View source for SM UC-57

{{other ships|German submarine U-57}}
{|{{Infobox ship begin}}
{{Infobox ship image
|Ship image=[[File:Hamnskar monument.jpg|300px|Memorial of SM UC-57.]]
|Ship caption= ''UC-57'''s memorial; Major Nordström lay the Jäger association's wreath in 1934
}}
{{Infobox ship career
|Ship country=[[German Empire]]
|Ship flag={{Shipboxflag|German Empire|naval}}
|Ship name=''UC-57''
|Ship ordered=12 January 1916<ref name=UC-57>{{cite Uboat.net
|name=UC 57
|id=UC+57
|type=1sub
|accessdate=23 February 2009
}}</ref>
|Ship builder=[[Kaiserliche Werft Danzig|Kaiserliche Werft]], [[Danzig]]<ref name=Tarrant-173>Tarrant, p. 173.</ref>
|Ship yard number=39<ref name=UC-57 />
|Ship laid down=14 March 1916<ref name=UC-57 />
|Ship launched=7 September 1916<ref name=UC-57 />
|Ship commissioned=22 January 1917<ref name=UC-57 />
|Ship decommissioned=
|Ship struck=
|Ship fate=Disappeared after 18 November 1917; probably sunk by mine in [[Gulf of Finland]]<ref name=UC-57 />
|Ship notes=
}}
{{Infobox ship characteristics
|Header caption={{sfn|Gröner|1991|pp=31-32}}
|Ship class=[[Type UC II submarine]]
|Ship displacement=
*{{convert|415|t|LT|abbr=on|lk=on}}, surfaced
*{{convert|498|t|LT|abbr=on}}, submerged
|Ship length=
*{{convert|52.69|m|ftin|abbr=on}} [[o/a]]
*{{convert|40.96|m|ftin|abbr=on}} [[pressure hull]]
|Ship beam=
*{{convert|5.22|m|ftin|abbr=on}} o/a
*{{convert|3.65|m|ft|0|abbr=on}} pressure hull
|Ship draught={{convert|3.61|m|ftin|abbr=on}}
|Ship propulsion=
*2 × [[propeller shaft (ship)|propeller shafts]]
*2 × 6-cylinder, 4-stroke [[diesel engine]]s, {{convert|580|-|600|PS|kW shp|abbr=on}}
*2 × [[electric motor]]s, {{convert|620|PS|kW shp|abbr=on}}
|Ship speed=
*{{convert|11.6|kn}}, surfaced
*{{convert|7.3|kn}}, submerged
|Ship range=
*{{convert|8,660|-|9,450|nmi|abbr=on|lk=in}} at {{convert|7|kn}} surfaced
*{{convert|52|nmi|abbr=on}} at {{convert|4|kn}} submerged
|Ship test depth={{convert|50|m|ft|abbr=on}}
|Ship complement=26
|Ship armament=
*6 × {{convert|100|cm|in|1|abbr=on}} mine tubes
*18 × UC 200 [[naval mine|mines]]
*3 × {{convert|50|cm|in|1|abbr=on}} [[torpedo tube]]s (2 bow/external; one stern)
*7 × [[torpedo]]es
*1 × [[8.8 cm SK L/30 naval gun|{{convert|8.8|cm|in|sp=us|abbr=on}} Uk L/30]] [[deck gun]]
|Ship notes=30-second diving time
}}
{{Infobox service record
|is_ship=yes
|is_multi=yes
|partof=*Baltic Flotilla
*6 May – 18 November 1917
|commanders=*''Kptlt.'' Friedrich Wißmann<ref>{{cite Uboat.net
|id=413
|name=Friedrich Wißmann
|type=1comm
|accessdate=2 March 2015
}}</ref>
*22 January – 18 November 1917
|operations=7 patrols
|victories=
*5 merchant ships sunk <br>({{GRT|271}})
*2 merchant ships taken as prize <br>({{GRT|3,863}})
}}
|}
'''SM ''UC-57'''''{{#tag:ref|"SM" stands for "Seiner Majestät" ({{langx|en|His Majesty's}}) and combined with the ''U'' for ''Unterseeboot'' would be translated as ''His Majesty's Submarine''.|group=Note}} was a German [[Type UC II submarine|Type UC II]] [[minelayer|minelaying]] [[submarine]] or [[U-boat]] in the [[German Imperial Navy]] ({{langx|de|Kaiserliche Marine}}) during [[World War I]]. The U-boat was ordered on 12 January 1916, [[keel laying|laid down]] on 14 March 1916, and was [[Ceremonial ship launching|launch]]ed on 7 September 1916. She was [[Ship commissioning|commission]]ed into the German Imperial Navy on 22 January 1917 as SM ''UC-57''. In seven patrols ''UC-57'' was credited with sinking 5 ships, either by torpedo or by [[naval mines|mines]] laid.
''UC-57'' disappeared in 1917 after landing a party of Finnish [[Jäger Movement|Jägers]] and 4 tons of munitions on the island of Hamnskär, circa {{convert|30|km|mi}} from [[Loviisa]], on 18 November. ''UC-57'' was going to remain on the seabed overnight and then return to Germany but never arrived. She was probably sunk by a Russian mine.<ref name=UC-57 />
==Design==
A [[Type UC II submarine]], ''UC-57'' had a displacement of {{convert|415|t|LT}} when at the surface and {{convert|498|t|LT}} while submerged. She had a [[length overall]] of {{convert|50.52|m|ftin|abbr=on}}, a [[beam (ship)|beam]] of {{convert|5.22|m|ftin|abbr=on}}, and a [[draught (ship)|draught]] of {{convert|3.61|m|ftin|abbr=on}}. The submarine was powered by two six-cylinder four-stroke diesel engines each producing {{convert|290|-|300|PS|kW shp}} (a total of {{convert|580|-|600|PS|kW shp}}), two [[electric motor]]s producing {{convert|620|PS|kW shp}}, and two [[propeller shaft]]s. She had a dive time of 48 seconds and was capable of operating at a depth of {{convert|50|m}}.
The submarine had a maximum surface speed of {{convert|11.6|kn}} and a submerged speed of {{convert|7.3|kn}}. When submerged, she could operate for {{convert|52|nmi}} at {{convert|4|kn}}; when surfaced, she could travel {{convert|8660 to 9450|nmi}} at {{convert|7|kn}}. ''UC-57'' was fitted with six {{convert|100|cm}} mine tubes, eighteen UC 200 mines, three {{convert|50|cm}} [[torpedo tube]]s (one on the stern and two on the bow), seven torpedoes, and one [[8.8 cm SK L/30 naval gun|{{convert|8.8|cm|in|sp=us|abbr=on}} Uk L/30]] [[deck gun]]. Her [[Ship's company|complement]] was twenty-six crew members.
==Summary of raiding history==
{| class="wikitable sortable"
|-
! width="140px"|Date
! width="140px"|Name
! width="160px"|Nationality
! width="25px" |Tonnage<ref group=Note name=tonnage>Tonnages are in [[gross register tons]]</ref>
! width="160px"|Fate<ref>{{cite Uboat.net
|id=uc57
|name=UC 57
|type=1boat
|accessdate=2 March 2015
}}</ref>
|-
|align="right"|9 June 1917
|align="left" |[[List of shipwrecks in June 1917#9 June|''Ludvig'']]
|align="left" |{{flag|Sweden}}
|align="right"|78
|align="left" |Sunk
|-
|align="right"|20 June 1917
|align="left" |[[List of shipwrecks in June 1917#20 June|''Penpol'']]
|align="left" |{{flag|United Kingdom|civil}}
|align="right"|2,061
|align="left" |Captured as prize
|-
|align="right"|24 June 1917
|align="left" |[[List of shipwrecks in June 1917#24 June|''Meggie'']]
|align="left" |{{flag|United Kingdom|civil}}
|align="right"|1,802
|align="left" |Captured as prize
|-
|align="right"|26 June 1917
|align="left" |[[List of shipwrecks in June 1917#26 June|''Marie'']]
|align="left" |{{flag|Russian Empire}}
|align="right"|87
|align="left" |Sunk
|-
|align="right"|26 June 1917
|align="left" |[[List of shipwrecks in June 1917#26 June|''Tervo'']]
|align="left" |{{flag|Russian Empire}}
|align="right"|58
|align="left" |Sunk
|-
|align="right"|26 June 1917
|align="left" |[[List of shipwrecks in June 1917#26 June|''Georg'']]
|align="left" |{{flag|Russian Empire}}
|align="right"|18
|align="left" |Sunk
|-
|align="right"|26 June 1917
|align="left" |[[List of shipwrecks in June 1917#26 June|''Martinniemi'']]
|align="left" |{{flag|Russian Empire}}
|align="right"|30
|align="left" |Sunk
|}
==References==
===Notes===
{{Reflist|group=Note}}
===Citations===
{{Reflist|colwidth=30em}}
===Bibliography===
{{refbegin}}
*{{cite book
|first=Harald
|last=Bendert
|title=Die UC-Boote der Kaiserlichen Marine 1914-1918. Minenkrieg mit U-Booten
|publisher=Mittler
|year=2001
|location=Hamburg, Berlin, Bonn
|isbn=3-8132-0758-7
|language=German
}}
*{{cite book
|last1=Gröner
|first1=Erich
|last2=Jung
|first2=Dieter
|last3=Maass
|first3=Martin
|translator-last1=Thomas
|translator-first1=Keith
|translator-last2=Magowan
|translator-first2=Rachel
|year=1991
|title=U-boats and Mine Warfare Vessels
|volume=2
|series=German Warships 1815–1945
|location=London
|publisher=Conway Maritime Press
|isbn=0-85177-593-4
|ref=CITEREFGröner1991
}}
* {{cite book | editor1-last=Gardiner | editor1-first=Robert | editor2-last=Gray | editor2-first=Randal | title = Conway's All the World's Fighting Ships 1906–1921 | location = [[Annapolis, Maryland]] | publisher = [[Naval Institute Press]] | year = 1985 | isbn = 978-0-87021-907-8 | oclc = 12119866 }}
* {{cite book | last = Tarrant | first = V. E. | title = The U-Boat Offensive: 1914–1945 | location = Annapolis, Maryland | publisher = Naval Institute Press | year = 1989 | isbn = 978-0-87021-764-7 | oclc = 20338385 }}
{{Refend}}
{{German Type UC II submarines}}
{{November 1917 shipwrecks}}
{{coord|59|00|N|23|00|E|display=title}}
{{DEFAULTSORT:Uc057}}
[[Category:Ships built in Danzig]]
[[Category:German Type UC II submarines]]
[[Category:U-boats commissioned in 1917]]
[[Category:Maritime incidents in 1917]]
[[Category:U-boats sunk in 1917]]
[[Category:U-boats sunk by mines]]
[[Category:World War I minelayers of Germany]]
[[Category:World War I shipwrecks in the Baltic Sea]]
[[Category:World War I submarines of Germany]]
[[Category:1916 ships]]
[[Category:Submarines lost with all hands]]