View source for Algerine-class minesweeper

{{Short description|Class of ships built for the navies of Britain and Canada during World War II}}
{{for|other Algerine ship classes|Algerine (disambiguation)}}
{{Use dmy dates|date=February 2018}}
{{Use British English|date=February 2018}}
{|{{Infobox ship begin}}
{{Infobox ship image
|Ship image=HMS Algerine FL472.jpg
|Ship caption=[[HMS Algerine (J213)|HMS ''Algerine'']]
}}
{{Infobox ship class overview
|Name=''Algerine'' class
|Builders=*United Kingdom (50)
* Canada (60)
|Operators=*{{navy|United Kingdom}}
* {{naval|Canada|1911}}
* {{navy|Belgium}}
* {{flagicon image|Naval Ensign of Burma (1948-1974).svg}} [[Myanmar Navy|Burmese Navy]]
* {{navy|Greece}}
* {{navy|Pahlavi Iran}}
* {{navy|Italy|1950}}
* {{flagicon image|Naval Ensign of Nigeria (1960–1998).svg}} [[Nigerian Navy|Royal Nigerian Navy]]
* {{navy|South Africa|1952}}
* {{navy|Ceylon}}
* {{navy|Sri Lanka}}
* {{navy|Thailand}}
|Class before={{sclass|Bangor|minesweeper|4}}
|Class after={{sclass2|Ton|minesweeper|4}}
|Subclasses=
|Cost=
|Built range=
|In service range= 1942
|In commission range=
|Total ships building=
|Total ships planned=
|Total ships completed=110
|Total ships cancelled=
|Total ships active=0
|Total ships laid up=
|Total ships lost=6
|Total ships retired=104
|Total ships preserved=*1
* [[HTMS Phosampton|HTMS ''Phosampton'']]
}}
{{Infobox ship characteristics
|Hide header=
|Header caption=
|Ship type=[[Minesweeper]]
|Ship displacement=*{{convert|850|-|1030|LT|t|0|abbr=on}} (standard)
* {{convert|1125|-|1325|LT|t|0|abbr=on}} (deep)
|Ship length={{convert|225|ft|m|abbr=on}} [[Length overall|o/a]]
|Ship beam={{convert|35|ft|6|in|m|abbr=on}}
|Ship draught={{convert|11|ft|m|abbr=on}}–{{convert|12|ft|3|in|m|abbr=on}}
|Ship depth=
|Ship hold depth=
|Ship power=*2 × [[Admiralty 3-drum boiler]]s
* {{convert|2400|ihp|abbr=on|lk=in}} (VTE) '''or'''
* {{convert|2000|shp|abbr=on|lk=in}} (turbine)
|Ship propulsion=*2 shafts
* 2 [[Marine steam engine#Triple or multiple expansion|vertical triple-expansion steam engines]] '''or'''
* 2 [[steam turbine]]s
|Ship speed={{convert|16.5|kn|lk=in}}
|Ship range={{convert|5000|nmi|lk=in|abbr=on}} at {{convert|10|kn}}
|Ship complement=85
|Ship sensors=
|Ship EW=
|Ship armament=*1 × [[QF 4 inch Mk V naval gun|QF {{convert|4|in|mm|abbr=on|0}} Mk V anti-aircraft gun]]
* 4 × twin [[Oerlikon 20 mm cannon]]
* [[Hedgehog (weapon)|Hedgehog]] (Escorts only)
}}
|}

The '''''Algerine''-class minesweeper''' was a large group of [[minesweeper]]s built for the [[Royal Navy]] (RN) and the [[Royal Canadian Navy]] (RCN) during the Second World War. 110 ships of the class were launched between 1942 and 1944.

==Design and description==
By 1940 the Royal Navy had realized that the {{sclass|Bangor|minesweeper}}s were too small to carry the equipment needed to handle [[magnetic mine]]s.{{Citation needed|date=April 2022|reason=This claim doesn't make sense, look at these ships: [[MMS-class minesweeper]], they were much smaller than Bangor but able to deal with the magnetic mines.}} A bigger ship was designed, ironically about the same size as the older {{sclass|Halcyon|minesweeper|4}} that the Royal Navy had rejected earlier as too large and expensive for mass production. The size of the new ship made them suitable for use as ocean-going escort ships and many were used to supplement specialist escorts. Most of the ships built for the RCN were solely employed as such and were fitted with more anti-submarine weapons than the RN ships. To maximise production, alternate designs were made to use either [[steam turbine]]s or [[Reciprocating engine|reciprocating steam engines]].<ref name=Lenton260-1>Lenton, pp. 260–261</ref> This enabled ships to be built at yards more used to merchant ship design and as with other mass-produced escort vessels (such as the {{sclass2|Flower|corvette}}s or the {{sclass2|River|frigate}}s, could use merchant-style reciprocating [[vertical triple expansion]] (VTE) engines.

Both groups of ships had the same dimensions, although the VTE powered ships had a greater displacement and a deeper draught.
The hull measured {{convert|225|ft|m|1}} [[length overall|long overall]] with a [[beam (nautical)|beam]] of {{convert|35|ft|6|in|m|1}}. The turbine group had a [[draft (hull)|draught]] of {{convert|11|ft|m|1}} while the reciprocating engined ships sat {{convert|1|ft|3|in|m|1}} deeper in the water.
The turbine-powered ships displaced {{convert|850|LT|t}} at [[Displacement (ship)|standard]] load and {{convert|1125|LT|t}} at [[deep load]] while the reciprocating engined group displaced {{convert|1010|-|1030|LT|t}} at standard load and {{convert|1305|-|1325|LT|t}} at deep load.
The ships' complement consisted of 85 officers and [[naval rating|ratings]].<ref name=Lenton260-1/>

The turbine-powered ships had two [[Parsons Marine Steam Turbine Company|Parsons]] geared steam turbines, each driving one shaft, using steam provided by two [[Admiralty three-drum boiler]]s. The engines produced a total of {{convert|2000|shp|lk=in}} and gave a maximum speed of {{convert|16.5|kn|lk=in}}. The reciprocating engined ships had two [[Marine steam engine#Triple or multiple expansion|vertical triple-expansion steam engines]] totalling {{convert|2400|ihp|lk=in}} and reached the same speed. They carried a maximum of {{convert|660|LT|t|0}} of [[fuel oil]] that gave them a range of {{convert|5000|nmi|lk=in}} at {{convert|10|kn}}.<ref name=Lenton260-1/>

The ''Algerine'' class was armed with a [[QF 4 inch Mk V naval gun|QF {{convert|4|in|mm|abbr=on|0}} Mk V]] [[anti-aircraft gun]] and four twin-gun mounts for [[Oerlikon 20 mm cannon]].<ref name=c1>Chesneau, p. 65</ref> The latter guns were in short supply when the first ships were being completed and they often got a proportion of single mounts. By 1944, single-barrel [[Bofors 40 mm Automatic Gun L/60|Bofors 40 mm]] mounts began replacing the twin 20&nbsp;mm mounts on a one for one basis. All of the ships were fitted for four throwers and two rails for [[depth charge]]s. Many Canadian ships omitted their sweeping gear in exchange for a 24-bomb [[Hedgehog (weapon)|Hedgehog]] [[spigot mortar]] and a stowage capacity for 90+ depth charges.<ref name=Lenton260-1/>

The construction contracts were awarded to shipbuilders in both the United Kingdom and Canada.
{{colbegin}}
* United Kingdom
** [[Blyth Shipbuilding Company|Blyth Dry Docks & Shipbuilding Co.]], [[Blyth, Northumberland|Blyth]]
** [[Fleming and Ferguson|Fleming & Ferguson]], [[Port Glasgow]]
** [[Harland and Wolff|Harland & Wolff]], [[Belfast]]
** [[Lobnitz|Lobnitz & Co.]], [[Paisley, Renfrewshire|Paisley]]
** [[William Simons & Co.]], Paisley
* Canada
** [[Collingwood Shipbuilding|Collingwood Shipbuilding Co.]], [[Collingwood, Ontario|Collingwood]]
** [[Port Arthur Shipbuilding Company|Port Arthur Shipbuilding Co.]], [[Thunder Bay]]
** [[Toronto Shipbuilding Company|Toronto Shipbuilding Co.]], [[Toronto]]
** [[Redfern Construction Company|Redfern Construction Co.]], Toronto
{{colend}}

==Construction==
A total of 94 ''Algerine'' class vessels served with the Royal Navy; of these 45 were built in the UK and another 49 in Canada. A further 12 vessels served with the Royal Canadian Navy; all these were built in Canada.

The ships were built in the UK were ordered under the 1940 to 1943 war emergency building programmes.
The companies involved were [[Harland & Wolff]] (22), [[Lobnitz]] (18), [[Blyth Shipbuilding Company|Blyth]] (2), [[Fleming & Ferguson]] (1) and [[William Simons & Co.|William Simons]] (2). Another 15 were ordered in 1943 but cancelled, to free yard space for building [[Loch-class frigate]]s.
The ships were built in two types; 26 powered by steam turbine and 22 by reciprocating or vertical triple expansion (VTE) steam engines. The turbine powered ships were all built by Harland & Wolff, save two, built at Blyth; the VTE powered ships were built at Lobnitz, Simons and Fleming & Ferguson.<ref>Elliott, pp. 307–308</ref>

Of the ships built in Canada, the companies involved were [[Toronto Shipbuilding Company|Toronto Shipbuilding]] (later [[Redfern Construction Company|Redfern]]), [[Port Arthur Shipbuilding Company|Port Arthur]] and [[Collingwood Shipbuilding|Collingwood]]. All the Canadian-built ships were VTE powered. Only 12 of these ships served with the RCN; a further 17 were built for the RCN but transferred to the Royal Navy in exchange for an equal number of Castle-class corvettes, as the RCN was in need of escort vessels. Fourteen ships were built for the United States Navy, but again were transferred to the RN on completion under [[Lend-Lease]]. Nineteen ships were ordered directly by the RN under the 1943 programme; a further six ships were ordered, but cancelled.<ref>Elliott, p. 352</ref>

==Service history==
The ''Algerine'' class vessels in service with the Royal Navy were employed mainly as minesweepers, though they were equipped as anti-submarine warfare vessels also, and could serve as escort ships as needed. Their [[ASDIC]] and [[depth-charge]] equipment was equal to that of the Flower-class corvettes or even River-class frigates, though they were not equipped with forward-firing weapons like Hedgehog. Five ''Algerine''s were sunk in action, and four others were declared [[constructive total loss]]es after sustaining damage.<ref name=Elliott314>Elliott, p. 314</ref> The ''Algerine''s of the Royal Canadian Navy by contrast were employed as escorts. They were not fitted with mine-sweeping gear, though they were optimized for service in the Arctic. The ''Algerine''s served principally as senior ships in Canadian escort groups of the [[Western Local Escort Force]] and the [[Halifax Force]]. No RCN vessels of the class were lost.<ref>Elliott, p. 355</ref>

==Post-war service==
After the war, a number of ''Algerine''s continued in service as [[patrol boats]], [[survey ships]], and [[training ships]]. On 11 March 1959, HMS ''Acute'' and HMS ''Jewel'', training ships at Dartmouth, rescued the burning German coaster ''Vorman Rass'', off Start Point, Devon.<ref>{{Cite web|url=https://www.iwm.org.uk/collections/item/object/205016409|title=Navy aids burning German ship|website=Imperial War Museums|language=en|access-date=2018-10-11}}</ref>
At least one, HMS ''Pickle'',  was still engaged in minesweeping duties in British waters as late as 1955.
All ''Algerine''s in RN and RCN service were disposed of by the late 1950s or early 1960s.<ref name=Conway65>Conway, p. 65</ref>

Some were sold to other navies or into merchant service. The fourteen ships under Lend-Lease were returned to the USN in 1946; five of these later transferred to the Greek Navy. Of the RN ships, five were transferred to the Belgian Navy, two to South Africa and two to Ceylon; another five, one apiece, were acquired by Burma, Nigeria, Italy, Iran, and Thailand. Two RCN ships were transferred to Belgium in 1959 as replacements for two ex-RN ships that were due for disposal.  One, HTMS ''Phosampton'' (ex-{{HMS|Minstrel|J445|6}}), was in service until 2012 with the [[Royal Thai Navy]].

== Ships ==

{| class="wikitable sortable plainrowheaders"
|+ ''Algerine''-class ships of the [[Royal Canadian Navy]]
|-
! scope="col" | Name<ref name=Conway65/>
! scope="col" | Builder
! scope="col" | Powerplant
! scope="col" | Fate
|-
! scope="row" | {{HMCS|Border Cities|J344|3}}
| [[Port Arthur Shipbuilding Company|Port Arthur Shipbuilding]]
| Reciprocating
| 1948 sold for demolition
|-
! scope="row" | {{HMCS|Fort Frances|J396|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1948 transferred to Department of Mines and Technical Surveys <br>1974 broken up
|-
! scope="row" | {{HMCS|Kapuskasing|J326|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1949-1972 loaned to Department of Mines and Technical Surveys <br>1978 sunk as a target
|-
! scope="row" | {{HMCS|Middlesex|J328|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 2 December 1946 aground near Halifax and became a total loss
|-
! scope="row" | {{HMCS|New Liskeard|J397|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1969 broken up
|-
! scope="row" | {{HMCS|Oshawa|J330|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1958 sold as civilian survey vessel<br> 1966 broken up
|-
! scope="row" | {{HMCS|Portage|J331|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1961 broken up
|-
! scope="row" | {{HMCS|Rockcliffe|J335|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1960 broken up
|-
! scope="row" | {{HMCS|Sault Ste. Marie|J334|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1960 broken up
|-
! scope="row" | {{HMCS|St. Boniface|J332|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1948 sold mercantile as ''Bess Barry M.''
|-
! scope="row" | {{HMCS|Wallaceburg|J336|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1959 sold to Belgian Navy as ''Georges Lecointe''<br>1970 broken up
|-
! scope="row" | {{HMCS|Winnipeg|J337|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1959 sold to Belgian Navy as ''A.F. Dufour''<br>1966 broken up
|}

{| class="wikitable sortable plainrowheaders"
|+ ''Algerine''-class ships of the [[Royal Navy]]
|-
! scope="col" | Name<ref name=Conway65/>
! scope="col" | Builder
! scope="col" | Powerplant
! scope="col" | Fate
|-
! scope="row" | {{HMS|Acute|J106|3}}
| [[Harland and Wolff|Harland & Wolff]]
| Turbine
| 1964 destroyed as a target
|-
! scope="row" | {{HMS|Alarm|J140|3}}
| Harland & Wolff
| Turbine
| 2 January 1943 badly damaged by mine near Bône<br>December 1943 sold for demolition
|-
! scope="row" | {{HMS|Albacore|J101|3}}
| Harland & Wolff
| Turbine
| 1963 broken up
|-
! scope="row" | {{HMS|Algerine|J213|3}}
| Harland & Wolff
| Turbine
| 15 November 1942 sunk by Italian submarine off Bougie
|-
! scope="row" | {{HMS|Antares|J282|3}}
| [[Toronto Shipbuilding Company|Toronto Shipbuilding]]
| Reciprocating
| 1947 returned to USA after lend-lease
|-
! scope="row" | {{HMS|Arcturus|J283|3}}
| [[Redfern Construction Company|Redfern Construction]]<ref>Conway, p.65; Elliott p.312 says Toronto Shipbuilding Co.</ref>
| Reciprocating
| 1946 returned to USA after lend-lease<br>1946 sold to [[Hellenic Navy]] as ''Pyrpolitis''<br>1984 sunk as a target
|-
! scope="row" | {{HMS|Aries|J284|3}}
| Toronto Shipbuilding
| Reciprocating
| 1946 returned to USA after lend-lease<br>1947 sold to Hellenic Navy as ''Armatolos''<br>1977 sunk as a target
|-
! scope="row" | {{HMS|Bramble|J273|2}}
| [[Lobnitz|Lobnitz & Co]]
| Reciprocating
| 1961 broken up
|-
! scope="row" | {{HMS|Brave|J305|3}}
| [[Blyth Shipbuilding Company|Blyth Dry Docks]]
| Turbine
| 1951 RNVR drillship ''Satellite''<br>1958 broken up
|-
! scope="row" | {{HMS|Cadmus|J230|3}}
| Harland & Wolff
| Turbine
| 1950 sold to Belgian Navy as ''Georges Lecointe''<br>1960 broken up
|-
! scope="row" | {{HMS|Chameleon|J387|3}}
| Harland & Wolff
| Turbine
| 1966 broken up
|-
! scope="row" | {{HMS|Cheerful|J388|3}}
| Harland & Wolff
| Turbine
| 1963 broken up
|-
! scope="row" | {{HMS|Circe|J214|3}}
| Harland & Wolff
| Turbine
| 1967 broken up
|-
! scope="row" | {{HMS|Clinton|J286|3}}
| Toronto Shipbuilding
| Reciprocating
| 1947 returned to USA after lend-lease
|-
! scope="row" | {{HMS|Cockatrice|J229|3}}
| [[Fleming and Ferguson|Fleming & Ferguson]]
| Reciprocating
| 1963 broken up
|-
! scope="row" | {{HMS|Coquette|J350|3}}
| Redfern Construction
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Courier|J349|3}}
| Redfern Construction
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Espiegle|J216|3}}
| Harland & Wolff
| Turbine
| 1967 broken up
|-
! scope="row" | {{HMS|Fancy|J308|3}}
| Blyth Dry Docks
| Turbine
| 1950 sold to Belgian Navy as ''A. F. Dufour''<br>1959 renamed ''Nzadi''<br>1960 broken up
|-
! scope="row" | {{HMS|Fantome|J224|3}}
| Harland & Wolff
| Turbine
| 1947 broken up
|-
! scope="row" | {{HMS|Felicity|J369|3}}
| Redfern Construction
| Reciprocating
| 1947 sold mercantile as ''Fairfree''<br>1957 broken up
|-
! scope="row" | {{HMS|Fierce|J453|3}}
| Lobnitz & Co
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Fly|J306|3}}
| Lobnitz & Co
| Reciprocating
| 1949 sold to Imperial Iranian Navy as ''Palang''<br> 1972 broken up
|-
! scope="row" | {{HMS|Flying Fish|J370|3}}
| Redfern Construction
| Reciprocating
| 1949 gifted to [[Royal Ceylon Navy]] as {{ship|HMCyS|Vijaya}}<br>1972 Sri Lanka Navy<br>1975 broken up
|-
! scope="row" | {{HMS|Friendship|J398|3}}
| Toronto Shipbuilding
| Reciprocating
| 1947 returned to USA after lend-lease
|-
! scope="row" | {{HMS|Golden Fleece|J376|3}}
| Redfern Construction
| Reciprocating
| 1960 broken up
|-
! scope="row" | {{HMS|Gozo|J287|3}}
| Redfern Construction
| Reciprocating
| 1946 returned to USA after lend-lease<br>1947 sold to [[Hellenic Navy]] as ''Polemistis''<br>1977 deleted
|-
! scope="row" | {{HMS|Hare|J389|3}}
| Harland & Wolff
| Turbine
| 21 July 1959 sold to [[Nigerian Navy]] as HMNS ''Nigeria'' <br>1962 broken up
|-
! scope="row" | {{HMS|Hound|J307|3}}
| Lobnitz & Co
| Reciprocating
| 1962 broken up
|-
! scope="row" | {{HMS|Hydra|J275|3}}
| Lobnitz & Co
| Reciprocating
| 10 November 1944 damaged by mine and not repaired<br> 1947 broken up
|-
! scope="row" | {{HMS|Jaseur|J428|3}}
| Redfern Construction
| Reciprocating
| 1956 broken up
|-
! scope="row" | {{HMS|Jewel|J390|3}}
| Harland & Wolff
| Turbine
| 1967 broken up
|-
! scope="row" | {{HMS|Laertes|J433|3}}
| Redfern Construction
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Larne|J274|3}}
| Lobnitz & Co<br>(transferred from [[William Simons & Co.|William Simons]])
| Reciprocating
| 1947 sold to Italian Navy as ''Eritrea''
|-
! scope="row" | {{HMS|Lennox|J276|3}}
| Lobnitz & Co<br>(transferred from William Simons)
| Reciprocating
| 1961 broken up
|-
! scope="row" | {{HMS|Liberty|J391|3}}
| Harland & Wolff
| Turbine
| 1949 sold to Belgian Navy as ''Adrien de Gerlache''<br>1969 sold for demolition
|-
! scope="row" | {{HMS|Lightfoot|J288|3}}
| Redfern Construction
| Reciprocating
| 1946 returned to USA after lend-lease<br>1947 sold to Hellenic Navy as ''Navmachos''<br>1976 withdrawn
|-
! scope="row" | {{HMS|Lioness|J377|3}}
| Redfern Construction
| Reciprocating
| 1956 broken up
|-
! scope="row" | {{HMS|Loyalty|J217|2}}<br>ex-''Rattler''(1943)
| Harland & Wolff
| Turbine
| 22 August 1944 sunk by German submarine in the English Channel
|-
! scope="row" | {{HMS|Lysander|J379|2}}<br>HMS ''Cornflower'' 1950-1951
| [[Port Arthur Shipbuilding Company|Port Arthur Shipbuilding]]
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Maenad|J335|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Magicienne|J436|3}}
| Redfern Construction
| Reciprocating
| 1956 broken up
|-
! scope="row" | {{HMS|Mameluke|J437|3}}
| Redfern Construction
| Reciprocating
| 1950 broken up
|-
! scope="row" | {{HMS|Mandate|J438|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Mariner|J380|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1958 sold to Burmese Navy as ''Yan Myo Aung''<br> 1982 withdrawn and laid up
|-
! scope="row" | {{HMS|Marmion|J381|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Marvel|J443|3}}
| Redfern Construction
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Mary Rose|J360|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Melita|J289|3}}
| Redfern Construction
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Michael|J444|3}}
| Redfern Construction
| Reciprocating
| 1956 broken up
|-
! scope="row" | {{HMS|Minstrel|J445|3}}
| Redfern Construction
| Reciprocating
| 1947 sold to Royal Thai Navy as ''Phosampton''<br>2012 withdrawn from service
|-
! scope="row" | {{HMS|Moon|J329|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Mutine|J227|3}}
| Harland & Wolff
| Turbine
| 1967 broken up
|-
! scope="row" | {{HMS|Myrmidon|J454|3}}
| Redfern Construction
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Mystic|J455|3}}
| Redfern Construction
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Nerissa|J456|3}}
| Redfern Construction
| Reciprocating
| 1960 broken up
|-
! scope="row" | {{HMS|Niger|J442|3}}
| Lobnitz & Co
| Reciprocating
| 1966 broken up
|-
! scope="row" | {{HMS|Octavia|J290|3}}
| Redfern Construction
| Reciprocating
| 1950 broken up
|-
! scope="row" | {{HMS|Onyx|J221|3}}
| Harland & Wolff
| Turbine
| 1967 broken up
|-
! scope="row" | {{HMS|Orcadia|J462|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Orestes|J277|3}}
| Lobnitz & Co
| Reciprocating
| 1963 broken up
|-
! scope="row" | {{HMS|Ossory|J463|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Pelorus|J291|3}}
| Lobnitz & Co
| Reciprocating
| 1947 sold to [[South African Navy]] as HMSAS ''Pietermaritzburg'')<ref name="SAN"/><br> 1976 stricken<br> 19 November 1994 scuttled in Smitswinkel Bay, South Africa
|-
! scope="row" | {{HMS|Persian|J347|3}}
| Redfern Construction
| Reciprocating
| 1946 returned to USA after lend-lease<br>1948 transferred to State Department
|-
! scope="row" | {{HMS|Pickle|J293|3}}
| Harland & Wolff
| Turbine
| 1959 sold to [[Royal Ceylon Navy]] as {{ship|HMCyS|Parakrama}}<br> 1964 broken up
|-
! scope="row" | {{HMS|Pincher|J294|3}}
| Harland & Wolff
| Turbine
| 1962 broken up
|-
! scope="row" | {{HMS|Plucky|J295|3}}
| Harland & Wolff
| Turbine
| 1962 broken up
|-
! scope="row" | {{HMS|Pluto|J446|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1973 broken up
|-
! scope="row" | {{HMS|Polaris|J447|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1956 broken up
|-
! scope="row" | {{HMS|Postillion|J296|3}}
| Redfern Construction
| Reciprocating
| 1946 returned to USA after lend-lease<br>1947 sold to Hellenic Navy as ''Machitis''<br> 1976 withdrawn
|-
! scope="row" | {{HMS|Prompt|J378|3}}
| Redfern Construction
| Reciprocating
| 8 May 1945 damaged by mine (CTL)<br> 1947 broken up
|-
! scope="row" | {{HMS|Providence|J325|3}}
| Redfern Construction
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Pyrrhus|J448|3}}
| Port Arthur Shipbuilding
| Reciprocating
| 1956 broken up
|-
! scope="row" | ''Rattler''<br>see {{HMS|Loyalty|J217|2}}
| Harland & Wolff
| Turbine
| 22 August 1944 sunk by submarine in the English Channel
|-
! scope="row" | {{HMS|Rattlesnake|J297|3}}
| Lobnitz & Co
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Ready|J223|3}}
| Harland & Wolff
| Turbine
| 1951 sold to Belgian Navy as ''Jan van Haverbeke''<br>1961 broken up
|-
! scope="row" | {{HMS|Recruit|J298|3}}
| Harland & Wolff
| Turbine
| 1965 broken up
|-
! scope="row" | {{HMS|Regulus|J327|3}}
| Toronto Shipbuilding
| Reciprocating
| 12 January 1945 sunk by mine in Corfu Channel
|-
! scope="row" | {{HMS|Rifleman|J299|3}}
| Harland & Wolff
| Turbine
| 1972 broken up
|-
! scope="row" | {{HMS|Rinaldo|J225|3}}
| Harland & Wolff
| Turbine
| 1961 broken up
|-
! scope="row" | {{HMS|Romola|J449|3}}
| [[Collingwood Shipbuilding]] <br>(transferred from Port Arthur Shipbuilding)
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Rosamund|J439|3}}
| Collingwood Shipbuilding <br>(transferred from Port Arthur Shipbuilding)
| Reciprocating
| 1947 sold to South African Navy as [[HMSAS Bloemfontein|HMSAS ''Bloemfontein'']]<ref name="SAN">{{cite web|url=http://www.navy.mil.za/aboutus/history/index.htm|title=History of the SA Navy|publisher=[[South African Navy]]|access-date=2008-02-18| archive-url= https://web.archive.org/web/20080223071216/http://www.navy.mil.za/aboutus/history/index.htm| archive-date= 23 February 2008 | url-status= live}}</ref><br>5 June 1967 sunk as a target off Simonstown
|-
! scope="row" | {{HMS|Rosario|J219|3}}
| Harland & Wolff
| Turbine
| 1951 sold to Belgian Navy as ''De Moor''<br>1969 broken up
|-
! scope="row" | {{HMS|Rowena|J384|3}}
| Lobnitz & Co
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Seabear|J333|3}}
| Redfern Construction
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Serene|J354|3}}
| Redfern Construction
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Skipjack|J300|3}}
| Redfern Construction
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Spanker|J226|3}}
| Harland & Wolff
| Turbine
| 1953 sold to Belgian Navy as ''De Brouwer''<br>1963 broken up
|-
! scope="row" | {{HMS|Squirrel|J301|3}}
| Harland & Wolff
| Turbine
| 24 July 1945 scuttled off Phuket, Thailand after mine damage
|-
! scope="row" | {{HMS|Stormcloud|J367|3}}
| Lobnitz & Co
| Reciprocating
| 1959 broken up
|-
! scope="row" | {{HMS|Sylvia|J382|3}}
| Lobnitz & Co
| Reciprocating
| 1958 broken up
|-
! scope="row" | {{HMS|Tanganyika|J383|3}}
| Lobnitz & Co
| Reciprocating
| 1963 broken up
|-
! scope="row" | {{HMS|Thisbe|J302|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Truelove|J303|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|-
! scope="row" | {{HMS|Vestal|J215|3}}
| Harland & Wolff
| Turbine
| 26 July 1945 sunk by Japanese aircraft off Phuket, Thailand
|-
! scope="row" | {{HMS|Waterwitch|J304|3}}
| Lobnitz & Co
| Reciprocating
| 1963 broken up
|-
! scope="row" | {{HMS|Wave|J385|3}}
| Lobnitz & Co
| Reciprocating
| 1962 broken up
|-
! scope="row" | {{HMS|Welcome|J386|3}}
| Lobnitz & Co
| Reciprocating
| 1962 broken up
|-
! scope="row" | {{HMS|Welfare|J356|3}}
| Redfern Construction
| Reciprocating
| 1957 broken up
|}

{| class="wikitable sortable plainrowheaders"
|+ Cancelled ''Algerine''-class ships
|-
! scope="col" | Name<ref name=Conway65/>
! scope="col" | Builder
! scope="col" | Powerplant
! scope="col" | Fate
|-
! scope="row" | ''Fireball'' (J464)
| [[Lobnitz|Lobnitz & Co]] || ?Reciprocating || Cancelled October 1944
|-
! scope="row" | ''Gabriel'' (J465)
| Lobnitz & Co || ?Reciprocating || Cancelled October 1944
|-
! scope="row" | ''Happy Return'' (J466)
| Lobnitz & Co || ?Reciprocating || Cancelled October 1944
|-
! scope="row" | ''Larne''
| [[William Simons & Co.|William Simons]] || ?Reciprocating || Cancelled March 1942
|-
! scope="row" | ''Lennox''
| William Simons || ?Reciprocating || Cancelled March 1942
|-
! scope="row" | ''Lysander''
| [[Harland and Wolff|Harland & Wolff]] || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Mariner''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Marmion''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Mary Rose''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Moon''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Nicator'' (J457)
| [[Toronto Shipbuilding Company|Toronto Shipbuilding]] || ?Reciprocating ||
|-
! scope="row" | ''Niger''
| Toronto Shipbuilding || ?Reciprocating ||
|-
! scope="row" | ''Nonpareil'' (J459)
| Toronto Shipbuilding || ?Reciprocating ||
|-
! scope="row" | ''Nox'' (J459)
| Toronto Shipbuilding || ?Reciprocating ||
|-
! scope="row" | ''Odin'' (J460)
| Toronto Shipbuilding || ?Reciprocating ||
|-
! scope="row" | ''Providence''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Regulus''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Rowena''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Seabriar''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Serene''
| Harland & Wolff || ?Turbine || Cancelled May 1943
|-
! scope="row" | ''Styx'' (J440)
| [[Collingwood Shipbuilding]] <br>(transferred from Port Arthur Shipbuilding) || ?Reciprocating ||
|}

==Post-war operators==
{| class="wikitable sortable plainrowheaders"
|+ ''Algerine''-class ships of the [[Belgian Navy]] (post-war)
|-
! scope="col" | Name
! scope="col" | Ex-
! scope="col" | Powerplant
! scope="col" | Acquired
! scope="col" | Stricken
|-
! scope="row" | [[HMS Liberty (J391)|M900 ''Adrien de Gerlache'']]
| HMS ''Liberty'' || Turbine ||  1949 || 1969
|-
! scope="row" | [[HMS Cadmus (J230)|M901 ''Georges Lecointe'' (i)]]
| HMS ''Cadmus'' || Turbine || 1950 || 1959
|-
! scope="row" | [[HMCS Wallaceburg|M901 ''Georges Lecointe'' (ii)]]
| HMCS ''Wallaceburg'' || VTE || 1959 || 1969
|-
! scope="row" | [[HMS Ready (J223)|M902 ''Jan Van Haverbeke'']]
| HMS ''Ready''|| Turbine || 1951 || 1960
|-
! scope="row" | [[HMS Fancy (J308)|M903 ''A. F. Dufour'' (i)]]
| HMS ''Fancy'' || Turbine || 1951 || 1959
|-
! scope="row" | [[HMCS Winnipeg (J337)|M903 ''A. F. Dufour'' (ii)]]
| HMCS ''Winnipeg'' || VTE || 1959 || 1966
|-
! scope="row" | [[HMS Spanker (J226)|M904 ''De Brouwer'']]
| HMS ''Spanker'' || Turbine || 1953 || 1966
|-
! scope="row" | [[HMS Rosario (J219)|M905 ''De Moor'']]
| HMS ''Rosario'' || Turbine || 1953 || 1966
|}

{| class="wikitable sortable plainrowheaders"
|+ ''Algerine''-class ships of the [[Royal Ceylon Navy]] (post-war)
|-
! scope="col" | Name
! scope="col" | Ex-
! scope="col" | Powerplant
! scope="col" | Acquired
! scope="col" | Stricken
|-
! scope="row" | {{ship|HMCyS|Vijaya}}
| HMS ''Flying Fish''  || VTE || 1949 || 1975
|-
! scope="row" | {{ship|HMCyS|Parakrama}}
| HMS ''Pickle''  || Turbine || 1959 || 1964
|}

{| class="wikitable sortable plainrowheaders"
|+ ''Algerine''-class ships of the [[South African Navy]] (post-war)
|-
! scope="col" | Name
! scope="col" | Ex-
! scope="col" | Powerplant
! scope="col" | Acquired
! scope="col" | Stricken
|-
! scope="row" | [[HMS Pelorus (J291)|HMSAS ''Pietermaritzburg'']]
| HMS ''Pelorus''  || VTE  || 1947 || 1976
|-
! scope="row" | [[HMS Rosamund (J439)|HMSAS ''Bloemfontein'']]
| HMS ''Rosamund''  || VTE || 1947 || 1967
|}

{| class="wikitable sortable plainrowheaders"
|+ ''Algerine''-class ships in post-war service in other navies
|-
! scope="col" | Name
! scope="col" | Ex-
! scope="col" | Powerplant
! scope="col" | Navy
! scope="col" | Acquired
! scope="col" | Stricken
|-
! scope="row" | [[UBS Yan Myo Aung|''Yan Myo Aung'']]
| HMS ''Mariner'' || VTE || [[Burmese Navy]] || 1958 || 1982
|-
! scope="row" | [[HMNS Nigeria|HMNS ''Nigeria'']]
| HMS ''Hare'' || Turbine || [[Nigerian Navy]] || 1959 || 1962
|-
! scope="row" | [[Italian corvette Alabarda (F 560)|''Eritrea''<br>(renamed ''Alabarda'')]]
| HMS ''Larne'' || VTE || [[Italian Navy]] || 1947 ||1981
|-
! scope="row" | [[IIS Palang (1949)|''Palang'']]
|  HMS ''Fly'' || VTE || [[Imperial Iranian Navy]] || 1949 || 1972
|-
! scope="row" | ''[[HTMS Phosampton|Phosampton]]''
| HMS ''Minstrel'' || VTE || [[Royal Thai Navy]] || 1947 || 2012
|}

==''Algerine''s sunk in action==
Five ''Algerine''s were sunk in action and four others were written off after sustaining damage.<ref name=Elliott314/>
* {{HMS|Algerine|J213|2}} was torpedoed by the {{ship|Italian submarine|Ascianghi||2|up=yes}} off [[Béjaïa|Bougie, Algeria]] on 15 November 1942.
* {{HMS|Alarm|J140|2}} was damaged beyond repair by air attack off [[Annaba|Bône, Algeria]] on 2 January 1943.
* {{HMS|Fantome|J224|2}} was mined, and damaged beyond repair, in the Mediterranean on 20 May 1943
* {{HMS|Loyalty|J217|2}} (ex-''Rattler'') was sunk by the {{ship|German submarine|U-480||2|up=yes}} in the [[English Channel]] on 22 August 1944.
* {{HMS|Hydra|J275|2}} was mined, and damaged beyond repair, off [[Ostend]] on 10 November 1944
* {{HMS|Regulus|J327|2}} was sunk by a [[naval mine|mine]] off [[Corfu]] on 12 January 1945.
* {{HMS|Prompt|J378|2}} was mined, and damaged beyond repair, off Ostend on 9 May 1945
* {{HMS|Squirrel|J301|2}} was sunk by a [[naval mine|mine]] off [[Phuket Province|Phuket]], [[Thailand]] on 24 July 1945.
* {{HMS|Vestal|J215|2}} was sunk by a Japanese [[kamikaze]] plane off [[Phuket Province|Phuket]], [[Thailand]] on 26 July 1945.

==References==
{{Reflist|30em}}

==Bibliography==
* {{cite book|title=Conway's All the World's Fighting Ships 1922–1946|editor1-last=Chesneau|editor1-first=Roger|publisher=Conway Maritime Press|location=Greenwich, UK|year=1980|isbn=0-85177-146-7}}
* {{Cite Colledge2006}}
* {{cite book |last=Elliott |first=Peter |title=Allied Escort Ships of World War II: A complete survey |year=1977 |publisher=Macdonald and Jane's|location=London |isbn=0-356-08401-9 }}
* {{cite book|last=Lenton|first=H. T.|author-link=Henry Trevor Lenton|title=British & Empire Warships of the Second World War|publisher=Naval Institute Press|location=Annapolis, Maryland|year=1998|isbn=1-55750-048-7}}

==External links==
{{Commons category|Algerine class minesweeper}}
* [http://uboat.net/allies/warships/class.html?ID=140 ''Algerine''-class] from [http://uboat.net/ uboat.net]
* [http://www.minesweepers.org.uk/ The ''Algerine'' Association]
* [http://jproc.ca/rrp/algerine.html ''Algerine''-class minesweepers - Radio Fit]
{{Algerine class minesweepers|others}}
{{WWII British ships}}

[[Category:Algerine-class minesweepers| ]]
[[Category:Mine warfare vessel classes]]
[[Category:Ship classes of the Royal Navy]]
[[Category:World War II minesweepers of the United Kingdom| ]]