German submarine U-676

{{Short description|German World War II submarine}}

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{{Infobox ship career

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| Ship country = Nazi Germany

| Ship flag = {{shipboxflag|Nazi Germany|naval}}

| Ship name = U-676

| Ship ordered = 5 June 1941

| Ship builder = Howaldtswerke, Hamburg

| Ship yard number = 825

| Ship laid down = 13 June 1942

| Ship launched = 6 July 1943

| Ship commissioned = 4 August 1943

| Ship homeport =

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| Ship fate = Sunk by mine in the Gulf of Finland after 12 February 1945

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{{Infobox ship characteristics

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| Ship class = Type VIIC submarine

| Ship displacement = *{{convert|769|t|LT|abbr=on|lk=on}} surfaced

  • {{convert|871|t|LT|abbr=on}} submerged

| Ship length = *{{convert|67.10|m|ftin|abbr=on}} (o/a)

| Ship beam = *{{convert|6.20|m|ftin|abbr=on}} (o/a)

  • {{convert|4.70|m|ftin|abbr=on}} (pressure hull)

| Ship height = {{convert|9.60|m|ftin|abbr=on}}

| Ship draught = {{convert|4.74|m|ftin|abbr=on}}

| Ship power = *{{convert|2800|–|3200|PS|kW bhp|abbr=on}} (diesels)

  • {{convert|750|PS|kW shp|abbr=on}} (electric)

| Ship propulsion = *2 shafts

| Ship speed = *{{convert|17.7|kn|lk=in}} surfaced

  • {{convert|7.6|kn}} submerged

| Ship range = *{{convert|8500|nmi|abbr=on|lk=in}} at {{convert|10|kn}} surfaced

  • {{convert|80|nmi|abbr=on}} at {{convert|4|kn}} submerged

| Ship test depth = *{{convert|230|m|ft|abbr=on}}

| Ship complement = 4 officers, 40–56 enlisted

| Ship armament = *5 × torpedo tubes (four bow, one stern)

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{{Infobox service record

|is_ship=yes

|label=Service record

|partof=

|codes=M 54 607

|commanders=*Oblt.z.S. / Kptlt. Werner Sass

  • 4 August 1943 – 12 February 1945

|operations=*2 patrols:

  • 1st patrol:
  • 3 September – 25 October 1944
  • 2nd patrol:
  • 20 January – 12 February 1945

|victories=None

}}

German submarine U-676 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 13 June 1942 at the Howaldtswerke yard at Hamburg, launched on 6 July 1943, and commissioned on 4 August 1943 under the command of Oberleutnant zur See Werner Sass.

Attached to 5th U-boat Flotilla based at Kiel, U-676 completed her training period on 31 August 1944 and was assigned to front-line service.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-676 had a displacement of {{convert|769|t|LT}} when at the surface and {{convert|871|t|LT}} while submerged.{{sfn|Gröner|1991|pp=43-46}} She had a total length of {{convert|67.10|m|ftin|abbr=on}}, a pressure hull length of {{convert|50.50|m|ftin|abbr=on}}, a beam of {{convert|6.20|m|ftin|abbr=on}}, a height of {{convert|9.60|m|ftin|abbr=on}}, and a draught of {{convert|4.74|m|ftin|abbr=on}}. The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of {{convert|2800 to 3200|PS|kW shp|-1}} for use while surfaced, two Siemens-Schuckert GU 343/38–8 double-acting electric motors producing a total of {{convert|750|PS|kW shp}} for use while submerged. She had two shafts and two {{convert|1.23|m|ft|abbr=on|0}} propellers. The boat was capable of operating at depths of up to {{convert|230|m}}.{{sfn|Gröner|1991|pp=43-46}}

The submarine had a maximum surface speed of {{convert|17.7|kn}} and a maximum submerged speed of {{convert|7.6|kn}}.{{sfn|Gröner|1991|pp=43-46}} When submerged, the boat could operate for {{convert|80|nmi}} at {{convert|4|kn}}; when surfaced, she could travel {{convert|8500|nmi}} at {{convert|10|kn}}. U-676 was fitted with five {{convert|53.3|cm|in|0|abbr=on}} torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, two 3.7 cm Flak 18/36/37/43 and two twin 2 cm FlaK 30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.{{sfn|Gröner|1991|pp=43-46}}

Service history

On the second and final patrol, U-676 was last heard of on 12 February 1945 while operating in the Gulf of Finland.{{sfn|Busch|Röll|1999|p=315}} In 2012 the wreck of U-676 was detected in position {{coord|59|30|N|23|0|E|display=inline, title}}. In the vicinity a mine barrage, Vantaa 3, had been laid by the {{ship|Finnish minelayer|Louhi}} and {{ship|Finnish minelayer|Ruotsinsalmi||2}} on 12 January 1945. All 57 crew members perished in the event.{{Cite web

|url=http://uboat.net/boats/u676.html

|title=The Type VIIC boat U-676

|last=Helgason

|first=Guðmundur

|website=German U-boats of WWII - uboat.net

|access-date=23 July 2015

}}

References

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Bibliography

{{Refbegin}}

  • {{cite book | last1 = Busch | first1 = Rainer | last2 = Röll | first2 = Hans-Joachim | translator-last = Brooks | translator-first = Geoffrey | title = German U-boat commanders of World War II: a biographical dictionary | publisher = Greenhill Books, Naval Institute Press | location = London, Annapolis, Md | year = 1999 | isbn = 1-55750-186-6 |ref=none }}
  • {{cite book |last1=Busch |first1=Rainer |last2=Röll |first2=Hans-Joachim |title=Der U-Boot-Krieg, 1939-1945: Deutsche U-Boot-Verluste von September 1939 bis Mai 1945|trans-title=German U-boat losses from September 1939 to May 1945 |date=1999|volume=IV |publisher=Mittler|location=Hamburg, Berlin, Bonn |isbn=3-8132-0514-2 |url=https://books.google.com/books?id=vXKwAAAAIAAJ |language=de}}
  • {{cite book |last1=Gröner |first1=Eric |last2=Jung |first2=Dieter |last3=Maass |first3=Martin |translator-last1=Thomas|translator-first1=Keith|translator-last2=Magowan|translator-first2=Rachel |title=German Warships 1815-1945: U-boats and Mine Warfare Vessels |date=1991 |publisher=Conway Maritime Press |location=London |volume=2 |isbn=0-85177-593-4 |url=https://books.google.com/books?id=Udg-0AEACAAJ|ref=CITEREFGröner1991}}

{{Refend}}