HMS ''Flint Castle'' (K383) was one of 44 s built for the

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

during

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. Completed at the end of 1943, the ship

ran aground Ship grounding or ship stranding is the impact of a ship on seabed or waterway side. It may be intentional, as in beaching to land crew or cargo, and careening, for maintenance or repair, or unintentional, as in a marine accident. In accidenta ...

while training in January 1944. After repairs were completed the following month, she was briefly assigned to the 39th Escort Group for

convoy A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used ...

escort duties in the

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

. ''Flint Castle'' was transferred to Escort Group B2 in March and screened convoys to and from

Gibraltar Gibraltar ( , ) is a British Overseas Territories, British Overseas Territory and British overseas cities, city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the A ...

until September. That month, she joined Escort Group B3 to escort convoys between Canada and Britain and continued to do so until the end of the war in May 1945. The ship then became an

anti-submarine An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon ...

training ship A training ship is a ship used to train students as sailors. The term is mostly used to describe ships employed by navies to train future officers. Essentially there are two types: those used for training at sea and old hulks used to house class ...

Rosyth Rosyth () is a town and Garden City in Fife, Scotland, on the coast of the Firth of Forth. Scotland's first Garden city movement, Garden City, Rosyth is part of the Greater Dunfermline Area and is located 3 miles south of Dunfermline city cen ...

and

Campbeltown Campbeltown (; or ) is a town and former royal burgh in Argyll and Bute, Scotland. It lies by Campbeltown Loch on the Kintyre Peninsula. Campbeltown became an important centre for Scotch whisky, and a busy fishing port. The 2018 populatio ...

, Scotland, before moving to

Portland Portland most commonly refers to: *Portland, Oregon, the most populous city in the U.S. state of Oregon *Portland, Maine, the most populous city in the U.S. state of Maine *Isle of Portland, a tied island in the English Channel Portland may also r ...

at the beginning of 1947. ''Flint Castle'' remained there until she was taken out of service in March 1956 and

broken up Ship breaking (also known as ship recycling, ship demolition, ship scrapping, ship dismantling, or ship cracking) is a type of ship disposal involving the breaking up of ships either as a source of Interchangeable parts, parts, which can be sol ...

beginning in July 1958.

Design and description

The Castle-class corvette was a stretched version of the preceding , enlarged to improve

seakeeping Seakeeping ability or seaworthiness is a measure of how well-suited a watercraft is to conditions when underway. A ship or boat which has good seakeeping ability is said to be very seaworthy and is able to operate effectively even in high sea stat ...

and to accommodate modern weapons. The ships displaced at

standard Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object ...

load and at

deep load The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weig ...

. The ships had an

overall length The overall length (OAL) of an ammunition cartridge is a measurement from the base of the brass shell casing to the tip of the bullet, seated into the brass casing. Cartridge overall length, or "COL", is important to safe functioning of reloads i ...

of , a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Radio beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially lo ...

of and a deep draught of . They were powered by a four-cylinder

triple-expansion steam engine A compound steam engine unit is a type of steam engine where steam is expanded in two or more stages. A typical arrangement for a compound engine is that the steam is first expanded in a high-pressure (HP) Cylinder (engine), cylinder, then ha ...

driving one

propeller shaft A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power, torque, and rotation, usually used to connect o ...

using steam provided by two

Admiralty three-drum boiler Three-drum boilers are a class of water-tube boiler used to generate steam, typically to power Steamship, ships. They are compact and of high evaporative power, factors that encourage this use. Other boiler designs may be more efficient, although ...

s. The engine developed a total of and gave a speed of . The Castles carried

fuel oil Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil (bunker fuel), marine f ...

that gave them a range of at . The ships' complement was 99 officers and ratings.Lenton, p. 297 The Castle-class ships were equipped with a single QF Mk XVI

dual-purpose gun A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets. Description Second World War-era capital ships had four classes of artillery: the heavy main battery, intended to engage opposing battleships and ...

forward, but their primary weapon was their single three-barrel

Squid A squid (: squid) is a mollusc with an elongated soft body, large eyes, eight cephalopod limb, arms, and two tentacles in the orders Myopsida, Oegopsida, and Bathyteuthida (though many other molluscs within the broader Neocoleoidea are also ...

anti-submarine mortar Anti-submarine mortars are artillery pieces deployed on ships for the purpose of sinking submarines by a direct hit with a small explosive charge. They are often larger versions of the Mortar (weapon), mortar used by infantry and fire a projecti ...

. This was backed up by one

depth charge rail A depth charge is an anti-submarine warfare (ASW) weapon designed to destroy submarines by detonating in the water near the target and subjecting it to a destructive hydraulic shock. Most depth charges use high explosives with a fuze set to deto ...

and two throwers for 15 depth charges. The ships were fitted with two twin and a pair of single mounts for Oerlikon

AA gun Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface ( submarine-launched), and air-bas ...

s. Provision was made for a further four single mounts if needed. They were equipped with Type 145Q and Type 147B

ASDIC Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects o ...

sets to detect submarines by reflections from sound waves beamed into the water. A Type 272

search radar This is a list of different types of radar. Detection and search radars Search radars scan great volumes of space with pulses of short radio waves. They typically scan the volume two to four times a minute. The radio waves are usually less than a ...

and a

HF/DF High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is a type of radio direction finder (RDF) introduced in World War II. High frequency (HF) refers to a radio band that can effectively communicate ove ...

radio direction finder Direction finding (DF), radio direction finding (RDF), or radiogoniometry is the use of radio waves to determine the direction to a radio source. The source may be a cooperating radio transmitter or may be an inadvertent source, a natural ...

rounded out the Castles' sensor suite.

Construction and career

''Flint Castle'', the only ship of her name to serve in the Royal Navy, was ordered on 19 January 1943 and

laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one ...

Henry Robb Henry Robb, Limited, known colloquially as Robbs, was a Scottish shipbuilding company based at Leith Docks in Edinburgh. Robbs built small-to-medium sized vessels, particularly tugs and dredgers. History The company was founded on 1 April ...

at their

shipyard A shipyard, also called a dockyard or boatyard, is a place where ships are shipbuilding, built and repaired. These can be yachts, military vessels, cruise liners or other cargo or passenger ships. Compared to shipyards, which are sometimes m ...

Leith Leith (; ) is a port area in the north of Edinburgh, Scotland, founded at the mouth of the Water of Leith and is home to the Port of Leith. The earliest surviving historical references are in the royal charter authorising the construction of ...

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

on 20 April. The ship was launched on 1 September and completed on 31 December. She was damaged by an accidental explosion alongside Barrage Vessel BV 42 on 22 December 1943 and one man killed on each vessel. BV 42 sank. She arrived at

Tobermory, Mull Tobermory (; ) is the capital of, and until 1973 the only burgh on, the Isle of Mull in the Scottish Inner Hebrides. It is located on the east coast of Mishnish, the most northerly part of the island, near the northern entrance of the Sound of ...

, Scotland, on 12 January 1944 to begin training at the Royal Navy's Anti-Submarine Training School, . ''Flint Castle'' ran aground while training on 18 January and was refloated. She arrived at

Belfast Belfast (, , , ; from ) is the capital city and principal port of Northern Ireland, standing on the banks of the River Lagan and connected to the open sea through Belfast Lough and the North Channel (Great Britain and Ireland), North Channel ...

Northern Ireland Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...

, the following day to begin repairs that lasted until 9 February. The ship was then assigned to the 39th Escort Group and escorted one Atlantic convoy in mid-March before being transferred to the

Liverpool Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...

-based Escort Group B2 to escort convoys to and from Gibraltar. In September 1944, ''Flint Castle'' was assigned to Escort Group B3, which protected convoys sailing between

St. John's, Newfoundland and Labrador St. John's is the capital and largest city of the Canadian province of Newfoundland and Labrador. It is located on the eastern tip of the Avalon Peninsula on the island of Newfoundland. The city spans and is the easternmost city in North Ame ...

, Canada, and Britain. The ship was refitted in

Cardiff Cardiff (; ) is the capital city, capital and List of urban areas in the United Kingdom, largest city of Wales. Cardiff had a population of in and forms a Principal areas of Wales, principal area officially known as the City and County of Ca ...

Wales Wales ( ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by the Irish Sea to the north and west, England to the England–Wales border, east, the Bristol Channel to the south, and the Celtic ...

, in January–March 1945 and rejoined her group in

in April. She was assigned to Rosyth Command in June as an anti-submarine training ship and visited ports in Norway and Germany over the next several months. ''Flint Castle'' was transferred to the Rosyth Escort Force in June 1946, which was employed as a training unit; it was redesignated as the Basic Anti-Submarine Training Flotilla in September. The unit was then transferred to

and used a variety of names before settling on the Second Training Squadron in January 1952.Goodwin, pp. 155–60 On 15 June 1953, she took part in the Fleet Review held at

Spithead Spithead is an eastern area of the Solent and a roadstead for vessels off Gilkicker Point in Hampshire, England. It is protected from all winds except those from the southeast, with the Isle of Wight lying to the south-west. Spithead and the ch ...

to celebrate the Coronation of

Queen Elizabeth II Elizabeth II (Elizabeth Alexandra Mary; 21 April 19268 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until Death and state funeral of Elizabeth II, her death in 2022. ...

. The ship was used to portray a German anti-submarine vessel in the 1955

film A film, also known as a movie or motion picture, is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, emotions, or atmosphere through the use of moving images that are generally, sinc ...

The Cockleshell Heroes ''The Cockleshell Heroes'' is a 1955 British Technicolor war film with Trevor Howard, Anthony Newley, Christopher Lee, David Lodge and José Ferrer, who also directed. The film depicts a heavily fictionalised version of Operation Frankton, t ...

''. ''Flint Castle'' was taken out of service in March 1956 at Devonport Dockyard, until her demolition began, starting on 10 July 1958 at

Faslane His Majesty's Naval Base, Clyde (HMNB Clyde; also HMS ''Neptune''), primarily sited at Faslane on the Gare Loch, is one of three operating bases in the United Kingdom for the Royal Navy (the others being HMNB Devonport and HMNB Portsmouth). It ...

. While her service was uneventful, ''Flint Castle'' was awarded the

battle honour A battle honour is an award of a right by a government or sovereign to a military unit to emblazon the name of a battle or Military operation, operation on its flags ("colours"), uniforms or other accessories where ornamentation is possible. In ...

of Atlantic 1944–45.

References

Bibliography

* * * * {{DEFAULTSORT:Flint Castle Castle-class corvettes 1943 ships