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Sinking of PNS Ghazi

USS Diablo while in the Caribbean in 1949
Ghazi underway
History
United States
Name: USS Diablo (SS-479)
Builder: Portsmouth Naval Shipyard, Kittery, Maine, United States
Laid down: 11 August 1944
Launched: 1 December 1944
Commissioned: 31 March 1945
Decommissioned: 1 June 1964
Struck: 4 December 1971
Fate: Transferred to Pakistan on 1 June 1964
Pakistan
Name: PNS Ghazi
Cost: $1.5 million USD (1968) (Refit and MLU cost)
Acquired: 1 June 1964
Refit: 2 April 1970
Honors and
awards:
Fate: Sunk on 4 December 1971
General characteristics
Class and type: Tench-class diesel-electric submarine
Displacement:
  • 1,570 tons (1,595 t) surfaced
  • 2,414 tons (2,453 t) submerged
Length: 311 ft 8 in (95.00 m)
Beam: 27 ft 4 in (8.33 m)
Draft: 17 ft (5.2 m) maximum
Propulsion:
Speed:
  • 20.25 knots (37.50 km/h; 23.30 mph) surfaced
  • 8.75 knots (16.21 km/h; 10.07 mph) submerged
Range: 11,000 nautical miles (20,000 km; 13,000 mi) surfaced at 10 knots (19 km/h; 12 mph)
Endurance:
  • 48 hours at 2 knots (3.7 km/h; 2.3 mph) submerged
  • 75 days on patrol
Test depth: 400 ft (120 m)
Complement:
  • 10 officers, 71 enlisted (US service)
  • 7 officers and 69 men (Pakistani service)
Armament:

PNS Ghazi (previously USS Diablo (SS-479); reporting name: Ghazi), SJ, was a Tench-class diesel-electric and the first fast-attack submarine of Pakistan Navy (PN), leased from the United States in 1963.

She served in the United States Navy from 1945–63 and was loaned to Pakistan under the Security Assistance Program (SAP) on a four-year lease after Ayub administration successfully negotiating with the Kennedy administration for the procurement. In 1964, she joined the Pakistan Navy and saw the military actions in the Indo-Pakistani theaters in 1965 and, later in 1971 it got wrecked due to malfunction.

In 1968, she executed a circumnavigation of Africa and southern parts of Europe through the Indian Ocean to the Atlantic ocean due to the closure of the Suez Canal in order to be refit and update its computers from Gölcük in Turkey, and could be armed with up to ~28 Mk.14 torpedoes as well as had capability of mine-laying as part of her refit.


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