YMS-1-class minesweeper: Difference between revisions

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{{Short description|1942 class of American minesweepers}}

{{Use dmy dates|date=NovemberOctober 20122021}}

{|{{Infobox ship begin}}

{{Infobox ship image

| Ship image = [[File:Yms324.png|300px|USS YMS-324 in San Francisco Bay, c. 1945–46]]

| Ship caption = {{USS|YMS-324}} in [[San Francisco Bay]], c. 1945–46

}}

{{Infobox ship class overview

| Name = ''YMS-1''

| Builders = 35 yacht builders<ref name=navsrcYMSidx>{{cite web | first = Gary P. | last = Priolo | url = http://www.navsource.orgnet/archives/11/19idx.htm | title = Auxiliary Motor Minesweeper (YMS), British Motor Minesweeper (BYMS) Index | work website= NavSource Online | publisher = NavSource Naval History | year = 2006 | access-date = 2007-12-20 }}</ref>

| Operators = *{{navynaval|USUnited States}}

*{{navy|UKUnited Kingdom}}

*{{navy|France}}

*{{navy|Canada|name=Maritime Command}}

*{{navy|Poland}}

|Class before=

*{{navy|Japan}}

|Class after=

*{{navy|South Vietnam}}

|Subclasses=''YMS-136'', ''YMS-446''

| Class before =

|Cost=

| Class after = {{sclass|Atada|minesweeper|4}} (Japan)

|Built range=

| Subclasses = ''YMS-136'', ''YMS-446''

|In service range=

| Cost =

|In commission range=about March 1942<ref name=navsrcYMSidx/> - 13 December 1957<ref name=navsrcYMS327>{{cite web | first = Joseph M. | last = Radigan | url = http://www.navsource.org/archives/11/19327.htm | title = Ruff (MSC<nowiki>[</nowiki>O<nowiki>]</nowiki> 54), ex-AMS-54, ex-YMS-327 | work = NavSource Online | publisher = NavSource Naval History | year = 2006 | access-date = 2007-12-20 }}</ref>

| Built range =

|Total ships building=

| In service range= =

|Total ships planned=

| In commission range = about March 1942<ref name=navsrcYMSidx/> -– 13 December 1957<ref name=navsrcYMS327>{{cite web | first = Joseph M. | last = Radigan | url = http://www.navsource.orgnet/archives/11/19327.htm | title = Ruff (MSC<nowiki>[</nowiki>O<nowiki>]</nowiki> 54), ex-AMS-54, ex-YMS-327 | work website= NavSource Online | publisher = NavSource Naval History | year = 2006 | access-date = 2007-12-20 }}</ref>

|Total ships completed=481<ref name=navsrcYMSidx/>

| Total ships cancelled=''YMS-482''building –= ''YMS-500''

| Total ships activeplanned =0

| Total ships laidcompleted = 481<ref upname=navsrcYMSidx/>

| Total ships cancelled = ''YMS-482'' – ''YMS-500''
| Total ships active = 0
| Total ships laid up =
| Total ships lost = 32<ref>For both ''YMS-1'' and BYMS classes a total 40 were lost. Of those 40, 32 were ''YMS-1'' class. (See: {{cite web | url= http://uboat.net/allies/warships/class.html?ID=477 | title = YMS class Minesweepers | work = Uboat.net | access-date = 2007-12-20 }})</ref>

| Total ships retired =

| Total ships preserved =

}}

{{Infobox ship characteristics

| Hide header =

| Header caption =

| Ship class =

| Ship type = [[Minesweeper]]

| Ship tonnage =

| Ship displacement = 270 tons

| Ship draftlength = {{convert|8136|ft|m|abbr=on}}

|Ship tons burthen=

| Ship lengthbeam = {{convert|13624|ft|6|in|m|abbr=on}}

| Ship height =

| Ship beamdraft = {{convert|248|ft|6|in|m|abbr=on}}

|Ship height=

| Ship power =

|Ship draft={{convert|8|ft|m|abbr=on}}

| Ship propulsion = *2 × {{convert|880440|bhp|lk=in|abbr=on}} [[General Motors]] [[8-268A]] [[diesel engines]]

|Ship power=

|Ship propulsion=*2 × {{convert|880|bhp|lk=in|abbr=on}} [[General Motors]] [[8-268A]] [[diesel engines]]

*2 shafts

| Ship speed = {{convert|15|kn|km/h}}

| Ship rangecomplement = 32

| Ship armament = *1 × [[3"-inch/50 -caliber gun|3-inch/50 caliber]] [[gun mount]]

|Ship complement=32

|Ship crew=

|Ship time to activate=

|Ship sensors=

|Ship EW=

|Ship armament=*1 × [[3"/50 caliber gun|3-inch/50 caliber]] [[gun mount]]

*2 × [[Oerlikon 20 mm cannon|20&nbsp;mm guns]]

*2 × [[depth charge projector]]s

|Ship armor=

|Ship aircraft=

|Ship aircraft facilities=

|Ship notes=

}}

|}

The '''''YMS-1'' class''' of '''[[auxiliary motor minesweepers]]''' was established with the laying down of ''YMS-1'' on 4 March 1941. Some were later transferred to the United Kingdom as part of the [[Second World War II]] [[Lend-Lease]] pact between the two nations. One ship eventually made its way into the [[Royal Canadian Navy]] postwar.

==Design==

The design for the class had a displacement of 270 tonnes. The ships had a length of {{convert|136|ft|m}}, a [[Beam (nautical)|beam]] of {{convert|24|ft|6|in|m|abbr=on}}, and a [[Draft (hull)|draft]] of {{convert|8|ft|m|abbr=on}}. The vessels were capable of {{convert|15|kn|lk=in}}, being powered by two {{convert|440|shp|lk=in|abbr=on}} [[General Motors]] (Cleveland) 8-268A, 2-cycle [[diesel engines]] which drove two shafts.

The ships had a complement of 32. Their armament comprised one single [[3"-inch/50 -caliber gun|3-inch/50 caliber]] gun mount, two [[Oerlikon 20 mm cannon|20 mm]] [[anti-air warfare|anti-aircraft]] guns and two [[depth charge projector]]s.

''YMS-1''-class ships were relatively small compared to larger contemporary [[US Navy]] ships. This led to a view by some sailors that the YMS-designated ships were cramped and particularly unsteady. These conditions were described (and surely exaggerated) by one author in a humorous poem "warning" other sailors to not transfer:

{{poem quote|text=Men don't live on YMS's

they just exist under strains and stresses,

tossed around like a bundle of peas,

inside their ship on the calmest seas.|sign=Anonymous|title="A Plug for a Distinguished Nervuos Cross"<ref name=navsrcYMSidx />}}

==Subclasses==

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===''YMS-135'' subclass===

This subclass was identical but had only one stack rather than two, and consisted of hull numbers ''YMS-135'', through ''YMS-445'', ''YMS-480'', and ''YMS-481''.

===''YMS-446'' subclass===

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===BYMS===

Eighty vessels of the class were ordered from US yards for transfer under [[Lend-Lease]] to the United Kingdom as the [[BYMS-class minesweeper]]. Another 53 built for the US Navy (with hull numbers between ''YMS-137'' toand ''-284'') were transferred as further BYMS and another 17 were delivered later.

===Other exports===

France received 31 YMS-class minesweepers during World War 2, with one (''D202'', formerly {{USS|YMS-77||2}}) being sunk by a mine in 1944. France kept its YMS-class ships in service after the end of the war,<ref name="massv2 p59,61-3">Masson 1969, pp. 59, 61–53.</ref> with seven remaining in service in 1962, used as training ships in the [[École Navale]] and as experimental vessels. Three ships of the class were transferred from France to [[South Vietnam]] in 1954, while another was transferred to [[Madagascar]] in 1961.<ref name="jfs62 p94">Blackman 1962, p. 94.</ref>

In 1947, Poland acquired former BYMS-2211 (renamed ORP Delfin), BYMS-2257 (renamed ORP Foka), and [[HMS BYMS-2282|BYMS-2282]] (renamed [[ORP Mors]]). <ref>{{cite magazine |last=Twardowski |first=Marek |date=June 2001 |title=Trałowce typu BYMS w polskiej służbie |trans-title=BYMS minesweepers in Polish service |url= |magazine=Morza, Statki i Okręty |language=Polish |___location= |publisher= |publication-date=June 2001 |volume=VI |issue=31 |issn=1426-529X |access-date=}}</ref> The vessels were re-armed with Soviet [[85 mm air defense gun M1939 (52-K)]] and four Soviet [[NSV machine gun|NSV machine guns]]. In the mid-1950s, they were removed from service. The ORP Delfin was scuttled in the Bay of Puck, where it remains a diving attraction.

The [[Japan Maritime Self-Defense Force]] received 8 vessels of this class in the 1950s. The class was named ''Ujishima''-class minesweeper. The ships were:

* [[USS Condor (AMS-5)|JDS Ujishima (MSC-655)]]

* [[JDS Etajima (MSC-656)]]

* [[JDS Nuwajima (MSC-657)]]

* [[JDS Yakushima (MSC-658)]]

* [[JDS Ogishima (MSC-659)]]

* [[JDS Yugeshima (MSC-660)]]

* [[JDS Yurishima (MSC-661)]]

* [[JDS Ninoshima (MSC-662)]]

==Examples==

Line 141 ⟶ 154:

*{{ship|RV|Calypso}}, research ship

*{{ship|MV|Uchuck III}}, Merchant vessel, USS YMS-123

== See also==

*[[Wooden boats of World War II]]

*[[List of mine warfare vessels of the United States Navy#Auxiliary Motor Mine Sweepers (YMS)|List of mine warfare vessels of the United States Navy § Auxiliary Motor Mine Sweepers (YMS)]]

== References ==

{{reflist|30em}}

* {{DANFS}}

*{{cite book|last=Blackman|first=Raymond V. B.|title=Jane's Fighting Ships 1962–63|year=1962|publisher=Sampson Low, Marston & Co. Ltd|___location=London}}

*{{cite book| last=Le Masson|first=Henri |title=Navies of the Second World War: The French Navy Volume Two|year=1969|publisher=Macdonald & Co. |___location=London}}

* {{cite web | first = Gary P. | last = Priolo | url = http://www.navsource.orgnet/archives/11/19idx.htm | title = Auxiliary Motor Minesweeper (YMS), British Motor Minesweeper (BYMS) Index | work website= NavSource Online | publisher = NavSource Naval History | year = 2006 | access-date = 2007-12-19 }}

==External links==

* [https://web.archive.org/web/20011005083318/http://www.history.navy.mil/danfs/#Anchor-Editoria-14954 Dictionary of American Naval Fighting Ships]

* [http://www.navsource.orgnet/archives/11/19001.htm NavSource Online: Mine Warfare Vessel Photo Archive -– YMS-1]

<!-- Bobbers with Tails is an fictionalized account of life aboard a US Navy YMS in the South Pacific during World War II by Dwight Emrick who served as an Ensign on YMS 313. The book is available on ebay. -->

{{US Navy navbox}}

{{YMS-1 class minesweepers}}

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[[Category:YMS-1-class minesweepers| ]]