Video: Kilo 636 submarine opens fire to destroy enemy's ships


The Kilo class is the NATO reporting name for a naval diesel-electric submarine that is made in Russia. The original version of the vessels were designated Project 877 Paltus (Halibut) in Russia. There is also a more advanced version, designated as Improved Kilo in the west, and Project 636 Varshavyanka in Russia.

The Kilo class was to have been succeeded by the Lada class. In November 2011 the Russian Navy announced that the Lada class will not enter service because trials with the lead boat of the new class, Sankt Peterburg (B-585) had shown major deficiencies. Construction of two further boats has been suspended.

The boats are mainly intended for anti-shipping and anti-submarine operations in relatively shallow waters. Original Project 877 boats are equipped with Rubikon MGK-400 sonar system (with NATO reporting name Shark Gill), which includes a mine detection and avoidance sonar MG-519 Arfa (with NATO reporting name Mouse Roar). Newer Project 636 boats are equipped with improved MGK-400EM, with MG-519 Afra also upgraded to MG-519EM. The improved sonar systems have reduced the number of operators needed by sharing the same console via automation.

Anechoic tiles are fitted on casings and fins to absorb the sonar sound waves of active sonar, which results in a reduction and distortion of the return signal. These tiles also help attenuate sounds that are emitted from the submarine, thus reducing the range by which the sub may be detected by passive sonar.

Operators:

Algeria : 2 Original Kilo, 2 Improved Kilo.

People's Republic of China : 2 Original Kilo, 10 Improved Kilo.

India : Designated as the Sindhughosh class; 10 active.

Poland : 1 Kilo ORP OrzeĊ‚.

Iran : 3 Kilo.

Romania : 1 Kilo – (Delfinul II).

Russia : 17 Kilo in active service (B-445; B-459 Vladikavkaz; B-464 Ust'-Kamchatsk; B-471 Magnitogorsk; B-494 Ust'-Bolsheretsk; B-800 Kaluga; B-871 Alrosa; B-808 Yaroslavl'; B-177 Lipetsk; B-806; B-340; B-190; B-227; B-260 Chita; B-345; B-394; B-402 Vologda).; 6 Improved Kilo ordered

Vietnam : 6 Improved Kilo (Kilo-636 KMV) on order, contract signed in 2010, production of one per year.

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