Tag Archives: Scorpène

Brazilian Scorpène

On Thursday September 1st, the first of the four Scorpène submarines of the ProSub program was commissioned by the Brazilian Navy. The Riachuelo (S40) has been built entirely in Brazil by Itaguaí Construções Navais (ICN) thanks to a Transfer of Technology programme from Naval Group. The ceremony took place at the Itaguaí Naval base.

Riachuelo (S40)
Delivery and commissioning of the Riachuelo, the first Brazilian Scorpène submarine entirely made in Brazil

Launched in December 2018, the Riachuelo successfully completed her sea trials and has now been delivered and entered into service within the Brazilian Navy.

Pierre Éric Pommellet, CEO of Naval Group said: «The commissioning of the Riachuelo is a major milestone for the Brazilian Navy, ICN, Naval Group and all our partners. She will bring new capabilities to the Brazilian Navy for decades to come. The successful delivery of the Riachuelo, the first Scorpene submarine entirely built in Brazil is proof of the success of Naval Group’s transfer of technology. We are proud to be part of the ProSub program and remain fully committed to deliver the three other units of the series».

In Brazil, Naval Group went further than ever before in terms of transfer of technology. The Scorpène submarines are manufactured and assembled in the shipyard built in Itaguaí by Itaguaí Construções Navais, the group’s joint venture with Novonor. Humaitá (S41), the second submarine of the series launched in December 2020, will start her trials in September 2022.

ICN employs more than 1,700 Brazilian employees. Naval Group has selected and qualified many local suppliers who have joined its supply chain for the ProSub contract but also for other business opportunities. In this way, the company’s partners can have access to new markets by putting forward the know-how and experience acquired through the program. Naval Group thus contributes to the development of a robust Brazilian naval industrial ecosystem. Hundreds of Naval Group employees are also working in the back office on all French sites.

 

Naval Group, a long-term partner of Brazil

In 2009, within the framework of the French-Brazilian strategic defence cooperation agreement, the Brazilian Navy chose Naval Group for its Programa de desenvolvimento de Submarinos, the ProSub program. Brazil decided to reinforce its submarine force with four new conventional submarines (SSK) and the development of an indigenous nuclear-powered submarine (SSN).

Through an unprecedented transfer of technology, Naval Group is working with Brazil to build and operate four conventional Riachuelo-class submarines (Scorpène type) in a new shipyard and operational naval base built in Itaguaí for this purpose.

 

Scorpène, a modern, high-performant, and stealthy submarine

The Scorpène is a 2000-tons conventional submarine designed by Naval Group for all types of missions, such as anti-surface warfare, anti-submarine warfare, long-range strikes, special operations or intelligence gathering. Extremely stealthy and fast, it has a level of operating automation that allows a limited number of crew, which reduces its operating costs significantly. Its combat edge is highlighted by the fact that it has 6 weapon launching tubes, 18 weapons (torpedoes, missiles).

With 14 submarines sold worldwide, the Scorpène is a key reference of conventional attack submarines (SSK) for navies around the world. It can be easily adapted to specific requirements of customers and the continuous improvement of the Scorpene ensures the seamless integration of the latest technology onboard.

Final Scorpène Submarine

Indian shipbuilder Mazagon Dock Limited (MDL) on April 20, 2022 launched INS Vagsheer (S-26), the final Scorpène type submarine for the Indian Navy.

INS Vagsheer (S-26)
Launch ceremony for INS Vaghseer (S-26), at the MDL shipyard in Mumbai (Naval Group picture)

The submarine was launched by India’s Defence Secretary Ajay Kumar. Named after sandfish, a deadly deep water sea predator of the Indian Ocean, the first submarine «Vagsheer» was commissioned in December 1974. It was decommissioned in April 1997.

«INS Vagsheer (S-26) will now go undergo sea trials and will be later commissioned. The launch of this submarine is an example of India becoming self-reliant», said India’s Defence Secretary Ajay Kumar.

Four of the six submarines have been commissioned to date: INS Kalvari (S-21) (December 2017), INS Khanderi (S-22) (September 2019), INS Karanj (S-23) (March 2021) and INS Vela (S-24) (November 2021). Sea trials of the INS Vagir (S-25) are underway. The final submarine, INS Vagsheer is expected to be delivered to the Indian Navy in March 2024.

Scorpène is a conventional submarine designed by the Naval Group for the export market. It demonstrates both the Naval Group’s ability to deliver best-in-class submarines and to conduct successful transfers of technology. Today 14 Scorpène submarines are in operational service or being built, for the Chilean Navy (2 units), the Malaysian Navy (2 units), the Indian Navy (6 units), and the Brazilian Navy (4 units).

The Scorpène design is adapted to fit each navy’s specific requirements. Thus, the Brazilian Scorpène is slightly longer to carry a larger crew, almost double the patrol range, and be able to cover greater distances.

Scorpène is ideally suited for action and operational effectiveness. Robust and enduring, it’s an ocean-going submarine also designed for shallow waters operations. Multipurpose, it fulfills the entire scope of missions such as anti-surface and anti-submarine warfare, special operations, offensive minelaying and intelligence gathering. Integrating improvements from the French Barracuda-Class fast-attack submarine, Scorpène has cutting-edge capabilities.

5th Scorpène Submarine

The fifth submarine of Project 75, Yard 11879, Indian Navy’s Kalvari class commenced her sea trials on 01 February 2022. The submarine was launched in November 2020 from the Kanhoji Angre Wet Basin of Mazagon Dock Shipbuilders Limited (MDL). The submarine would be named Vagir, after commissioning.

INS Vagir (S25)
First Sea Sortie of Fifth Scorpène Submarine INS Vagir (S25)

Despite the COVID pandemic, MDL has ‘Delivered’ two submarines of the Project – 75 in the year 2021 and the commencement of sea trials of the fifth submarine is a significant milestone.

The submarine will now undergo intense trials of all its systems at sea, including propulsion systems, weapons and sensors. The submarine is scheduled for delivery to the Indian Navy in the year 2022 after completion of these trials.

Fourth Scorpene Submarine

According to information published by United News of India on November 9, 2021, the fourth Scorpene class submarine, which has been named INS Vela (S-24) was delivered to the Indian Navy.

INS Vela (S-24)
INS Vela (S-24) during sea trials

The Scorpene-class submarines are 2000 tons conventional-propulsion submarines designed and developed by Naval Group for all types of mission, such as surface vessel warfare, anti-submarine warfare, long-range strikes, special operations, or intelligence gathering.

The class has two diesel generation sets providing 1,250 kW/1,676 hp of power. At the top of the hull immediately above the diesel generator sets is a Dutch Breach machinery shipping hatch. The submarine has an elastically supported 2,900 kW/3,889 hp electronic engine.

The submarines can carry 18 torpedoes and missiles or 30 mines. It is equipped with six bow-located 21-inch/533-mm torpedo tubes providing salvo launch capability. Positive discharge launching is by an air turbine pump. She can launch anti-ship and anti-submarine torpedoes, as well as anti-surface missiles. The handling and loading of weapons are automated.

Built in India

Mazagon Dock Shipbuilders Limited (MDL) called «Ship Builder to the Nation», is one of India’s leading Defence public sector undertaking shipyards under the Ministry of Defence continuing their service to the nation with «Make in India» programme. They delivered the second Scorpene submarine «KHANDERI» to the Indian Navy at an event held in Mumbai on 19 September 2019. The Acceptance Document was signed by Cmde Rakesh Anand, Chairman & Managing Director, MDL and RAdm B Sivakumar, Chief of Staff Officer (Tech), Western Naval Command in the presence of MDL Directors and Navy personnel at MDL. The submarine would soon be commissioned into the Indian Navy. It is a milestone event for MDL.

Mazagon Dock Shipbuilders Limited delivers second Scorpene submarine «KHANDERI» to Indian Navy

The submarine «KHANDERI» is named after the wide snouted Saw fish, a deadly sea predator of the great Indian Ocean. The first Submarine Khanderi was commissioned into the Indian Navy on 6th December 1968 and decommissioned on 18th October 1989 after more than 20 years of yeoman service to the nation. In true nautical tradition, she will now be «reincarnated» by MDL to guard the vast maritime area of our nation.

Building of the Scorpene was indeed a challenge for MDL, as the complexity of the simplest of tasks increased exponentially due to all work having to be done in the most congested of spaces. This complexity was further aggravated by the stringent tolerances required to be achieved. However, all of these challenges were accepted head-on and successfully overcome by MDL, without any compromise in quality whatsoever.

The technology utilised in the Scorpene has ensured superior features of the submarine.

The Scorpene class of submarines can undertake multifarious tasks typically undertaken by any modern submarine which include anti-surface as well as anti­submarine warfare.

With the delivery of INS Khanderi (S22), India further cements its position as a submarine building nation and MDL has lived up to its reputation as one of the India’s leading shipyards with a capacity to meet requirements of the Indian Navy by the «Indian commercial and warship building and ship repairing industry report» released in Mumbai during March, 2018 by CRISIL.

The constructions of third Scorpene at MDL, INS Karanj (S23), was started on 31st January 2018, and is currently undergoing the rigorous phase of sea trials. The fourth Scorpene, INS Vela (S24) was recently launched in May 2019, and is being prepared for sea trials, whilst the remaining two submarines, INS Vagir (S25) and INS Vagsheer (S26), are in various stages of outfitting. The Scorpene project would not have been achieved up to the current progress without the unconditional support and active encouragement of the Department of Defence Production (MoD).

It is also pertinent to mention that the two SSK submarines built by MDL in 1992 and 1994 are still serving Indian Navy, after more than 25 years. This is testimony to our skill and capability of MDL. Mazagon Dock Shipbuilders Limited also achieved expertise in submarine refits by successfully executing the medium refit-cum-upgradation of all the four SSK class submarines of the Indian Navy. It is presently carrying out the medium refit and Life Certification of INS Shishumar, the first SSK submarine.

MDL has always been in the forefront of the nation’s progressive indigenous warship building programme. In fact, with the construction of the Leander and Godavari class frigates, Khukri class Corvettes, Missile Boats, Delhi and Kolkata class Destroyers, Shivalik class Stealth Frigates, the SSK submarines and the first Scorpene submarine under its belt, the history of modern-day MDL almost maps the history of indigenous warship building in India.

MDL’s contribution to national security and nation building continues with the P-15B Visakhapatnam class Destroyers and the P-17A class Stealth Frigates.

Recognising the challenges of the future well in time, MDL has completed an extensive modernisation programme, at the end of which, today it is building eight Warships, six Submarines, in its yard, which have four drydocks, three slipways, two Wet Basins and more than sixty thousand square metres of work shop area.

Leveraging the experience, the transfer-of-technology of the Scorpene project, and with its enhanced and upgraded infrastructure, MDL is ready for undertaking construction of future submarines projects.

 

Specifications

Overall length 66 m/216.5 feet
Diameter 6.20 m/20.3 feet
Submerged displacement 1,800 t
Dive depth > 350 m/1,148 feet
Maximum submerged speed > 20 knots/23 mph/37 km/h
Submersion endurance > 3 weeks
Crew 25 to 31 + 14 combat divers
Weapons 6 torpedo launching tubes, 18 heavy weapons

 

Brazilian Scorpène

On December 14, 2018, the Brazilian Navy launched its first Brazilian-built Scorpène submarine, the Riachuelo. The ceremony took place at the Itaguaí Navy base in presence of the President of the Federal Republic of Brazil and of the elected President.

The first Brazilian Scorpène submarine
The first Brazilian Scorpène submarine

 

A strategic Brazilian-French partnership

In 2009, Naval Group was entrusted by the Brazilian Navy with designing and transferring the technology for four conventional Scorpène submarines, and for the design and manufacturing assistance for the non-nuclear part of Brazil’s first nuclear-powered submarine. The contract also included the support for the construction of a naval base and a shipyard in Brazil.

The Prosub program is a key extension of the strategic defence cooperation agreement signed in December 2008 in Rio de Janeiro.

The launching of the Scorpène Riachuelo in presence of the Brazilian head of state today demonstrates the success of this program, with both the successful completion of the first submarine and of the shipyard’s infrastructure. The latter is being built by a Brazilian company, Construtora Norberto Odebrecht (CNO), based on Naval Group specifications and on the French group’s experience in the design, production engineering and in-service support of submarines.

The Riachuelo will start sea trials in 2019 for delivery in 2020. Delivery of submarines 2, 3 and 4 will then follow every 12 to 18 months.

 

Strengthening the Brazilian industrial base

Since 2012, Naval Group has done considerable work to identify, select, negotiate, qualify Brazilian service providers in order to:

  • feed the supplier database for equipment or products supplied by Naval Group to the Brazilian Navy;
  • and to present and qualify local suppliers for the future needs of the Brazilian Navy.

This work enables the Brazilian Navy to rely more and more on a sovereign national industrial base.

It also enables the Brazilian industrial ecosystem to access new markets by promoting their «Naval Group» and «Brazilian Navy» accreditation (whose image of excellence and seriousness is highly regarded in Brazil) and to avail of the know-how and experience of the French group in the fields of project management.

Finally, ICN (Itaguaí Construções Navais) will be able to call on this panel of suppliers for its own development as part of the future maintenance and support services of the submarines.

 

The Scorpène, a success story on export markets

Scorpène is the conventional submarine designed by Naval Group for the export market. It demonstrates both Naval Group’s ability to deliver best in class submarines and to conduct successful transfers of technology. Today 14 Scorpène submarines are in operational service or being built, for the Chilean Navy (2 units), the Malaysian Navy (2 units), the Indian Navy (6 units) and the Brazilian Navy (4 units).

The Scorpène design is adapted to fit each navy’s specific requirements. Thus, the Brazilian Scorpène will be slightly longer to carry a larger crew, almost double the patrol range, and be able to cover greater distances.

Scorpène is ideally suited for action and operational effectiveness. Robust and enduring, it’s an ocean-going submarine also designed for shallow waters operations. Multipurpose, it fulfils the entire scope of missions such as anti-surface and anti-submarine warfare, special operations, offensive minelaying and intelligence gathering. Integrating improvements from French Barracuda-Class fast-attack submarine, Scorpène has cutting-edge capabilities.

 

Brazilian Scorpène’s characteristics

Surfaced displacement 1,600-2,000 t
Length, overall 72 m/236 feet
Submerged speed 20 knots/23 mph/37 km/h
Diving depth > 300 m/984 feet
Autonomy > 45 days
Crew 35
Weapons total payload 18
Weapon tubes 6
Operational availability at sea > 240 days per year