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fighting ships of the world

UNITED STATES NAVY (UNITED STATES OF AMERICA)

MINE WARFARE SHIPS

"YMS" minesweepers

YMS135 1944

No Name Builder Laid down Launched Comm Fate
YMS1   Henry B. Nevins, New York 3/1941 10/1/1942 3/1942 stricken 4/1946
YMS2   Henry B. Nevins, New York 3/1941 28/1/1942 4/1942 stricken 2/1947
YMS3   Henry B. Nevins, New York 3/1941 13/4/1942 4/1942 to France 10/1944 (D334 Heliotrope)
YMS4   Henry B. Nevins, New York 8/1941 14/3/1942 5/1942 stricken 6/1946
YMS5   Henry B. Nevins, New York 8/1941 13/4/1942 4/1942 stricken 4/1946
YMS6   Henry B. Nevins, New York 8/1941 19/5/1942 6/1942 stricken 6/1946
YMS7   Henry B. Nevins, New York 10/1941 11/5/1942 6/1942 stricken 6/1947
YMS8   Henry B. Nevins, New York 1/1942 2/6/1942 6/1942 stricken 6/1946
YMS9   Henry B. Nevins, New York 2/1942 15/6/1942 7/1942 stricken 6/1946
YMS10   Henry B. Nevins, New York 3/1942 30/6/1942 7/1942 stricken 6/1946
YMS11   Henry B. Nevins, New York 4/1942 20/7/1942 8/1942 stricken 6/1946
YMS12   Rice Bros, E. Boothbay 4/1941 14/3/1942 7/1942 stricken 4/1946
YMS13   Rice Bros, E. Boothbay 4/1941 2/5/1942 8/1942 to France 10/1944 (D317 Basilic)
YMS14   Rice Bros, E. Boothbay 7/1941 13/6/1942 10/1942 collision 11/1/1945
YMS15   Rice Bros, E. Boothbay 7/1941 16/7/1942 12/1942 to France 10/1944 (D338 Myosotis)
YMS16   Rice Bros, E. Boothbay 3/1942 7/9/1942 2/1943 to France 10/1944 (D322 Capucine)
YMS17   Rice Bros, E. Boothbay 5/1942 24/10/1942 4/1943 stricken 6/1946
YMS18   Herreshoff, Bristol 6/1941 8/12/1941 5/1942 to France 10/1944 (D332 Glycine)
YMS19   Herreshoff, Bristol 6/1941 27/12/1941 6/1942 sunk 24/9/1944
YMS20   Greenport Basin 6/1941 1/11/1941 4/1942 to France 10/1944 (D327 Gentiane)
YMS21   Greenport Basin 6/1941 25/11/1941 4/1942 sunk 1/9/1944
YMS22   Greenport Basin 7/1941 31/12/1941 5/1942 stricken 7/1946
YMS23   Greenport Basin 7/1941 13/12/1941 5/1942 to France 3/1944 (D201 Perce Neige)
YMS24   Greenport Basin 11/1941 10/1/1942 5/1942 sunk 16/8/1944
YMS25   Greenport Basin 11/1941 28/1/1942 6/1942 stricken 7/1947
YMS26   Greenport Basin 12/1941 28/2/1942 6/1942 to France 3/1944 (D211 Pimpernelle)
YMS27   Greenport Basin 12/1941 7/3/1942 6/1942 to France 10/1944 (D333 Hortensia)
YMS28   Greenport Basin 1/1942 31/3/1942 7/1942 to France 10/1944 (D315 Auberpine)
YMS29   Greenport Basin 1/1942 11/4/1942 7/1942 to France 10/1944 (D335 Jasmin)
YMS30   Greenport Basin 1942 1942 8/1942 sunk 25/1/1944
YMS31   Greenport Basin 3/1942 23/5/1942 8/1942 to France 3/1944 (D212 Primevere)
YMS32   Hiltebrant, Kingston 5/1941 1/10/1941 5/1942 stricken 6/1946
YMS33   Hiltebrant, Kingston 5/1941 8/10/1941 6/1942 to Soviet Union 8/1945 (T-603)
YMS34   Hiltebrant, Kingston 5/1941 21/10/1941 6/1942 to France 10/1944 (D311 Anemone)
YMS35   Hiltebrant, Kingston 5/1941 7/11/1941 7/1942 stricken 7/1947
YMS36   Hiltebrant, Kingston 10/1941 21/1/1942 7/1942 to France 10/1944 (D321 Campanule)
YMS37   Hiltebrant, Kingston 10/1941 28/1/1942 8/1942 to France 10/1944 (D316 Balsamine)
YMS38, 8/1945- YMS(C)38   Hiltebrant, Kingston 5/1941 24/1/1942 4/1942 to Soviet Union 7/1945 (T-593)
YMS39   Robert Jacob, New York 5/1941 23/12/1941 3/1942 sunk 26/6/1945
YMS40   Robert Jacob, New York 6/1941 14/3/1942 4/1942 stricken 5/1946
YMS41   Robert Jacob, New York 6/1941 14/4/1942 5/1942 stricken 6/1946
YMS42   Wheeler, Brooklyn 6/1941 17/3/1942 4/1942 to Soviet Union 7/1945 (T-592)
YMS43   Wheeler, Brooklyn 6/1941 30/3/1942 5/1942 to France 10/1944 (D324 Lotus)
YMS44   Wheeler, Brooklyn 6/1941 10/4/1942 5/1942 stricken 6/1946
YMS45, 9/1947- AMS41, 2/1955- MSC(O)41 9/1947- Barbet Wheeler, Brooklyn 6/1941 20/4/1942 6/1942 stricken 1957?
YMS46   Wheeler, Brooklyn 6/1941 30/4/1942 6/1942 stricken 6/1947
YMS47   Wheeler, Brooklyn 6/1941 7/5/1942 7/1942 stricken 10/1945
YMS48   Wheeler, Brooklyn 6/1941 15/5/1942 7/1942 sunk 14/2/1945
YMS49   Wheeler, Brooklyn 6/1941 22/5/1942 7/1942 stricken 7/1946
YMS50   Wheeler, Brooklyn 7/1941 6/6/1942 8/1942 sunk 18/6/1945
YMS51   Wheeler, Brooklyn 7/1941 22/6/1942 8/1942 stricken 6/1947
YMS52   Wheeler, Brooklyn 8/1941 15/6/1942 8/1942 stricken 6/1946
YMS53   Wheeler, Brooklyn 8/1941 24/7/1942 8/1942 stricken 7/1946
YMS54   Gibbs Gas Engine, Jacksonville 5/1941 1/11/1941 2/1942 stricken 6/1946
YMS55   Gibbs Gas Engine, Jacksonville 5/1941 22/11/1941 3/1942 to France 9/1944 (D331 Geranium)
YMS56   Gibbs Gas Engine, Jacksonville 5/1941 6/12/1941 3/1942 stricken 1946
YMS57   Gibbs Gas Engine, Jacksonville 6/1941 15/12/1941 3/1942 stricken 6/1946
YMS58   Gibbs Gas Engine, Jacksonville 6/1941 22/12/1941 4/1942 to France 10/1944 (D313 Armoise)
YMS59   Gibbs Gas Engine, Jacksonville 7/1941 30/12/1941 4/1942 to Soviet Union 6/1945 (T-521)
YMS60   Gibbs Gas Engine, Jacksonville 9/1941 19/1/1942 5/1942 stricken 6/1947
YMS61   Gibbs Gas Engine, Jacksonville 9/1941 3/2/1942 6/1942 stricken 6/1946
YMS62   Gibbs Gas Engine, Jacksonville 11/1941 25/2/1942 5/1942 to France 10/1944 (D323 Clematite)
YMS63   Gibbs Gas Engine, Jacksonville 11/1941 6/3/1942 6/1942 to France10/1944 (D312 Tiare)
YMS64   Gibbs Gas Engine, Jacksonville 1/1942 25/3/1942 6/1942 to France 10/1944 (D336 Jonquille)
YMS65   Gibbs Gas Engine, Jacksonville 1/1942 30/3/1942 7/1942 stricken 6/1947
YMS66   Weaver, Orange 7/1941 30/9/1941 6/1942 stricken 5/1946
YMS67   Weaver, Orange 7/1941 17/2/1942 7/1942 stricken 7/1946
YMS68   Weaver, Orange 7/1941 24/2/1942 8/1942 stricken 7/1946
YMS69   Weaver, Orange 7/1941 5/3/1942 8/1942 to France 9/1944 (D337 Marjolaine)
YMS70   Weaver, Orange 7/1941 12/3/1942 9/1942 wrecked 17/10/1944
YMS71   Weaver, Orange 7/1941 26/3/1942 9/1942 sunk 3/4/1945
YMS72   Weaver, Orange 7/1941 9/4/1942 1/1943 stricken 3/1946
YMS73   Weaver, Orange 7/1941 23/4/1942 1/1943 stricken 6/1947
YMS74   Weaver, Orange 7/1941 30/4/1942 2/1943 stricken 6/1946
YMS75   Weaver, Orange 7/1941 26/5/1942 2/1943 to Soviet Union 7/1945 (T-590)
YMS76   Stadium, Cleveland 4/1941 8/11/1941 6/1942 stricken 5/1946
YMS77   Stadium, Cleveland 5/1941 11/10/1941 5/1942 to France 3/1944 (D202)
YMS78   Stadium, Cleveland 5/1941 11/12/1941 6/1942 to France 10/1944 (D318 Belledone)
YMS79   Stadium, Cleveland 6/1941 27/12/1941 6/1942 stricken 2/1948, to Turkey (Kas)
YMS80, 2/1947- AMS1, 2/1955- EAMS1, 2/1955- EMSC(O)1 2/1947- Albatross Stadium, Cleveland 6/1941 5/5/1942 7/1942 experimental minesweeper 2/1955, stricken 3/1958
YMS81   Stadium, Cleveland 7/1941 30/5/1942 7/1942 stricken 6/1947
YMS82   Stadium, Cleveland 10/1941 13/6/1942 8/1942 to France 10/1944 (D325 Dahlia)
YMS83   Stadium, Cleveland 10/1941 27/6/1942 8/1942 to France 10/1944 (D326 Digitale)
YMS84   Henry C. Grebe, Chicago 6/1941 3/3/1942 5/1942 sunk 9/7/1945
YMS85   Henry C. Grebe, Chicago 6/1941 19/3/1942 6/1942 to Soviet Union 8/1945 (T-604)
YMS86   Al Larson, Terminal I 6/1941 31/1/1942 5/1942 stricken 4/1946
YMS87   Al Larson, Terminal I 7/1941 31/3/1942 8/1942 stricken 4/1946
YMS88   South Coast, Newport Beach 6/1941 18/10/1941 5/1942 to Soviet Union 8/1945 (T-608)
YMS89   South Coast, Newport Beach 7/1941 22/11/1941 6/1942 stricken 5/1946
YMS90   South Coast, Newport Beach 7/1941 19/12/1941 7/1942 wrecked 9/10/1945, never repaired
YMS91   South Coast, Newport Beach 10/1941 7/3/1942 8/1942 sold 1948
YMS92   South Coast, Newport Beach 11/1941 14/5/1942 9/1942 stricken 10/1945
YMS93   South Coast, Newport Beach 12/1941 16/5/1942 10/1942 sold 2/1947
YMS94   Colberg, Stockton 6/1941 15/12/1941 3/1942 stricken 6/1947
YMS95   Colberg, Stockton 6/1941 16/12/1941 3/1942 stricken 6/1946
YMS96   Colberg, Stockton 6/1941 20/2/1942 4/1942 stricken 1/1946
YMS97   Colberg, Stockton 6/1941 16/2/1942 4/1942 stricken 2/1947
YMS98   Colberg, Stockton 6/1941 31/12/1941 4/1942 wrecked 16/9/1945
YMS99   Colberg, Stockton 6/1941 11/3/1942 4/1942 stricken 1/1946
YMS100   Astoria Marine 7/1941 12/4/1942 6/1942 to Soviet Union 8/1945 (T-602)
YMS101   Astoria Marine 7/1941 20/6/1942 7/1942 stricken 6/1946
YMS102   Astoria Marine 6/1941 1/8/1942 8/1942 stricken 6/1947
YMS103   Astoria Marine 7/1941 29/8/1942 9/1942 sunk 8/4/1945
YMS104   Frank L. Sample, Boothbay Harbor 5/1941 17/2/1942 5/1942 stricken 7/1946
YMS105   Frank L. Sample, Boothbay Harbor 5/1941 10/3/1942 7/1942 stricken 5/1946
YMS106   Frank L. Sample, Boothbay Harbor 5/1941 19/4/1942 8/1942 stricken 6/1947
YMS107   Burger, Manitowoc 5/1941 28/3/1942 8/1942 stricken 4/1946
YMS108   Burger, Manitowoc 5/1941 18/4/1942 8/1942 stricken 7/1946
YMS109, 9/1947- AMS42, 2/1955- MSC(O)42 9/1947- Brambling Burger, Manitowoc 5/1941 16/5/1942 9/1942 stricken 11/1959
YMS110   Burger, Manitowoc 8/1941 16/7/1942 10/1942 stricken 4/1946
YMS111   Burger, Manitowoc 8/1941 25/7/1942 10/1942 stricken 4/1946
YMS112   Burger, Manitowoc 8/1941 5/8/1942 11/1942 stricken 7/1946
YMS113, 9/1947- AMS43, 2/1955- MSC(O)43 9/1947- Brant San Diego Marine 6/1941 13/2/1942 8/1942 stricken 11/1959
YMS114, 9/1947- AMS44, 2/1955- MSC(O)44 9/1947 - Courlan San Diego Marine 6/1941 13/3/1942 8/1942 stricken 11/1959
YMS115   San Diego Marine 6/1941 3/4/1942 9/1942 stricken 7/1946
YMS116   San Diego Marine 6/1941 20/4/1942 10/1942 stricken 8/1946
YMS117   Harbor Boat, Terminal I 5/1941 23/8/1942 4/1942 stricken 6/1947
YMS118   Harbor Boat, Terminal I 5/1941 27/10/1941 5/1942 stricken 4/1946
YMS119   Harbor Boat, Terminal I 7/1941 2/3/1942 6/1942 stricken 6/1947
YMS120, 9/1947- AMS45, 2/1955- MSC(O)45 9/1947- Crossbill Harbor Boat, Terminal I 8/1941 4/4/1942 8/1942 stricken 11/1959
YMS121   Kruse & Banks, North Bend 5/1941 14/3/1942 7/1942 stricken 7/1946
YMS122   Kruse & Banks, North Bend 5/1941 2/6/1942 9/1942 stricken 4/1946
YMS123   Kruse & Banks, North Bend 7/1941 14/3/1942 8/1942 stricken 4/1946
YMS124   Kruse & Banks, North Bend 12/1941 6/6/1942 10/1942 stricken 4/1946
YMS125   J. M. Martinac, Tacoma 1941 18/12/1941 7/1942 stricken 1946
YMS126   J. M. Martinac, Tacoma 7/1941 3/3/1942 9/1942 stricken 4/1946
YMS127   J. M. Martinac, Tacoma 10/1941 2/5/1942 10/1942 wrecked, CTL 10/1/1944
YMS128   J. M. Martinac, Tacoma 12/1941 27/6/1942 12/1942 stricken 4/1946
YMS129   Tacoma Boat 5/1941 18/12/1941 7/1942 stricken 5/1946
YMS130   Tacoma Boat 6/1941 18/12/1941 8/1942 stricken 4/1946
YMS131   Tacoma Boat 7/1941 4/3/1942 10/1942 stricken 4/1946
YMS132   Tacoma Boat 7/1941 2/5/1942 11/1942 stricken 4/1946
YMS133   Western, Tacoma 7/1941 18/12/1941 7/1942 wrecked 21/2/1943
YMS134   Western, Tacoma 8/1941 16/3/1942 9/1942 stricken 4/1946
YMS135   Astoria Marine 5/1942 26/12/1942 2/1943 to Soviet Union 9/1945 (T-606)
YMS136, 9/1947- AMS46, 2/1955- MSC(O)46 9/1947- Egret Astoria Marine 7/1942 8/2/1943 3/1943 stricken 11/1959, to Brazil (Jutai)
YMS137   Astoria Marine 8/1942 19/3/1943 4/1943 // --- to United Kingdom before commission 4/1943 (BYMS137)
YMS138   Astoria Marine 8/1942 17/4/1943 6/1943 stricken 6/1946, to Thailand (Ladya)
YMS139   Astoria Marine 1/1943 19/5/1943 6/1943 to Soviet Union 7/1945 (T-594)
YMS140   Astoria Marine 2/1943 19/6/1943 8/1943 stricken 6/1947
YMS141   Astoria Marine 3/1943 19/7/1943 8/1943 // --- to United Kingdom 8/1943 (BYMS141)
YMS142   Astoria Marine 4/1943 16/8/1943 --- // 9/1943 to United Kingdom 9/1943 (BYMS142)
YMS143   San Diego Marine 4/1942 30/6/1942 2/1943 to Soviet Union 5/1945 (T-522)
YMS144   San Diego Marine 4/1942 30/7/1942 3/1943 to Soviet Union 5/1945 (T-523)
YMS145   San Diego Marine 5/1942 7/9/1942 4/1943 to Soviet Union 5/1945 (T-524)
YMS146   San Diego Marine 6/1942 30/9/1942 6/1943 wrecked 9/10/1945
YMS147   Western, Tacoma 5/1942 24/10/1942 2/1943 stricken 2/1947
YMS148   Western, Tacoma 6/1942 29/11/1942 --- // 5/1943 to United Kingdom 5/1943 (BYMS148)
YMS149   Western, Tacoma 10/1942 4/4/1943 --- // 8/1943 to United Kingdom 8/1943 (BYMS149)
YMS150   Western, Tacoma 12/1942 5/4/1943 --- // 8/1943 to United Kingdom 8/1943 (BYMS150)
YMS151   Campbell, San Diego 6/1942 31/3/1943 10/1943 wrecked 9/10/1945
YMS152   Campbell, San Diego 8/1942 17/4/1943 --- // 11/1943 to United Kingdom 11/1943 (BYMS152)
YMS153   Campbell, San Diego 8/1942 31/7/1943 --- // 11/1943 to United Kingdom 11/1943 (BYMS153)
YMS154   Campbell, San Diego 8/1942 4/9/1943 --- // 1/1944 to United Kingdom 1/1944 (BYMS154)
YMS155   Burger, Manitowoc 6/1942 27/10/1942 --- // 2/1943 to United Kingdom 2/1943 (BYMS155)
YMS156   Burger, Manitowoc 6/1942 12/11/1942 --- // 3/1943 to United Kingdom 3/1943 (BYMS156)
YMS157   Burger, Manitowoc 7/1942 1/12/1942 --- // 4/1943 to United Kingdom 4/1943 (BYMS157)
YMS158   Burger, Manitowoc 8/1942 26/12/1942 5/1943 stricken 6/1946
YMS159   Burger, Manitowoc 8/1942 16/1/1943 6/1943 stricken 8/1946
YMS160   Burger, Manitowoc 8/1942 30/1/1943 7/1943 to Philippines 5/1945
YMS161   Burger, Manitowoc 12/1942 3/4/1943 --- // 7/1943 to United Kingdom 7/1943 (BYMS161)
YMS162   Burger, Manitowoc 12/1942 24/4/1943 --- // 8/1943 to United Kingdom 8/1943 (BYMS162)
YMS163   Dachel-Carter, Benton Harbor 4/1942 27/10/1942 3/1943 stricken 2/1947
YMS164, 2/1947- AMS2, 2/1955- MHC44 2/1947- Bobolink Dachel-Carter, Benton Harbor 4/1942 28/11/1942 3/1943 minehunter 9/1955, stricken 1/1960
YMS165   Dachel-Carter, Benton Harbor 5/1942 16/1/1943 4/1943 stricken 2/1947
YMS166   Dachel-Carter, Benton Harbor 5/1942 30/1/1943 5/1943 stricken 7/1946
YMS167   Dachel-Carter, Benton Harbor 8/1942 12/6/1943 7/1943 // --- to United Kingdom before commission 7/1943 (BYMS167)
YMS168   Dachel-Carter, Benton Harbor 9/1942 4/7/1943 8/1943 // --- to United Kingdom before commission 8/1943 (BYMS168)
YMS169   Dachel-Carter, Benton Harbor 9/1942 24/4/1943 6/1943 to France 8/1944 (D301 Amarante)
YMS170, 2/1947- AMS3, 2/1955- MHC45 2/1947- Bunting Dachel-Carter, Benton Harbor 9/1942 29/5/1943 7/1943 minehunter 8/1955, stricken 6/1960
YMS171   Henry C. Grebe, Chicago 5/1942 21/11/1942 3/1943 // --- to United Kingdom before commission 3/1943 (BYMS171)
YMS172   Henry C. Grebe, Chicago 5/1942 26/11/1942 4/1943 // --- to United Kingdom before commission 4/1943 (BYMS172)
YMS173   Henry C. Grebe, Chicago 5/1942 7/12/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS173)
YMS174   Henry C. Grebe, Chicago 6/1942 19/12/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS174)
YMS175   Henry C. Grebe, Chicago 6/1942 9/1/1943 6/1943 // --- to United Kingdom before commission 6/1943 (BYMS175)
YMS176, 8/1945- YMS(C)176   Henry C. Grebe, Chicago 7/1942 23/1/1943 7/1943 stricken 9/1946
YMS177   Henry C. Grebe, Chicago 9/1942 20/3/1943 7/1943 stricken 9/1946
YMS178   Henry C. Grebe, Chicago 9/1942 24/4/1943 7/1943 to Soviet Union 7/1945 (T-588)
YMS179, 2/1947- AMS4, 2/1955- MSC(O)4 2/1947- Cardinal Henry C. Grebe, Chicago 10/1942 8/5/1943 7/1943 stricken 11/1959, to Brazil (Javari)
YMS180   Henry C. Grebe, Chicago 10/1942 5/6/1943 8/1943 to Soviet Union 8/1945 (T-609)
YMS181   Henry C. Grebe, Chicago 1/1943 24/6/1943 9/1943 // --- to United Kingdom before commission 9/1943 (BYMS181)
YMS182   Henry C. Grebe, Chicago 1/1943 15/7/1943 9/1943 // --- to United Kingdom before commission 9/1943 (BYMS182)
YMS183   Greenport Basin 3/1942 25/6/1942 1/1943 stricken 6/1947
YMS184   Greenport Basin 5/1942 18/7/1942 1/1943 to Soviet Union 7/1945 (T-595)
YMS185   Greenport Basin 5/1942 8/8/1942 2/1943 // --- to United Kingdom before commission 2/1943 (BYMS185)
YMS186   Greenport Basin 5/1942 22/8/1942 2/1943 // --- to United Kingdom before commission 2/1943 (BYMS186)
YMS187   Greenport Basin 6/1942 7/9/1942 3/1943 // --- to United Kingdom before commission 3/1943 (BYMS187)
YMS188   Greenport Basin 7/1942 26/9/1942 3/1943 // --- to United Kingdom before commission 3/1943 (BYMS188)
YMS189   Greenport Basin 8/1942 14/10/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS189)
YMS190   Greenport Basin 8/1942 31/10/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS190)
YMS191   Greenport Basin 9/1942 14/11/1942 6/1943 // --- to United Kingdom before commission 6/1943 (BYMS191)
YMS192, 2/1947- AMS5, 2/1955- MSC(O)5 2/1947- Condor Greenport Basin 9/1942 5/12/1942 6/1943 to Japan 3/1955 (Ujishima)
YMS193, 9/1947- AMS47, 2/1955- MSC(O)47 9/1947- Fulmar Greenport Basin 10/1942 2/1/1943 6/1943 stricken 10/1968
YMS194   Greenport Basin 11/1942 30/1/1943 7/1943 // --- to United Kingdom before commission 7/1943 (BYMS2194)
YMS195   Hiltebrant, Kingston 4/1942 10/8/1942 3/1943 survey vessel AGS11 Chauvenet 3/1945
YMS196   Hiltebrant, Kingston 4/1942 14/8/1942 4/1943 to Philippines 5/1946
YMS197   Hiltebrant, Kingston 4/1942 24/8/1942 5/1943 to United Kingdom 6/1943 (BYMS197)
YMS198   Hiltebrant, Kingston 5/1942 7/9/1942 5/1943 stricken 8/1946
YMS199   Hiltebrant, Kingston 8/1942 10/10/1942 6/1943 stricken 2/1947
YMS200   Hiltebrant, Kingston 8/1942 26/10/1942 7/1943 stricken 6/1946
YMS201, 2/1947- AMS6, 2/1955- MSC(O)6 2/1947- Courser Hiltebrant, Kingston 8/1942 19/11/1942 7/1943 stricken 11/1959
YMS202   Hiltebrant, Kingston 9/1942 9/12/1942 8/1943 // --- to United Kingdom before commission 8/1943 (BYMS202)
YMS203   Hiltebrant, Kingston 10/1942 15/1/1943 8/1943 // --- to United Kingdom before commission 8/1943 (BYMS203)
YMS204   Hiltebrant, Kingston 11/1942 2/3/1943  9/1943 // --- to United Kingdom before commission 9/1943 (BYMS204)
YMS205   Hiltebrant, Kingston 11/1942 31/3/1943 9/1943 // --- to United Kingdom before commission 9/1943 (BYMS205)
YMS206   Hiltebrant, Kingston 12/1942 29/4/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS206)
YMS207   Robert Jacob, New York 4/1942 1/8/1942 1/1943 to United Kingdom 3/1943 (BYMS207)
YMS208   Robert Jacob, New York 4/1942 8/8/1942 2/1943 to United Kingdom 3/1943 (BYMS208)
YMS209   Robert Jacob, New York 4/1942 15/8/1942 3/1943 // --- to United Kingdom before commission 3/1943 (BYMS209)
YMS210   Robert Jacob, New York 5/1942 7/9/1942 4/1943 // --- to United Kingdom before commission 4/1943 (BYMS210)
YMS211   Robert Jacob, New York 5/1942 10/10/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS211)
YMS212   Robert Jacob, New York 5/1942 16/10/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS212)
YMS213   Robert Jacob, New York 6/1942 13/11/1942 6/1943 // --- to United Kingdom before commission 6/1943 (BYMS213)
YMS214   Robert Jacob, New York 8/1942 26/2/1943 7/1943 // --- to United Kingdom before commission 7/1943 (BYMS214)
YMS215, 2/1947- AMS7, 2/1955- MSC(O)7 2/1947- Crow Robert Jacob, New York 8/1942 22/2/1943 7/1943 stricken 11/1959
YMS216   J. M. Martinac, Tacoma 6/1942 17/10/1942 2/1943 to Soviet Union 7/1945 (T-596)
YMS217   J. M. Martinac, Tacoma 6/1942 21/11/1942 4/1943 // --- to United Kingdom before commission 4/1943 (BYMS217)
YMS218, 2/1947- AMS8, 2/1955- MSC(O)8 2/1947- Curlew J. M. Martinac, Tacoma 7/1942 23/12/1942 6/1943 to South Korea 1/1956 (Kum Hwa)
YMS219, 2/1947- AMS9, 2/1955- MSC(O)9 2/1947- Flicker J. M. Martinac, Tacoma 10/1942 23/1/1943 7/1943 stricken 1/1960
YMS220   J. M. Martinac, Tacoma 11/1942 6/3/1943 8/1943 stricken 6/1946
YMS221   J. M. Martinac, Tacoma 12/1942 22/4/1943 9/1943 // --- to United Kingdom before commission 9/1943 (BYMS221)
YMS222   Mojean & Ericson, Tacoma 5/1942 11/11/1942 4/1943 stricken 5/1946
YMS223   Mojean & Ericson, Tacoma 61942 27/12/1942 4/1943 // --- to United Kingdom before commission 4/1943 (BYMS223)
YMS224   Mojean & Ericson, Tacoma 11/1942 28/2/1943 8/1943 stricken 6/1946
YMS225   Mojean & Ericson, Tacoma 1/1943 25/4/1943 10/1943 // --- to United Kingdom  before commission 10/1943 (BYMS225)
YMS226   Frank L. Sample, Boothbay Harbor 3/1942 31/8/1942 1/1943 to United Kingdom 3/1943 (BYMS226)
YMS227   Frank L. Sample, Boothbay Harbor 4/1942 7/9/1942 3/1943 to France 3/1944 (D273 Zinnia)
YMS228   Frank L. Sample, Boothbay Harbor 4/1942 2/10/1942 5/1943 to Turkey 2/1948 (Kemer)
YMS229   Frank L. Sample, Boothbay Harbor 9/1942 11/1/1943 6/1943 // --- to United Kingdom before commission 6/1943 (BYMS229)
YMS230   Frank L. Sample, Boothbay Harbor 9/1942 20/2/1943 7/1943 // --- to United Kingdom before commission 7/1943 (BYMS230)
YMS231, 2/1947- AMS10, 2/1955- MSC(O)10 2/1947- Firecrest Frank L. Sample, Boothbay Harbor 10/1942 3/4/1943 8/1943 to Japan 3/1955 (Etajima)
YMS232   Frank L. Sample, Boothbay Harbor 1/1943 26/4/1943 9/1943 // --- to United Kingdom before commission 9/1943 (BYMS232)
YMS233   Frank L. Sample, Boothbay Harbor 2/1943 22/7/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS233)
YMS234   Frank L. Sample, Boothbay Harbor 4/1943 4/9/1943 11/1943 // --- to United Kingdom before commission 11/1943 (BYMS234)
YMS235   Stadium, Cleveland 7/1942 15/2/1943 7/1943 stricken 8/1946
YMS236   Stadium, Cleveland 7/1942 16/1/1943 6/1943 // --- to United Kingdom before commission 6/1943 (BYMS236)
YMS237   Stadium, Cleveland 6/1942 7/9/1942 11/1942 to Soviet Union 7/1945 (T-589)
YMS238, 2/1947- AMS11, 2/1955- MSC(O)11 2/1947- Flamingo Stadium, Cleveland 5/1942 12/9/1942 11/1942 stricken 11/1959
YMS239   Stadium, Cleveland 5/1942 27/10/1942 4/1943 to Turkey 2/1948 (Kerempe)
YMS240   Stadium, Cleveland 4/1942 31/10/1942 5/1943 // --- to United Kingdom before commission 5/1943 (BYMS240)
YMS241   Tacoma Boat 5/1942 7/9/1942 2/1943 to Soviet Union 7/1945 (T-591)
YMS242, 8/1951- AMCU12, 2/1955- MHC12 8/1951- Harkness Tacoma Boat 6/1942 10/10/1942 3/1943 survey vessel AGS12 Harkness 3/1945-8/1951, stricken 11/1959
YMS243   Tacoma Boat 6/1942 10/11/1942 5/1943 stricken 1/1946
YMS244   Tacoma Boat 10/192 18/12/1942 7/1943 // --- to United Kingdom before commission 7/1943 (BYMS244)
YMS245   Tacoma Boat 10/1942 6/2/1943 7/1943 stricken 6/1946, to South Korea (Kang Wha)
YMS246   Tacoma Boat 11/1942 11/3/1943 8/1943// --- to United Kingdom before commission 8/1943 (BYMS246)
YMS247   Weaver, Orange 5/1942 14/10/1942 5/1943 to Norway 5/1945 (NYMS247 Vinstra)
YMS248   Weaver, Orange 5/1942 14/10/1942 6/1943 stricken 6/1946
YMS249   Weaver, Orange 5/1942 24/10/1942 6/1943 stricken 7/1946
YMS250   Weaver, Orange 5/1942 9/12/1942 7/1943 stricken 6/1947
YMS251   Weaver, Orange 5/1942 24/12/1942 8/1943 stricken 7/1946
YMS252   Weaver, Orange 5/1942 24/6/1943 9/1943 // --- to United Kingdom before commission 9/1943 (BYMS252)
YMS253   Weaver, Orange 5/1942 3/7/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS253)
YMS254   Weaver, Orange 5/1942 31/1/1943 11/1943 // --- to United Kingdom before commission 11/1943 (BYMS254)
YMS255   Weaver, Orange 5/1942 22/5/1943 11/1943 // --- to United Kingdom before commission 11/1943 (BYMS255)
YMS256   Weaver, Orange 6/1942 2/8/1943 12/1943 // --- to United Kingdom before commission 12/1943 (BYMS256)
YMS257   Weaver, Orange 10/1942 30/9/1943 1/1944 // --- to United Kingdom before commission 1/1944 (BYMS2257)
YMS258   Weaver, Orange 10/1942 28/10/1943 2/1944 // --- to United Kingdom before commission 2/1944 (BYMS2258)
YMS259   South Coast, Newport Beach 5/1942 21/8/1942 3/1943 stricken 9/1947
YMS260   South Coast, Newport Beach 5/1942 6/9/1942 4/1943 to Soviet Union 8/1945 (T-527)
YMS261   South Coast, Newport Beach 6/1942 25/9/1942 7/1943 // --- to United Kingdom before commission 7/1943 (BYMS261)
YMS262, 8/1951- AMCU13, 2/1955-  MHC13 8/1951- James M. Gillis South Coast, Newport Beach 9/1942 24/12/1942 8/1943 survey vessel AGS13 James M. Gillis 3/1945-8/1951, stricken 1/1960
YMS263   South Coast, Newport Beach 8/1942 2/11/1942 8/1943 survey vessel AGS14 Simon Newcomb 3/1945
YMS264   South Coast, Newport Beach 9/1942 16/1/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS264)
YMS265   Kruse & Banks, North Bend 5/1942 25/11/1942 3/1943 stricken 6/1947
YMS266   Kruse & Banks, North Bend 5/1942 24/12/1942 4/1943 to Soviet Union 8/1945 (T-601)
YMS267   Kruse & Banks, North Bend 7/1942 6/3/1943 6/1943 stricken 6/1947
YMS268, 9/1947- AMS48, 2/1955- MSC(O)48 9/1947- Lapwing Kruse & Banks, North Bend 12/1942 15/4/1943 6/1943 stricken 11/1959
YMS269   Bellingham Iron Wks 4/1942 7/9/1942 2/1943 stricken 6/1947
YMS270   Bellingham Iron Wks 5/1942 7/9/1942 3/1943 stricken 6/1947
YMS271, 9/1947- AMS49, 2/1955- MSC(O)49 9/1947- Lorikeet Bellingham Iron Wks 7/1942 17/10/1942 4/1943 TS 10/1959, stricken 10/1968
YMS272   Bellingham Iron Wks 7/1942 14/11/1942 5/1943 to Soviet Union 7/1945 (T-597)
YMS273   Bellingham Iron Wks 7/1942 26/12/1942 7/1943 to Soviet Union 7/1945 (T-598)
YMS274   Bellingham Iron Wks 9/1942 9/1/1943 7/1943 stricken 6/1947
YMS275   Bellingham Iron Wks 11/1942 4/2/1943 8/1943 wrecked 9/10/1945
YMS276   Bellingham Iron Wks 11/1942 5/3/1943 9/1943 stricken 2/1947
YMS277   J. M. Martinac, Tacoma 2/1943 19/6/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS277)
YMS278   J. M. Martinac, Tacoma 3/1943 17/7/1943 11/1943 // --- to United Kingdom before commission 11/1943 (BYMS278)
YMS279   Henry C. Grebe, Chicago 1/1943 29/7/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS279)
YMS280   Henry C. Grebe, Chicago 1/1943 12/8/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS280)
YMS281   San Diego Marine 7/1942 30/10/1942 7/1943 stricken 10/1946
YMS282   San Diego Marine 8/1942 30/11/1942 8/1943 // --- to United Kingdom before commission 8/1943 (BYMS282)
YMS283   San Diego Marine 9/1942 30/12/1942 9/1943 stricken 2/1947
YMS284   San Diego Marine 10/1942 17/2/1943 10/1943 // --- to United Kingdom before commission 10/1943 (BYMS284)
YMS285   Northwestern, Bellingham 6/1942 20/3/1943 6/1943 to Soviet Union 9/1945 (T-610)
YMS286   Northwestern, Bellingham 6/1942 20/3/1943 6/1943 stricken 9/1946
YMS287   Associated, Seattle 7/1942 27/10/1942 3/1943 to Soviet Union 9/1945 (T-611)
YMS288   Associated, Seattle 8/1942 28/11/1942 3/1943 to Soviet Union 8/1945 (T-600)
YMS289   Associated, Seattle 10/1942 26/1/1943 6/1943 to Turkey 1947 (Kilimi)
YMS290, 9/1947- AMS50, 2/1955- MSC(O)50 9/1947- Nightingale Associated, Seattle 11/1942 27/2/1943 7/1943 stricken 11/1959
YMS291, 9/1947- AMS51, 2/1955- MSC(O)51 9/1947- Reedbird Associated, Seattle 1/1943 20/4/1943 8/1943 TS 12/1957, stricken 10/1968
YMS292   Associated, Seattle 3/1943 8/6/1943 10/1943 stricken 2/1947
YMS293   Associated, Seattle 4/1943 7/7/1943 10/1943 stricken 9/1946
YMS294, 9/1947- AMS57, 2/1955- MSC(O)57 9/1947- Redpoll Associated, Seattle 6/1943 11/8/1943 9/1943 TS 11/1957, stricken 7/1959
YMS295   Associated, Seattle 7/1943 11/8/1943 11/1943 to Soviet Union 7/1945 (T-599)
YMS296   Associated, Seattle 8/1943 3/11/1943 12/1943 stricken 6/1947
YMS297   Tacoma Boat 1/1943 24/4/1943 9/1943 stricken 10/1946
YMS298   Tacoma Boat 2/1943 16/6/1943 10/1943 stricken 7/1946
YMS299, 9/1947- AMS52, 2/1955- MSC(O)52 9/1947- Rhea William F. Stone, Oakland 6/1942 14/11/1942 4/1943 stricken 11/1959
YMS300   William F. Stone, Oakland 6/1942 7/12/192 7/1943 stricken 2/1947
YMS301   William F. Stone, Oakland 11/1942 1/5/1943 9/1943 to Soviet Union 8/1945 (T-605)
YMS302   William F. Stone, Oakland 12/1942 12/6/1943 11/1943 stricken 1/1948
YMS303   Rice Bros, E. Boothbay 5/1942 21/7/1943 8/1943 stricken 7/1946
YMS304   Rice Bros, E. Boothbay 6/1942 10/8/1943 10/1943 sunk 30/7/1944
YMS305   Rice Bros, E. Boothbay 7/1942 30/9/1943 11/1943 to Norway 5/1945 (NYMS305 Gaula)
YMS306, 2/1947- AMS12, 2/1955- MSC(O)12 2/1947- Goldfinch Rice Bros, E. Boothbay 9/1942 27/11/1943 1/1944 stricken 11/1957
YMS307   Rice Bros, E. Boothbay 10/1942 31/12/1943 2/1944 to Turkey 2/1948 (Kirte)
YMS308   Henry B. Nevins, New York 2/1943 21/7/1943 8/1943 stricken 1/1946
YMS309   Henry B. Nevins, New York 4/1943 17/8/1943 9/1943 stricken 6/1946
YMS310   Henry B. Nevins, New York 4/1943 11/9/1943 10/1943 stricken 6/1946
YMS311, 8/1945- YMSC311, 9/1947- AMS53, 2/1955- MSC(O)53 9/1947- Robin Henry B. Nevins, New York 5/1943 6/10/1943 11/1943 stricken 8/1961
YMS312, 2/1947- AMS13, 2/1955- MSC(O)13 2/1947- Grackle Henry B. Nevins, New York 6/1943 9/11/1943 12/1943 stricken 3/1963, to Brazil (Jurvena)
YMS313   Harbor Boat, Terminal I 5/1942 23/2/1943 6/1943 stricken 6/1947
YMS314   Harbor Boat, Terminal I 6/1942 17/3/1943 7/1943 stricken 6/1947
YMS315   Harbor Boat, Terminal I 6/1942 14/4/1943 8/1943 stricken 6/1946
YMS316   Harbor Boat, Terminal I 6/1942 1/5/1943 8/1943 stricken 6/1947
YMS317, 2/1947- AMS14, 2/1955- MSC(O)14 2/1947- Grosbeak South Coast, Newport Beach 10/1942 27/2/1943 11/1943 stricken 11/1959
YMS318   South Coast, Newport Beach 12/1942 1/5/1943 12/1943 stricken 1946
YMS319   South Coast, Newport Beach 1/1943 5/6/1943 2/1944 stricken 3/1948
YMS320   Al Larson, Terminal I 7/1942 9/1/1943 8/1943 stricken 6/1946
YMS321, 2/1947- AMS15, 2/1955- MSC(O)15 2/1947- Grouse Al Larson, Terminal I 8/1942 20/2/1943 10/1943 TS 11/1958, wrecked 21/9/1963
YMS322   Al Larson, Terminal I 1/1943 31/5/1943 11/1943 stricken 4/1946
YMS323   Al Larson, Terminal I 2/1943 15/7/1943 12/1943 stricken 6/1946, to South Korea (Ku Po)
YMS324, 2/1947- AMS16, 8/1954- AMCU46, 2/1955- MHC46 2/1947- Gull Al Larson, Terminal I 6/1943 14/10/1943 2/1944 minehunter 1/1955, stricken 3/1959
YMS325   Al Larson, Terminal I 7/1943 11/1/1944 4/1944 stricken 3/1947
YMS326   Ballard, Seattle 6/1942 17/11/1942 3/1943 stricken 6/1947
YMS327, 9/1947- AMS54, 2/1955- MSC(O)54 9/1947- Ruff Ballard, Seattle 6/1942 5/12/1942 4/1943 TS 10/1959, stricken 11/1969
YMS328   Ballard, Seattle 7/1942 19/12/1942 5/1943 stricken 10/1946
YMS329   Ballard, Seattle 11/1942 23/2/1943 7/1943 stricken 6/1946
YMS330   Ballard, Seattle 12/1942 27/3/1943 8/1943 stricken 6/1946, to South Korea (Kang Kyong)
YMS331   Ballard, Seattle 12/1942 24/4/1943 9/1943 stricken 10/1946
YMS332   Ballard, Seattle 3/1943 5/6/1943 10/1943 to Soviet Union 9/1945 (T-607)
YMS333   Ballard, Seattle 6/1943 4/8/1943 12/1943 stricken 10/1946
YMS334   Seattle SB 6/1942 24/10/1942 3/1943 stricken 6/1946, to Thailand (Bangkeo)
YMS335   Seattle SB 7/1942 21/11/1942 4/1943 stricken 9/1947
YMS336   Seattle SB 10/1942 19/12/1942 5/1943 stricken 6/1946
YMS337   Seattle SB 11/1942 20/2/1943 7/1943 stricken 8/1946
YMS338   Seattle SB 1/1943 20/3/1943 8/1943 stricken 6/1946
YMS339   Seattle SB 3/1943 8/5/1943 9/1943 to China 6/1948
YMS340   Seattle SB 3/1943 26/6/1943 10/1943 stricken 6/1947
YMS341   Seattle SB 5/1943 21/8/1943 12/1943 wrecked 16/9/1945
YMS342   Bellingham Iron Wks 1/1943 5/4/1943 10/1943 stricken 8/1946
YMS343   Bellingham Iron Wks 2/1943 1/5/1943 11/1943 stricken 3/1947
YMS344   Bellingham Iron Wks 3/1943 4/6/1943 1944 // --- completed as degaussing vessel YDG6
YMS345   Bellingham Iron Wks 4/1943 14/8/1943 12/1943 stricken 7/1946
YMS346   Gibbs Gas Engine, Jacksonville 8/1942 5/1/1943 8/1943 stricken 6/1946, to China
YMS347   Gibbs Gas Engine, Jacksonville 9/1942 7/1/1943 8/1943 stricken 6/1946
YMS348   Gibbs Gas Engine, Jacksonville 9/1942 9/2/1943 9/1943 stricken 2/1948
YMS349   Gibbs Gas Engine, Jacksonville 9/1942 5/3/1943 9/1943 stricken 2/1947
YMS350   Gibbs Gas Engine, Jacksonville 10/1942 29/1/1943 9/1943 sunk 2/7/1944
YMS351   Gibbs Gas Engine, Jacksonville 10/1942 21/2/1943 10/1943 stricken 6/1946
YMS352   Gibbs Gas Engine, Jacksonville 1/1943 14/5/1943 10/1943 stricken 7/1946
YMS353   Gibbs Gas Engine, Jacksonville 1/1943 20/5/1943 11/1943 stricken 7/1946
YMS354   Gibbs Gas Engine, Jacksonville 1/1943 29/5/1943 11/1943 stricken 1/1947, to South Korea (Kang Jin)
YMS355   Gibbs Gas Engine, Jacksonville 1/1943 8/6/1943 11/1943 stricken 5/1946
YMS356   Gibbs Gas Engine, Jacksonville 2/1943 6/9/1943 12/1943 stricken 6/1946, to South Korea (Kim Hae)
YMS357   Gibbs Gas Engine, Jacksonville 3/1943 16/9/1943 12/1943 stricken 8/1946
YMS358   Robert Jacob, New York 9/1942 22/3/1943 8/1943 stricken 1/1947, to South Korea (Kyong Chu)
YMS359   Robert Jacob, New York 9/1942 9/4/1943 8/1943 stricken 4/1946
YMS360   Robert Jacob, New York 10/1942 16/6/1943 9/1943 stricken 4/1946
YMS361   Robert Jacob, New York 10/1942 11/6/1943 9/1943 stricken 5/1946
YMS362, 2/1947- AMS17, 2/1955- MSC(O)17 2/1947- Hawk Robert Jacob, New York 11/1942 22/5/1943 10/1943 stricken 10/1957
YMS363   Wheeler, Brooklyn 11/1942 8/6/1943 8/1943 stricken 6/1946
YMS364   Wheeler, Brooklyn 11/1942 25/6/1943 8/1943 stricken 3/1948
YMS365   Wheeler, Brooklyn 12/1942 26/6/1943 8/1943 sunk 26/6/1945
YMS366   Wheeler, Brooklyn 12/1942 5/7/1943 9/1943 stricken 6/1946
YMS367   Wheeler, Brooklyn 12/1942 15/7/1943 9/1943 to China 10/1948
YMS368   Wheeler, Brooklyn 12/1942 17/7/1943 9/1943 stricken 6/1947
YMS369, 2/1947- AMS18, 2/1955- MSC(O)18 2/1947- Heron Wheeler, Brooklyn 1/1943 24/7/1943 10/1943 to Japan 3/1955 (Nuwajima)
YMS370   Wheeler, Brooklyn 1/1943 7/8/1943 10/1943 stricken 6/1946
YMS371, 2/1947- AMS19, 2/1955- MSC(O)19 2/1947- Hornbill Weaver, Orange 11/1942 27/11/1943 2/1944 stricken 11/1959
YMS372, 2/1947- AMS20, 2/1955- MSC(O)20 2/1947- Hummer Weaver, Orange 12/1942 23/12/1943 3/1944 stricken 2/1959, to Japan (Ninoshima)
YMS373, 2/1947- AMS21, 2/1955- MSC(O)21 2/1947- Jackdaw Weaver, Orange 12/1942 23/1/1944 4/1944 to Brazil 1/1960 (Jurua)
YMS374, 2/1947- AMS22, 2/1955- MSC(O)22 2/1947- Kite Weaver, Orange 1/1943 17/2/1944 5/1944 to South Korea 1/1956 (Kim Po)
YMS375   Greenport Basin 12/1942 27/2/1943 7/1943 stricken 2/1948, to Turkey (Kozlu)
YMS376, 2/1947- AMS23, 2/1955- MSC(O)23 2/1947- Lark Greenport Basin 1/1943 13/3/1943 8/1943 to Japan 2/1955 (Ninoshima)
YMS377   Greenport Basin 2/1943 3/4/1943 8/1943 to Norway 3/1945 (NYMS377 Driva)
YMS378   Greenport Basin 3/1943 27/4/1943 9/1943 sunk 30/7/1944
YMS379   Greenport Basin 3/1943 29/5/1943 9/1943 to Norway 3/1945 (NYMS379 Alta)
YMS380   Greenport Basin 4/1943 29/5/1943 9/1943 to Norway 3/1945 (NYMS380 Vorma)
YMS381   Greenport Basin 5/1943 17/7/1943 10/1943 to Norway 3/1945 (NYMS381 Begna)
YMS382   Greenport Basin 6/1943 21/8/1943 11/1943 to Norway 3/1945 (NYMS382)
YMS383   Seattle SB 4/1942 29/9/1942 2/1943 wrecked 9/10/1945
YMS384   Seattle SB 4/1942 17/10/1942 4/1943 wrecked 9/10/1945, never repaired
YMS385   Seattle SB 6/1942 27/10/1942 4/1943 sunk 1/10/1944
YMS386   Seattle SB 10/1942 23/3/1943 7/1943 stricken 7/1946
YMS387   Seattle SB 10/1942 16/4/1943 8/1943 stricken 7/1946
YMS388   Seattle SB 11/1942 10/5/1943 9/1943 stricken 6/1946
YMS389, 8/1945- YMSC389   Stadium, Cleveland 11/1942 6/3/1943 8/1943 stricken 7/1947
YMS390, 8/1945- YMSC390   Stadium, Cleveland 11/1942 3/4/1943 8/1943 stricken 6/1947
YMS391   Stadium, Cleveland 11/1942 8/5/1943 9/1943 stricken 6/1947
YMS392   Stadium, Cleveland 11/1942 10/6/1943 10/1943 stricken 6/1946, to South Korea
YMS393   Harbor Boat, Terminal I 6/1942 29/5/1943 9/1943 stricken 6/1947, to China
YMS394   Harbor Boat, Terminal I 7/1942 24/6/1943 10/1943 stricken 9/1946
YMS395, 2/1947- AMS24, 2/1955- MSC(O)24 2/1947- Linnet Harbor Boat, Terminal I 7/1942 15/7/1943 11/1943 TS 10/1959, stricken 10/1968
YMS396   Harbor Boat, Terminal I 7/1942 9/8/1943 1/1944 stricken 6/1947
YMS397   Henry B. Nevins, New York 6/1942 5/12/1942 1/1943 stricken 3/1947
YMS398   Henry B. Nevins, New York 6/1942 4/1/1943 3/1943 stricken 3/1947
YMS399   Henry B. Nevins, New York 6/1942 8/2/1943 4/1943 stricken 6/1947
YMS400, 2/1947- AMS25 2/1947- Magpie Henry B. Nevins, New York 7/1942 24/3/193 5/1943 sunk 1/10/1950
YMS401   Henry B. Nevins, New York 7/1942 1/4/1943 6/1943 stricken 2/1947
YMS402, 9/1947- AMS55, 2/1955- MSC(O)55 9/1947- Seagull Henry B. Nevins, New York 7/1942 17/4/1943 6/1943 stricken 11/1959
YMS403   Henry B. Nevins, New York 8/1942 22/5/1943 7/1943 stricken 6/1947
YMS404   Henry B. Nevins, New York 8/1942 26/5/1943 8/1943 stricken 2/1947
YMS405   Henry C. Grebe, Chicago 1/1943 24/8/1943 11/1943 stricken 2/1947
YMS406   Henry C. Grebe, Chicago 1/1943 6/9/1943 11/1943 to Norway 5/1945 (NYMS406 Rana)
YMS407   Henry C. Grebe, Chicago 4/1943 16/9/1943 12/1943 stricken 7/1946
YMS408   Henry C. Grebe, Chicago 4/1943 9/10/1943 12/1943 stricken 7/1947
YMS409   Henry C. Grebe, Chicago 5/1943 27/10/1943 1/1944 wrecked 14/9/1944
YMS410   Bellingham Iron Wks 9/1943 22/2/1944 9/1944 stricken 11/1946
YMS411   Bellingham Iron Wks 10/1943 22/4/1944 8/1944 stricken 8/1946, to Philippines
YMS412   Bellingham Iron Wks 11/1943 3/6/1944 9/1944 stricken 5/1947
YMS413   Bellingham Iron Wks 1/1944 4/7/1944 10/1944 stricken 1/1947, to South Korea (Kwang Chu)
YMS414   Stadium, Cleveland 9/1943 11/3/1944 9/1944 stricken 5/1947
YMS415, 3/1947- AMS40, 2/1955- MSC(O)40 3/1947- Chatterer Stadium, Cleveland 10/1943 15/4/1944 10/1944 to Japan 4/1955 (Yurishima)
YMS416   Stadium, Cleveland 1/1944 28/5/1944 10/1944 stricken 2/1947
YMS417, 2/1947- AMS26, 10/1954- AMCU47, 2/1955- MHC47 2/1947- Merganser Stadium, Cleveland 1/1944 29/6/1944 11/1944 minehunter 10/1954, stricken 5/1959
YMS418   Henry C. Grebe, Chicago 9/1943 22/2/1944 9/1944 stricken 2/1947
YMS419, 2/1947- AMS27, 2/1955- MSC(O)27 2/1947- Mockingbird Henry C. Grebe, Chicago 9/1943 23/3/1944 11/1944 to South Korea 1/1956 (Ko Chang)
YMS420   Henry C. Grebe, Chicago 9/1943 8/4/1944 2/1945 stricken 1/1950, to Canada (Cordova)
YMS421   Henry C. Grebe, Chicago 9/1943 15/4/1944 3/1945 wrecked 15/9/1945
YMS422, 2/1947- AMS28, 2/1955- MSC(O)28 2/1947- Osprey Astoria Marine 10/1943 1/6/1944 9/1944

to Japan 3/1955 (Yakushima)
YMS423   Astoria Marine 12/1943 5/8/1944 10/1944 stricken 2/1947, to South Korea (Kaya Song)
YMS424   Astoria Marine 1/1944 12/8/1944 11/1944 wrecked 9/10/1945, never repaired
YMS425, 9/1947- AMS58, 2/1955- MSC(O)58 9/1947- Siskin Astoria Marine 6/1944 6/9/1944 12/1944 stricken 10/1968
YMS426   Mojean & Ericson, Tacoma 9/1943 9/2/1944 9/1944 stricken 6/1947
YMS427   Mojean & Ericson, Tacoma 11/1943 25/3/1944 11/1944 stricken 2/1947
YMS428   Mojean & Ericson, Tacoma 2/1944 5/6/1944 1/1945 to Soviet Union 5/1945 (T-525)
YMS429   Mojean & Ericson, Tacoma 3/1944 30/11/1944 3/1945 stricken 2/1947
YMS430, 2/1947- AMS29, 2/1955- MSC(O)29 2/1947- Ostrich Tacoma Boat 11/1943 23/3/1944 10/1944 stricken 11/1959
YMS431   Tacoma Boat 1/1944 20/5/1944 11/1944 stricken 8/1946
YMS432   Tacoma Boat 3/1944 8/7/1944 12/1944 stricken 2/1947
YMS433   Tacoma Boat 6/1944 30/9/1944 2/1945 stricken 8/1946
YMS434, 2/1947- AMS30 2/1947- Parrakeet J. M. Martinac, Tacoma 10/1943 10/5/1944 11/1944 stricken 6/1947
YMS435   J. M. Martinac, Tacoma 5/1944 30/9/1944 3/1945 to Soviet Union 5/1945 (T-526)
YMS436   J. M. Martinac, Tacoma 6/1944 15/3/1945 5/1945 stricken 3/1947
YMS437, 2/1947- AMS31 2/1947- Partridge J. M. Martinac, Tacoma 10/1944 22/4/1945 7/1945 sunk 2/2/1951
YMS438   Robert Jacob, New York 11/1943 7/7/1944 10/1944 stricken 3/1947
YMS439   Robert Jacob, New York 10/1943 14/7/1944 11/1944 stricken 7/1946
YMS440   Robert Jacob, New York 11/1943 28/10/1944 12/1944 stricken 8/1946
YMS441, 2/1947- AMS32, 2/1955- MSC(O)32 2/1947- Pelican Robert Jacob, New York 11/1943 13/11/1944 2/1945 to Japan 4/1955 (Ogishima)
YMS442, 2/1947- AMS33, 2/1955- MSC(O)33 2/1947- Plover Hiltebrant, Kingston 10/1943 20/4/1944 10/1944 stricken 10/1968
YMS443, 2/1947- AMS34, 9/1954- AMCU48, 2/1955- MHC48 2/1947- Redhead Hiltebrant, Kingston 10/1943 5/5/1944 11/1944 minehunter 9/1954, stricken 11/1959
YMS444, 9/1947- AMS56, 2/1955- MSC(O)56 9/1947- Turkey Hiltebrant, Kingston 11/1943 20/7/1944 12/1944 stricken 10/1968
YMS445   Hiltebrant, Kingston 3/1944 28/9/1944 3/1945 stricken 3/1947
YMS446, 2/1947- AMS35, 2/1955- AMCU49, 2/1955- MHC49 2/1947- Sanderling Robert Jacob, New York 5/1943 26/2/1944 6/1944 minehunter 2/1955, stricken 11/1959
YMS447   Robert Jacob, New York 6/1943 18/3/1944 6/1944 to Soviet Union 3/1945 (T-181)
YMS448   Robert Jacob, New York 6/1943 27/3/1944 7/1944 to Soviet Union 4/1945 (T-185)
YMS449   South Coast, Newport Beach 6/1943 29/2/1944 7/1944 stricken 7/1946
YMS450   South Coast, Newport Beach 8/1943 15/4/1944 11/1944 // --- commissioned as chaser PCS1399
YMS451   South Coast, Newport Beach 9/1943 20/5/1944 12/1944 // --- commissioned as chaser PCS1400
YMS452   South Coast, Newport Beach 1943 23/6/1944 2/1945 // --- commissioned as chaser PCS1401
YMS453   Greenport Basin 7/1943 2/10/1943 6/1944 to Soviet Union 5/1945 (T-189)
YMS454   Greenport Basin 8/1943 23/10/1943 6/1944 wrecked 9/10/1945, never repaired
YMS455   Greenport Basin 8/1943 13/11/1943 7/1944 to Soviet Union 5/1945 (T-190)
YMS456   Greenport Basin 9/1943 11/12/1943 8/1944 to Soviet Union 5/1945 (T-191)
YMS457   Greenport Basin 11/1943 8/1/1944 9/1944 to Soviet Union 5/1945 (T-182)
YMS458   Greenport Basin 12/1943 12/2/1944 10/1944 stricken 2/1947
YMS459   Greenport Basin 1/1944 8/4/1944 10/1944 stricken 1/1946
YMS460   Stadium, Cleveland 6/1943 4/12/1943 5/1944 to Soviet Union 3/1945 (T-183)
YMS461, 2/1947- AMS36, 2/1955- MSC(O)36 2/1947- Swallow Stadium, Cleveland 6/1943 8/1/1944 6/1944 to Japan 4/1955 (Yugeshima)
YMS462   Hiltebrant, Kingston 4/1943 11/10/1943 6/1944 to Soviet Union 4/1945 (T-184)
YMS463   Hiltebrant, Kingston 5/1943 21/3/1944 7/1944 to South Korea 5/1947 (Kang Nung)
YMS464   Gibbs Gas Engine, Jacksonville 5/1943 9/12/1943 6/1944 to Soviet Union 5/1945 (T-188)
YMS465   Gibbs Gas Engine, Jacksonville 6/1943 4/1/1944 6/1944 to Soviet Union 5/1945 (T-187)
YMS466   Gibbs Gas Engine, Jacksonville 6/1943 22/1/1944 7/1944 to Soviet Union 5/1945 (T-192)
YMS467   Gibbs Gas Engine, Jacksonville 6/1943 22/2/1944 8/1944 stricken 2/1947
YMS468   Gibbs Gas Engine, Jacksonville 6/1943 23/3/1944 8/1944 stricken 2/1948, to Turkey (Kusadasi)
YMS469   Gibbs Gas Engine, Jacksonville 7/1943 17/3/1944 9/1944 to Soviet Union 4/1945 (T-186)
YMS470, 2/1947- AMS37, 2/1955- MSC(O)37 2/1947- Swan Gibbs Gas Engine, Jacksonville 8/1943 5/4/1944 10/1944 stricken 11/1959
YMS471, 3/1947- AMS38, 2/1955- MSC(O)38 3/1947- Verdin Gibbs Gas Engine, Jacksonville 9/1943 23/5/1944 10/1944 stricken 11/1959
YMS472   Gibbs Gas Engine, Jacksonville 9/1943 21/6/1944 11/1944 wrecked 16/9/1945
YMS473   Harbor Boat, Terminal I 5/1943 22/4/1944 8/1944 stricken 6/1946, to South Korea
YMS474   Harbor Boat, Terminal I 5/1943 23/5/1944 12/1944 // --- commissioned as chaser PCS1444
YMS475   San Diego Marine 4/1943 23/5/1944 8/1944 stricken 10/1946
YMS476   San Diego Marine 4/1943 14/6/1944 11/1944 // --- commissioned as chaser PCS1448
YMS477   Tacoma Boat 7/1943 6/11/1943 7/1944 stricken 8/1946
YMS478   Tacoma Boat 9/1943 8/1/1944 8/1944 wrecked 8/10/1945, never repaired
YMS479, 2/1947- AMS39, 2/1955- AMCU50, 2/1955- MHC50 2/1947- Waxbill Mojean & Ericson, Tacoma 4/1943 30/9/1943 7/1944 minehunter 2/1955, stricken 11/1959
YMS480   Bellingham Iron Wks 5/1943 20/11/1943 3/1944 // --- commissioned as degaussing vessel YDG7
YMS481   Bellingham Iron Wks 5/1943 20/11/1943 3/1944 sunk 2/5/1945

 

Displacement standard, t

270

Displacement full, t

320

Length, m

39.6 wl 41.5 oa

Breadth, m

7.47

Draught, m

2.36 full load

No of shafts

2

Machinery

2 diesels

Power, h. p.

800

Max speed, kts

14

Fuel, t

diesel oil
Endurance, nm (kts)

2000 (12)

Armament

1 x 1 - 76/50 Mk 10/19/20/21, 2 x 1 - 20/70 Oerlikon, 2 DCT, 2 DCR, sweeps (inc magnetic and acoustic)

Sensors

presumably SF or SO or SU radar
Complement

60

   

Ship project history: Designing of minesweeper for protection of bases against mine danger was started after occurrence of 105-ft minesweeping boat in Britain. This ship has made good impression upon Americans, first of all by construction simplicity and cheapness. It has been decided to create for the USN the similar ship which can be built in big numbers by practically any small shipbuilder. First time they wished to built minesweeper in hull of 110-ft SC, however from similar thought rejected because of impossibility to place a diesel-generator necessary for magnetic sweep. The hull should be projected anew. For raise of seaworthiness short forecastle was provided. As well as in a case with SC, wood was chosen as construction material for building depreciation.

YMS class minesweepers were sectioned into three practically identical sub-classes, the basic difference between which consisted in number of funnels: on YMS1-134 they were two, on YMS135-445 and 481 one, and on remaining the funnel in general was absent. Britain additionally received 80 minesweepers (BYMS1-80), built specially for RN.

In years of war 20 YMS were lost.

Shortage of submarine chasers on early war stage, has compelled naval chiefs to undertake a number of emergency measures on overcoming of this crisis. The program of building of submarine chasers in hulls of minesweepers of YMS class became one of them. In June, 1942 the order for such 100 ships has followed. It was supposed to increase at the expense of removing of a diesel-generator a stock of fuel and to raise an endurance, to install the second 76mm gun, Hedgehog and increase to 52 DC stowage. However calculations have shown, that in this case the ship was overloaded and works were limited to adding of single 40mm Bofors and Mousetrap launchers.

New chasers were unsuccessful: having 14kts speed and weakest among other ASW ships armament, they were suited for anti-submarine role a little, and the building program was begun to curtail already in the end of 1942. Only 90 ships were really ordered, subsequently building of 31 of them was cancelled Rambler's Top100  

Modernizations: late1944, YMS(C)38, 176, 311, 389, 390: were converted to amphibious command ships: - sweeps

1951, Harkness, James M. Gillis; 1954, Gull, Merganser, Redhead, Sanderling, Waxbill, 1957, Bobolink, Bunting: were converted to minehunters: - 1 x 1 - 20/70, 2 DCT, 2 DCR, sweeps; + sonar, diving equipment

Naval service: YMS133 foundered 20/2/1943 at Coos Bay, Oregon. YMS127 ran aground 10/1/1944 at Aleutian Islands. YMS30 was mined off Anzio 25/1/1944. YMS350 was stricken by mine 2/7/1944 off Normandy coast. YMS304 and YMS378 were mined 30/7/1944 off Normandy coast. YMS24 was mined off St. Tropez 16/8/1944. YMS21 was stricken by a mine off Toulon 1/9/1944. YMS409 foundered during hurricane off Cape Hatteras 12/9/1944. YMS19 was mined in Palau Islands area 24/9/1944. YMS385 was mined off Ulithi, Caroline Islands, 1/10/1944. YMS70 foundered in a storm off Leyte 17/10/1944. YMS14 sunk after collision in Boston Harbor 11/1/1945. YMS48 was damaged by Japanese coastal guns at Corregidor 14/2/1945 and sunk by destroyer Fletcher. YMS71 was mined off Borneo 3/4/1945. YMS103 was mined at Okinawa 8/4/1945, beached and abandoned. YMS481 was sunk by Japanese coastal guns off Tarakan, Borneo, 2/5/1945. YMS50 was mined off Balikpapan 18/6/1945. YMS39 was mined off Balikpapan 26/6/1945. YMS365 was damaged by mine at Balikpapan 26/6/1945 and sunk by American aircraft. YMS84 was mined off Balikpapan 9/7/1945. YMS98, YMS341, YMS421 and YMS472 foundered during typhoon off Okinawa 16/9/1945. YMS478 grounded at Wakanoura, Japan, 8/10/1945. YMS90, YMS146, YMS151, YMS275, YMS383, YMS384, YMS424 and YMS454 were lost at Okinawa during typhoon 9/10/1945. Magpie was stricken by floating mine and sank off Chusan Po, Korea, 1/10/1950. Partridge was mined in Wonsan Harbor (Korea) 2/2/1951. Grouse ran aground at Rockport 21/9/1963 and destroyed by explosives a week later.

 

YMS63 1942

 

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