Oscar-class submarine

History

The first submarine of Project 949 was laid down in the mid-1970s and was commissioned in 1980. In 1982 an updated and larger version (Project 949A) replaced the earlier version. In total fourteen submarines were constructed. The Oscar class was designed to attack NATO carrier battle groups using long-range P-700 Granit (SS-N-19 "Shipwreck") anti-ship missiles and targeting data provided by the satellite system (via the submarine's "Punch Bowl" antenna). In the financial problems that followed the fall of the Soviet Union the Oscar class was prioritized by the Russian Navy, and when many older submarine classes were retired the Oscar class remained active in both the Northern and Pacific Fleets.

Modernization

The Rubin Design Bureau started working on Project 949A modernization in 2011, with Zvezdochka and Zvezda shipyards to carry out modernization of the vessels. In September 2015, Russian Defence Minister Sergey Shoygu announced during his visit to Zvezda shipyard, that at least three Oscar-class submarines will undergo repair and modernization to extend their service life by 20 years. The upgraded submarines will be known as "Project 949AM", according to the Russian officials. Modernization cost was estimated at RUB12 billion (US$182 million) per submarine.

In September 2016, it was reported submarines K-132 Irkutsk and K-442 Chelyabinsk are currently being modernized to 949AM. According to the Deputy Prime Minister of Russia Yury Borisov, Russia's Pacific Fleet may get four modernized Oscar II-class submarines armed with Kalibr cruise missiles by 2021.

Versions

Project 949 ''Granit'' (Oscar I)

Two Project 949 Granit submarines were built at Severodvinsk between 1975 and 1982 and assigned to the Soviet Northern Fleet. K-525 was laid down in 1975 and K-206 was laid down in 1979. After the construction of the first two submarines, production continued with the improved project 949A Antey. Both submarines of the Project 949 were decommissioned in 1996 and scrapped in 2004.

Project 949A ''Antei'' (Oscar II)

Eleven Project 949A Antey submarines were completed at Severodvinsk, of which five were assigned to the Soviet Northern Fleet. At one stage it had been planned to develop a new fourth-generation follow-on to the Project 949A, but this plan was later dropped. The external differences between the two classes were that the 949A class is about 10 m longer than its predecessor (approximately 154 m rather than 143 m), providing space and buoyancy for improved electronics and quieter propulsion.

Some sources speculate that the acoustic performance of the Oscar II class is superior to early but inferior to the Akula II class as well as subsequent (4th generation) designs. It also has a larger fin, and its propellers have seven blades instead of four.

Like all post-World War II Soviet designs, they are of double hull construction. Similarly, like other Soviet submarine designs, Project 949 not only has a bridge open to the elements on top of the sail but, for use in inclement weather, there is an enclosed bridge forward and slightly below this station. A distinguishing mark is a slight bulge at the top of the fin. A large door on either side of the fin reaches this bulge. These are wider at the top than on the bottom, and are hinged on the bottom. The Federation of American Scientists reports that this submarine carries an emergency crew escape capsule; it is possible that these doors cover it. The VSK escape capsule can accommodate 110 people.

Project 949AM

Modernization of Project 949A submarines, first announced by the Russian Defence Ministry in 2011. As part of the modernization, submarines will have their 24 P-700 Granit anti-ship missiles replaced with up to 72 newer 3M-54 Kalibr or P-800 Oniks anti-ship cruise missiles. The upgrade requires no design changes to the hull as the new missiles will fit into the existing launchers outside the pressure hull. The modernized boats will also get upgraded Omnibus-M combat information and Simfoniya-3.2 navigation systems, as well as new fire-control system, communications, sonar, radar, and electronic intercept equipment. The modernization aims to bring the submarines up to the same technological level as Russia's next-generation Yasen-class nuclear-powered cruise missile submarines.

Belgorod, Project 09852

Main article: Russian submarine Belgorod

In December 2012, construction began on a special purpose research and rescue submarine, designated Project 09852, and based on the incomplete Project 949A (Oscar II class) submarine Belgorod. The submarine is reportedly designed to carry both manned (e.g. Project 18511 midget submarine) as well as unmanned (e.g. Klavesin-1R) underwater vessels. However, while carrying smaller unmanned underwater vehicles (UUVs) would be possible as-is on an Oscar-class hull, the accommodation of a midget submarine such as Project 18511 Paltus or the even larger Project 10831 Losharik, would probably require a major hull extension in order to accommodate a docking compartment. For example, the length of the submarine BS-64 Podmoskovye was increased by 9 m even though the SLBM missile compartment was completely removed.

Belgorod will be reportedly used as a carrier of the rumored Poseidon (NATO reporting name Kanyon) nuclear-powered, thermonuclear armed unmanned underwater device capable to carry a 100 Mt thermonuclear warhead, with at least four such devices being carried horizontally in place of the 24 P-700 Granit (SS-N-19 Shipwreck) launchers for a total yield of 600 megatonnes of TNT.

It is estimated that Belgorod will be 184 m long which would make it the longest submarine in the world.

On 23 April 2019, Belgorod was floated out of a slipway during a ceremony at the Sevmash shipyard, watched by the President of Russia Vladimir Putin via a TV-link. Further work was to be completed afloat and the submarine was scheduled to start its factory and state trials in 2020 after which it was to be delivered to the Russian Navy. However, this schedule was delayed with sea trials then projected to begin in May 2021. After some delays, sea trials were reported to have started on June 25, 2021. The submarine was delivered to the Russian Navy on 8 July 2022.

Units

Gallery

File:Submarine Oscar class.jpg|This picture clearly displays the arrangement of the hatches in the hull above the missile tubes, on either side of the dorsal fin. Also shown is the opening for the forward hydroplane (currently folded in), as well as the bulge on the top of the fin under which the rescue capsule is located. Although partially obscured by shadow, the seam between the capsule and the fin is faintly visible. File:АПЛ Омск. Парад ВМФ Владивосток 2008.07.25.jpg|K-186 Omsk during 2008 Naval Parade in Vladivostok File:Прибытие атомного подводного ракетного крейсера Северного флота «Орёл» в пункт постоянного базирования 07.jpg|K-266 Orel after completion of its overhaul File:Disassembling of a Soviet submarine.jpg|Disassembling of an Oscar-class submarine at the Zvezdochka shipyard in Severodvinsk, Russia File:Ballistic submarine base-DIA.jpg|Artist impression of a Soviet ballistic missile submarine base during the 1980s

References

Bibliography

• The Encyclopedia Of Warships, From World War Two To The Present Day, General Editor Robert Jackson.

References

1. Podvodnye Lodki, Yu.V. Apalkov, Sankt Peterburg, 2002, {{ISBN. 5-8172-0069-4
2. "ЦАМТО / Новости / До 2025 года Минобороны РФ намерено модернизировать 4 атомные подлодки для ТОФ".
3. Peter Lobner. (July 2018). "Marine Nuclear Power : 1939 – 2018".
4. Siddiqi, Asif. (November 1999). "Staring at the Sea: The Soviet RORSAT and EORSAT Programmes". Journal of the British Interplanetary Society.
5. "data".
6. "SSGN Oscar II Class (Project 949.A) (Kursk) – Naval Technology". naval-technology.com.
7. (12 December 2011). "Атомные подлодки проекта "Антей" пройдут перевооружение".
8. "Russia details ambitious effort to modernise nuclear-powered submarines to bolster order of battle".
9. "Russia initiates multiyear plan to modernise Oscar II SSGNs".
10. (29 September 2016). "Russia to upgrade only part of nuclear-powered Antey submarines".
11. (6 February 2018). "Russia's Pacific Fleet to get four upgraded nuclear subs by 2021".
12. "Oscar 1 class". Military Today.
13. (2 April 2004). "Zvezdochka dismantling two nuclear subs". [[Bellona Foundation]].
14. "China's Noisy Nuclear Submarines » FAS Strategic Security Blog". Fas.org.
15. "Project 949 Granit / Oscar I; Project 949A Antey / Oscar II". [[Federation of American Scientists]].
16. "949 /A Oscar I/II class". warfare.be.
17. "A Mystery In The Deep".
18. "Project 09852".
19. (2012-12-21). "Russia builds deep-sea research submarine". World-nuclear-news.org.
20. "Russia builds nuclear submarine for deep-water research". Barents Observer.
21. "Spy Subs -Project 09852 Belgorod".
22. John Pike. "Project 210 Losharik". Globalsecurity.org.
23. "Russia's new submarine mothership sets sail | IHS Jane's 360".
24. "Barentsobserver".
25. "Analysis - Russian Status-6 aka KANYON nuclear deterrence and Pr 09851 submarine".
26. (12 January 2019). "Russia's nuclear underwater drone is real and in the Nuclear Posture Review".
27. (18 January 2019). "The Truth Behind Russia's 'Apocalypse Torpedo'".
28. (3 May 2017). "Now, Russia builds a submarine even bigger than the Typhoon".
29. (23 April 2019). "Russia floats out first nuclear sub that will carry Poseidon strategic underwater drones".
30. Rogers, James. (2019-04-24). "Russia launches huge 'doomsday' supersub".
31. "Belgorod nuclear submarine carrier with Poseidon nuke drones to serve in Pacific".
32. "Belgorod nuclear sub begins its first sea trials".
33. (8 July 2022). "Shipbuilders deliver special-purpose sub with nuclear-powered drones to Russian Navy".
34. "К-525, "Архангельск" проект 949".
35. "К-206, "Минский комсомолец", "Мурманск" проект 949".
36. "Подводный крейсер К-148, "Краснодар". Проект 949А".
37. "Атомный подводный крейсер К-173 "Красноярск". Проект 949А".
38. "Подводный крейсер К-119, "Воронеж". Проект 949А".
39. "Repair Works Started on SSN Smolensk".
40. Ольга ЕФРЕМОВА - Сайт «Комсомольской правды». (31 December 2013). "Атомоход "Смоленск" в 2014 году посетит Северный полюс".
41. (9 March 2017). "Russia to equip nuclear-powered Oscar-class submarines with Kalibr cruise missiles".
42. "Russia to upgrade only part of nuclear-powered Antey submarines".
43. (October 2022). "Warships of the main classes of the Russian Navy as of 01.10.2022".
44. (6 April 2017). "Подводный крейсер "Орел" отправился к месту базирования".
45. (11 April 2017). "Nuclear-powered Oscar-class submarine returns to Russian fleet".
46. (7 September 2010). "Defense shipyard Zvezda claims RUR 65 mln for repairs of SSGN Omsk". rusnavy.com.
47. (8 April 2011). "Court obliged Pacific Fleet to pay for repair of SSN Omsk". rusnavy.com.
48. "Подводный крейсер К-186, "Омск". Проект 949А".
49. "PRESS-CENTER".
50. "Nuclear submarine Tomsk returns to Kamchatka naval base having completed naval combat training tasks : Ministry of Defence of the Russian Federation".
51. "Nuclear submarine "Omsk" returned to Kamchatka after modernization".
52. (27 January 2022). "Russian Navy to receive Project 09852 submarine Belgorod in summer".
53. (28 June 2021). "Gigantic special mission submarine starts sea trials in White Sea".
54. Sutton, H. I.. "Losharik Spy Submarine Accident Is Still A Problem For Russian Navy".
55. (25 February 2021). "New Details of Russian Belgorod 'Doomsday' Submarine Revealed".
56. [https://defendingrussia.ru/enc/apl_kr/podvodnyje_lodki_projekta_949a_antej-1949/ Лодки с крылатыми ракетами] {{Webarchive. link. (2016-08-13 defendingrussia.ru)
57. "Russia to Complete and Modernize Antei-class Subs".