The fifth submarine of the Project – 75, Kalvari Class submarines, Yard 11879 was delivered to the Indian Navy on 20 December. Indian shipbuilder Mazagon Dock Shipbuilders (MDL) in Mumbai, Maharashtra, in close coordination with French company Naval Group, is constructing the vessels of the class. Launched on 12 Nov 20, Vagir commenced the sea trials from 01 Feb 22 and it is a matter of great pride that she has completed all major trials including the weapon and sensor trials in the shortest time in comparison to the earlier submarines. The Indian Navy will now commission Vagir into the service to enhance the fleet’s existing capabilities.
The Kalvari class is a class of diesel-electric attack submarines based on the Scorpène-class submarine being built for the Indian Navy. The Scorpène-class submarines are a class of diesel-electric attack submarines jointly developed by the French Naval Group (formerly the DCNS) and the Spanish company Navantia. It features diesel propulsion and an additional air-independent propulsion (AIP). The class and submarines take their names from the first submarines inducted in the Indian Navy. The submarines are designed by French naval defence and energy company DCNS and are being manufactured by Mazagon Dock Limited in Mumbai.
All the six Project 75 submarines are being built indigenously based on the design of Naval Group’s Scorpene-class vessels. Submarine construction is an intricate activity as the difficulty is compounded when all equipment are required to be miniaturised and are subject to stringent quality requirements. Construction of these submarines in an Indian yard is another step towards ‘Aatmanirbhar Bharat’ and enhances self-confidence in this field, a notable achievement is that this is the third submarine delivered to the Indian Navy in a span of 24 months. The submarine would shortly be commissioned into the Indian Navy and enhance the Indian Navy’s capability.
The Kalvari class is 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. It has a length of 67.5 m (221 ft 5 in), height of 12.3 m (40 ft 4 in), overall beam of 6.2 m (20 ft 4 in) and a draught of 5.8 m (19 ft 0 in). This class is equipped with six 533 mm (21 in) torpedo tubes for a combination of 18 heavyweight wire-guided German-made Surface and Underwater Target (SUT) torpedoes and SM39 Exocet anti-ship missiles or 30 mines in place of both. The class is also fitted with mobile C303/S anti-torpedo decoys for self-defence.