3K87 Cortic

The Kortik-CIWS-System on board the Stereguschtschi

3K87 Kortik ( Russian Кортик ' dagger ' , NATO code name : CADS-N-1 or SA-N-11 Grison ) is a modern Russian short-range defense system (CIWS) that was developed by the armaments manufacturer's Design Office for Equipment (KBP) in the 1980s was developed.

description

The Kortik system occupies a special position among the short-range defense systems, as it is a combination of interceptor missiles and Gatling cannons , which are united in a tower. The system is used on the ships of the Neustrashimy , Stereguschtschi- , Kirov-class and Admiral Kuznetsov-class . It is designed to provide protection from anti-ship missiles , anti-radar missiles and precision-guided ammunition . The system can also be used against aircraft and smaller sea targets such as speedboats. The individual components of the system were developed by the companies KBP (rockets), Altair ( fire control system ) and Tulamaschsawod (guns). Each cortic tower is equipped with two six -barreled 30 mm Gatling automatic cannons of the type GSch-6-30K , which are mounted in vertically pivoting arms on the sides of the weapon turret, which can be rotated through 360 °. There is a rail on each of the two arms, onto which a quadruple rocket launch container is pushed. If the guided weapons are fired, the turret moves into the loading position and the arms swivel into the + 90 ° position. The loading flaps in the deck swivel to the side and the two four-stage starters are exchanged. Each CIWS module is also equipped with a 3P87 fire control radar (NATO code name: Hot Flash ) and electro-optical sensors, which are located on a stabilized platform between the tube and guided missile armament.

variants

The export version was designated Kaschtan ( Russian Каштан , chestnut ' ). At the International Maritime Defense Show (IMDAS 2003) KBP presented the improved version of the Kaschtan-M. Kaschtan-M exists in two versions: with radar and optical target acquisition or only with optical target acquisition. The combat range of the modernized 9M311-1E anti-aircraft missile has been increased to ten kilometers. The range of the two 30 mm Gatling automatic cannons of the type AO-18KD ranges from 500 to 4000 meters. The muzzle velocity of the AO-18KD was increased to 960 m / s.

Operational doctrine

Attacking missiles are to be fought by the anti-missile missiles at a distance of between 10 and 1.5 km and in the immediate vicinity of less than 1.5 km by the Gatling guns.

Technical specifications

9M311 anti-aircraft missiles

9M311

The two-stage 9M311 missiles, adopted from the land-based 2K22 Tunguska anti-aircraft complex (NATO code name: SA-19 ​​Grison ), reach a top speed of 900 meters per second and have a 9 kg fragmentation warhead. The booster in the first stage has a larger diameter of 152 mm than the second stage with 76 mm, which contains the warhead. 2.6 seconds after the start it is thrown off; the marching step with a mass of 18.5 kg flies without propulsion towards the target. The 9M311 rocket is remotely controlled by additional pulses in the fire control radar signal and can maneuver with up to 18 g and intercept flying targets at a speed of Mach 2. When fighting air targets, the detonator is activated by a radio command about 1000 meters from the target. The fragmentation warhead detonates about five meters from the target and creates a shower of fragments.

• Length: 2.560 m
• Length of container: 2.562 m
• Diameter: 75–152 mm
• Weight: 42 kg (warhead: 9 kg)
• Speed: Mach 2.6 (maximum 900 m / s, average 600 m / s)
• Range: 8 km (4.5 nm), minimum: 1000 m
• Steering method: radio command steering

AO-18K automatic cannon

→ source

• Type: AO-18K six-barrel Gatling cannon
• Caliber: 30 mm
• Rate of fire: 4000-5000 rounds / min
• Gun weight: 200 kg
• Muzzle velocity : 890 m / s

literature

• Norman Friedman: Naval Institute Guide to World Naval Weapon Systems , US Naval Institute Press, Annapolis 2006, ISBN 978-1-55750-262-9 . P. 585

Web links

Commons : Kortik  - collection of images, videos and audio files

• Video on YouTube.com

Individual evidence

1. ↑ Kashtan. In: deagel.com. April 4, 2018, accessed August 26, 2018 . 
2. ↑ KBP Kashtan (SA-N-11 'Grison' / CADS-N-1) (Russian Federation). Archived from the original on January 27, 2013 ; accessed on March 25, 2020 .  
3. ↑ Kaschtan-M on www.kbptula.ru ( Memento from May 4, 2007 in the Internet Archive ) (English)
4. ↑ Archive link ( Memento from February 29, 2008 in the Internet Archive ) Six-Barreled 30 mm GSh-6-30K Automatic Anti-Aircraft Gun (English)