HMS Alacrity (F174) was a Type 21 frigate

Type 21 frigate

The Type 21 frigate or Amazon-class frigate was a Royal Navy general-purpose escort designed in the late 1960s, built in the 1970s and that served throughout the 1980s into the 1990s.-History:...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

. Built by Yarrow Shipbuilders Ltd, Glasgow

Glasgow

Glasgow is the largest city in Scotland and third most populous in the United Kingdom. The city is situated on the River Clyde in the country's west central lowlands...

, Scotland, she was completed with Exocet

Exocet

The Exocet is a French-built anti-ship missile whose various versions can be launched from surface vessels, submarines, helicopters and fixed wing aircraft. Hundreds were fired in combat during the 1980s.-Etymology:...

 launchers in "B" position.

Alacrity participated in the Falklands War

Falklands War

The Falklands War , also called the Falklands Conflict or Falklands Crisis, was fought in 1982 between Argentina and the United Kingdom over the disputed Falkland Islands and South Georgia and the South Sandwich Islands...

, departing Devonport

HMNB Devonport

Her Majesty's Naval Base Devonport , is one of three operating bases in the United Kingdom for the Royal Navy . HMNB Devonport is located in Devonport, in the west of the city of Plymouth in Devon, England...

 on 5 April 1982. She was commanded at the time by Commander Christopher Craig.

The most notable incident involving Alacrity was the sinking of the Argentine supply ship ARA Isla de los Estados

ARA Isla de los Estados

The ARA Isla de los Estados was a 3,900-ton Argentine supply ship that was sunk by HMS Alacrity at the small hours of the 11th May 1982, during the Falklands War, in a surface action north of Swan Islands, in Falklands Sound. Alacrity engaged Isla de los Estados with 15 rounds of her 4.5-inch gun...

 by gunfire over the night of 10–11 May 1982, near Swan Islands

Swan Islands, Falkland Islands

The Swan Islands are a small group of islands in the middle of Falkland Sound in the Falkland Islands.-Geography and wildlife:The islands are low-lying, and mainly covered in tussac grass, with the birdlife common to most of the Falkland Islands....

. At the time, Alacrity was on a mission to establish whether or not the Argentines had mined the north entrance to Falkland Sound. Alacrity was slightly damaged by an Argentine bomb on 1 May.

As Alacrity exited the Falkland Sound

Falkland Sound

The Falkland Sound is a sea strait in the Falkland Islands. Running south west - north east, it separates West and East Falkland.-Name:The sound was named by John Strong in 1690 for Viscount Falkland, the name only later being applied to the archipelago and its two largest islands...

 on 11 May, the Argentine submarine, ARA San Luis

ARA San Luis

The ARA San Luis is a Type 209 diesel-powered submarine of the Argentine Navy. Built in Germany, San Luis has a displacement of 1,285 tonnes and was introduced to the ARA in 1978. She was struck in 1997 after an incomplete overhaul.- History :...

 was reported to have fired two torpedoes at Alacrity and her sister ship Arrow

HMS Arrow (F173)

HMS Arrow was a Type 21 frigate of the Royal Navy. Built by Yarrow Shipbuilders Ltd, Glasgow, Scotland, she was completed with Exocet launchers in 'B' position.-Falklands War service:...

. Luckily for the British, these missed the ships and both Type 21 frigates rejoined the Task Force.

As with the other surviving Type 21 frigates, Alacrity was suffering from cracking in her hull by the mid-1980s. She was taken in for refitting, with a steel plate being welded down each side of the ship. At the same time modifications were made to reduce hull noise.

Alacrity was decommissioned and transferred to Pakistan

Pakistan

Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

 on 1 March 1994, being renamed Badr. Exocet was not transferred to Pakistan and Badr had her obsolete Sea Cat launcher removed. A Chinese LY 60N missile launcher was fitted in place of the Exocet launchers. Signaal DA08 air search radar replaced the Type 992 and SRBOC

Mark 36 SRBOC

The BAE Systems Mark 36 Super Rapid Blooming Offboard Chaff is a short-range mortar that launches chaff or infrared decoys from naval vessels to foil anti-ship missiles...

 chaff launchers and 20 mm and 30 mm guns were fitted.

Badr remains in service with the Pakistan Navy

Pakistan Navy

The Pakistan Navy is the naval warfare/service branch of the Pakistan Armed Forces. Pakistan's Navy is responsible for Pakistan's coastline along the Arabian Sea and the defense of important civilian harbors and military bases...

.