INS Kalvari (S21)

Surfaced: 1,615 tonnes (1,780 short tons)
Submerged: 1,775 tonnes (1,957 short tons)

	INS Kalvari (S21) at sea
History
India
Name	Kalvari
Namesake	Kalvari (S23)
Ordered	2005
Builder	Mazagon Dock Limited, Mumbai
Launched	27 October 2015
Acquired	2 December 2017
Commissioned	14 December 2017
Identification	S21
Motto	Ever Onward
Status	in active service
Badge
General characteristics
Class and type	Kalvari-class submarine
Displacement	Surfaced: 1,615 tonnes (1,780 short tons); Submerged: 1,775 tonnes (1,957 short tons);
Length	67.5 m (221 ft)
Beam	6.2 m (20 ft)
Height	12.3 m (40 ft)
Draught	5.8 m (19 ft)
Propulsion	4 x MTU 12V 396 SE84 diesel engines; 360 x battery cells; DRDO PAFC Fuel Cell AIP (To be added in mid-life refit);
Speed	Surfaced: 11 kn (20 km/h); Submerged: 20 kn (37 km/h);
Range	6,500 nmi (12,000 km) at 8 kn (15 km/h) (surfaced); 550 nmi (1,020 km) at 4 kn (7.4 km/h) (submerged);
Endurance	50 days
Test depth	350 metres (1,150 ft)
Complement	8 officers; 35 sailors;
Electronic warfare ; & decoys	C303/S anti-torpedo countermeasure system
Armament	6 x 533 mm (21 in) torpedo tubes for 18 SUT torpedoes OR ; SM.39 Exocet anti-ship missiles; 30 mines in place of torpedoes;

INS Kalvari (S21) is the first of the six indigenous Scorpène-class submarines currently in service with the Indian Navy. It is a diesel-electric attack submarine which is designed by DCNS (French naval defence and energy company) and was manufactured at Mazagon Dock Limited in Mumbai.

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