Scorpène-class submarine
![]() Scorpène class profile
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![]() Indian Navy's INS Kalvari at sea
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Class overview | |
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Name | Scorpène class |
Builders | |
Operators | |
Preceded by | Agosta class |
Succeeded by | |
Subclasses |
|
Cost | US$450 million |
Built | 1999–present |
In commission | 2005–present |
Planned | 20 |
Building | 1 |
Completed | 13 |
Cancelled | 4 |
Active | 12 |
General characteristics | |
Type | Submarine |
Displacement | |
Length |
|
Beam | 6.2 m (20 ft 4 in) |
Draft | 5.8 m (19 ft 0 in) |
Propulsion |
|
Speed |
|
Range |
|
Endurance |
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Test depth | >350 m (1,150 ft)[2] |
Complement | 31 |
Armament | 6 × 533 mm (21 in) torpedo tubes for 18 Whitehead Alenia Sistemi Subacquei Black Shark heavyweight torpedoes, SM-39 Exocet anti-ship missiles, and A3SM (MICA) anti-air missiles and 30 mines in place of torpedoes |
The Scorpène-class submarines are a class of diesel-electric attack submarines jointly developed by the French Naval Group (formerly the DCNS) and the Spanish company Navantia. It features diesel propulsion and an additional air-independent propulsion (AIP). It is now marketed as the Scorpène 2000.
Scorpène characteristics
[edit]The Scorpène class of submarines has three subtypes:[3]
- CM-2000 - conventional diesel-electric version 61.7 meters long.
- AM-2000 - air-independent propulsion (AIP) derivative.
- MESMA AIP, length stretched to 70 meters.
- CA-2000 - downsized version for coastal missions.
- S-BR - Brazilian Navy[4] variant, a CM-2000 stretched to 70.62 meters to accommodate more batteries.
The Chilean and Malaysian boats are fitted with the TSM 2233 Mk 2 sonar. The class can also be fitted with a 'S-Cube' sonar suite from Thales.[5]
Air-independent propulsion
[edit]The French Module d'Energie Sous-Marine Autonome (MESMA) system is being offered by the French shipyard Naval Group for the Scorpène-class submarines. It is essentially a modified version of their nuclear propulsion system with heat being generated by ethanol and oxygen. The combustion of the ethanol and stored oxygen, at a pressure of 60 atm (6.1 MPa), generates steam which powers a conventional turbine power plant. This pressure-firing allows exhaust carbon dioxide to be expelled overboard at any depth without an exhaust compressor.
Each MESMA system costs around US$50–60 million. As installed on the Scorpènes, it requires adding a new 8.3-metre (27 ft), 305-tonne hull section to the submarines, and enables a submarine to operate for more than 21 days under water depending on speed.
Naval Group is also developing second-generation hydrogen fuel cell AIP modules for future Scorpène models.
Scorpène information leak
[edit]In mid-August 2016, The Australian newspaper published documents containing old technical information about the Scorpène submarines and reported that design details of the Scorpène-class submarine and other ships had been leaked.[6] The leaked information spreads over 22,400 pages and includes detailed information about the submarine's combat and stealth capabilities.[7] The leak also included information about noise levels, submarine frequencies and more.[8] Despite all the information leaks, Indian Navy chief Admiral Sunil Lanba was quoted as saying that the leaks were being viewed "very seriously", but were "not a matter of much worry".[9] The report also suggested that an ex-French Navy officer working as a sub-contractor for Naval Group may have been the source of the leak, and that the leaked data may have been written in France in 2011.[10] However, on 30 August 2016, a court in New South Wales temporarily banned The Australian from releasing any more confidential data on the Indian Scorpène-class submarines.[11]
Naval Group filed a complaint against the newspaper with the Supreme Court of the State of New South Wales in Australia. The Australian court ruled in favour of Naval Group on 29 August and confirmed its decision on 1 September.[12]
Operators
[edit]Current operators
[edit]Chile
[edit]![](http://up.wiki.x.io/wikipedia/commons/thumb/5/55/Submarino_General_Carrera_%28SS-22%29.jpg/220px-Submarino_General_Carrera_%28SS-22%29.jpg)
The Chilean Navy ordered two Scorpène-class boats, which replaced two Oberon-class submarines retired by the Chilean Navy. The Chilean Scorpène-class O'Higgins and Carrera were completed in 2005 and 2006, respectively.
Malaysia
[edit]![](http://up.wiki.x.io/wikipedia/commons/thumb/d/d4/Scorpene_Tunku_Abdul_Rahman.jpg/220px-Scorpene_Tunku_Abdul_Rahman.jpg)
In 2002, Malaysia ordered two Scorpène-class boats worth €1.04 billion (about RM4.78 billion). Both boats Tunku Abdul Rahman and Tun Abdul Razak commissioned by Royal Malaysian Navy in 2009.
India
[edit]![](http://up.wiki.x.io/wikipedia/commons/thumb/3/3d/First_torpedo_firing_trials_of_INS_Kalvari_%28S50%29_-_1.jpg/220px-First_torpedo_firing_trials_of_INS_Kalvari_%28S50%29_-_1.jpg)
In 2005, India chose the Scorpène design; purchasing six submarines for US$3 billion (US$500 million per boat). Under a technology transfer agreement, the state-owned Mazagon Docks in Mumbai was to manufacture the submarines, and deliver them between 2012 and 2016, however the project is running six years behind schedule.[13][14] Construction started on 23 May 2009.[5] In August 2016, over 20,000 confidential pages of the submarine's manual were leaked by Australian media,[15] stirring up a controversy about the impact to India's ambitions of fielding a blue-water navy.[16]
Naval Group answered that those documents were not crucial.[17] After extensive sea trials, Kalvari was commissioned into the Indian Navy on 14 December 2017.[18]
India's Defence Procurement Board (DPB) (a part of the Ministry of Defence) green lit the acquisition of 3 additional boats on 10 July 2023. Following this, the Defence Acquisition Council (DAC) cleared the proposal on 13 July 2023. The deal was expected to be signed during Prime Minister Narendra Modi's visit to France on Bastille Day, 14 July 2023. However, no such deal was signed and the deal is now expected to be signed by end of 2024 with the deliveries beginning by 2031.[19][20][21][22]
Brazil
[edit]![](http://up.wiki.x.io/wikipedia/commons/thumb/1/17/S40_Riachuelo.png/220px-S40_Riachuelo.png)
![](http://up.wiki.x.io/wikipedia/commons/thumb/0/03/Submarino_%E2%80%9CHumait%C3%A1%E2%80%9D_%28S41%29_realiza_primeiro_teste_de_propuls%C3%A3o_no_mar_-_52573393494.jpg/220px-Submarino_%E2%80%9CHumait%C3%A1%E2%80%9D_%28S41%29_realiza_primeiro_teste_de_propuls%C3%A3o_no_mar_-_52573393494.jpg)
In 2009, Brazil purchased four enlarged Scorpènes for US$10 billion with a technology transfer agreement and a second agreement to develop a French/Brazilian nuclear-powered submarine. The Brazilian submarine class was given the designation Riachuelo class. The hull of the first S-BR (S40) was laid down at Cherbourg on 27 May 2010 and is to be jumboized at the Brazilian Navy Shipyard in Sepetiba in late 2012.[23] The latter three submarines will be built there entirely, and are planned to be commissioned in 2020, 2021, and 2022. The nuclear-powered submarine Álvaro Alberto is under construction since 2018, with scheduled launch for 2027.[24]
The first submarine Riachuelo was launched on 14 December 2018, and began sea trials in September 2019.[25] All the submarines are built by the Brazilian defence company Itaguaí Construções Navais.
Future operators
[edit]Indonesia
[edit]As of 2021[update], Indonesia is still considering purchasing a Riachuelo-class submarine, the Scorpène variant constructed for Brazil. Talks for such a purchase started as early as 2016.[26] On 7 June 2021, Indonesia signed a letter of intent to buy six Scorpène-class submarines and weapons packages from France.[27] On 10 February 2022, the Indonesian Minister of Defence Prabowo Subianto and his French counterpart Florence Parly witness the signing of Memorandum of Understanding (MoU) between Kaharuddin Djenod, CEO of PT. PAL and Pierre Eric Pommellet, CEO of Naval Group on cooperation in research and development between PT. PAL and Naval Group regarding the plan to purchase Six Scorpène submarines with AIP (Air-independent Propulsion) along with weapons and spare parts as well as training.[28][29][30] In October 2023, Naval Group renewed its proposal by offering the latest variant called Scorpene Evolved equipped with a complete lithium-ion battery (LIB) setup, enabling it to operate for 80 days without resurfacing and travel over 8,000 nautical miles. Scorpene Evolved boasts a reduced acoustic signature and can sustain its maximum speed for extended periods, distinguishing it from the previous variants. Approximately one-third of the total contract value, estimated at about $2.1 billion, will return to Indonesia through offsets and other collaboration initiatives. The offer scheme includes a whole local production.[31] In April 2024, Naval Group confirmed that Indonesia signed a contract order for two Scorpene Evolved submarines, which will be built in Indonesia.[32][33]
Potential operators
[edit]Egypt
[edit]Talks are still ongoing between Egypt and Naval Group regarding the procurement of the Scorpène 2000-class submarine along with a transfer of technology (TOT) agreement. The report also states that the deal may include four submarines, with an option for two more.[34]
Philippines
[edit]In December 2019, Secretary of National Defense of Philippines Delfin Lorenzana announced that the Scorpène-class submarine of France fits the requirements of the Philippine Navy. Lorenzana visited a Scorpène-class submarine when he visited France.[35] On 18 December 2019, Lorenzana said that the Philippines is one step closer to acquiring the French submarine after signing an agreement with France sought to enhance both country's maritime defense.[36] In January 2020, Philippine and French Navy conducted an expert exchange on a submarine to enhance members in the submarine's information about the submarine proper.[37] In July 2023, Naval Group presented its submarine package that includes a submarine base in Subic's Agila Shipyard and training of personnel, aside from getting the project funded by a long term loan arrangement.[38] The submarines are likely patterned from Brazil's Riachuelo-class variant.[39]
Poland
[edit]Naval Group participate in the “Orka” submarine procurement programme pursued by the Polish Navy.[40][41][42][43]
Romania
[edit]As of 2022[update], Romania is considering purchasing two Scorpène-class submarines from the French.[44]
Failed bids
[edit]Spain
[edit]In 2003, the Spanish government ordered four Scorpène AIP submarines worth €1,756 million.[45] However, the Spanish Navy cancelled the order, and ordered four S-80-class submarines, instead. This has caused conflicts and controversies between Naval Group and Navantia, as the latter is still involved in the construction of the submarines sold to India, Malaysia, and Chile, while the S-80 is offered on the export market.[46] As an answer to the competition from the S-80, Naval Group designed its own enhanced version of the Scorpène called the Marlin class, but little is known about this design and the Scorpène is still offered by France on the export market. The dispute was settled when Navantia gave up export rights on the Scorpène class, leaving Naval Group with sole responsibility for the project.[47]
Poland
[edit]On 1 March 2011, the Naval Shipyard Gdynia of Poland and Naval Group offered a license to build a yet undisclosed number of modified Scorpène-class boats. The Scorpène design is competing with that of the German Type 214 submarine.[48]
Norway
[edit]In December 2016, the Norwegian Ministry of Defence announced that Norway would sign a contract for four new submarines before the end of 2019. These would either be Scorpène vessels from Naval Group or German U-boats from ThyssenKrupp. Norway would also be looking into possible cooperation on maintenance and construction with other potential buyers of the same submarines, such as Poland or the Netherlands.[49][50] In February 2017, the Norwegian Government announced that it intended to procure its new submarines from the German manufacturer, ThyssenKrupp. Norway and Germany will buy submarines together to mutualize expenses. In practice the tender was cancelled and exclusive government to government negotiations were initiated.
Units
[edit]Name | Pennant no. | Laid down | Launched | Commissioned | Homeport |
---|---|---|---|---|---|
![]() | |||||
O'Higgins | SS-23 | 18 November 1999 | 1 November 2003 | 8 September 2005 | Talcahuano |
Carrera | SS-22 | November 2000 | 24 November 2004 | 20 July 2006 | Talcahuano |
![]() | |||||
KD Tunku Abdul Rahman | - | 25 April 2004 | 23 October 2007 | January 2009 | Sepanggar |
KD Tun Abdul Razak | - | 25 April 2005 | October 2008 | December 2009 | Sepanggar |
![]() | |||||
Kalvari | S-21 | 1 April 2009 | 6 April 2015 [51] | 14 December 2017[18][52] | Visakhapatnam / Mumbai |
Khanderi | S-22 | October 2011 | 12 January 2017[53] | 28 September 2019[54][55] | Visakhapatnam / Mumbai |
Karanj | S-23 | December 2012 | 31 January 2018[56] | 10 March 2021[57] | Visakhapatnam / Mumbai |
Vela[58] | S-24 | — | 6 May 2019[59] | 25 November 2021[60] | Visakhapatnam / Mumbai |
Vagir[58] | S-25 | — | 12 November 2020[61] | 23 January 2023[62][63][64] | Visakhapatnam / Mumbai |
Vagsheer[58] | S-26 | — | 20 April 2022[65] | Visakhapatnam / Mumbai | |
![]() | |||||
Riachuelo | S40 | 27 May 2010[23] | 14 December 2018[66] | 1 September 2022[67] | Madeira Island, Itaguaí |
Humaitá | S41 | 9 September 2013[68] | 11 December 2020[69] | 12 January 2024[70] | Madeira Island, Itaguaí |
Tonelero | S42 | 13 January 2015[71] | 27 March 2024[72] | TBD | Madeira Island, Itaguaí |
Angostura | S43 | 2018 | December 2022 (expected)[73] | TBD | Madeira Island, Itaguaí |
Gallery
[edit]-
Image of Scorpène class
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Chilean Navy's Scorpène class
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Royal Malaysian Navy's Scorpène class at a Navantia shipyard prior to delivery
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Launching of the Brazilian submarine Riachuelo, Scorpène class
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Launching of the Brazilian submarine Humaitá, Scorpène class
Scorpène 1000
[edit]See also
[edit]Submarines of similar comparison
- Type 212 submarine - A class of diesel-electric attack-submarines developed by ThyssenKrupp Marine Systems and exclusively built for the German Navy, the Italian Navy and the Royal Norwegian Navy.
- Type 214 submarine - A class of export-oriented diesel-electric attack-submarines, also developed by ThyssenKrupp Marine Systems and currently operated by the Hellenic Navy, the Portuguese Navy, the Republic of Korea Navy and the Turkish Naval Forces.
- Type 218SG submarine - A class of extensively-customised diesel-electric attack-submarines developed ThyssenKrupp Marine Systems and currently operated by the Republic of Singapore Navy.
- Dolphin-class submarine - A class of extensively-customised diesel-electric attack-submarines developed by ThyssenKrupp Marine Systems and currently operated by Israel.
- Dakar-class submarine - A unique class of diesel-electric attack-submarines developed by ThyssenKrupp Marine Systems and currently being built for Israel.
- S-80 Plus submarine - A class of conventionally-powered attack-submarines, currently being built by Navantia for the Spanish Navy.
- Blekinge-class submarine is a class of submarine developed by Kockums for the Swedish Navy
- KSS-III submarine - A class of diesel-electric attack and ballistic missile submarines, built by Hanwha Ocean and HD Hyundai Heavy Industries and operated by the Republic of Korea Navy.
- Sōryū-class submarine - A class of diesel-electric attack-submarines, built by Mitsubishi Heavy Industries for the Japan Maritime Self-Defense Force.
- Taigei-class submarine - A class of diesel-electric attack submarines currently being built by Mitsubishi Heavy Industries and Kawasaki Heavy Industries for the Japan Maritime Self-Defense Force
- Type 039A submarine - A class of diesel-electric attack-submarines operated by the People's Liberation Army Navy (China) and being built for the navies of the Royal Thai Navy and the Pakistan Navy.
- Lada-class submarine - A class of diesel-electric attack-submarines being built for the Russian Navy.
- Hai Kun-class submarine - A class of diesel-electric attack-submarines currently being built by CSBC for Taiwan.
References
[edit]- ^ a b "Submarino "Riachuelo" reforça a soberania do País na Amazônia Azul". Brazilian Navy (in Portuguese). 1 September 2022.
- ^ "Scorpene® 1000". DCNS. Archived from the original on 15 September 2014. Retrieved 24 October 2015.
- ^ "The Market for Submarines" (PDF). Forecast International. August 2009. Archived from the original on April 17, 2012. Retrieved 13 May 2010.
- ^ "Novas pistas sobre o 'S-BR', o novo submarino convencional Brasileiro". www.naval.com.br. 6 May 2010. Archived from the original on 22 April 2010. Retrieved 13 May 2010.
- ^ a b "Project 75 – Scorpene SSK". bharat-rakshak.com. Archived from the original on 30 March 2009. Retrieved 28 March 2020.
- ^ Siegel, Matt; Irish, John (24 August 2016). "France's DCNS says India submarine data leak may be 'economic warfare'". Reuters. Archived from the original on 15 July 2017.
- ^ Laskar, Rezaul H (24 August 2016). "Secret data on Indian Navy's Scorpene-class submarines leaked". Hindustan Times. Archived from the original on 26 August 2016.
- ^ Stewart, Cameron (25 August 2016). "What the Scorpene leak reveals". The Indian Express. Archived from the original on 29 August 2016.
- ^ "Scorpene Leak serious, not a matter of worry, says Navy Chief". The New Indian Express. Archived from the original on 2016-08-31. Retrieved 2016-08-30.
- ^ "French ex-naval officer behind Scorpene leak?". The Times of India. Archived from the original on 2016-08-29. Retrieved 2016-08-30.
- ^ Som, Vishnu. "Scorpene Leak: 'The Australian' Can't Release Confidential Data, Says Court". NDTV. Archived from the original on 2016-08-30. Retrieved 2016-08-30.
- ^ Genevelle, Eric (2020). La véritable histoire des bateaux sous-marins, de 1945 à nos jours. Des auteurs des livres. p. 235. ISBN 978-2-36497-046-5.
{{cite book}}
: CS1 maint: location missing publisher (link) - ^ Kulkarni, Neha (7 September 2018). "Mazagon Dock to deliver second Scorpene class submarine by year end". the Indian Express. Archived from the original on 5 December 2018. Retrieved 28 December 2018.
- ^ Pandit, Rajat (28 August 2014). "Defence minister Arun Jaitley reviews delayed Scorpene submarine project". The Times of India. Archived from the original on 29 August 2014. Retrieved 24 October 2015.
- ^ Som, Vishnu. "The $3.5 Billion Leak: Scorpene Submarines Exposed, India Assesses Damage". NDTV. Archived from the original on 2016-08-26.
- ^ Joshi, Shashank. "Understanding Scorpene leak: Why India's next-gen subs are now vulnerable". Hindustan Times. Archived from the original on 2016-08-26. Retrieved 2016-08-26.
- ^ Pommier, Sébastien. "Fuite de documents chez DCNS: "Nous sommes en guerre économique"". L'Express (in French). Archived from the original on 2016-08-26. Retrieved 2016-08-26.
- ^ a b "Scorpene-class submarine Kalvari, built in Mazagon Dock, inducted into Navy". Archived from the original on 2017-12-14. Retrieved 2017-12-14.
- ^ Peri, Dinakar. "Contract for three more Scorpene submarines likely by end-2024; first delivery expected by 2031". The Hindudate=2023-07-25.
- ^ "DAC approves proposals for procurement of 26 Rafale Marine aircraft from France to boost Indian Navy's operational capabilities". PIB (Press release). 2023-07-13.
- ^ Ghosh, Sanchari (2023-07-10). "PM Modi to ink deal with France to acquire 26 Rafale-M fighters, three attack submarines". The Mint.
- ^ "India Likely To Buy 26 Rafales, 3 Scorpene Subs During PM's France Visit". NDTV. 2023-07-10.
- ^ a b Nicolas von Kospot (2 June 2010). "First Steel Cut for Brazilian Submarine Programme". www.defpro.com. Archived from the original on July 17, 2011. Retrieved 7 June 2010.
- ^ "O Prosub e o submarino nuclear brasileiro SN-BR" (in Portuguese). Poder Naval. 20 February 2018.
- ^ "Submarino Riachuelo inicia provas de mar" (in Portuguese). Poder Naval. 25 September 2019.
- ^ Rahmat, Ridzwan (2 December 2020). "Indonesia in talks with Naval Group for variant of Riachuelo-class submarine". Janes. Retrieved 2021-03-08.
- ^ GDC (2021-08-02). "Indonesia signed a letter of intent to acquire 36 Rafale fighter jets from France". Global Defense Corp. Retrieved 2021-08-02.
- ^ GDC (2022-02-13). "Indonesia Purchased Six Scorpene-Class Submarines From France". Global Defense Corp. Retrieved 2022-02-14.
- ^ Manaranche, Martin (2022-02-10). "Naval Group and PT PAL ink MoU with Submarine Deal in Sight". Naval News. Retrieved 2022-02-10.
- ^ Rachmalia, Mira. "Top RI! Bukan Cuma Rafale, Kapal Selam Scorpene Juga Diborong". CNBC Indonesia (in Indonesian). Retrieved 2022-02-10.
- ^ Malufti, Fauzan (2024-03-29). "Indonesia Moving Closer to 'Scorpene Evolved' Submarine Deal". Naval News. Retrieved 2024-04-02.
- ^ Naval Group [@navalgroup] (April 2, 2024). "Naval Group and @PTPAL_INDONESIA have signed a contract with @Kemhan_RI for two 'Scorpène® Evolved' LiB submarines, to be built in Indonesia through ToTs from Naval Group in order to strengthen the capabilities of the @_TNIAL_" (Tweet). Retrieved 3 June 2024 – via Twitter.
- ^ "Naval Group and PT PAL have signed a contract with Indonesia for 2 locally built Scorpène® Evolved Full LiB submarines". Naval Group. Retrieved 2024-04-02.
- ^ Chatila, Nisreen (2023-04-23). "مصر تتجه لشراء غواصات جديدة.. هل ستختار "سكوربين 2000" أم "تايب 209"؟". Defense Arabia (in Arabic). Retrieved 2024-08-30.
- ^ Nepomuceno, Priam (December 3, 2019). "French-made Scorpene submarine ideal for PH: Lorenzana". www.pna.gov.ph. Retrieved 2020-05-07.
- ^ Sadongdong, Marin (December 18, 2019). "PH a step closer to acquiring first submarine". Manila Bulletin.
- ^ Tiamzon, Gaile (January 13, 2020). "France, PHL navies hold expert exchange on submarine". Mintfo. Retrieved 2020-05-07.
- ^ Mangosing, Frances (17 July 2023). "France ramps up naval ties with PH". Inquirer.net. Archived from the original on 2 August 2023. Retrieved 29 August 2023.
- ^ "Updates on the Philippine Navy's Submarine Acquisition Project". Pitz Defense Analysis. 28 August 2023. Retrieved 29 August 2023.
- ^ https://defence24.com/industry/polish-orka-submarine-procurement-gains-weight-and-bids
- ^ https://navyrecognition.com/index.php/naval-news/naval-news-archive/2023/july/13363-poland-decides-to-restart-orka-submarine-acquisition-program.html
- ^ https://www.navalnews.com/naval-news/2023/06/orka-reactivation-which-submarines-for-poland/
- ^ https://www.defensenews.com/industry/2023/09/12/asian-european-players-compete-for-polish-submarine-order/
- ^ "Romania's Submarine Ambitions". www.navalnews.com. Retrieved 2022-07-20.
- ^ "Scorpene Basic-AIP". Deagel.com. Archived from the original on 23 September 2015. Retrieved 24 October 2015.
- ^ "Scorpène: DCNS et Navantia en instance de divorce". Mer et Marine. Archived from the original on September 29, 2011. Retrieved 2011-12-28.
- ^ Ruello, Alain. "Sous-marins : DCNS et Navantia reprennent leur liberté". Les Echos (in French). Archived from the original on 2017-10-09. Retrieved 2017-02-10.
- ^ Sowula, Sławomir (March 2011). "Gdyńska stocznia chce budować okręty podwodne". Gazeta Wyborcza (in Polish) (2011–03–03). Archived from the original on 7 March 2011. Retrieved 24 October 2015.
- ^ "Nye ubåter - status desember 2016". Norwegian government. Archived from the original on 10 January 2017. Retrieved 9 January 2017.
- ^ "Dette kan avgjøre ubåtkjøpet". aldrimer.no. 9 January 2017. Archived from the original on 10 January 2017. Retrieved 9 January 2017.
- ^ "New India submarine enters water". BBC News. 6 April 2015. Archived from the original on 24 September 2015. Retrieved 24 October 2015.
- ^ "Scorpenes no more". Archived from the original on 2017-03-18. Retrieved 2017-03-20.
- ^ "Second Scorpene class submarine Khanderi to be launched on Jan 12". The Economic Times. Archived from the original on 2017-01-12. Retrieved 2017-01-09.
- ^ "India's second Scorpene-class sub INS Khanderi's induction delayed". The Week. 16 May 2019. Archived from the original on 17 May 2019. Retrieved 27 May 2019.
- ^ "Aero India 2019: India to receive second Scorpene-class submarine by April 2019". Jane's 360. Jane's Navy International. 21 February 2019. Archived from the original on 22 February 2019. Retrieved 22 February 2019.
- ^ "Third Scorpene submarine 'Karanj' Launched at Mazagon Docks". pib.nic.in. Archived from the original on 2018-02-01. Retrieved 2018-01-31.
- ^ Desk, India com News (2021-03-10). "INS Karanj, 3rd Scorpene-Class Submarine Commissioned Into Indian Navy | See Pictures". India News, Breaking News | India.com. Retrieved 2021-03-10.
{{cite web}}
:|last=
has generic name (help) - ^ a b c "INS Karanj boosts Navy's firepower". The Hindu. Retrieved 2018-01-31.
- ^ "INS Vela: Indian Navy's 4th Scorpene-class made in India submarine launched". Financial Express. Archived from the original on 6 May 2019. Retrieved 6 May 2019.
- ^ @livefist (2021-11-15). "Indian Navy to commission fourth Scorpene submarine VELA into service on Nov 25" (Tweet) – via Twitter.
- ^ "Indian Navy gets fifth Scorpene-class submarine 'INS Vagir'". www.timesnownews.com. Retrieved 2020-11-12.
- ^ "INS Vagir, 5th submarine of Kalvari class, commissioned into Indian Navy". www.hindustantimes.com. 23 January 2023.
- ^ Dominguez, Gabriel; Bedi, Rahul (10 March 2021). "Indian Navy commissions third Kalvari (Scorpène)-class submarine". Janes. Retrieved 13 March 2021.
- ^ "Mazagon Dock to deliver second Scorpene class submarine by year end". The Indian Express. 7 September 2018. Archived from the original on 13 September 2018. Retrieved 12 September 2018.
- ^ "LAUNCH OF SIXTH SCORPENE SUBMARINE 'VAGSHEER' AT MAZAGON DOCK LIMITED (MDL), MUMBAI" (Press release). PIB. 2022-04-20.
- ^ "Brazil launches first of 5 navy attack submarines". EFE. 14 December 2018.
- ^ "Submarino "Riachuelo" reforça a soberania do País na Amazônia Azul". Brazilian Navy (in Portuguese). 1 September 2022.
- ^ "Cortada a primeira chapa do segundo submarino do PROSUB, o futuro 'Humaitá'" (in Portuguese). Poder Naval. 9 September 2013.
- ^ "Submarino Humaitá (S 41) – Falta muito pouco para ser lançado ao mar". Defesa Aérea & Naval (in Portuguese). 2 December 2020. Retrieved 3 December 2020.
- ^ "VÍDEO: Cerimônia de Mostra de Armamento do Submarino 'Humaitá' – S41" (in Portuguese). Poder Naval. 12 January 2024. Retrieved 12 January 2024.
- ^ "Nuclep entrega nova seção do Submarino Tonelero". ABINDE. 28 June 2017.
- ^ "Tonelero: saiba como é o submarino lançado por Lula e Macron no RJ". G1. 27 March 2024.
- ^ "LAAD 2017: Brazilian submarine programme moves into construction". IHS Jane's 360. 11 April 2017. Archived from the original on 13 April 2017. Retrieved 10 February 2018.