India's First Scorpene Class Submarine Undergoes Maiden Sea Trial

Comments (0)

‘INS Kalvari’, India's first indigenous Scorpene-class stealth submarine, built at the Mazagon Dock Shipbuilders Ltd Mumbai (MDL) recently went for it's first sea trial in the Mumbai naval dockyard.

The submarine sailed out at about 1000 hrs under her own propulsion for the first sea trial, off the Mumbai coast and during the trial a number of number of preliminary tests on the propulsion system, Auxiliary Equipment and Systems, Navigation Aids, Communication Equipment and Steering gear. Various Standard Operating Procedures were also validated for this new class of submarines. 

During the next few months, the submarine will undergo a barrage of sea trials, including surface trials, diving trials, weapon trials, Noise trials etc. which would test the submarine to the extremes of its intended operating envelop. Thereafter she would be commissioned into the Indian Navy as INS Kalvari later this year.

Background : On 6 April 2015, Defence Minister Manohar Parrikar launched the indigenously-built Scorpène submarine at the Mazagaon Dockyard and directed that all out effort be made to complete the project in time. Accordingly, the teams from MDL, Indian Navy and DCNS have been working round the clock and thus achieved a major project milestone.

INS Kalvari (S50)

INS Kalvari (S50) is the first of the Indian Navy's six Kalvari-class submarine being built in India. It is a diesel-electric attack submarine which is designed by French naval defence and energy company DCNS and being manufactured at Mazagon Dock Limited in Mumbai under the strategic Project 75.

Speed :- The submarines move with the speed of 20knots when submerged and 12knots when on surface.  It has range of 6,500 nmi (12,000 km) at a speed of 8 knots (surfaced) and 550 nmi (1,020 km) at 5 knots (submerged). It has endurance of 40 days compact and 50 days normal.

Operations capability:- This stealth submarine can undertake various operations including multifarious warfare, Anti-submarine warfare, Intelligence gathering, mine laying, area surveillance etc. 

‘Kalvari’ : The Tiger Shark :-  Kalvari is the dreaded Tiger Shark as It has superior stealth capability and is designed to operate in all theatres including the tropics. It is built using special steel that can withstand high yield stress that can withstand high hydrostatic force and enabling to dive deeper. 

Armament :- The Scorpene is equipped with Weapons Launching Tubes (WLT), and can carry weapons on board which can be easily reloaded at sea, through special handling and loading equipment. The array of weapons and complex sensors fitted on board the Scorpene are managed by a high technology Combat Management System, which integrates various diverse systems fitted onboard into One Formidable Whole.

Attack Capability:- An attack can be launched through this submarine with torpedoes as well as tube launched anti-ship missiles on the surface of the water or beneath it as well. It can also launch massive attacks through precision guided weapons.


The 10 Biggest Navies In The World

1.  United States Navy
2. Russian Navy
3. People’s Liberation Army Navy (China)
4. Japanese Maritime Self-Defense Force
5. Royal Navy (UK)
6. French Navy
7. Indian Navy
8. Republic of Korea Navy (South Korea)
9. Marina Militare (Italy)
10. Republic of China Navy (Taiwan)
Practice Questions