AK-630 NAVAL GUN

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. 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, 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.

Specifications :

Mass : 

Gun mount:

1,000 kg (2,200 lb) (AK-630)

1,800 kg (4,000 lb) (AK-630M)

2,500 kg (5,500 lb) (AK-630M-2)

Barrel length :

 1,629 mm (64 in) (total)

1,460 mm (57 in) (rifled) 

Width :

1,240 mm (49 in) (mount ring)

Height :

1,070 mm (42 in) (above deck)

2,050 mm (81 in) (below deck)

Crew :

1

Shell : 

HEI-Frag, Frag-T

Shell weight :

0.39 kg (0.86 lb)

Caliber :

30×165mm AO-18

Barrels :

6 (AK-630M)

6 (× 2) (AK-630M1-2)

Action :

Gas-operated rotary cannon 

Elevation :

+88° ... -12° (50°/sec)

+90° ... -25° (60°/sec) AK-630M-2

Traverse :

±180° (70°/sec)

±180° (80°/sec) AK-630M-2

Rate of fire :

4,000–5,000 rounds/min (AK-630M)

10,000 rounds/min (AK-630M1-2)

Muzzle velocity :

880–900 m/s (2,900–3,000 ft/s) 

Effective firing range :

4,000 m (13,000 ft) (aerial)

5,000 m (16,000 ft) (maritime)

5,000 m (16,000 ft) (all, AK-630M-2)

Maximum firing range :

the projectiles self-destruct past 5,000 m (16,000 ft) range

Feed system :

Belt:

2,000 rounds (additional 1,000 rounds in reserve feed bin, AK-630M)

4,000 rounds (AK-630M1-2)

Sights :

Radar / TV-optical 

Main armament :

1 or 2 AO-18 autocannons 

Secondary armament :

4 9A4172 missiles (Vikhr-K upgrade).