The ship utelized similar layouts as both classes, but in a smaller more compact scale. Due to the breakup of the Soviet Union in 1991, production of all Akulas slowed. Three additional boats the Belgograd and Kuguar launched in the late 1990s as Akula II class boats. The Akula class was developed in the early 1980's in response to the US Los Angeles class and is considered a quantum leap forward in Soviet submarine technology. However, the induction was postponed to 2009 due to recurred delays caused by the installation of new systems and technologies on Nepra and due to an attack on the latest series of Schucka-B or Akula-II Class Russian-built submarines. The submarine has a double-hulled configuration with a distinctive high aft fin. [16], Three hundred Indian Navy personnel are being trained in Russia for the operation of the Akula II submarine Nerpa. The hull of the “Akula” type II is longer than the type I; 2.5 meters and the weight is increased to 230 tons. The distinctive "bulb" or "can" seen o… Within seconds the halon gas had displaced all breathable air from the compartment. Initially, the Akula II submarine was scheduled to be delivered to India in August 2007. Related: Leak may reveal Russia’s answer to the Virginia class attack submarine. A more subtle improvement is an enlarged main sonar, the same MGK-501 Skat passive array fitted to the larger AKULA Class. The first, Viper, was commissioned in 1995, the second, Nerpa, in December 2000 and the third, Gepard, in August 2001. The Russian Navy has 14 Bars Class project 971 submarines known in the West as the Akula Class nuclear-powered submarine, Amur Shipbuilding Plant, Komsomolsk and Sevmash, Severodvinsk, 28 Stallion and Starfish missiles, mk40 torpedoes, anti-submarine missiles and torpedoes in a range of variants, Strela portable missile – 18 missiles, Automated radio communication system
Combat control information system
General-purpose radar
Active and passive sonar, Commander's periscope
Air defence periscope. At least two more were projected but were not built. A reserve propeller system, powered by two motors rated at 370kW, provides a speed of 3kt to 4kt. One Akula III was built and put in service by the Russian Navy. [11] All were retrofitted with the SOCKS hydrodynamic sensors except Volk. The Vepr was built to further improved Project 971M (or Akula II class). India to get Nerpa Akula-II N-submarine this year: Russian Official 21 Jun, 2011, 10.06 PM IST. The sonar signal processor can detect and automatically classify targets as well as reject spurious acoustic noise sources and compensate for variable acoustic conditions. They have a different arrangement of limber holes on the outer hull than Akula Is. In fact, the Akula is credited with being quieter in a number of areas than even the 688i-series Los Angeles-class boats. More than…, The Borei Class is a Russian fourth-generation nuclear-powered missile submarine. The main machinery consists of a VM-5 pressure water reactor rated at 190MW with a GT3A turbine developing 35MW. While the “Vepr” is an Akula-II class vessel (project 971U), the other four ships belong to the slightly older class Akula-1 (project 971). The missiles are fired from the 533mm torpedo launch tubes. forces, the Akula II prototypes were less threatening, but also harder to combat. The Akula can launch a range of anti-submarine and anti-surface vessel torpedoes. U.S. military sources noted that this was the first known Russian submarine deployment to the western Atlantic since the end of the Cold War, raising concerns within U.S. military and intelligence communities. The Gepard is the most advanced Russian submarine before the submarines of the Severodvinsk and Borei classes are commissioned. Three Akula II submarines, with hull length extended by 4m and advanced machinery-quietening technology, have been built. [6] There are four sub-classes or flights of Shchuka, consisting of the original seven "Akula I" submarines which were commissioned between 1984 and 1990, six "Improved Akula" submarines commissioned between 1991 and 2009, one "Akula II" submarine commissioned in 1995 and one Akula III commissioned in 2001. On 27 October 2008, it was reported that K-152 Nerpa of the Russian Pacific Fleet had begun her sea trials in the Sea of Japan before handover under a lease agreement to the Indian Navy. [37], Podvodnye Lodki, Yu.V. The propulsion system drives a seven-bladed fixed-pitch propeller. Construction of Akula II began in 1991, but it was suspended for a period of ten years due to lack of funds. The Russian Navy currently operates five Akula-class SSN’s in the Pacific and six in the Northern Fleet. This design requires more power than single-hull submarines[citation needed] because of the greater wetted surface area, which increases drag. The submarine is rated for a diving depth to 600m. The 1999–2000 edition of Jane's Fighting Ships incorrectly listed the first Akula-II as Viper (the actual name is "Vepr", "wild boar" in Russian), commissioned November 25, 1995, Gepard (Cheetah), launched 1999 and commissioned December 5, 2001, and Nerpa, laid down in 1993[1] began sea trials in October, 2008 and was commissioned by the Indian Navy as INS Chakra II in April 2012. Martin Searle 546 views. Line drawing showing the starboard side of the Project 971 (Akula) Soviet submarine. The submarine, renamed INS Chakra, was recommissioned by the Indian Navy in April 2012. Improved Akulas, Akula IIs have an additional six 533 mm torpedo tubes mounted externally, capable of launching possibly up to 6 decoys each[citation needed]. The Akula is an attack helicopter based on the Boeing–Sikorsky RAH-66 Comanche, with a canopy that combines the aspects of the Kamov Ka-52 \"Alligator\" (front windows) and the Kamov Ka-50 “Black Shark” (side windows). [12] The Akula-I Improved submarines have 6 533 mm decoy launching tubes, as do subsequent submarines. This design requires more power than single-hull submarines[citation needed]because of the greater wetted surface area, which increases drag. These are where the OK-300 auxiliary propulsion devices are located, which can propel the submarine at up to 5 knots (9.3 km/h). In Occidente sono conosciuti con … Improved Akula-I Hulls: K-328 Leopard, K-461 Volk, K-154 Tigr, K-419 Kuzbass, K-295 Samara and K-152 Nerpa. The Soviet advances in sound quieting were of considerable concern to the West, for acoustics was long considered the most significant advantage in U.S. submarine technology compared to the Soviets. An improved version of the earlier Akula I, the -II is notable for its improved quieting. The class is also known under the name Bars (eng. RBS 15 Gungnir Next-Generation Anti-Ship Missile System, SSBN Borei Class Nuclear-Powered Submarines, DASA awards £3m funding for Intelligent Ship competition, Royal Navy commissions final Batch 2 River-class OPV HMS Spey, US Navy’s FRCE delivers last presidential helicopter engine, Saab to supply mine neutraliser for Anglo-French MMCM programme, BAE Systems to demonstrate new RFCM system for P-8A Poseidon. India to get Nerpa Akula-II N-submarine this year: Russian Official. The 650 mm tubes can be fitted with liners to use the 533 mm weaponry. The distinctive "bulb" or "can" seen on top of the Akula's rudder houses its towed sonar array, when retracted. Apalkov, Sankt Peterburg, 2003, ISBN 5-8172-0070-8, Adm. Boorda, statement at a meeting of the Naval & Maritime Correspondents Circle, Washington, D.C. 27 Feb 1995, "Quieter Soviet subs cost U.S. at least $30 billion", Navy News & Undersea Technology (14 March 1988), Korabli VMF SSSR, Vol. The Akula Mark-II submarine was a heavily-modified Akula-class attack submarine that was armed with a wide array of torpedoes, a stealth drive, and instead of nuclear warheads, its main armament was a massive Gungnir railgun cannon that fired high-explosive conventional warheads, with a blast radius of . As with many Soviet/Russian craft, information on the status of the Akula Class submarines is sparse, at best. India would receive its first new generation Nerpa Akula-II class nuclear attack submarine, which is undergoing sea trials in Russia. Bratsk and subsequent submarines have reactor coolant scoops similar to the ones on the Oscar IIs, short and (the Typhoon, Akula and Oscar classes use the similar OK-650 reactor). Also, it has an enlarged sail and a different towed-array dispenser on the vertical fin. The external tubes are mounted outside the pressure hull in one row, above the torpedo tubes, and can only be reloaded in port or with the assistance of a submarine tender. The Akula Class submarine was deployed for the first time in 1986 by the Soviet Navy. Project 971 Shuka-B Bars-class Akula class Attack Submarine (Nuclear Powered) The Project 971, using a steel hull, was initiated in 1976 when it became evident that existing industrial infrastructure was inadequate to mass produce the expensive titanium hulls of the Project 945 Sierra class. The submarine is also able to use its torpedo tubes to deploy mines. In Russia Akula means Shark. The retractable masts viewed from bow to stern are the periscopes, radar antennae, radio and satellite communications and navigation masts. Si tratta di battelli molto temibili, probabilmente i più moderni sommergibili nucleari d'attacco oggi in circolazione (insieme agli americani Seawolf). The Akula II is approximately 230 tons larger in displacement and 2.5m greater in LOA compared to that of the Akula I's. As a result, 20 people (17 civilians and 3 seamen)[31][32] were killed by asphyxiation. The Akula II is three meters longer and displaces about 700 tons (submerged displacement) more than the Akula I. The torpedo tubes can be used to launch mines instead of torpedoes. The Akula II is some meters longer and displaces about 700 tons (submerged displacement) more than the Akula I. The hull has seven compartments and the stand-off distance between the outer and inner hulls is considerable, reducing the possible inner hull damage. [13] K-157 Vepr became the first Soviet submarine that was quieter than the latest U.S. attack submarines of that time, which was the Improved Los Angeles class (SSN 751 and later). Il risultato di questo sviluppo fu un sottomarino con lo scafo in acciaio, di prestazioni paragonabili ai classe Sierra, ma notevolmente più economico da costruire e da mantenere. The Starfish, fired from the 533mm tubes, has a target range of 45km. pike ', NATO reporting name Akula) are a series of nuclear-powered attack submarines (SSNs) first deployed by the Soviet Navy in 1986. The submarine itself did not sustain any serious damage and there was no release of radiation. The Russian “Akula” type II nuclear attack submarine is an improved version of the “Akula” type I. The added space was used for additional quieting measures. U.S Navy officials and Congressmen announced that this technology enabled the Soviet submarine builders to produce more accurate and quieter propellers.[15]. The added space was used for additional quieting measures. Senator John Cornyn of the Senate Armed Services Committee demanding details of this deployment from Admiral Jonathan W. Greenert, the Chief of Naval Operations. [34], In August 2009, the news media reported that two Akula-class submarines operated off the East Coast of the United States, with one of the submarines being identified as a Project 971 Shchuka-B type. One of the pods is offset to port and the other to starboard. snow leopard). Most Akulas have the SOCKS[citation needed] hydrodynamic sensors, which detect changes in temperature and salinity. The four known variants within the Akula class. hauki, Nato-raportointinimi Akula) ovat Venäjän laivaston ydinkäyttöisiä hyökkäyssukellusveneitä.. Projekti 971-luokan aluksia on Venäjän laivastolla 14. Northern Fleet. Pacific Fleet, removed from active service, Since 2008 undergo overhaul and modernization. [14] Two of these submarines were used to build the Borei class SSBNs. [8][9] The lead boat of the class, K-284 'Akula' was decommissioned in 2001, apparently to help save money in the cash-strapped Russian Navy. Capabilities: The armament of the Akula II is identical to the original Akula class subs. The Akula II is some meters longer and displaces about 700 tons (submerged displacement) more than the Akula I. E’ certamente una dotazione insolita per un boomer, ma è la medesima degli Akula. The MGK-501 Skat sonar system on Akula-I is replaced to a new MGK-540 Skat-3 sonar system,. This allows more freedom in the design of the exterior hull shape, resulting in a submarine with more reserve buoyancy than its western analogs. It is intended to eventually replace the ageing Delta III…, Type 23 Duke class frigates are multi-role warships built by Swan Hunter and BAE Systems for the UK’s Royal Navy.…, Get important industry news and analysis sent to your inbox – sign up to our e-Newsletter here, "Three Akula II submarines, with advanced machinery-quietening technology, have been built. [30] On 8 November 2008, while conducting one of these trials, an accidental activation of the halon-based fire-extinguishing system took place in the fore section of the vessel. Engel Akula II RC Submarine Bath Test - Duration: 1:39. [33] This was the worst accident in the Russian navy since the loss of the submarine K-141 Kursk in 2000. Construction halted at 60% completion. Whereas the Russian Navy's Akula-II could be equipped with 28 nuclear-capable cruise missiles with a striking range of 3,000 km (1,620 nmi; 1,864 mi), the Indian version was reportedly expected to be armed with the 300 km (162 nmi; 186 mi)-range 3M-54 Klub nuclear-capable missiles. K-335 Gepard is the only completed Akula III (see table for others)[citation needed](There is no AKULA III NATO classification). The CEP value is a measure of the accuracy of strike on the target and is the radius of the circle within which half the strikes will impact. Construction of Akula II began in 1991, but it was suspended for a period of ten years due to lack of funds. 2:16. The very low acoustic signature has been achieved by incremental design improvements to minimise noise generation and transmission – for example, the installation of active noise cancellation techniques.