|Kortik / Kashtan|
|Type||Close-in weapon system|
|Place of origin||Soviet Union, Russia|
|Used by||See Operators|
KBP (Arkady Shipunov)
Fire control system: RATEP
|Variants||Kortik-M / Kashtan-M|
|Mass||15,500 kg (34,200 lb) (Kashtan) |
12,500 kg (27,600 lb) (Kashtan-M)
|Height||2,250 mm (89 in) (above deck)|
|Shell||HEI-Frag, Frag-T, APDS-T|
|Shell weight||0.39 kg (0.86 lb) (HEIF, FT) |
0.30 kg (0.66 lb) (APDS-T)
|Barrels||2 × 6 (guns); 2 × 4 launch tubes|
|Action||Gas-operated rotary cannon|
|Rate of fire||Kashtan: |
9,000 rounds/min (guns)
1–2 (salvo) missiles per 3–4 sec
10,000 rounds/min (guns)
|Muzzle velocity||860 m/s (2,800 ft/s) (HEIF, FT) |
960 m/s (3,100 ft/s) (HEIF, FT)
1,100 m/s (3,600 ft/s) (APDS-T)
|Effective firing range||By missiles:|
1,500–8,000 m (4,900–26,200 ft)
1,500–10,000 m (4,900–32,800 ft)
Kashtan: (range, altitude)
500–4,000 m (1,600–13,100 ft),
3,000 m (9,800 ft)
300–5,000 m (980–16,400 ft)
|Feed system||Link-less, helical; 1000 rounds|
|Sights||Radar / TV-optical: |
2–3/1 m (6.6–9.8/3.3 ft) accuracy,
tracks 6 targets simultaneously
|Warhead||Continuous-rod w/ frag layer|
|8 × 9M311K + 32 missiles |
8 × 9M311-1E + 24 missiles
|2 × AO-18K autocannon |
2 × AO-18KD autocannon
|Flight altitude||3,500 m (11,500 ft) (Kashtan) |
6,000 m (20,000 ft) (Kashtan-M)
|Maximum speed||910 m/s (3,000 ft/s)|
The Kortik (Russian : Кортик, English: Dirk) close-in weapon system (CIWS) is a modern naval air defence gun-missile system deployed by the Russian Navy. Its export version is known as Kashtan (Russian : Каштан, English: Chestnut), with the NATO designation CADS-N-1 Kashtan.
The Kortik is found on the Russian aircraft carrier Admiral Kuznetsov , Kirov-class battlecruiser, Neustrashimy-class frigate; and the People's Liberation Army Navy Sovremenny-class destroyers, and other modern designs. Typically deployed as a combined gun and missile system, it provides defence against anti-ship missiles, anti-radar missiles and guided bombs. The system can also be employed against fixed- or rotary-wing aircraft or even surface vessels such as fast attack boats or targets on shore.
The Kortik will be replaced in Russian Navy service by the Pantsir-M CIWS, which uses similar rotary cannons but different missile and radar systems.
The weapon is a modular system consisting of a command module and typically two combat modules, as in the case of the two Sovremennyy-class destroyers Taizhou (ex-Vnushitelnyy) and Ningbo (ex-Vechnyy) in Chinese service, although the number can be as many as 8 in the case of Admiral Kuznetsov . The command module detects and tracks threats, distributes targeting data to the combat modules, and interrogates IFF of approaching threats. The command module has a 3-D target detection radar, and an all weather multi-band integrated control system. Depending on the number of installed combat modules, the system can engage multiple targets simultaneously. The combat modules automatically track using either radar, electro-optronic control system (such as FLIRs) or both, and then engages targets with missiles and guns. The combat modules are typically equipped with two GSh-30K (AO-18K) six-barrel 30 mm rotary cannons, fed by a link-less feeding mechanism, and two 9M311-1 missile launchers equipped with 4 ready-to-fire missiles each and fed by a reloading system storing 32 missiles in ready-to-launch containers.
The guns used in the Kortik are the GSh-30K six-barrel 30 mm rotary cannon. Individually, each GSh-30K has a higher rate of fire compared to other guns used by other CIWS such as the GAU-8 on the Goalkeeper and the M61 Vulcan on the Phalanx. Along with a high rate of fire, the fairly heavy round (390 g or 14 oz) used by the Kortik is comparable to the DPU rounds of the GAU-8 Avenger (425 g or 15.0 oz), although the muzzle velocity (and therefore both the kinetic energy and effective range) is slightly lower, partially offsetting the high caliber and rate of fire.
The missiles used in the Kortik are the 9M311 missiles, which is also used on the 9K22 Tunguska. The 9M311 is a SACLOS guided missile, however, it is steered automatically by the command module. The warhead weighs 9 kilograms (20 lb) and is either laser or radio fused. The warhead is a continuous-rod warhead with a steel cube fragmentation layer. The detonation of the warhead will form a complete circle of fragmentation that is 5 meters in radius, and damage or destroy anything in that circle.
The combination of the missiles and guns, provides more comprehensive protection when compared to other CIWS utilising either missiles or guns only. The system's combined kill probability is 0.96 to 0.99.
|Weight||15,500 kg (34,200 lb)||12,500 kg (27,560 lb)|
|Armament||2 x GSh-6-30||2 x GSh-6-30KD|
|Firing Rate||2 x 4,500 rds/min||2 x 5,000 rds/min|
|Target Range||500-4,000m (1,640-13,120 ft)|
|Effective Range||500-1,500m (1,640-4,920 ft)|
|Ammunition Store||2 x 500 rounds||2 x 1500 rounds|
|Muzzle Velocity||860 m/s (2,820 ft/s)||960-1100 m/s (3,150-3,610 ft/s)|
|Elevation||3,000m (9,840 ft)|
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