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Soviet and Russian fully automatic naval close-in weapon system / From Wikipedia, the free encyclopedia

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The AK-630 is a Soviet and Russian fully automatic naval, rotary cannon, close-in weapon system. The "630" designation refers to the weapon's six gun barrels and their 30 mm caliber.

Quick facts: AK-630 , Type, Place of origin, Se...
One of two AK-630M installations on the former East-German ship Hiddensee
TypeClose-in weapon system
Rotary cannon
Place of originSoviet Union, Russia
Service history
In service1976–present[1][2]
Used bySee Operators
Production history
TsKIB SOO (Mikhail Knebelman;[1][3]
Vasily Bakalev (AK-630M1-2))[4]
KBP Instrument Design Bureau
(Vasily Gryazev, Arkady Shipunov)[1]
Fire control system:
Zavod Topaz (V. P. Yegorov):[1][5]
Vympel MR-123,
Vympel-A MR-123/176
Ametist Design Bureau:[1]
Vympel-AM MR-123-02/MR-123-03,
Vympel-AME MR-123-02/176
Designed1963–1973 (AK-630)[1]
1983–1989 (1993) (AK-630M1-2)[6]
ManufacturerTulamashzavod,[1] Ordnance Factory Board
No. builtMore than 1000[2]
VariantsAK-630M, AK-630M1;
AK-306 (non-CIWS);
AK-630M1-2, AK-630M-2 Duet
MassGun mount:
1,000 kg (2,200 lb) (AK-630)[1]
1,800 kg (4,000 lb) (AK-630M)[1][7]
2,500 kg (5,500 lb) (AK-630M-2)[1]
External nodes:
800 kg (1,800 lb) (AK-630)[1]
2000 rounds in belt:
1,918 kg (4,228 lb)[1]
Fire control system:
? (Vympel MR-123)
? (Vympel-A MR-123/176)
5.2 tonnes (5.7 short tons)
(Vympel-AM MR-123-02/MR-123-03
and Vympel-AME MR-123-02/176)[1]
1 tonne (2,200 lb) (Laska 5P-10E)[1]
Barrel length1,629 mm (64 in) (total)[1]
1,460 mm (57 in) (rifled)[1]
Width1,240 mm (49 in) (mount ring)[1]
Height1,070 mm (42 in) (above deck)[1]
2,050 mm (81 in) (below deck)[1]

ShellHEI-Frag, Frag-T[1]
Shell weight0.39 kg (0.86 lb)[1]
Caliber30×165mm AO-18[N 1]
Barrels6 (AK-630M)
6 (× 2) (AK-630M1-2)
ActionGas-operated rotary cannon
Elevation+88° ... -12° (50°/sec)[1]
+90° ... -25° (60°/sec) AK-630M-2[8]
Traverse±180° (70°/sec)[1]
±180° (80°/sec) AK-630M-2[8]
Rate of fire4,000–5,000 rounds/min (AK-630M)[7]
10,000 rounds/min (AK-630M1-2)[6]
Muzzle velocity880–900 m/s (2,900–3,000 ft/s)[1]
Effective firing range4,000 m (13,000 ft) (aerial)[1]
5,000 m (16,000 ft) (maritime)[1]
5,000 m (16,000 ft) (all, AK-630M-2)[9]
Maximum firing rangethe projectiles self-destruct past 5,000 m (16,000 ft) range[1]
Feed systemBelt:
2,000 rounds (additional 1,000 rounds in reserve feed bin, AK-630M)[10]
4,000 rounds (AK-630M1-2)[1]
SightsRadar / TV-optical

1 or 2 AO-18 autocannons
4 9A4172 missiles (Vikhr-K upgrade)[11]

The system is mounted in an enclosed automatic turret and directed by MR-123 radar and television detection and tracking. The weapon's primary purpose is defense against aircraft and helicopters. As one of the tried-and-true CIWS systems available, effectiveness against anti-ship missiles has been demonstrated over the years in exercises,[12] making it the staple anti-air weapon of most Soviet naval vessels.

The AK-630 can also be employed against ships and other small craft, coastal targets, and floating mines. Once operational, the system was rapidly adopted and installed in every new Soviet warship (from mine-hunters to aircraft carriers) with up to eight units on larger vessels; hundreds have been produced in total.