INS Kursura S20 Submarine Museum (Visakhapatnam)

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Commissioned 18 Dec 1969, INS Kursura S20 was a submarine of the Indian Navy.
It was one of the Soviet Foxtrot class submarines that were sold to India.
After it was decommissioned from service in 2001, it was converted into a museum ship located at Ramakrishna Beach, Visakhapatnam, Andhra Pradesh.


The idea of converting a decommissioned submarine into a museum was conceived by Headquarters, Eastern Naval Command with an aim to bring the Navy closer to the civilian population. This museum provides a layman an exclusive opportunity to have an invaluable experience of boarding a submarine and getting an insight into various aspects of its weaponry, machinery, confined spaces and life onboard. Visakhapatnam is the home station for all the submarines of the Indian Navy where the premier submarine operational establishment INS Virbahu and a training establishment, INS Satavahana are located. The arduous task of beaching the submarine was undertaken by the Naval Ship Research and Design Centre at Visakhapatnam. It has indeed been a marvel of engineering to bring the submarine on to the beach.

Specifications:
Indian Designator: Kursura
Russia Designator: Project 641
NATO Designator: Foxtrot-Class
Length: 91.3 m
Beam: 7.5 m
Draft: 6 m
Displacement: 1,952 tons surfaced, 2,475 tons submerged
Construction: 3/8 inch outer light hull comprising ballast tanks.
7/8 inch QT28 Nickel Steel pressure hull.
Complement: 12 officers
10 midshipmen
56 seamen
Maximum Diving Depth: 985 feet
Speed: 16 knots surfaced
15 knots submerged
9 knots snorkeling
Range: 20,000 miles surfaced at 8 knots,
11,000 miles snorkeling
380 miles submerged at 2 knots
Endurance: 3 - 5 days submerged
Propulsion: 3 x Kolomna 2D42M diesel engines, 2,000 hp each.
3 x electric motors; 2 with 1,350 hp and 1 with 2,700 hp.
1 x auxiliary motor with 180 hp.
3 x propeller shafts, each with 6 bladed propellers.
Torpedoes: 10 tubes (533 mm) 22 Soviet Type 53 torpedoes with active/ passive
Mines: 44 in lieu of torpedoes
Radar: Surface search: Snoop Tray; I band.
Sonar: Herkules medium-frequency active/passive.
Feniks passive search/attack.
Electronic warfare: Stop Light, Radar Warning.
Quad Loop Directional Finder.
Crew 8 officers, 67 enlisted

indiannavy.nic.in/museum.htm