The Talwar-class frigates or Project 11356 are a class of stealth guided missile frigates designed and built by Russia for the Indian Navy. The Talwar-class guided missile frigates are the improved versions of the Krivak III-class (Project 1135) frigates used by the Russian Coast Guard. The design has been further developed as the for the Russian Navy. Six ships were built in two batches between 1999 and 2013.
Designed by Severnoye Design Bureau, the first batch of ships were built by Baltic Shipyard and the second batch by Yantar Shipyard.Preceded by the Brahmaputra-class frigates, the Talwar-class frigates are said to have semi-stealth features and better armament. The Indian Navy currently has six of these ships and 4 more are under construction including 2 in an Indian shipyard, for which Goa shipyard was selected.
On 17 November 1997, Russia and India signed a $1 billion contract, for three Krivak III-class multi-purpose frigates. The Indian Navy wanted to fill the gap created by the decommissioning of the s until the Project 17-class frigates entered service.
After the signing of the contract, Severnoye Design Bureau began a detail design layout and the shipbuilder, Baltisky Zavod of St. Petersburg, began preparations for their construction. The project involved around 130 suppliers from Russia, India, Britain, Germany, Denmark, Belarus, Ukraine and other countries including over 30 St. Petersburg-based naval design organizations and institutes.
The first frigate, INS Talwar was delivered in May 2002. The second, INS Trishul, was delivered in November 2002 and the third, INS Tabar, in May 2003. The Russian firm delayed the delivery of three frigates by 13 months, 7 months and 11 months respectively. The contract stipulated the levy of liquidated damages for the delays and the same worked out to the equivalent of 38.5 million. This was yet to be recovered as of December 2005.
The Government of India signed a follow-on contract for the purchase of three additional frigates on 14 July 2006. These ships will be built at Yantar Shipyard in Kaliningrad. The first frigate was scheduled for delivery in April 2011. These ships will feature BrahMos supersonic anti-ship cruise missile instead of the Klub-N/3M54TE missile system which was provided to the Talwar, Trishul and Tabar frigates.
In July 2012 India Today announced the start of talks about purchasing three additional Talwar-class frigates (No.7 to No.9).[1] In March 2016, it was reported that India and Russia are still negotiating the purchase of the additional ships.[2]
The Severnoye Design Bureau developed the Project 1135.6 vessel using an earlier Project 1135.1 design, which dated back to the early 1980s. The ship's redesigned topside and hull has a considerably reduced radar cross-section. While the superstructure sides are sloped and relatively clean, the very cluttered topside of the ship cannot be remotely described as having any signature reducing features. These frigates will be the first Indian Navy warships to incorporate some stealth features. The ship's hull is characterized by outward flare and tumblehome, while the superstructure (which forms a continuous junction with the hull) has a large fixed tumblehome angle.
The Talwars features the Zorya designed and Mashproekt (Ukraine) manufactured M7N.1E gas turbine plant which comprises two DS-71 cruise turbines and two DT-59 boost turbines in two engine rooms. The cruising component consists of two DS-71 gas-turbine engines, each rated at 9000hp in forward running, and 1500hp in reverse. Two cruising RO63 two-speed gearboxes and one cruising R1063 auxiliary gearbox which makes it possible to use any of the cruising engines to drive both propeller shafts. A boost component with two DT-59.1 gas-turbine engines, each rated at 19500hp forward running, 4500hp in reverse and two RO58 single-speed reduction gearboxes. The four gas turbines are mounted on isolated cradles which minimize their contact with the hull and thereby considerably reduce the transmission of her vibration and sound.[3]
Electrical power is provided by four 1 MW Wärtsilä WCM-1000 generator sets with Cummins KTA50G3 engines and Kirloskar 1 MV AC generators. The contract for the generators was signed with Wärtsilä Denmark.
The Talwar class can accommodate one Ka-28 Helix-A antisubmarine helicopter or one Ka-31 Helix-B airborne early warning helicopter which can provide over-the-horizon targeting. The vessel can also embark the navalised variant of the indigenous HAL Dhruv.
The frigates are armed with a new 3M-54 Klub anti-ship system with a vertical missile launcher, Shtil-1 multi-channel medium-range surface-to-air missile system (an export version of the SA-N-12 "Grizzly"), a Kashtan anti-aircraft missile and artillery system, a RBU-6000 depth charge launcher and Puma-Universal artillery system. These ships are designed to carry and operate one heavy duty helicopter.
In the main strike role, an eight-cell 3S14E vertical missile launcher is fitted, which accommodates the 3M-54E Klub-N anti-ship missile developed by the Novator Design Bureau. The Agat Research and Production Enterprise has supplied the 3R14N-11356 shipborne fire-control system associated with the Klub-N. The 3M-54E Klub is an 8.22m (26.97feet) long missile using active radar guidance with a range of . It is a three-stage missile in which the terminal stage reaches supersonic velocity (Mach 2.9) when it is approximately 20km (10miles) from its target.
The follow-on order of INS Teg, Tarkash and Trikand are fitted with the BrahMos supersonic cruise missile, which has a range of and moves with the velocity of Mach 3 throughout its flight.[4] [5] [6]
The Shtil-1 SAM system with a 3S-90 missile launcher is fitted forward of the bridge and is armed with the 9M317 (SA-N-12 "Grizzly", navalised SA-17) missile. 24 missiles are carried in a magazine located below deck. Guidance and target illumination for these missiles is provided by four MR-90 Orekh (NATO: Front Dome) radars, which are connected to a command and control post. The SA-N-12 missile uses a combination of inertial guidance and semi-active radar homing to its maximum range of 45km (28miles). The 70kg (150lb) blast-fragmentation warhead is triggered by a radar proximity fuze. The missile's control system and warhead can be adjusted to a specific target following target recognition, which increases hit probability. Eight Igla-1E (SA-16) portable air defence missiles are also carried.
For the CIWS role, two Kashtan air defence gun and missile systems are used. Each system consists of two GSh-30k (AO-18K) six-barreled 30 mm Gatling guns, fed by a link-less mechanism, and two SA-N-11 (navalised variant of the 9M311, SA-19) SAM clusters. The system also includes a storing and reloading system to keep 32 SAMs in container-launchers in the vessel's under-deck spaces. The follow-on order ships Teg, Tarkash and Trikand were fitted with the AK-630 system, replacing the Kashtan system in the earlier ships.[7] After her mid-life refit, Trishul has also been fitted with the AK-630 in place of the Kashtan system.
One 100 mm A-190E gun is fitted forward for use against ship and shore based targets The A-190(E) uses a lightweight gun mount with an automatic gun and fuze setter. Fire control is provided by the 5P-10E Puma FCS. The gun can fire 60 rounds a minute out to a range of 8.2nmi. The weight of each shell is .
INS Trishul had her 100mm gun replaced by a OTO Melara 76 mm SRGM (Super Rapid Gun Mount) naval gun after her refit. The other ships of the class may be similarly modified.
The gun features higher automation of fire preparation and control and employs advanced guided and rocket-assisted long-range and enhanced-lethality projectiles fitted with dual-mode impact/proximity fuzes. Together with the use of the muzzle velocity meter, it is designed to produce increased combat capability. In addition, the gun turret features stealth technology to minimize the radar signature of a ship.
The ships carry the RPK-8 system, which uses a 12 barreled RBU-6000 ASW rocket launcher[8] to fire the 212 mm 90R anti-submarine rocket or RGB-60 depth charges. The firing range is from 600mto4300mm (2,000feetto14,100feetm), and the depth of engagement is up to 1000m (3,000feet).
Two twin 533 mm DTA-53-11356 fixed torpedo tube launchers are fitted amidships and fire the SET-65E/53-65KE torpedoes. The Purga anti-submarine fire-control system provides control for both the RBU-6000 and DTA-53 launchers.
According to some reports, the APSOH (Advanced Panoramic Sonar Hull) hull-mounted sonar is fitted on the vessels. The APSOH sonar performs active ranging, passive listening, auto tracking of targets and classification. Other reports indicate that the BEL HUMSA (Hull Mounted Sonar Array) sonar is fitted. The HUMSA is a panoramic medium-range active/passive sonar system developed by the Naval Physical and Oceanographic Laboratory (NPOL). As a stop gap measure, Russian Bronza (MG-345) hull mounted sonars are installed.
Information released from the Severnoye Design Bureau (SDB) indicate that French towed array sonars (TAS) are also fitted. This is very plausible given that many Indian Navy ships now use French TAS, however INS Talwar shows no signs of such a system. The vessel may also have a Russian SSN-137 Variable Depth Sonar (VDS) with NATO reporting name Steer Hide, providing active search with medium frequency, and the sonar might be license produced in India with Indian designation SSSN-113.[9]
The frigate features the Russian-made TK-25E-5 integrated electronic warfare suite, which comprises a wideband electronic support measures system that has antenna arrays mounted in the superstructure and a multimode jammer. Four KT-216 decoy launchers, forming part of the PK-10 system, are fitted for soft-kill defence. A total of 120 120mm chaff and infrared decoy rounds are carried on board.
Some ships of the class including INS Tabar have had their TK-25E-5 ESM suites replaced with BEL manufactured Varuna ESM systems with their distinctive circular housing located above the Fregat radar.
India and Russia are negotiating for building four more Talwar frigates for the Indian Navy.[10] In September 2016, it was reported that India would acquire two s from Russia and remaining two will be built in India.[11] The deal was signed in October 2016. These frigates are based on the Talwar class and were to be commissioned into the Russian Navy, but after the Ukrainian Conflict, Ukraine refused to supply any more engines for the Russian ships. So far, only two of the six have been commissioned by Russia.[12] In August 2017, the Indian Defence Acquisition Council (DAC) cleared a proposal of Rs 490 crore to buy two gas turbines from Zorya-Mashproekt in Ukraine for the s being built in Russia.[13] [14]
In October 2018, Indian Ministry of Defense signed a deal for US$950 million for procuring two s, Admiral Butakov and Admiral Istomin.[15] [16] The two frigates will be delivered to Indian Navy by 2022.[17] [18]
A contract was signed between Rosoboronexport and Goa Shipyard for the construction of 2 frigates under license on 20 November 2018. The two frigates will be armed with Brahmos missile system and will include a host of Indian equipment and will be delivered by 2027.[19] The contract for the two ships was awarded to Goa Shipyard Limited by the government of India on 30 January 2019.[20]
The two frigates being built at Goa Shipyard will boast much higher indigenous content and will be named Triput class frigate. The new class of ship will feature BHEL made 76mm gun instead of its Russian counterpart, along with other Indian weapon and sensors.[21]
On 11 March 2024, reports emerged that INS Tushil, being built by Yantar Shipyard has started sea trials. The initial Pennant number is 435.[22]
In April 2024, a report suggested that INS Tushil will be delivered to India in September 2024 whereas INS Tamala will be handed over in February 2025. The timeline is on track as of July 2024. The delivery of INS Triput is exepected in 2026 and the next ship shall be delivered after 6 months of the former.[23] [24] [25]
As of July 2024, to conduct acceptance trials for the two frigates being built in Yantar shipyard, a team of around 200 personnel of the Indian Navy are in Russia.[26]
On 23 July 2024, INS Triput was launched by GSL shipyard.[27]
in October 2018, it was announced the frigates Admiral Butakov (renamed INS Tushil) and Admiral Istomin (renamed INS Tamala) would be sold to India under a $950 million contract signed the same month. The last frigate, the former Admiral Kornilov, is to be sold abroad. (Total: 3 ships built for the Russian Navy, 3 ships under construction for sale abroad). In all sense and purpose India should buy Admiral Kornilov also.[28]
| Name | Pennant | Builder | Laid Down | Launched | Commissioned | Homeport | Status |
|---|---|---|---|---|---|---|---|
| Batch 1 | |||||||
| F40 | Baltiysky Zavod | 10 March 1999 | 12 May 2000 | 18 June 2003 | Mumbai | Active | |
| F43 | 24 September 1999 | 24 November 2000 | 25 June 2003 | ||||
| F44 | 26 May 2000 | 25 May 2001 | 19 April 2004 | ||||
| Batch 2 | |||||||
| F45 | Yantar Shipyard | July 2007 | 27 November 2009 | 27 April 2012[29] | Mumbai | Active | |
| F50 | November 2007 | 23 June 2010 | 9 November 2012[30] | ||||
| F51 | 11 June 2008 | 25 May 2011[31] [32] | 29 June 2013[33] | ||||
| Batch 3 | |||||||
| Tushil ex-Butakov | Yantar Shipyard | 13 July 2013 | 28 October 2021 [34] | 2024-end (expected) | Sea trials[35] | ||
| Tamala ex-Istomin | 15 November 2013 | 2025 (expected)[36] | Under Construction | ||||
| Batch 4 (Triput class) | |||||||
| Triput | Goa Shipyard | 29 January 2021[37] | 23 July 2024[38] | October 2026 (expected)[39] | Launched | ||
| TBD | 18 June 2021 | 2027 (expected) | Under Construction[40] | ||||