SCORPENE SUBMARINE
1. Context
2. About Scorpene-Class Submarines
- The Scorpene-class submarines are one of the most advanced conventional submarines in the world.
- The submarine has superior stealth features, such as low radiated noise levels, advanced acoustic silencing techniques, and the ability to attack with precision-guided weapons on board.
- The Indian Navy intends to use the submarines for missions such as intelligence gathering, area surveillance, anti-surface warfare, anti-submarine warfare, and minelaying operations.
- The submarines are armed with six torpedo-launching tubes, 18 heavy weapons, tube-launched MBDA SM-39 Exocet anti-ship missiles, and precision-guided weapons.
- It can launch crippling attacks on the surface and underwater enemy targets.
- Moreover, the attack submarines can travel at a maximum submerged speed of approximately 20 knots and can remain submerged for 21 days.
- These Submarines have a diving depth of more than 350 m.
- The Scorpene class of submarines was designed by French naval shipbuilding firm DCNS in partnership with Spanish shipbuilding firm Navantia.
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3. India's Procurement of Additional Submarines
- India plans to procure three additional submarines due to delayed deliveries under Project 75 and to bolster their submarine fleet.
- The Indian Navy currently has 16 conventional submarines in service.
- The Navy needs at least 18 submarines to carry out its full spectrum of operations.
- Approximately 30% of the submarines are under refit at any given time, reducing the strength of operational submarines.
- The upcoming refits for the Kalvari-class submarines will further reduce operational strength.
- The procurement of additional submarines with higher indigenous content will maintain force levels and operational readiness while creating employment opportunities.
- It will also enhance the capability and expertise of the Mazagon Dock Shipbuilders Limited (MDL) in submarine construction.
4. Advantages of Nuclear and Conventional Submarines
Advantages of Nuclear Submarines:
- Unlimited endurance with a nuclear reactor operational life of up to 30 years.
- No need to surface frequently for crew supplies due to non-reliance on batteries.
- Ability to achieve higher speeds compared to conventional submarines.
Considerations for Nuclear Submarines:
- Expensive to procure and require specialized operational experience.
- Advancements in diesel-electric technology have increased the range and stealth of conventional submarines.
Importance of Conventional Submarines:
- Conventional submarines equipped with Air Independent Propulsion (AIP) systems offer increased endurance and stealth.
- Retrofitting of Scorpene class submarines with AIP systems planned by the Indian Navy starting in 2024.
5. About Project 75
- Project-75 (I) envisages the indigenous construction of six modern conventional submarines with contemporary equipment, weapons & sensors including Fuel Cell based AIP (Air Independent Propulsion Plant), advanced torpedoes, modern missiles, and state-of-the-art countermeasure systems.
- This would provide a major boost to the indigenous design and construction capability of submarines in India, in addition to bringing in the latest submarine design and technologies as part of the project.
- The overall aim would be to progressively build indigenous capabilities in the private sector to design, develop and manufacture complex weapon systems for the future needs of the Armed Forces.
| For Prelims: Scorpene-class submarines, Project 75, Defence Acquisition Council, Rafale Marine fighter jets, MBDA SM-39 Exocet anti-ship missile, precision-guided weapons, Kalvari-class submarines, Mazagon Dock Shipbuilders Limited (MDL), and Air Independent Propulsion (AIP) system. |

