Kilo-class submarine (original) (raw)

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Diesel electric submarine class

"Kilo Class" redirects here. For the novel by Patrick Robinson, see Kilo Class (novel).

Russian Black Sea Fleet Improved Kilo–class submarine B-265 Krasnodar in 2015
Class overview
Builders Rubin Design Bureau Krasnoye Sormovo Shipyard Amur Shipbuilding Plant Admiralty Shipyard Sevmash
Operators See Operators
Preceded by Tango class
Succeeded by Lada class
Subclasses Sindhughosh class
Built 1980–present
In service 1980–present
In commission December 1980–present
Building 2
Completed 83
Active 65
Lost 1
Retired 16
Preserved 1
General characteristics
Type Attack submarine
Displacement Surfaced: 2,325 (Project 877) – 2,350 (Project 636.3) tons Submerged: 3,075 tons full load (Project 877); 3,950 tons full load (Project 636.3)[1] [2]
Length 58.7–83.8 m (192 ft 7 in – 274 ft 11 in)
Beam 9.9 m (32 ft 6 in)
Draft 6.2 m (20 ft 4 in)
Installed power Diesel-electric
Propulsion Diesel-electric propulsion 2 × 1000 kW diesel generators 1 × 5,500–6,800 shp (4,100–5,100 kW) propulsion motor 1 × fixed-pitch 6-bladed (Project 877) or 7-bladed (Project 636) propeller
Speed Surfaced: 17 knots (31 km/h; 20 mph) Submerged: 20 knots (37 km/h; 23 mph)
Range With snorkel: 6,000–7,500 nmi (11,100–13,900 km; 6,900–8,600 mi) at 7 kn (13 km/h; 8.1 mph) Submerged: 400 nmi (740 km; 460 mi) at 3 kn (5.6 km/h; 3.5 mph) Full run: 12.7 nmi (23.5 km; 14.6 mi) at 21 kn (39 km/h; 24 mph)
Endurance 45 days
Test depth Operational: 240 m (790 ft) Maximum: 300 m (980 ft)
Complement 52
Armament 6 × 533 mm (21 in) torpedo tubes 18 torpedoes 4[3] Kalibr/Club land-attack cruise missile, anti-ship missile and anti-submarine missile (some versions) 24 mines 8 9K34 Strela-3 (SA-N-8 Gremlin) or 8 9K310 Igla-1 (SA-N-10 Gimlet) surface-to-air missiles (export submarines may not be equipped with air defense weapons)

Russian Project 877 in the English Channel in 2018

A Russian Kilo-class submarine underway on the surface

The Kilo-class submarines are a group of diesel-electric attack submarines designed by the Rubin Design Bureau[1][3][4] in the Soviet Union in the 1970s and built originally for the Soviet Navy.

The first version had the Soviet designation Project 877 Paltus (Russian: Па́лтус, meaning "halibut"), NATO reporting name Kilo.[5] They entered operational service in 1980 and continued being built until the mid-1990s, when production switched to the more advanced Project 636 Varshavyanka variant, also known in the West as the Improved Kilo class.[6][7][8] The design was updated again by the Russian Navy in the mid-2010s, to a variant called Project 636.3, also known as Improved Kilo II.[5]

The Project 877 attack submarines were 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 Arfa also upgraded to MG-519EM. MGK 400E can detect submarines with 0.05 Pa/Hz noisiness in 16 km (9.9 mi) and surface vessels with 10 Pa/Hz noisiness in 100 km (62 mi).[9] 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 sound waves of active sonar, which results in a reduction and distortion of the return signal.[10] These tiles also help attenuate sounds that are emitted from the submarine, thus reducing the range at which the submarine may be detected by passive sonar.[11]

Project 636 and 636.3 submarines can launch Kalibr (and their Club export version) cruise missiles. It was reported in September 2022 that they can carry four Kalibr missiles, and can launch them through two of their six torpedo tubes.[12]

A single Project 877 submarine, B-871 Alrosa, is equipped with pump-jet propulsion, instead of a propeller.[13] It has been retrofitted for the Kalibr missile.[14]

It was planned for Project 636 (Improved Kilo) to be succeeded by the Lada class in Russian Navy service. However, by November 2011 it was apparent that the Lada class would be delayed because Sankt Peterburg (B-585), the lead boat of the class, had shown major deficiencies. On 27 July 2012, the Russian Navy commander-in-chief announced that construction of the Lada-class submarines would resume, having undergone design changes.[_citation needed_] Series production was reported to be underway in the latter 2010s.[15][_needs update_]

The Russian Navy also moved forward in the late 2010s, with the construction of Project 636.3, also known as Improved Kilo II. The first-in-class was named Petropavlovsk-Kamchatsky (PPK) and was launched by the head of Admiralty Shipyard Alexander Buzakov on 28 March 2019, or some thirty months after commission.[1] By November 2019, six units had been built for the Black Sea Fleet and further boats were proposed, but not funded, for the Pacific and Baltic Fleets.[4]

In June 2022, an unconfirmed report from within Russia's defense industry suggested that a further tranche of six additional Project 636.3 vessels might be ordered to start construction in around 2024.[16] The PPK class "is slightly longer in length — the sub's submerged displacement is around 4,000 tons — and features improved engines, an improved combat system, as well as new noise reduction technology; it can fire both torpedoes and cruise missiles, launched from one of six 533-millimeter torpedo tubes."[1] The PPK class has a seven-bladed propeller, instead of the six-bladed propeller of the Project 877 class.[14]

Schematic drawing of Kilo-class submarine

There are several variants of the Kilo class. The information below is the smallest and largest number from the available information for all three main variants of the boat.[17]

Operational history

[edit]

Kilo-class attack submarines originally began entering service with the Soviet Navy from 1980.

At the beginning of 2014, the Chinese PLA Navy held an emergency combat readiness test.[18] The captain of the 32nd Submarine Detachment Wang Hongli was ordered to take the Kilo-class submarine Yuanzheng 72 (hull number: 372) on a combat readiness voyage. Submarine 372 suddenly encountered a "cliff" caused by a sudden change in seawater density. Because the seawater density suddenly decreased, the submarine lost its buoyancy and rapidly fell to the seabed more than 3,000 meters deep. The pressure on the submarine increased sharply, and the main engine room pipeline was damaged and water entered. Wang Hongli quickly issued a series of commands, and the commanders and crew accurately completed dozens of operations, successfully surfacing the submarine in 3 minutes, avoiding the tragedy of the submarine being destroyed and people dying. Submarine 372 lost power due to a large amount of water entering the main engine room. Wang Hongli led the officers and soldiers to eliminate the equipment failure. Finally, only one navigation motor was used to power the submarine and it entered the ocean. This voyage created many firsts for the submarines of the Chinese People's Liberation Army Navy.[19][20] The PLA Navy declared it a miracle in the history of world submarines.[21]

On August 27, 2014, Chairman of the Central Military Commission Xi Jinping signed a general order to award the First Class Merit to Wang Hongli, commander of the 92474th Unit (Military Unit Cover Designator 92474).[22] On September 2, 2014, a celebration meeting was held at submarine detachment of the South China Sea Fleet to award the first-class merit awarded by the Central Military Commission to Wang Hongli and the Navy to Submarine 372. Member of the Central Military Commission and Commander of the Navy Wu Shengli read out the orders of the Central Military Commission and the Navy, and awarded medals and certificates to Wang Hongli and Submarine 372 respectively.[23]

In 2015 five Kilo-class submarines were deployed to the Russian naval facility in Tartus, Syria. At least two of the units reportedly attacked land targets inside Syria with 3M54 Kalibr cruise missiles (NATO designation: SS-N-27A "Sizzler").[4] On 8 December 2015 marked the first time a Kilo-class submarine fired cruise missiles against an enemy. B-237 Rostov-on-Don struck two targets near the ISIS capital of Raqqa by the missile attack.[24] The B-237 Rostov-on-Don transited the Dardanelles on its way back to the Black Sea on 12 February 2022.[25]

The B-871 Alrosa, a pump-jet Kilo class, which derives from the Project 877 hull, participated in the Russo-Ukraine War.

After the sinking of the Russian cruiser Moskva in April 2022, it was remarked that the Kilo-class subs were the only members of the Black Sea Fleet whose orders did not prohibit venturing into Ukrainian waters near Odesa during the Russian invasion of Ukraine.[26] In September 2022, after the early 2022 Crimea attacks, the UK Ministry of Defence said that the Kilo-class submarines were moved from Sevastopol to the Port of Novorossiysk in Krasnodar Krai.[27][12]

On 13 September 2023, B-237 Rostov-on-Don was severely damaged by a Ukrainian Storm Shadow missile strike while it was drydocked in Sevastopol.[28][29][30]According to satellite images taken in June 2024, the submarine was moved to a lesser used dry dock within the port. Camouflage nets were thrown up to disguise its presence and to make observation more challenging. According to reports, the submarine is under repair.[31]

On 2 August 2024, Ukrainian Forces launched a strike against a Russian submarine and an S-400 air defense system in Crimea. Ukrainian sources claimed that the submarine B-237 Rostov-on-Don was "sunk on the spot" in the attack.[32][33][34][35][36] Other sources claim that the submarine was only hit and not sunk.[37] Satellite images showed the that camouflage nets were burned out by the strike.[38]

The first submarine entered service in the Soviet Navy in 1980, and the class remains in use with the Russian Navy today; around 11 original Kilo-class vessels believed to still be in active service with the Russian Navy (as of 2023), while new Improved Kilo–class subs are being delivered through the 2020s to replace them. About forty vessels have been exported to several countries:

Possible purchasers

[edit]

The government of Venezuela expressed interest since 2005 in acquiring nine AIP-powered conventional submarines, either the German U214 or later the Amur 1650. There was a Russian counteroffer due to technical issues at the shipyards back then, for five Project 636 Kilo-class and four Amur 1650, but it hasn't gone through yet.[60]

In 2017, the Philippine Navy showed interest in the Kilo-class submarine as part of its modernization program. Defense Secretary Delfin Lorenzana said the country was evaluating a Russian offer.[61]

The Indonesian Navy was interested in purchasing two used Kilo-class submarines, but the Chief of Staff of the Indonesian Navy Laksamana Marsetio cancelled the plans in 2014 after inspecting the two submarines in Russia with an Indonesian Navy team. He said, "The submarines look good on the outside, but the inside is filled with broken equipment, and the two submarines have been in storage for two years." Indonesia instead bought six Improved _Jang Bogo_-class submarines, later known as _Nagapasa_-class submarine, including a transfer of technology, where Indonesia will eventually build four of six of the submarines with South Korea.[62]Actually, the bid for Kilo Russian submarines fell apart due to the lapse of the financing term of the Russian Federation.

Operator # Name Shipyard Project Laid down Launched Commissioned Fleet Status
Russia B-248 x Komsomolsk-on-Amur 877 16 March 1980 12 September 1980 31 December 1980 Decommissioned 2001
Russia B-260 Chita Komsomolsk-on-Amur 877 22 February 1981 23 August 1981 30 December 1981 PF Decommissioned 2013, sank partially on way to scrap in 2019
Russia B-227 Vyborg Komsomolsk-on-Amur 877 23 February 1982 16 September 1982 23 February 1983 BF Decommissioned 2018 (exhibit patriot park Kronstadt)
Russia B-229 x Komsomolsk-on-Amur 877 23 February 1983 15 July 1983 30 October 1983 Decommissioned 2002
Russia B-404 x Komsomolsk-on-Amur 877 7 May 1983 24 September 1983 30 December 1983 Decommissioned 2002
Russia B-401 Novosibirsk Nizhniy Novgorod 877 6 October 1982 15 March 1984 30 September 1984 NF Decommissioned 2012
Russia B-402 Vologda Nizhniy Novgorod 877 24 August 1983 29 September 1984 30 December 1984 NF Decommissioned 2016
Russia B-405 (ex Tyumenskiy Komsomolets) Komsomolsk-on-Amur 877 20 April 1984 21 September 1984 30 December 1984 Decommissioned 2002
Poland 291 (ex-B-351) Orzeł Nizhniy Novgorod 877E 29 September 1984 7 June 1985 29 April 1986 Active as of 2010[update]
Romania 581 (ex-B-801) Delfinul Nizhniy Novgorod 877E 1984 1985 August 1985 Unknown (in reserve since 1995)
India S55 Sindhughosh Saint Petersburg 877EKM 29 May 1983 29 July 1985 25 November 1985 Active as of 2010[update], modernized to project 08773 in 2002–2005
Russia B-470 x Komsomolsk-on-Amur 877 6 May 1985 27 August 1985 30 December 1985 Decommissioned 2005
Russia B-806 Dmitrov Nizhniy Novgorod 877EKM[_citation needed_] 15 October 1984 30 April 1986 25 September 1986 BF Active as of 2018[update][63]
India S56 Sindhudhvaj Saint Petersburg 877EKM 1 April 1986 27 July 1986 25 November 1986 Decommissioned on 16 July 2022.[64]
Algeria 012 Rais Hadj Mubarek Nizhniy Novgorod 877EKM 1985 1986 29 November 1986 Upgraded in 2010, able to launch Kalibr/Club missiles
Russia B-439 x Komsomolsk-on-Amur 877 4 April 1986 31 July 1986 30 December 1986 Decommissioned 2005
India S57 Sindhuraj Nizhniy Novgorod 877EKM 1986 1987 2 September 1987 Active as of 2010[update], modernized to project 08773 in 1999–2001
Algeria 013 El Hadj Slimane Nizhniy Novgorod 877EKM 1986 1987 25 November 1987 Upgraded in 2011, able to launch Kalibr/Club missiles
Myanmar 71 UMS Minye Theinkhathu (ex-Sindhuvir) Saint Petersburg 877EKM 15 May 1987 13 September 1987 25 December 1987 Modernized to project 08773 in 1997–1999, transferred to Myanmar Navy in 2020
Russia B-445 Svyatoi Nikolai Chudotvorets Komsomolsk-on-Amur 877 21 March 1987 26 September 1987 30 January 1988 PF May have decommissioned 2020;[65] listed as still in service by one source[66]
India S59 Sindhuratna Nizhniy Novgorod 877EKM 1987 1988 14 August 1988 Active as of 2010[update], modernized to project 08773 in 2001–2003
India S60 Sindhukesari Saint Petersburg 877EKM 20 April 1988 16 August 1988 29 October 1988 Active as of 2010[update], modernized to project 08773 in 1999–2001
Russia B-808 Yaroslavl Nizhniy Novgorod 877 29 September 1986 30 July 1988 27 December 1988 NF Decommissioned 2022[67]
Russia B-394 Nurlat Komsomolsk-on-Amur 877 15 April 1988 3 September 1988 30 December 1988 PF Active 2018
Russia B-800 Kaluga (ex-Vologodskij komsomolets) Nizhniy Novgorod 877LPMB[_citation needed_] 5 March 1987 7 May 1989 30 September 1989 NF Refitted in 2009–2012, active 2022[67]
India S61 Sindhukirti Saint Petersburg 877EKM 5 April 1989 26 August 1989 30 October 1989 Active, modernized to project 08773
Russia B-464 Ust'-Kamchatsk Komsomolsk-on-Amur 877 26 May 1989 23 September 1989 30 January 1990 PF Active 2018
Russia B-459 Vladikavkaz Nizhniy Novgorod 877 25 February 1988 29 April 1990 30 September 1990 NF Refitted in 2011–15, active, entered Baltic Sea 3 July 2018 to take part in Main Naval Parade in St Petersburg on 29 July.
India S62 Sindhuvijay Saint Petersburg 877EKM 6 April 1990 27 July 1990 27 October 1990 Active as of 2010[update], modernized to project 08773 in 2005–2007
Russia B-871 Alrosa Nizhniy Novgorod 877 17 May 1988 September 1989 30 December 1990 BSF Refitted in 2014–2022[68]
Russia B-471 Magnitogorsk Nizhniy Novgorod 877 26 October 1988 22 September 1990 30 December 1990 NF Active 2018
Russia B-494 Ust'-Bolsheretsk Komsomolsk-on-Amur 877 5 May 1990 4 October 1990 30 December 1990 PF Decommissioned 2023[69]
Iran 901 Taregh Saint Petersburg 877EKM 5 April 1991 25 September 1991 25 December 1991 Active as of 2012[update][70] Upgraded in Iran shipyard[71]
Russia B-187 Komsomolsk-on-Amur Komsomolsk-on-Amur 877 7 May 1991 5 October 1991 30 December 1991 PF Active 2018[72]
Russia B-177 Lipetsk Nizhniy Novgorod 877 3 November 1989 27 July 1991 30 December 1991 NF Active 2018
Russia B-190 Krasnokamensk Komsomolsk-on-Amur 877 8 May 1992 25 September 1992 30 December 1992 PF Decommissioned 2023[73]
Iran 902 Noah Saint Petersburg 877EKM 30 April 1992 16 October 1992 31 December 1992 Unknown (probably in modernization in Iranian shipyard)
Russia B-345 Mogocha Komsomolsk-on-Amur 877 22 April 1993 6 October 1993 22 January 1994 Decommissioned 29 May 2021[65]
People's Republic of China 364 Yuan Zheng 64 Hao Nizhniy Novgorod 877EKM ??? 1994 10 November 1994 Decommissioned 2021
People's Republic of China 365 Yuan Zheng 65 Hao Nizhniy Novgorod 877EKM ??? 1995 14 August 1995 Decommissioned 2021
Iran 903 Yunes Saint Petersburg 877EKM 5 February 1992 12 July 1994 2 September 1996 Active as 2011[74] (probably in modernization in Iranian shipyard)
India S63 Sindhurakshak Saint Petersburg 877EKM 16 February 1995 26 June 1997 2 October 1997 A munitions accident caused an explosion and fire while at berth in 2013.[75] It was later scuttled.
India S65 Sindhurashtra Saint Petersburg 877EKM 12 December 1998 14 October 1999 16 May 2000 Active as of 2010[update]
Operator # Name Shipyard Project Laid down Launched Commissioned Fleet Status
People's Republic of China 366 Yuan Zheng 66 Hao Saint Petersburg 636 16 July 1996 26 April 1997 26 August 1997 Active as of 2006[update]
People's Republic of China 367 Yuan Zheng 67 Hao Saint Petersburg 636 28 August 1997 18 June 1998 25 October 1998 Active as of 2006[update]
People's Republic of China 368 Yuan Zheng 68 Hao Saint Petersburg 636M 18 October 2002 27 May 2004 20 October 2004 Active as of 2006[update]
People's Republic of China 369 Yuan Zheng 69 Hao Saint Petersburg 636M 18 October 2002 19 August 2004 2005 Active as of 2006[update]
People's Republic of China 370 Yuan Zheng 70 Hao Saint Petersburg 636M 2004 May 2005 2005 Active as of 2006[update]
People's Republic of China 371 Yuan Zheng 71 Hao Saint Petersburg 636M 2004 2005 2005 Active as of 2006[update]
People's Republic of China 372 Yuan Zheng 72 Hao Saint Petersburg 636M 2005 2005 2006 Active as of 2006[update]
People's Republic of China 373 Yuan Zheng 73 Hao Nizhniy Novgorod 636M July 1992 8 May 2004 5 August 2005 Active as of 2007[update]
People's Republic of China 374 Yuan Zheng 74 Hao Severodvinsk 636M 29 May 2003 21 May 2005 30 December 2005 Active as of 2006[update]
People's Republic of China 375 Yuan Zheng 75 Hao Severodvinsk 636M 29 May 2003 14 July 2005 30 December 2005 Active as of 2006[update]
Algeria 021 Messali el Hadj Saint Petersburg 636M 2006 20 November 2008 28 August 2009 Active[_citation needed_]
Algeria 022 Akram Pacha Saint Petersburg 636M 2007 9 April 2009 29 October 2009 Active[_citation needed_]
Vietnam 182 Hà Nội Saint Petersburg 636.1 25 August 2010 28 August 2012[76] 3 April 2014 Active as of 2014[77][78]
Vietnam 183 Hồ Chí Minh City Saint Petersburg 636.1 28 September 2011 28 December 2012 3 April 2014 Active as of 2014[79][_non-primary source needed_][80]
Vietnam 184 Hải Phòng Saint Petersburg 636.1 August 2013[81] 1 August 2015 Active as of 2014[82]
Vietnam 185 Khánh Hoà Saint Petersburg 636.1 2013 28 March 2014[83][_non-primary source needed_] 1 August 2015 Active as of 2015[84]
Vietnam 186 Đà Nẵng Saint Petersburg 636.1 28 December 2014 28 February 2017 Active as of 2016[85]
Vietnam 187 Bà Rịa-Vũng Tàu Saint Petersburg 636.1 28 May 2014[86] 28 September 2015 28 February 2017 Active as of 2017[87]
Algeria 031 El Ouarsenis Saint Petersburg 636.1 2015 14 March 2017 9 January 2019 Active as of 2019[88]
Algeria 032 El Hoggar Saint Petersburg 636.1 18 June 2018 9 January 2019 Active as of 2019[88]

Italics indicate estimates.

Operator # Name Shipyard Project Laid down Launched Commissioned Fleet Status
Russia B-261 Novorossiysk [ru] Saint Petersburg 636.3 20 August 2010[89] 28 November 2013[90] 22 August 2014[91][92] BSF Active
Russia B-237 Rostov-na-Donu Saint Petersburg 636.3 21 November 2011[93] 26 June 2014[94] 30 December 2014[95] BSF Damaged by the cruise missile strike on Sevastopol drydock on 12 September 2023.[96] Currently completed repair in dry dock.[97][98]
Russia B-262 Stary Oskol [ru][99] Saint Petersburg 636.3 17 August 2012[100] 28 August 2014[101] 25 June 2015 BSF Active
Russia B-265 Krasnodar [ru] Saint Petersburg 636.3 20 February 2014[102] 25 April 2015[103] 5 November 2015 BSF Active
Russia B-268 Velikiy Novgorod [ru] Saint Petersburg 636.3 30 October 2014[104] 18 March 2016[105] 25 October 2016[106] BSF Active
Russia B-271 Kolpino [ru] Saint Petersburg 636.3 30 October 2014[104] 31 May 2016[107] 24 November 2016 BSF Active
Russia B-274 Petropavlovsk-Kamchatsky [ru] Saint Petersburg 636.3 28 July 2017[108] 28 March 2019[109] 25 November 2019[110] PF Active
Russia B-603 Volkhov [ru] Saint Petersburg 636.3 28 July 2017[108] 26 December 2019[111] 24 October 2020[112] PF Active; carried out land-attack cruise missile tests in January 2022[113]
Russia B-602 Magadan [ru] Saint Petersburg 636.3 1 November 2019[114] 26 March 2021[115] 12 October 2021[116][117][118][119][120][121] PF Active; deployed in the Pacific fleet late 2022[122]
Russia B-588 Ufa [ru] Saint Petersburg 636.3 1 November 2019[114] 31 March 2022[123] 16 November 2022[124][125][126][120][127] PF Active[128]
Russia B-608 Mozhaysk Saint Petersburg 636.3 23 August 2021[129][130] 27 April 2023[131] 28 November 2023 PF Active[132]
Russia B-??? Yakutsk Saint Petersburg 636.3 23 August 2021[129][130] 11 October 2024[133] 2024[134][135][120][127] PF Under construction[136]
Russia B-??? Petrozavodsk Saint Petersburg 636.3 2022[127] 2025[127] BF[127] Ordered in 2020,[137][138] improved design[139]
Russia B-??? Mariupol Saint Petersburg 636.3 Autumn 2024[140] 2027 NF[141] Ordered in 2022
Russia B-??? Saint Petersburg 636.3 2023[142][143] 2026 BF Ordered in 2022
Russia B-??? Saint Petersburg 636.3 2025 2028 BF Ordered in 2022
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