German submarine U-756

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

{{Infobox ship begin}}

{{Infobox ship image

|Ship image=

|Ship caption=

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{{Infobox ship career

|Ship country=Nazi Germany

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

|Ship name=U-756

|Ship ordered=9 October 1939{{cite web

|url=http://uboat.net/boats/u756.htm

|title=The Type VIIC boat U-756

|last=Helgason

|first=Guðmundur

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

}}

|Ship yard number=139

|Ship laid down=18 January 1940

|Ship builder=Kriegsmarinewerft Wilhelmshaven

|Ship launched=18 October 1941

|Ship commissioned=30 December 1941

|Ship fate=Sunk on 1 September 1942

}}

{{Infobox ship characteristics

|Hide header=

|Header caption=

|Ship class=Type VIIC submarine

|Ship displacement=

  • {{convert|769|t|LT|0|lk=on}} surfaced
  • {{convert|871|t|LT|0|abbr=on}} submerged

|Ship length=

  • {{convert|67.10|m|ftin|abbr=on}} o/a
  • {{convert|50.50|m|ftin|abbr=on}} pressure hull

|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=

|Ship speed=

  • {{convert|17.7|kn}} surfaced
  • {{convert|7.6|kn}} submerged

|Ship range=

  • {{convert|8,500|nmi|abbr=on|lk=on}} at {{convert|10|kn}} surfaced
  • {{convert|80|nmi|abbr=on}} at {{convert|4|kn}} submerged

|Ship test depth=

  • {{convert|230|m|ft|abbr=on}}
  • Crush depth: {{convert|250|–|295|m|ft|abbr=on}}

|Ship complement=4 officers, 40–56 enlisted

|Ship sensors=

|Ship EW=

|Ship armament=

|Ship notes=

}}

{{Infobox service record

|is_ship=yes

|partof=

|codes=M 39 246

|commanders=

|operations=*1 patrol:

  • 15 August – 1 September 1942

|victories=None

}}

German submarine U-756 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. Laid down as yard number 139 at the Kriegsmarinewerft (KMW) in Wilhelmshaven, she served with 6th U-boat flotilla from 30 December 1941 until 1 September 1942 under the command of Kapitänleutnant Klaus Harney. U-756 did not survive to complete her first patrol and did not sink or damage any ships.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-756 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 Garbe, Lahmeyer & Co. RP 137/c 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-756 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, one 8.8 cm SK C/35 naval gun, 220 rounds, and a 2 cm FlaK 30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.{{sfn|Gröner|1991|pp=43-46}}

Fate

Eighteen days into her first patrol,{{cite web

|url=http://uboat.net/boats/patrols/u756.html

|title=War Patrols by German U-boat U-756

|last=Helgason

|first=Guðmundur

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

|access-date=29 December 2014

}} on 1 September 1942 U-756 was in position {{coord|58|08|N|27|33|W|display=inline,title}} in the mid North-Atlantic{{cite web

|url=http://uboat.net/boats/patrols/patrol_2385.html

|title=Patrol of German U-boat U-756 from 15 August 1942 to 1 September 1942

|last=Helgason

|first=Guðmundur

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

|access-date=29 December 2014

}} when she was attacked by the Canadian corvette {{HMCS|Morden|K170|6}}. Heavily damaged, the vessel went down with all 43 aboard.

References

{{reflist|30em}}

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 }}
  • {{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|last=Edwards|first=Bernard|title=Dönitz and the Wolf Packs - The U-boats at War|year=1996|url=https://books.google.com/books?id=ZptqQgAACAAJ|publisher=Cassell|isbn=0-304-35203-9|pages=103, 105|ref={{sfnRef|Edwards}}}}
  • {{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}}