History
India
Name	INSVela
Namesake	Vela (Stingray)
Launched	28 January 1972
Commissioned	31 August 1973
Decommissioned	25 June 2010
General characteristics
Class & type	Vela-classsubmarine
Displacement	1,952 t (1,921 long tons) surfaced 2,475 t (2,436 long tons) submerged
Length	91.3 m (299 ft 6 in)
Beam	7.5 m (24 ft 7 in)
Draught	6 m (19 ft 8 in)
Speed	16knots (30 km/h; 18 mph) surfaced 15 knots (28 km/h; 17 mph) submerged
Range	20,000 mi (32,000 km) at 8 kn (15 km/h; 9.2 mph) surfaced 380 mi (610 km) at 10 kn (19 km/h; 12 mph) submerged
Test depth	250 m (820 ft)
Complement	75 (incl 8 officers)
Armament	10 x 533 mm (21 in)torpedo tubes with 22 SET-65E/SAET-60 torpedoes 44mines in lieu of torpedoes

INSVela (S40) was thelead ship of fourdiesel-electricVela-class submarines of theIndian Navy. The submarine was commissioned on 31 August 1973 inRiga,Latvian SSR. Along with her sister shipVagli, she spent almost 10 years undergoing a protracted refit byHindustan Shipyard.^[1] After 37 years of service, the submarine was decommissioned on 25 June 2010. The submarine was claimed by theEastern Naval Command to be the oldest operational submarine in the world at the time of her decommissioning.^[2][3][4][5]

Vela is the name of an Indian fish from thestingray species known for its aggression and offensive power, and the ability to camouflage itself from predators.^[6]

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