KALVARI-CLASS SUBMARINES
- November 14, 2020
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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Subject: Defence
Context: Indian Navy’s fifth Kalvari-class Diesel Electric attack submarine INS Vagir was launched at Mazgaon Dock in Mumbai.
Concept:
- Indian Naval Ship (INS) Vagir is the fifth among the six Kalvari-class submarines being constructed by the public sector shipbuilder Mazagon Dock Ltd (MDL) in Mumbai.
- The other vessels in the class are INS Kalvari, INS Khanderi, INS Karanj, INS Vela and INS Vagsheer.
- Status: Of these Kalvari and Khanderi have been commissioned in 2017 and 2019, Vela and Karanj and undergoing sea trials, Vagir has now been launched and Vagsheer is under construction.
Technical details
- The design of Kalvari class of submarines is based on Scorpenesubmarines designed and developed by French defence major Naval Group formerly DCNS and Spanish state owned entity Navantia.
- This class of submarines have Diesel Electric transmission systems and these are primarily attack submarines or ‘hunter-killer’ type which means they are designed to target and sink adversary naval vessels.
- These submarines are around 220 feet long and have a height of 40 feet. It can reach the highest speeds of 11 knots when surfaced and 20 knots when submerged.
- The modern variants of the Scorpene class of submarines have what is called the Air Independent Propulsion (AIP) which enables non-nuclear submarines to operate for a long time without access to surface oxygen.