INS Khukri (F149)

INS Khukri underway
History
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	Radar Type 974 navigation Sonar Type 174 search Sonar Type 162 target classification Sonar Type 170 targeting
Armament	3 × 40 mm Bofors gun Mark 7 (quarterdeck mount later removed)[2] 2 × Limbo Mark 10 A/S mortars[2]

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. This was the first warship sunk in action by a submarine since World War II. It remains the post-independence Indian navy's only warship to be lost in war.^[2][3]

Sinking of INS Khukri
Part of the Naval Conflict of Indo-Pakistan War of 1971
Date 9 December 1971 Location Arabian Sea Result INS Khukhri sank[2]
Belligerents
Pakistan  Pakistan Navy	India  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]