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INS Nilgiri (F33)
Career  Indian Navy
Name: INS Nilgiri
Namesake: Nilgiri Hills
Ordered: 1964
Builder: Mazagon Docks Ltd, Mumbai
Laid down: October 1966
Launched: October 1968
Commissioned: 3rd June 1972
Decommissioned: 1996
Fate: Sunk in a Sea Eagle AShM test from a carrier-launched Sea Harrier in 1997
General characteristics
Class & type: Nilgiri-class frigate
Displacement: 2682 tons (standard)
2962 tons (full load)
Length: 113 m
Beam: 13 m
Draught: 4.3 m
Propulsion: 2 x 550 psi boilers
2 x 30,000 hp motors
Speed: 28 knots
Range: 4000 miles @ 12 knots
Complement: 267 (incl 17 officers)[1]
Sensors and
processing systems:
Signaal DA05 / BEL PFN513 radar
Signaal LW08 / BEL RAWL02 surface radar
Signaal ZW06 / BEL RASHMI navigation radar
Signaal M-45 navigation radar
Westinghouse SQS-505 / Graesby 750 sonar
Type 170 active attack sonar
Armament: 2 x MK.6 Vickers 115mm guns
4 x AK-230 30mm guns
2 x Oerlikon 20mm guns
2 x triple ILAS 3 324 mm torpedo tubes with Whitehead A244S or the Indian NST-58 torpedoes
Aircraft carried: 1 HAL Chetak

INS Nilgiri (F33) was the lead ship of her class of frigates. Commissioned on June 3, 1972 into the Indian Navy, she was decommissioned in 1996.

INS Nilgiri was the first major warship built in India keel up. It was built at Mazagon Docks Limited, Mumbai in collaboration with Yarrow Shipbuilders, Glasgow. The collaboration involved designs of the Royal Navy's improved Type 12 general purpose frigate and technical and training support for construction of 6 vessels. The project to build Nilgiri was led by Homi Sethna and Commander (later Rear Admiral) Prakash N Gour. The success of Nilgiri led to the Indian Navy along with Mazagon Docks redesigning the last two ships of the class - INS Vindhyagiri and INS Taragiri to add the Sea King helicopter, ILAS 324 mm torpedo tubes and Bofors ASW rocket launcher.

Decommissioning[edit | edit source]

INS Nilgiri was decommissioned in 1996.

She was sunk on April 24, 1997, in a test firing of a Sea Eagle AShM by a Sea Harrier Frs Mk.51 taking off from INS Viraat.

References[edit | edit source]

Naval Forces of the World, by Christopher Chant Transition to Triumph - Indian Navy 1965 to 1975, by Vice Admiral GM Hiranandani (retd)


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