Current Affairs

Boost To India’s Naval Might As 3rd Scorpene-Class Submarine ‘INS Karanj’ Ready For Commissioning

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February 18, 2021
1.The Indian Navy will commission its third ‘Project-75’ Scorpene-class diesel-electric attack submarine, INS Karanj, next month.
1.1. The Indian Navy has renamed these as “KALVARI” class submarines.
2.THE P75 PROJECT
2.1. India is building six Scorpene class conventional diesel-electric driven submarines at Mazagaon Dock Ltd., Mumbai, under the project codenamed as P75.
2.2. The state-owned Mazagaon Dock Shipbuilders Limited has entered into a contract for construction and transfer of technology for six Scorpene-class subs with French collaborator Ms. Naval Group (formerly DCNS).
2.3. Out of these six submarines, —
2.3.1. The first such submarine INS Kalvari was launched in October 2015 and commissioned in December 2017, five years behind schedule.
2.3.2. The second, INS Khanderi, was launched in January 2017 for sea trials and commissioned in September 2019.
2.3.3. The third submarine INS Karanj ( named after an island near Bombay), will be commissioned next month.
2.3.4. The fourth one, INS Vela, was launched in May 2019 and is undergoing sea trials.
2.3.5. The fifth submarine, INS Vagir, was launched in November 2020 and is also undergoing sea trials.
2.3.6. The sixth submarine INS Vagsheer is at the stage of outfitting.
3.THESE ARE VERSATILE ATTACK SUBMARINES
3.1. The state-of-the-art technology utilised for the construction of Scorpene class submarines has ensured,–
3.1.1. superior stealth features such as advanced acoustic silencing techniques,
3.1.2. low radiated noise levels,
3.1.3. hydro-dynamically optimized shape, and
3.1.4. the ability to launch an attack on the enemy using precision-guided weapons.
3.1.5. The attack can be mounted with both torpedoes and tube-launched anti-ship missiles, at the same time as underwater or on the surface.
3.1.6. The stealth of this robust platform is enhanced by the special attention given to various signatures.
3.1.7. These stealth features give it invulnerability, unmatched by most submarines.
3.2. The Kalvari class is thus capable of offensive operations across the entire spectrum of naval warfare, including anti-surface warfare, anti-submarine warfare, intelligence gathering, mine laying, and area surveillance.
3.3. These are called the hunter-killer type, which means they are designed to target and sink adversary naval vessels.
4.CUTTING EDGE TECHNICAL SUPERIORITY
4.1. The Scorpene class of submarines has the Air Independent Propulsion (AIP), which enables non-nuclear submarines to operate for a long time without access to surface oxygen.
4.2. These submarines are based on a single-hull, stealthy design that is intended to reduce the acoustic (sonar) cross-section (SCS) of the boat.
4.3. The pressure hull is constructed of 80 HLES steel; consequently, the boat has a maximum operating depth of 350 m.
4.4. It has a length of 67.5 m (221 ft), a height of 12.3 m (40 ft), an overall beam of 6.2 m (20 ft), and a draught of 5.8 m (19 ft).
4.5. It can reach a top speed of 20 knots (37 km/h) when submerged and a maximum speed of 11 knots (20 km/h) when surfaced.
4.6.The submarine has a range of 12,000 km at 8 knots (15 km/h) when surfaced.
4.7. Each ship is powered by four MTU 12V 396 SE84 diesel engines, has 360 battery cells (750 kg each) for power and has a silent permanently magnetized propulsion motor.
4.8. The hull, fin, and hydroplanes are designed for minimum underwater resistance, and all equipment inside the pressure hull is mounted on shock-absorbing cradles for enhanced stealth.
5.THE WEAPON SYSTEMS
5.1. This class is equipped with,–
5.1.1. six 533-mm torpedo tubes for a combination of 18 heavyweight wire-guided German-made Surface and Underwater Target (SUT) torpedoes;
5.1.2. SM39 Exocet anti-ship missiles or 30 mines in place of both.
5.1.3. The class is also fitted with mobile C303/S anti-torpedo decoys for self-defence.
5.1.4. The weapon systems and sensors are integrated with Submarine Tactical Integrated Combat System (SUBTICS).
5.1.5. It has a sonar system capable of Low Frequency Analysis and Ranging (LOFAR), enabling long-range detection and classification.
6.OUR TOTAL INVENTORY OF SUBMARINES
6.1. We have two NUCLEAR- POWERED SUBMARINES
6.1.1. INS Chakra (SSN)—ship, submersible, nuclear.
6.1.2. INS Arihant (Sanskrit—vanquisher of enemies)
6.1.3. This year, the Indian Navy will also commission its third nuclear-powered attack submarine INS Arighat, capable of launching nuclear-capable Submarine Launched Ballistic Missiles (SLBMs).
6.1.4. We have 14 conventional diesel-electric submarines already in service.
6.1.5. The six Scorpene class modern diesel-electric submarines shall take the total number to 23.
7.This number is considered to fall short of ensuring strategic deterrence with China, so we are building more submarines.
8.STRENGTHENING INDIGENOUS BUILDING POWER BY BOOSTING THE INTELLECTUAL PROPERTY ECOSYSTEM
8.1. The Nationalist PM MODI Government launched mission Raksha Gyan Shakti to boost the IP culture in the Defence manufacturing units.
8.2. Under the Mission Raksha Gyan Shakti initiative launched a year ago, MDL was asked to file 50 intellectual patents, and it exceeded vastly by 130 percent.
Ramdas Iyer
18.02.2021
Thursday
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