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INS Kursura (S20)

INS Kursura (S20) underway
INS Kursura underway
History
India
Name: INS Kursura
Builder: Sudomekh, Admiralty Shipyard
Commissioned: 18 December 1969
Decommissioned: 27 February 2001
Identification: S20
Fate: Museum ship at RK Beach, Visakhapatnam
General characteristics
Class and type: Kalvari-class submarine
Displacement:
  • 1,950 t (1,919 long tons) surfaced
  • 2,475 t (2,436 long tons) submerged
Length: 91.3 m (300 ft)
Beam: 7.5 m (25 ft)
Draught: 6 m (20 ft)
Speed:
  • 16 knots (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: 985 ft (300 m)
Complement: 75 (incl 8 officers)
Armament:
  • 10 × 533 mm (21 in) torpedo tubes with 22 Type 53 torpedoes
  • 44 mines in lieu of torpedoes

INS Kursura (S20) was a Kalvari-class diesel-electric submarine of the Indian Navy. She was India's fifth submarine. Kursura was commissioned on 18 December 1969 and was decommissioned on 27 February 2001 after 31 years of service. She participated in the Indo-Pakistani War of 1971, where she played a key role in patrol missions. She later participated in naval exercises with other nations and made many goodwill visits to other countries.

After decommissioning, she was preserved as a museum for public access on Ramakrishna Mission Beach in Visakhapatnam. Kursura has the distinction of being one of the very few submarine museums to retain originality and has been called a "must-visit destination" of Visakhapatnam. Despite being a decommissioned submarine, she still receives the navy's "Dressing Ship" honour, which is usually awarded only to active ships.

Kursura has a length of 91.3 m (300 ft) overall, a beam of 7.5 m (25 ft) and a draught of 6 m (20 ft). She displaces 1,950 t (1,919 long tons) surfaced, 2,475 t (2,436 long tons) submerged and has a maximum diving depth of 985 ft (300 m). The complement is about 75, including 8 officers and 67 sailors.

The submarine has three shafts, each with a six-blade propeller. She is powered by three Kolomna 2D42M diesel engines, each with 2,000 horsepower (1,500 kW). She also has three electric motors, two of them with 1,350 hp (1,010 kW) and one with 2,700 hp (2,000 kW). She can achieve a maximum speed of 16 knots (30 km/h) when on surface, 15 knots (28 km/h) when submerged and 9 knots (17 km/h) while snorkelling. She has a range of 20,000 mi (32,000 km) at 8 kn (15 km/h; 9.2 mph) when surfaced and 380 mi (610 km) at 10 kn (19 km/h; 12 mph) when submerged. There are 10 torpedo tubes to carry 22 Type 53 torpedoes. She could lay 44 mines instead of torpedoes. She also had a snoop tray and I-Band radar for surface search.


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