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Submarines1984–present
Nuclear attack submarine
Akula-class submarine is a nuclear attack submarine. It was built by Komsomolsk-on-Amur Severodvinsk. Reported operators include Soviet Navy Russian Navy Indian Navy.
Technical data
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 110.3 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 110.3 m | Wikipedia contributors | approved |
Akula class
Komsomolsk-on-Amur Severodvinsk
Soviet Navy Russian Navy Indian Navy
Victor class , Sierra class
Yasen class
est. $1.55 billion (1995 dollars)
1983–1999
1984–present
20
15
4 (1 Iribis suspended 42% complete since 1996)
4 (4 active +6 on modernization in Russia)
5 in total.
Nuclear attack submarine
surfaced: 8,140 tons Akula I and Akula I Improved 8,450–8,470 tons Akula II and III submerged: 12,770 tons Akula I and Akula I Improved 13,400–13,800 tons Akula II and III
110.3 m (362 ft) for Akula I and Akula I Improved 113.3 m (372 ft) for Akula II and Akula III
15.4 m (51 ft) for Akula I and Akula I Improved 13.6 m (45 ft) for Akula II and Akula III
9.7 m (32 ft)
one 190 MW OK-650B/OK-650M pressurized water nuclear reactor ( HEU <= 45%) 1 OK-7 steam turbine 43,000 hp (32 MW) 2 OK-2 Turbo generators producing 2 MW 1 seven-bladed propeller 2 OK-300 retractable electric propulsors for low-speed and quiet maneuvering at 5 knots (9.3 km/h; 5.8 mph)
10 knots (19 km/h; 12 mph) surfaced 28–35 knots (52–65 km/h; 32–40 mph) submerged
100 days
480 m (1,570 ft) test depth for Akula I and Akula I Improved 520 m (1,710 ft) for Akula II and III 600 m (2,000 ft) maximum operating depth
73 for Akula I & Improved, 62 (31 officers) for Akula II & III
MGK-540 active/passive suite Flank arrays Pelamida towed array sonar MG-70 mine detection sonar
Bukhta ESM / ECM MG-74 Korund noise simulation decoys (fired from external tubes) MT-70 Sonar intercept receiver Nikhrom-M IFF
4 × 533 mm torpedo tubes (28 torpedoes) and 4 × 650 mm torpedo tubes (12 torpedoes). (K-152 Nerpa has 8 × 533 mm torpedo tubes) 40 torpedoes total 1–3 × Igla-M surface-to-air missile launcher fired from sail (surface use only) Granat cruise missiles, now Kalibr
Chiblis Surface Search radar Medvyeditsa-945 Navigation system Molniya-M Satellite communications MGK-80 Underwater communications Tsunami, Kiparis, Anis, Sintez and Kora Communications antennas Paravan Towed VLF Antenna Vspletsk Combat direction system
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Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Akula-class submarine equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Russia