rear shield, were added to the SU-1-12 models. Most SU-12 units were decommissioned by 1938, but the Su-1-12 models served in the Battle of Lake Khasan, the Battles of Khalkhin Gol, and in the Winter War against Finland.{{cite web | url=https://www.globalsecurity.org/military//world/russia/su-12-1933.htm | title=Su-12 / Su-1-12 / Gaz-AAA }}https://www.flamesofwar.com/Default.aspx?tabid=144&art_id=3999 By 1941 only 3 were left in service and had been supplanted by tracked SPGs.