130 mm air defense gun KS-30
130-mm anti-aircraft gun KS-30
Type	Anti-aircraft gun
Place of origin	Soviet Union
Service history
Wars	Cold War
Specifications
Mass	24,900 kg (54,900 lb)
Length	11.5 m (37 ft 9 in)
Barrel length	8.4 m (27 ft 7 in)
Width	3 m (9 ft 10 in)
Height	3 m (9 ft 10 in)
Crew	15[1]
Shell	130x1024mm R Separate loading charge and projectile
Caliber	130 mm (5.1 in)
Breech	Semi-automatic horizontal sliding-wedge
Elevation	−5°/+80
Traverse	360°[1]
Rate of fire	10-12 rpm
Muzzle velocity	1,050 m/s (3,400 ft/s)
Maximum firing range	Horizontal: 27 km (17 mi) Vertical: 13.7 km (8.5 mi)[1]

The KS-30 is a Soviet 130mm anti-aircraft gun that appeared in the early 1950s,^[2] closely resembling the German wartime 12.8 cm FlaK 40 anti-aircraft gun. The KS-30 was used for the home defense forces of the USSR and some other Warsaw Pact countries. Recognition features are the heavy dual-tire carriage, a firing platform which folds up to a 45-degree angle when the piece is in travel, and the long clean tube without a muzzle brake. The breechblock is of the semi-automatic horizontal sliding-wedge type, and the piece is fitted with a power rammer and an automatic fuze setter. Fire control is provided by the PUAZO-30 director and the SON-30 radar. The ammunition is of the fixed-charge, separated type. It is not interchangeable with that of the 130 mm field guns or the WWII-era naval and coastal guns, but the cartridge case is the same as in 130 mm/58 (5.1") SM-2-1 (Soviet) and Type 76 (Chinese) naval guns as well as in SM-4-1 coastal gun. The KS-30 is now held in war reserve since it was replaced by surface-to-air guided missiles.

• 12.8 cm FlaK 40 - Nazi Germany
• 120 mm M1 gun - United States

• 100 mm air defense gun KS-19 - contemporary and complementary weapons system
• 85 mm air defense gun M1939 (52-K) - previous generation Soviet AA-gun, much more known
• 152 mm air defense gun KM-52 - 152 mm anti-aircraft gun developed from the KS-30