List of mine warfare vessels of the United States Navy

This is a list of mine warfare vessels of the United States Navy.

Ship status is indicated as either currently active (including ready reserve), inactive or precommissioning Ships in the inactive category include only ships in the inactive reserve, ships which have been disposed from US service have no listed status. Ships in the precommissioning category include ships under construction or on order.

Overview

Mine warfare consists of: minelaying, the deployment of explosive naval mines at sea to sink enemy ships or to prevent their access to particular areas; minesweeping, the removal or detonation of naval mines; and degaussing, the process of decreasing or eliminating a remnant magnetic field in a ship's hull to prevent its detection by magnetic mines. The US Navy has operated ships and craft for all three purposes. Mine planting is the laying and maintenance of controlled mines for harbor defense, which was traditionally a role of the US Army.

Classifications

Mine warfare ships were originally considered by the US Navy to be either auxiliaries or yard and district craft, and so were given hull classification symbols beginning with either 'A' or 'Y', depending on their capabilities. The exceptions were certain large 'cruiser' minelayers which were given hull symbols beginning with 'CM', and converted destroyers which were given hull symbols beginning with 'DM'.

On 7 February 1955 all of these ships and craft still in service or reserve were reclassed and received new hull symbols beginning with 'M', usually without change of hull number. The exception was the degaussing ships, which retained the 'A' hull symbol.

Modern Littoral Combat Ships use 'L' hull symbols even though they can be used for mine warfare.

Auxiliary Minelayers (ACM)

All ACMs except USS ''Buttress'' and USS ''Monadnock'' were originally US Army mine planters.

''Chimo''-class

*
*
*
*
*
*
*
* , later ARC-5

''PCE-842''-class

* , ex-''PCE-878''

''Camanche''-class

*
*
*
*
*
*

Other

*

Degaussing Ships (ADG)

* USS ''Lodestone'' (ADG-8), ex-YDG-8
* USS ''Magnet'' (ADG-9), ex-YDG-9
* USS ''Deperm'' (ADG-10), ex-YDG-10
* USS ''Ampere'' (ADG-11), ex-YDG-11
* USS ''Surfbird'' (ADG-383), ex-MSF-383

Minesweepers (AM)

''Lapwing''-class

''Lapwing''-class

* , later AVP-1
* , later AT-137, ATO-137
* , later AT-140, ATO-140
* , wrecked Kanaga Island, Alaska 19 February 1938
* , sunk by Japanese artillery on Bataan 4 May 1942
* , wrecked off Chirikof Island, Alaska 6 June 1923
* , later AT-136, ATO-136
* , wrecked Point Mosquito Panama 15 December 1925
* , sunk in air attack, Corregidor, PI, 10 April 1942
* , later AVP-2
* , canceled 4 December 1918
* , canceled 4 December 1918
* , later AT-143, ATO-143
* , later AT-145, ATO-145
* , scuttled off Corregidor 5 May 1942
* , later AT-138, ATO-138
* , later YNG-20
* , later AVP-3
* , later AVP-4
* , later AT-131, ATO-131
* , later AT-168, ATO-168
* , later ASR-1
* , later AVP-5
* , later ARS-32
* , later AT-135, ATO-135
* , later AT-139, ATO-139
* , later AVP-6
* , later ASR-2
* , later ARS-2
* , later AT-141, ATO-141
* , later AT-142, ATO-142
* , later ARS-1
* , scuttled Guam 8 December 1941
* , later AVP-7
*
* , scuttled in Manila Bay, PI following damage from air attack 10 December 1941
* , accidentally sank while under tow Hawaii 26 June 1937
* , later ARS-3
* , later ASR-3
* , later AT-133, ATO-133
* , later AVP-8
* , canceled 4 December 1918
* , later AT-134
* , later ASR-4
* , later ASR-5
*
* , later ASR-6
* , later ARS-4
* , canceled 4 December 1918
* , canceled 4 December 1918
* , later AVP-9
* , later AT-144
* , later ARS-11
* , later ARS-12

''Raven''-class

Raven-class minesweepers

The ''Raven'' class became Minesweepers, Steel Hulled (MSF) on 7 February 1955.
*
* , sunk by mine, English Channel, 5 June 1944, 6 killed

''Auk''-class

Auk-class minesweepers

The ''Auk'' class became Minesweepers, Steel Hulled (MSF) on 7 February 1955.

*
*
*
*
*
* , later AGS-19
*
*
*
*
*
*
*
*
*
*
* , later AGS-20
* , later AGS-17
* , later AGS-18
*
*
*
*
*
*
*
*
*
*
*
*
*
*
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*
*
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*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''Bullfinch''-class

*
*

''Catbird''-class

* , later IX-183
* , later IX-170

''Albatross''-class

Albatross-class minesweepers
* , later IX-171
* , later IX-172

''Kite''-class

Kite-class minesweepers
*
* , later IX-166

''Goshawk''-class

* , ex-AMc-4, later IX-195

''Goldcrest''-class

*
*

''Adroit''-class

Adroit-class minesweepers

All ships of this class were converted to submarine chasers (PC)

* , later PC-1586
* , later PC-1587
* , later PC-1588
* , later PC-1589
* , later PC-1590
* , later PC-1591
* , later PC-1592
* , later PC-1593
* , later PC-1594
* , later PC-1595
* , later PC-1596
* , later PC-1597
* , later PC-1598
* , later PC-1599
* , later PC-1600
* , later PC-1601
* , later PC-1602
* , later PC-1603

''Hawk''-class

Hawk-class minesweepers
*
*
*

''Admirable''-class

The ''Admirable'' class became Minesweepers, Steel Hulled (MSF) on 7 February 1955.

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* AM-166 through AM-208 – canceled 9 April 1942
* AM-209 through AM-213 – canceled 10 April 1942
*
*
*
*
*
*
*
*
*
*
*
*
*
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled June 6, 1944
*
*
*
*
* – canceled June 6, 1944
* – canceled June 6, 1944
*
*
* , museum ship
*
*
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled June 6, 1944
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , sunk by mine off Wonsan, Korea, 12 October 1950, 13 missing or killed
*
* , sunk by mine off Wonsan, Korea, 10 October 1950
*
*
*
*
*
*
*
*
*
*
*
*
* – canceled December 1, 1944
* – canceled November 1, 1945
* – canceled June 6, 1944
* – canceled June 6, 1944
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* – canceled November 1, 1945
*
* – canceled November 1, 1945
*
*
*
*
*
*
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled June 6, 1944
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945
* – canceled August 11, 1945

''Algerine''-class (built for the United Kingdom)

These minesweepers were built for the U.K. and redesignated from an ''AM'' hull number to a ''J'' hull number. Most were returned to the US at the end of Lend-Lease.

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''Agile''- or ''Aggressive''-class

These classes have considerable overlap; some ships are considered both ''Agile''- and ''Agreessive''-class. A few more are occasionally considered ''Dash''-class. These classes became Minesweepers, Ocean (MSO) on 7 February 1955.

Agile-class minesweepers

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* AM-450 – to France as
* AM-451 – to France as then to Uruguay as
* AM-452 – to France as
* AM-453 – to France as
* AM-454 – to France as
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* AM-475 – to France as
* AM-476 – to France as
* AM-477 – to France as
* AM-478 – to Portugal as
* AM-479– to Portugal as
* AM-480 – to the Netherlands as
* AM-481 – to the Netherlands as
* AM-482 – to the Netherlands as
* AM-483 – to the Netherlands as
* AM-484 – to the Netherlands as
* AM-485 – to the Netherlands as
* AM-486 – to Portugal as
* AM-487 – to Portugal as
*
*
*
*
*
*
*
*
*
* AM-498 – to Norway as , then to Belgium as
* AM-499 – to Norway as , then to Belgium as
* AM-500 – to France as
* AM-501 – to France as
* AM-502 – to France as
* AM-503 – to Belgium as
* AM-504 – to Belgium as
* AM-505 – to France as
* AM-506 – to Italy as
* AM-507 – to Italy as
* AM-512 – to France as
* AM-513 – to France as
* AM-514 – to France as
* AM-515 – to Belgium as
* AM-516 – to Belgium as
* AM-517 – to Italy as
* AM-518 – to Italy as

''Accentor''- or ''Acme''-class

The ''Acme'' class became Minesweepers, Ocean (MSO) on 7 February 1955.
*
*
*
*

''Ability''-class

The ''Ability'' class became Minesweepers, Ocean (MSO) on 7 February 1955.
*
*
*

Other/unknown class

* , later IX-165
*
*
*
* , later ''Agate'' (PYc-4)
* , later ''Captor'' (PYc-40)
* – built for U.K. December 22, 1943
* AM-342 through AM-350 – hull numbers not used
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled November 1, 1945
* – canceled November 1, 1945

Auxiliary Base Minesweepers (AMb)

* USS ''Raymonde'' (AMb-17), later YP-375, IX-199"Barcelo (IX-199)"
/ref>

Coastal Minesweepers (AMc)

''Pipit''-class

*
*
*

''Goshawk''-class

* , later AM-79

''Chatterer''-class

*

''Grosbeak''-class

*

''Cros''-class

* , sunk during torpedo training session, Puget Sound, 23 August 1943

''Egret''-class

* , later IX-181

''Frigate Bird''-class

*

''Reedbird''-class

*

''Firecrest''-class

*

''Accentor''-class

Accentor-class minesweepers

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , later IX-230
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , wrecked by Typhoon Louise Okinawa October 1945
* , later IX-202
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , later IX-231
* , later IX-232
*
*
*
*

''Agile''-class

* , later IX-203

''Acme''-class

*

''Admirable''-class

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''PCS-1376''-class

The ''PCS-1376''-class of coastal minesweepers were originally Patrol Craft Sweepers (PCS) which lacked minesweeping gear. They were built on 134-foot hulls and then converted back into minesweepers.
* , ex-''PCS-1466''
* , ex-''PCS-1465'', later AMCU-14

Other/unknown classes

Many coastal minesweepers were civilian ships purchased by the US Navy and then converted for use as minesweeper ships. Among them are various designs and makes of yachts, fishing vessels, and other ships.

* , later IX-175
*
*
*
*
*
*
*
*
*
*
*
*
* , later IX-194
* , later IX-180
*
*
*
*
*
* , later YN-53
*
*
*
* , later IX-176
*
*
*
*
*
*
*
*
*
*
* , ex-YP-150, later IX-177
*
*
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*
* AMc-202, later YP-389

Coastal Minesweepers (Underwater Locator) (AMCU)

On 7 February 1955, all AMCU's were redesignated as Coastal Minehunters (MHC). Hull numbers were not changed.

''AMCU-7''-class

All AMCU-7 class minesweepers were conversions of Landing Craft Infantry.

* , ex-''LCI-589''
* , ex-''LCI-400''
* , ex-''LCI-409''
* , ex-''LCI-513''
* , ex-''LCI-514''
* , ex-''LCI-652'', conversion canceled
* , ex-''LCI-653''
* USS ''Blue Jay'' (AMCU-17), ex-''LCI-654'', not commissioned
* USS ''Chaffinch'' (AMCU-18), ex-''LCI-694'', not commissioned
* USS ''Chewink'' (AMCU-19), ex-''LCI-701'', not commissioned
* USS ''Chimango'' (AMCU-20), ex-''LCI-703'', not commissioned
* , ex-''LCI-709''
* USS ''Cotinga'' (AMCU-22), ex-''LCI-776'', not commissioned
* USS ''Dunlin'' (AMCU-23), ex-''LCI-777'', conversion canceled
* , ex-''LCI-869''
* , ex-''LCI-870''
* , ex-''LCI-874''
* USS ''Killdeer'' (AMCU-27), ex-''LCI-883'', conversion canceled
* , ex-''LCI-884''
* USS ''Magpie'' (AMCU-29), ex-''LCI-944'', not commissioned
* , ex-''LCI-963'', not commissioned
* USS ''Medrick'' (AMCU-31), ex-''LCI-966'', conversion canceled
* USS ''Minivet'' (AMCU-32), ex-''LCI-969'', conversion canceled
* , ex-''LCI-973''
* , ex-''LCI-976''
* , ex-''LCI-982''
* , ex-''LCI-1001'', conversion canceled
* , ex-''LCI-1022''
* , ex-''LCI-1008''
* , ex-''LCI-1052'', not commissioned
* USS ''Shearwater'' (AMCU-40), ex-''LCI-882'', conversion canceled
* , ex-''LCI-1093''
* , ex-''LCI-1098''

''YMS-1''-class

* , ex-YMS-242, AGS-12, AGSC-12
* , ex-YMS-262, AGS-13, AGSC-13
* , ex-YMS-324, AMS-16
* , ex-YMS-417, AMS-26
* , ex-YMS-443, AMS-34
* , ex-PCS-1393, YMS-446, AMS-35
* , ex-PCS-1456, YMS-479, AMS-39

''PCS-1376''-class

* , ex-''PCS-1465'', AMc-204

Other/unknown classes

*
*
*
*
*
*
*

Ocean Minesweepers (AMS)

''YMS-1''-class

* , ex-''YMS-80'', later EMSC(O)-1
* , ex-''YMS-164'', later MHC-44
* , ex-''YMS-170'', later MHC-45
* , ex-''YMS-179'', later MSC(O)-4
* , ex-''YMS-192'', later MSC(O)-5
* , ex-''YMS-201'', later MSC(O)-6
* , ex-''YMS-215''
* , ex-''YMS-218'', later MSC(O)-8
* , ex-''YMS-219'', later MSC(O)-9
* , ex-''YMS-231'', later MSC(O)-10
* , ex-''YMS-238'', later MSC(O)-11
* , ex-''YMS-306'', later MSO(O)-12
* , ex-''YMS-312'', later MSC(O)-13
* , ex-''YMS-317''
* , ex-''YMS-321'', later MSC(O)-15
* , ex-''YMS-324'', later AMCU-46
* , ex-''YMS-362'', later MSC(O)-17
* , ex-''YMS-369'', later MSC(O)-18
* , ex-''YMS-371'', later MSC(O)-19
* , ex-''YMS-372'', later MSC(O)-20
* , ex-''YMS-373''
* , ex-''YMS-374'', later MSC(O)-22
* , ex-''YMS-376'', later MSC(O)-23
* , ex-''YMS-395'', later MSC(O)-24
* , ex-''YMS-400'', sunk by mine off Chusan Po, Korea, 1 Oct 1950, 21 killed
* , ex-''YMS-417'', later AMCU-47
* , ex-''YMS-419'', later MSC(O)-27
* , ex-''YMS-422'', later MSC(O)-28
* , ex-''YMS-430'', later MSC(O)-29
* , ex-''YMS–434'', grounded 30 Mar 1949
* , ex-''YMS-437'', sunk by mine in Wonsan harbor, Korea, 2 Feb 1951, 8 killed
* , ex-''YMS-441'', later MSC(O)-32
* , ex-''YMS-442'', later MSC(O)-33
* , ex-''YMS-443'', later AMCU-48
* , ex-''YMS-446'', later AMCU-49
* , ex-''YMS-461'', later MSC(O)-36
* , ex-''YMS-470'', later MSC(O)-37
* , ex-''YMS-471'', later MSC(O)-38
* , ex-''YMS-479'', later AMCU-50
* , ex-''YMS-415'', later MSC(O)-40
* , ex-''YMS-45'', later MSC(O)-41
* , ex-''YMS-109'', later MSC(O)-42
* , ex-''YMS-113'', later MSC(O)-43
* , ex-''YMS-114'', later MSC(O)-44
* , ex-''YMS-120'', later MSC(O)-45
* , ex-''YMS-136'', later MSC(O)-46
* , ex-''YMS-193'', later MSC(O)-47
* , ex-''YMS-268'', later MSC(O)-48
* , ex-''YMS-271'', later MSC(O)-49
* , ex-''YMS-290'', later MSC(O)-50
* , ex-''YMS-291'', later MSC(O)-51
* , ex-''YMS-299'', later MSC(O)-52
* , ex-''YMS-311'', later MSC(O)-53
* , ex-''YMS-327'', later MSC(O)-54
* , ex-''YMS-402'', later MCS(O)-55
* , ex-''YMS-444'', later MSC(O)-56
* , ex-''YMS-294'', later MSC(O)-57
* , ex-''YMS-425'', later MSC(O)-58

''Adjutant''- or ''Bluebird''-class

The name of this class of ships internationally is ''Adjutant'', named for the , which was cancelled and transferred to Portugal as the ''Ponta Delgada'' (M 405). The first commissioned ship of this class in the US Navy was the , hence its US Navy class name. This class became Minesweepers, Coastal (MSC) on 7 February 1955.

* (transferred to Portugal)
* (transferred to France)
* (transferred to France)
* (transferred to Italy)
* (transferred to Belgium)
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''Albatross''-class

The ''Albatross'' class became Minesweepers, Coastal (MSC) on 7 February 1955.
*
*

Other/unknown classes

*
*
*
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British Minesweepers (BAM)

''For more vessels of this class see Catherine class minesweeper''

*
*
*
*

Minelayers (CM)

* , ex-C-3Belknap, Reginald Rowan ''The Yankee mining squadron; or, Laying the North Sea mining barrage'' (1920) United States Naval Institute p.110
* , ex-C-5, later ''Tahoe'', ''Yosemite''

''Aroostook''-class

* , ex-ID-1256, later AK-44
* , ex-ID-1255, later ARG-1

''Catskill''-class

* ,Silverstone, Paul H. ''U.S. Warships of World War II'' (1968) Doubleday pp. 205–209 later MM-5, MMF-5
* , later LSV-1, MCS-1
* , later LSV-2, MCS-2

Other/unknown classes and unique ships

* , ex-AN-5, later AKN-4
*
* , ex-CMc-5, sunk by mine off Le Harve, France on 25 September 1944, 58 killed
*
* , wrecked by Typhoon Louise Okinawa October 1945

Coastal Minelayers (CMc)

* , later PY-13
* , later PG-52
*
*
* , later CM-10
* , later AN-5, CM-8

Light Minelayers (DM)

''Wickes''-class

These ships were originally designated as ''Wickes''-class destroyers and later reclassified to light minelayers around 1920.

*
*
*
*
*
*
*
*
*
*
*
*
*
*
* Silverstone, Paul H. ''U.S. Warships of World War II'' (1968) Doubleday p.212
*
*
*

''Clemson''-class

These ships were originally designated ''Clemson''-class destroyers and later reclassified as light minelayers in 1937.

*
*
*
*

''Robert H. Smith''-class

These ships were originally designated ''Allen M. Sumner''-class destroyers but were converted to ''Robert H. Smith''-class destroyer minelayers in 1944. In 1955 they would be reclassified as Fast Minelayers (MMD).

*
*
*
*
*
*
*
*
*
*
*
*

High Speed/Destroyer Minesweepers (DMS)

''Wickes''-class

* , wrecked by Typhoon Louise Okinawa October 1945
*
*
*
*
*
*
*
*

''Clemson''-class

*
* , wrecked by Typhoon Louise Okinawa October 1945
*
*
*
*
*
*
*

''Gleaves''-class

*
*
*
*
*
*
*
* , sunk in collision 26 April 1952, 176 killed
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* – not converted to DMS

Converted steamships and freighters (ID)

Eight steamships and freighters were used for laying the North Sea Mine Barrage during World War I.

* , later CM-3, AK-44
* , later CM-4, ARG-1
*
*
*
*
*
*

Mine Countermeasures Ships (MCM)

''Avenger''-class

* * * *
* , wrecked 17 January 2013 Tubbataha Reef Philippines
* *
* * * * *
* *

Mine Countermeasures Support Ships (MCS)

Many Mine Countermeasures Support (MCS) ships were previous vehicle landing, tank landing, dock landing, or amphibious assault ships that were reclassified to the MCS type in later years.

''Catskill''-class

* , ex-LSV-1
* , ex-LSV-2

''Osage''-class

* , ex-LSV-3, MCS conversion canceled
* , ex-LSV-4, MCS conversion canceled
* , ex-LSV-5, MCS conversion canceled

''LST-542''-class

* , ex-LST-1069

''Ashland''-class

* , ex-LSD-4

''Iwo Jima''-class

* , ex-LPH-12

Coastal Minehunters (MHC)

On 7 February 1955, all Coastal Minesweepers (Underwater Locator) (AMCU)s were redesignated as MHCs. Hull numbers were not changed. ''Bobolink'', ''Bunting'', and the ''Osprey'' class never had AMCU designations.

''LCI(L)-351''-class

aka AMCU-7 class

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''YMS-1''-class

*
*
*
*
*
*
*
*
*

''PCS-1376''-class

*

Other/unknown classes

*
*

''Osprey''-class

''Osprey''-class

*
*
*
*
*
*
*
*
*
*
*
*

Coastal Minelayers (MMC)

''Auk''-class

* , ex-MSF-117
* , ex-MSF-119
* , ex-MSF-323
*
* , ex-MSF-112

LSM-1 class

At least 9 Landing Ship Mediums were converted into coastal minelayers for transfer to NATO allies.

* , ex-''LSM-301''
* , ex-''LSM-303''
* , ex-''LSM-390''
* , ex-''LSM-392''
* , ex-''LSM-481''
* , ex-''LSM-484''
* , ex-''LSM-490''
* , ex-''LSM-492''
* , ex-''LSM-493''

unknown class

*
*

Fast Minelayers (MMD)

Fast Minelayers (MMD) were originally classed as Light Minelayers (DM), but were redesignated in 1955. Hull numbers were not changed."MMD : MINELAYER, FAST".
/ref>

''Robert H. Smith''-class

*
*
*
*
*
*
*
*
*
*
*

Fleet Minelayers (MMF)

''Catskill''-class

* , ex-CM-5, ex-MM-5

Minesweepers, Coastal (MSC)

All ''Albatross'' and ''Bluebird'' class MSC vessels were originally classed as AMS Ocean Minesweepers prior to 7 February 1955. Hull numbers were not changed.

''Bluebird''-class

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''MSC-218''-class

*
*

''Albatross''-class

*
*

Unknown/other class

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
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*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

Minesweepers, Coastal (Old) (MSC(O))

All Ocean Minesweepers (AMS) which were originally ''YMS-1''-class minesweepers and still on hand on 7 February 1955 were redesignated as Minesweepers, Coastal (Old) (MSC(O)). Hull numbers were not changed.

''YMS-1''-class

*
*
*
*
*
*
*
*
*
*
*
*
* , grounded 12 September 1963, CTL
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

Minesweepers, Steel Hulled (MSF)

All MSF vessels were originally classed as AM minesweepers prior to 7 February 1955. Hull numbers were not changed.

''Raven''-class

*

''Auk''-class

*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , later MMC-5
*
*
* , later MMC-1
*
* , later MMC-2
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , later MMC-3
*
*
*
*
* , later AG-176
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

''Admirable''-class

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , later IX-305
*
*
*
*
*
* , later to US Army intelligence as USAS ''Report'' (AGP-289)
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

Inshore Minesweepers (MSI)

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
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*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

Minesweepers, Ocean (MSO)

All MSO vessels were originally classed as AM minesweepers prior to 7 February 1955. Hull numbers were not changed.

''Agile''- or ''Aggressive''-class

Ships of this class are variously called ''Agile''- or ''Aggressive''-class depending on source. Some four ships are also sometimes named as a part of a distinct ''Dash''-subclass.

*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , lost by fire off Guam, 24 April 1973, no deaths
*
*
*
*
* MSO-450 (built for France as the ''Berneval'' (M 613))
* MSO-451 (built for France as the ''Bir Hakeim'' (M 614))
* MSO-452 (built for France as the ''Garigliano'' (M 617))
* MSO-453 (built for France as the ''Alençon'' (M 612))
* MSO-454 (built for France as the ''Dompaire'' (M 616))
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* MSO-475 (built for France as the ''My Tho'' (M 618))
* MSO-476 (built for France as the ''Can Tho'' (M 615))
* MSO-477 (built for France as the ''Vinh Long'' (M 619))
* MSO-478 (built for Portugal as the ''São Jorge'' (M 415))
* MSO-479 (built for Portugal as the ''Pico'' (M 416))
* MSO-480 (built for the Netherlands as the ''Onversaagd'' (M 884))
* MSO-481 (built for the Netherlands as the ''Onbevreesd'' (M 885))
* MSO-482 (built for the Netherlands as the ''Onvervaard'' (M 888))
* MSO-483 (built for the Netherlands as the ''Onverschrokken'' (M 886))
* MSO-484 (built for the Netherlands as the ''Onvermoeid'' (M 887))
* MSO-485 (built for the Netherlands as the ''Onverdroten'' (M 889))
* MSO-486 (built for Portugal as the ''Graciosa'' (M 417))
* MSO-487 (built for Portugal as the ''Corvo'' (M 418))
*
*
*
*
*
* , burned, capsized and sank 25 June 1966, San Juan PR, no deaths, CTL
*
*
*
* MSO-497 (cancelled)
* MSO-498 (built for Norway as the ''Lågen'' (M 950))
* MSO-499 (built for Norway as the ''Namsen'' (M 951))
* MSO-500 (built for France as the ''Berlaimont'' (M 620))
* MSO-501 (built for France as the ''Origny'' (M 621))
* MSO-502 (built for France as the ''Autun'' (M 622))
* MSO-503 (built for Belgium as the ''Artevelde'' (M 907))
* MSO-504 (built for Belgium as the ''Artevelde'' (M 906))
* MSO-505 (built for France as the ''Baccarat'' (M 623))
* MSO-506 (built for Italy as the ''Storione'' (M 5431))
* MSO-507 (built for Italy as the ''Salmone'' (M 5430))
* MSO-512 (built for France as the ''Narvik'' (M 609))
* MSO-513 (built for France as the ''Ouistreham'' (M 610))
* MSO-514 (built for France as the ''Colmar'' (M 610))
* MSO-515 (built for Belgium as the ''Georges Truffaut'' (M 908))
* MSO-516 (built for Belgium as the ''F. Bovesse'' (M 909))
* MSO-517 (built for Italy as the ''Sgombro'' (M 5432))
* MSO-518 (built for Italy as the ''Squalo'' (M 5433))

''Acme''-class

*
*
*
*

''Ability''-class

*
* , later AG-520
* , later AG-521
* MSO-522 (built for Belgium as the ''Van Haverbeke'' (M 902))
* MSO-523 to MSO-538 were planned but never built.

Minesweepers (Special Device) (MSS)

Note that the official classification of these as ''devices'' rather than ''ships'' accounts for these ships absence of listings among the Navy's ships while designated MSS-1 and MSS-2.

* MSS-1 (formerly, the ''Harry L. Glucksman'')
*

Submarine Minelayers (SM)

* USS ''Argonaut'' (SM-1), later APS-1, sunk by Japanese destroyers off Rabaul on 10 January 1943

Degaussing Craft (YDG)

*YDG-1
*YDG-2
*YDG-3
*YDG-4, lost off New Caledonia, 1 October 1943
*YDG-5
*YDG-6, ex-YMS-344
*YDG-7, ex-YMS-480
*YDG-8, ex-PCE-876, later ADG-8
*YDG-9, ex-PCE-879, later ADG-9
*YDG-10, ex-PCE-883, later ADG-10
*YDG-11, ex-PCE-919, AM-359, later ADG-11

Motor Mineplanters (YMP)

Mineplanters were used to plant and maintain controlled mines for harbor defense; since the US Army had the primary responsibility for these minefields it is likely that the YMP hull designation was seldom used.

Auxiliary Motor Mine Sweepers (YMS)

All Auxiliary Motor Mine Sweeper (YMS) ships to date are ''YMS-1''-class, which itself has multiple subclasses.

''YMS-1''-subclass

*
*
*
*
*
*
*
*
*
*
*
*
*
* , sunk in collision, Boston Harbor, 11 Jan 1945
*
*
*
*
* , sunk by mine, Angaur, Palau Islands, 24 September 1944
*
* , sunk by mine, Toulon, France, 1 September 1944
*
*
* , sunk by mine, St. Tropez, France, 16 August 1944
*
*
*
*
*
* , sunk by mine, Anzio, Italy, 25 January 1944
*
*
*
*
*
*
*
*
* , sunk by mine, Balikpapan, Borneo, 26 June 1945
*
*
*
*
*
* , later AMS-41
*
*
* , sunk by Japanese artillery on Corregidor 14 February 1945
*
* , sunk by mine, Balikpapan, Borneo, 18 June 1945
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* , lost in storm off Leyte, Philippines, 17 October 1944
* , sunk by a mine off Borneo, 3 April 1945
*
*
*
*
*
*
*
*
* , later AMS-1
*
*
*
* , sunk by mine, Balikpapan, Borneo, 9 July 1945
*
*
*
*
*
*
*
*
*
*
*
*
*
* , lost in Typhoon Ida 16 September 1945
*
*
*
*
* , damaged by mine Okinawa, 8 April 1945, CTL, 5 killed
*
*
*
*
*
* , later AMS-42
*
*
*
* , later AMS-43
* , later AMS-44
*
*
*
*
*
* , later AMS-45
*
*
*
*
*
*
*
*
*
*
*
*
* , foundered 20 February 1943 off Coos Bay, OR
*

''YMS-135''-subclass

*
* , later AMS-46
* (transferred to UK)
*
*
*
* (transferred to UK)
* (transferred to UK)
*
*
*
* , lost in Typhoon Louise, Okinawa, 9 October 1945
*
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
*
*
* (transferred to UK)
* (transferred to UK)
*
* , later AMS-2
*
*
* (transferred to UK)
* (transferred to UK)
*
* , later AMS-3
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
*
*
* , later AMS-4
*
* (transferred to UK)
* (transferred to UK)
*
*
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* , later AMS-5
* , later AMS-47
* (transferred to UK)
*
*
*
*
*
*
* , later AMS-6
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
*
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* , later AMS-7
*
* (transferred to UK)
* , later AMS-8
* , later AMS-9
*
* (transferred to UK)
*
* (transferred to UK)
*
* (transferred to UK)
*
*
*
* (transferred to UK)
* (transferred to UK)
* , later AMS-10
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
* (transferred to UK)
*
* , later AMS-11
*
* (transferred to UK)
*
* , later AGS-12, AGSC-12, AMCU-12
*
* (transferred to UK)
*
* (transferred to UK)
*
*
*
*
*
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
*
* (transferred to UK)
* , later AGS-13, AGSC-13, AMCU-13
* , later AGS-14, AGSC-14
*
*
*
*
* , later AMS-48
*
*
* , later AMS-49
*
*
*
* , lost in Typhoon Louise, Okinawa, 9 October 1945
*
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
* (transferred to UK)
*
* (transferred to UK)
*
* (transferred to UK)
*
*
*
*
*
* , later AMS-50
* , later AMS-51
*
*
* , later AMS-57
*
*
*
*
* , later AMS-52
*
*
*
*
* , sunk by mine Normandy, 30 July 1944, 8 killed
*
* , later AMS-12
*
*
*
*
* , later AMS-53
* , later AMS-13
*
*
*
*
* , later AMS-14
*
*
*
* , later AMS-15
*
*
* , later AMS-16, AMCU-46
*
*
* , later AMS-54
*
*
*
*
*
*
*
*
*
*
*
*
*
* , lost in Typhoon Ida, 16 September 1945
*
*
* , later YDG-6
*
*
*
*
*
* , sunk by mine, Normandy, 2 July 1944
*
*
*
*
*
*
*
*
*
*
*
* , later AMS-17
*
*
* , sunk by mine Balikpapan, Borneo, 26 June 1945, no deaths
*
*
*
* , later AMS-18
*
* , later AMS-19
* , later AMS-20
* , later AMS-21
* , later AMS-22
*
* , later AMS-23
*
* , damaged by mine, Normandy, 30 July 1944, CTL
*
*
*
*
* , lost in Typhoon Louise, Okinawa, 9 October 1945
*
* , sunk by mine, Ulithi, 1 October 1944
*
*
*
*
*
*
*
*
*
* , later AMS-24
*
*
*
*
* , later AMS-25
*
* , later AMS-55
*
*
*
*
*
*
* , lost 12 Sep 1944 in the 1944 Great Atlantic Hurricane, all 33 crew died
*
*
*
*
*
* , later AMS-40
*
* , later AMS-26, AMCU-47
*
* , later AMS-27
*
* , lost in Typhoon Ida, 15 September 1945
* , later AMS-28
*
* , grounded by Typhoon Louise, Okinawa, 9 October 1945, CTL
* , later AMS-58
*
*
*
*
* , later AMS-29
*
*
*
* , later AMS-30
*
*
* , later AMS-31
*
*
*
* , later AMS-32
* , later AMS-33
* , later AMS-34, AMCU-48
* , later AMS-56
*
* , later YDG-7
* , sunk by shore batteries off Tarakan, Borneo, 2 May 1945
* ''YMS-482'' through ''YMS-500'' were planned but cancelled.

''YMS-446''-subclass

* , ex-PCS-1393, later AMS-35, AMCU-49
* , ex-PCS-1394
* , ex-PCS-1395
* , ex-PCS-1398
* , ex-PCS-1399
* , ex-PCS-1400
* , ex-PCS-1401
* , ex-PCS-1406
* , ex-PCS-1407, grounded by Typhoon Louise, Okinawa, 9 October 1945, CTL
* , ex-PCS-1408
* , ex-PCS-1409
* , ex-PCS-1410
* , ex-PCS-1411
* , ex-PCS-1412
* , ex-PCS-1415
* , ex-PCS-1416, later AMS-36
* , ex-PC-1427, PCS-1427
* , ex-PCS-1428
* , ex-PCS-1432
* , ex-PCS-1433
* , ex-PCS-1434
* , ex-PCS-1435
* , ex-PCS-1436
* , ex-PCS-1437
* , ex-PCS-1438, later AMS-37
* , ex-PCS-1439, later AMS-38
* , ex-PCS-1440, lost in Typhoon Ida, 16 September 1945
* , ex-PCS-1443
* , ex-PCS-1444
* , ex-PCS-1447
* , ex-PCS-1448
* , ex-PCS-1453
* , ex-PCS-1454, broached and capsized by Typhoon Ida, 16 September 1945 at Wakanoura Wan, Japan, CTL
* , ex-PCS-1456, later AMS-39, AMCU-50

Littoral Combat Ships (LCS)

The Littoral Combat Ships can carry Mine Warfare Modules which operate unmanned vehicles of various types for mine clearance operations.

''Freedom''-class

* * * * * * * * * * * * * * * *

''Independence''-class

* * ref name=USNI_20220914>
* * * * * * * * * * * * * * * * *

See also

* Commander Mine Squadron SEVEN
* List of current ships of the United States Navy
* List of US Navy ships sunk or damaged in action during World War II § Mine warfare vessels
* List of ships of the United States Army § Mine Planters

References

Citations

Sources

*
*

External links

Museum ships
* USS Hazard (AM-240) - Freedom Park, Omaha, NE

USS Lucid (AM-458)
- Stockton Maritime Museum, Stockton, CA

MSO-483
- Stichting Maritiem Erfgoed Vlissingen, Netherlands

{{WWII US ships

Mine Warfare vessels
USN