INS Khukri underway | |
History | |
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Indian Navy | |
Name | INS Khukri [1] |
Namesake | Khukri |
Builder | J. Samuel White, Cowes |
Laid down | 29 December 1955 |
Launched | 20 November 1956 |
Commissioned | 16 July 1958 |
Identification | Pennant number: F149 |
Fate | Torpedoed and sunk by Pakistan Navy submarine PNS Hangor on 9 December 1971 |
General characteristics | |
Class and type | Blackwood-class frigate [2] |
Displacement | 1,180 long tons (1,199 t) full load [2] |
Length | 300 ft (91 m)pp 310 ft (94 m)oa [2] |
Beam | 33 ft (10 m) [2] |
Draught | 15.5 ft (4.7 m) [2] |
Propulsion | Y-100 plant; 2 x Babcock & Wilcox boilers, steam turbines on 1 shaft, 15,000 shp (11 MW) |
Speed | 27.8 knots (51 km/h) maximum, 24.5 knots (45 km/h) sustained [2] |
Range | 5,200 nautical miles (9,630 km) at 12 knots (22 km/h) |
Complement | 150 [2] |
Sensors and processing systems |
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Armament |
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INS Khukri was a Type 14 (Blackwood-class) frigate of the Indian Navy. She was sunk off the coast of Diu, Gujarat, India by the Pakistan Navy Daphné-class submarine Hangor on 9 December 1971 during the Indo-Pakistani War of 1971. It was the first warship sunk in action by a submarine since World War II. It is the post-independence Indian navy's only warship to have been lost in war. [2] [3]
Sinking of INS Khukri | |||||||
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Part of the Naval Conflict of Indo-Pakistan War of 1971 | |||||||
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Belligerents | |||||||
Pakistan Navy | Indian Navy | ||||||
Commanders and leaders | |||||||
Commander Ahmed Tasnim | Captain Mahendra Nath Mulla † | ||||||
Strength | |||||||
PNS Hangor (submarine) | INS Khukri (frigate) INS Kirpan (frigate) | ||||||
Casualties and losses | |||||||
None | INS Khukri sunk [2] 194 [4] |
After the beginning of hostilities on 3 December 1971, Indian Naval radio detection equipment identified a submarine lurking about 35 miles (56 km) southwest of Diu harbour. The 14th Frigate Squadron of the Western Fleet was dispatched to destroy the submarine. [2] It usually consisted of five ships, Khukri, Kirpan, Kalveti, Krishna and Kuthar, but at the time of the incident Kuthar's boiler room was being repaired in Bombay. [2] One reason that may have prompted the decision to deploy two obsolete Blackwood-class frigates against a modern Daphne-class submarine was that the Indian Navy lacked sufficient numbers of anti-submarine aircraft. [5]
The submarine sighted the squadron on the evening of 9 December. Khukri was still not aware of the submarine's presence [6] and continued slowly on a steady course because she was testing an improved version of the 170/174 sonar, which required a low speed to increase detection, despite the fact that moving on low speed was against Indian anti-submarine doctrine. [2] At 19:57 Hangor fired a homing torpedo on a sonar approach at Kirpan. [2] The torpedo missed Kirpan and did not explode [6] [7] and was detected, causing Kirpan to turn away and fire multiple anti-submarine mortars, all of which also missed. [2] Khukri increased its speed and turned towards the submarine, which then fired a second torpedo directed at Khukri. [2] The torpedo struck Khukri and exploded under its oil tanks. [2] [6] According to the Pakistani submarine captain, Commander Ahmed Tasnim, the ship sank within two minutes. [7] Other sources claim that Khukri was struck by three torpedoes before going down. [8]
After a few minutes, Kirpan attacked Hangor with depth charges, as her anti-submarine mortars were no longer functional. All missed. [2] Hangor then fired a final torpedo at Kirpan, which Kirpan dodged before fleeing. Hangor then left the area. [2] [6] Hangor patrolled the region for the next four days before returning safely to her berth.
Khukri is the only ship lost in combat in the history of the post-independence Indian Navy. [2] [3] [9] Eighteen officers and 176 other sailors were killed. [3] [9] The captain, Mahendra Nath Mulla, was among the casualties and is therefore the only Indian captain to go down with a vessel. He was posthumously awarded India's second-highest military honour, the Maha Vir Chakra. [3] [9]
There is a memorial to the sailors in Diu. The memorial consists of a scale model of Khukri encased in a glass house, placed atop a hillock facing the sea. The memorial was inaugurated by Vice Admiral Madhvendra Singh as the flag officer commanding-in-chief. [4]
Responsibility for errors by Indian naval officers related to the sinking has caused some controversy. The naval officer who led the inquiry into the sinking, Benoy Bhushan, has claimed that India's official naval history invented fictional accounts to cover up bungling and a surviving sailor from the frigate, Chanchal Singh Gill, has called for an investigation and withdrawal of gallantry awards to negligent officers in the squadron. [10]
The Type 14 Blackwood class were a ship class of minimal "second-rate" anti-submarine warfare frigates. Built for the Royal Navy during the 1950s at a time of increasing threat from the Soviet Union's submarine fleet, they served until the late 1970s. Twelve ships of this class served with the Royal Navy and a further three were built for the Indian Navy.
PNS/M Hangor (S-131) was a Daphné-class diesel-electric submarine that served in the Pakistan Navy from 1969 until its decommissioning in 2006. It is the first submarine to sink a ship after World War II.
PNS/M Ghazi (S–130), SJ, was a Tench-class diesel-electric submarine, the first fast-attack submarine in the Pakistan Navy. She was leased from the United States Navy in 1963.
Operation Trident was an offensive operation launched by the Indian Navy on Pakistan's port city of Karachi during the Indo-Pakistani War of 1971. Operation Trident saw the first use of anti-ship missiles in combat in the region. The operation was conducted on the night of 4–5 December and inflicted heavy damage on Pakistani vessels and facilities. While India suffered no losses, Pakistan lost a minesweeper, a destroyer, a cargo vessel carrying ammunition, and fuel storage tanks in Karachi. Another destroyer was also badly damaged and eventually scrapped. India celebrates its Navy Day annually on 4 December to mark this operation. Trident was followed up by Operation Python three days later.
Operation Dwarka, codenamed as Operation Somnath, was a naval operation by the Pakistan Navy to attack the Indian coastal town of Dwarka on 7 and 8 September 1965. This instance was the first engagement by the Pakistan Navy in any of the Indo-Pakistan Wars.
Naval tactics and doctrine is the collective name for methods of engaging and defeating an enemy ship or fleet in battle at sea during naval warfare, the naval equivalent of military tactics on land.
Vice Admiral Ahmad TasnimHI(M) SJ & Bar SI(M) SBt is a retired three-star rank admiral of the Pakistan Navy who is known for his command of Hangor, a submarine that sank INS Khukri on 8 December 1971 during Pakistan's third war with India, off the coast of Diu, Gujarat.
Captain Mahendra Nath Mulla, was an officer of the Indian Navy. As the commanding officer of INS Khukri, he chose to go down with his ship when his ship was sunk during the Indo-Pakistani War of 1971.
The following ships of the Indian Navy have been named Khukri:
INS Kirpan is the name of a Khukri-class corvette formerly commissioned by the Indian Navy. It was recently decommissioned and handed over to Vietnam People's Navy in a ceremony presided over by Adm. R. Hari Kumar and Rear Adm. Pham Manh Hung, Deputy Commander-in-Chief and Chief of Staff, Vietnam People's Navy.
The Indo-Pakistani Naval War of 1971 refers to the maritime military engagements between the Indian Navy and the Pakistan Navy during the Indo-Pakistani War of 1971. The series of naval operations began with the Indian Navy's exertion of pressure on Pakistan from the Indian Ocean, while the Indian Army and Indian Air Force moved in to choke Pakistani forces operating in East Pakistan on land. Indian naval operations comprised naval interdiction, air defence, ground support, and logistics missions.
INS Jamuna (J16) is a hydrographic survey ship in the Indian Navy, under the Southern Naval Command. Jamuna is equipped with a helicopter, a Bofors 40 mm gun, four survey motor boats, and two small boats. The ship has the distinction of being associated with relief work in the wake of the Gujarat earthquake, Tsunami 2004, as well as Operation Vijay during the Kargil war. Jamuna was also awarded a Mention in Dispatches.
INS Brahmaputra (F31) was a Leopard-class frigate of the Indian Navy. She was built by the Scottish shipbuilder John Brown & Company and completed in March 1958. Brahmaputra served during the Indo-Pakistani War of 1965 and the Indo-Pakistani War of 1971. She was scrapped in 1986.
The Western Fleet is a Naval fleet of the Indian Navy. It is known as the 'Sword Arm' of the Indian Navy. It is headquartered at Mumbai, Maharashtra on the west coast of India. It is a part of the Western Naval Command and is responsible for the naval forces in the Arabian Sea and parts of the Indian Ocean.
Vice Admiral Swaraj Parkash, PVSM, MVC, AVSM was a Flag officer in the Indian Navy. He was the Captain of the aircraft carrier INS Vikrant during the Indo-Pakistani War of 1971 for which he was decorated with India's second-highest military decoration, the Maha Vir Chakra. He later served as the second Director General of the Indian Coast Guard from 1980 to 1982.
Vice Admiral Elenjikal Chandy Kuruvila, PVSM, AVSM was a former Flag officer in the Indian Navy. He was the Fleet commander of the Western Fleet during the Indo-Pakistani War of 1971, for which he was awarded the Param Vishisht Seva Medal. He later led the Southern Naval Area and then served as the chairman and managing director of Mazagon Dock Limited.
Rear Admiral Arun Auditto, AVSM, NM was a Flag Officer in the Indian Navy. He was decorated with a gallantry award during the Liberation of Goa. A pioneer submariner in the Indian Navy, he was the commissioning Commanding Officer of the Kalvari-class submarine INS Kursura (S20), which he commanded during the Indo-Pakistani War of 1971. He later commanded the submarine base INS Virbahu and the Whitby-class frigate INS Trishul (F143). After promotion to flag rank, he served as the Fortress Commander, Andaman and Nicobar Islands (FORTAN) and as the first Flag Officer Submarines, before retiring in 1988.
The Hangor-class submarines are a class of diesel–electric attack submarines currently being manufactured by a joint-partnership of the China Shipbuilding Industry Corporation (CSIC) and the Karachi Shipyard & Engineering Works (KSEW) for the Pakistan Navy (PN). Eponymously christened after the former-Daphné-class submarines that the PN operated between 1970 and 2006, the class is an export derivative of the Chinese-origin Type 039A/041 attack submarine, currently operated by the People's Liberation Army Navy (PLAN). First unveiled to the public in 2018, the future submarines are envisaged to undertake anti-access/area denial operations within Pakistan's exclusive economic zone, through the use of heavyweight torpedoes and anti-ship cruising missiles.