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German submarine U-657: Difference between revisions

Coordinates: 58°54′N 42°33′W / 58.900°N 42.550°W / 58.900; -42.550
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|Ship propulsion=2&nbsp;×&nbsp;[[supercharged]] [[Germaniawerft]] 6-cylinder 4-stroke F46 [[diesel engine]]s, totalling {{convert|2800|-|3200|bhp|abbr=on}}. Max [[rpm]]: 470-490<br/>2&nbsp;×&nbsp;[[Brown, Boveri & Cie|BBC]] GG&nbsp;UB&nbsp;720/8 [[electric motor]]s, totalling {{convert|750|shp|abbr=on}} and max rpm: 296
|Ship propulsion=2&nbsp;×&nbsp;[[supercharged]] [[Germaniawerft]] 6-cylinder 4-stroke F46 [[diesel engine]]s, totalling {{convert|2800|-|3200|bhp|abbr=on}}. Max [[rpm]]: 470-490<br/>2&nbsp;×&nbsp;[[Brown, Boveri & Cie|BBC]] GG&nbsp;UB&nbsp;720/8 [[electric motor]]s, totalling {{convert|750|shp|abbr=on}} and max rpm: 296
|Ship speed={{convert|17.7|kn|lk=in}} surfaced<br/>{{convert|7.6|kn}} submerged
|Ship speed={{convert|17.7|kn|lk=in}} surfaced<br/>{{convert|7.6|kn}} submerged
|Ship range={{convert|8500|nmi|abbr=on|lk=on}} at {{convert|10|kn}} surfaced<br/>{{convert|80|nmi|abbr=on}} at {{convert|4|kn}} submerged
|Ship range={{convert|8,500|nmi|abbr=on|lk=on}} at {{convert|10|kn}} surfaced<br/>{{convert|80|nmi|abbr=on}} at {{convert|4|kn}} submerged
|Ship test depth={{convert|230|m|ft|abbr=on}}<br/>[[Submarine depth ratings|Crush depth]]: {{convert|250|-|295|m|ft|abbr=on}}
|Ship test depth={{convert|230|m|ft|abbr=on}}<br/>[[Submarine depth ratings|Crush depth]]: {{convert|250|-|295|m|ft|abbr=on}}
|Ship complement=44–52 officers & ratings
|Ship complement=44–52 officers & ratings
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}}</ref>
}}</ref>
|partof=[[8th U-boat Flotilla]]<br/>(8 October 1941 - 28 February 1942) - Training<br/>[[3rd U-boat Flotilla]]<br/>(1 March 1942 - 30 June 1942)<br/>[[11th U-boat Flotilla]]<br/>(1 July 1942 - 17 May 1943)
|partof=[[8th U-boat Flotilla]]<br/>(8 October 1941 - 28 February 1942) - Training<br/>[[3rd U-boat Flotilla]]<br/>(1 March 1942 - 30 June 1942)<br/>[[11th U-boat Flotilla]]<br/>(1 July 1942 - 17 May 1943)
|commanders=''Oblt'' Hans-Jürgen Radke<ref>{{cite web|url= http://www.uboat.net/men/commanders/964.html|title=Hans-Jürgen Radke|publisher=Uboat.net|accessdate=21 April 2015}}</ref><br/>(8 October 1941 - 14 December 1941)<br/>''KrvKpt'' Heinrich Göllnitz<ref>{{cite web|url= http://www.uboat.net/men/commanders/365.html|title=Heinrich Göllnitz|publisher=Uboat.net|accessdate=21 April 2015}}</ref><br/>(20 December 1941 - 17 May 1943)
|commanders=''Oblt.z.S.'' Hans-Jürgen Radke<ref>{{cite web|url= http://www.uboat.net/men/commanders/964.html|title=Hans-Jürgen Radke |last=Helgason
|first=Guðmundur
|website=German U-boats of World War II - Uboat.net|accessdate=21 April 2015}}</ref><br/>(8 October 1941 - 14 December 1941)<br/>''KrvKpt'' Heinrich Göllnitz<ref>{{cite web|url= http://www.uboat.net/men/commanders/365.html|title=Heinrich Göllnitz |last=Helgason
|first=Guðmundur
|website=German U-boats of World War II - Uboat.net|accessdate=21 April 2015}}</ref><br/>(20 December 1941 - 17 May 1943)
|operations=1st patrol:<br>26 Mar 1942 - 11 Apr 1942<br>2nd patrol:<br>17 Jun 1942 - 9 Jul 1942<br>3rd patrol:<br>23 Jul 1942 - 16 Aug 1942<br>4th patrol:<br>22 Nov 1942 - 25 Dec 1942<br>5th patrol:<br>23 Jan 1943 - 14 Feb 1943<br>6th patrol:<br>15 Feb 1943 - 15 Mar 1943<br>7th patrol:<br>4 May 1943 - 17 May 1943
|operations=1st patrol:<br />26 March 1942 - 11 April 1942<br />2nd patrol:<br />17 June 1942 - 9 July 1942<br />3rd patrol:<br />23 July 1942 - 16 August 1942<br />4th patrol:<br />22 November 1942 - 25 December 1942<br />5th patrol:<br />23 January 1943 - 14 February 1943<br />6th patrol:<br />15 February 1943 - 15 March 1943<br />7th patrol:<br />4 May 1943 - 17 May 1943
|victories=1 merchant ship sunk ({{GRT|5,196}})
|victories=1 merchant ship sunk ({{GRT|5,196}})
}}
}}
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===Fate===
===Fate===
''U-657'' was sunk on 17 May 1943 in the [[North Atlantic]], E of [[Cape Farewell, Greenland]], in position {{coord|58|54|N|42|33|W|display=inline}}, by depth charges from Royal Navy frigate {{HMS|Swale|K217|6}}. All hands were lost.
''U-657'' was sunk on 17 May 1943 in the [[North Atlantic]], E of [[Cape Farewell, Greenland]], in position {{coord|58|54|N|42|33|W}}, by depth charges from Royal Navy frigate {{HMS|Swale|K217|6}}. All hands were lost.


==Summary of Raiding Career==
==Summary of raiding career==
{| class="wikitable"
{| class="wikitable"
|-
|-
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! width="180px"|Name
! width="180px"|Name
! width="160px"|Nationality
! width="160px"|Nationality
! width="25px" |Tonnage<br/>(GRT)
! width="25px" |Tonnage<br />([[Gross register tonnage|GRT]])
! width="80px" |Fate<ref>{{cite web
! width="80px" |Fate<ref>{{cite web
|url=http://uboat.net/boats/successes/u657.html
|url=http://uboat.net/boats/successes/u657.html

Revision as of 16:06, 29 April 2015

History
Nazi Germany
NameU-657
Ordered9 October 1939
BuilderHowaldtswerke, Hamburg
Yard number806
Laid down5 October 1940
Launched12 August 1941
Commissioned8 October 1941
FateSunk 17 May 1943 in the North Atlantic in position 58°54′N 42°33′W / 58.900°N 42.550°W / 58.900; -42.550, by depth charges from HMS Swale.
General characteristics [1]
Class and typeType VIIC submarine
Displacementlist error: <br /> list (help)
769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Lengthlist error: <br /> list (help)
67.1 m (220 ft 2 in) o/a
50.5 m (165 ft 8 in) pressure hull
Beamlist error: <br /> list (help)
6.2 m (20 ft 4 in) o/a
4.7 m (15 ft 5 in) pressure hull
Draft4.74 m (15 ft 7 in)
Propulsionlist error: <br /> list (help)
2 × supercharged Germaniawerft 6-cylinder 4-stroke F46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490
2 × BBC GG UB 720/8 electric motors, totalling 750 shp (560 kW) and max rpm: 296
Speedlist error: <br /> list (help)
17.7 knots (32.8 km/h; 20.4 mph) surfaced
7.6 knots (14.1 km/h; 8.7 mph) submerged
Rangelist error: <br /> list (help)
8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced
80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depthlist error: <br /> list (help)
230 m (750 ft)
Crush depth: 250–295 m (820–968 ft)
Complement44–52 officers & ratings
Armamentlist error: mixed text and list (help)
Service record[2]
Part of: list error: <br /> list (help)
8th U-boat Flotilla
(8 October 1941 - 28 February 1942) - Training
3rd U-boat Flotilla
(1 March 1942 - 30 June 1942)
11th U-boat Flotilla
(1 July 1942 - 17 May 1943)
Commanders: list error: <br /> list (help)
Oblt.z.S. Hans-Jürgen Radke[3]
(8 October 1941 - 14 December 1941)
KrvKpt Heinrich Göllnitz[4]
(20 December 1941 - 17 May 1943)
Operations: list error: <br /> list (help)
1st patrol:
26 March 1942 - 11 April 1942
2nd patrol:
17 June 1942 - 9 July 1942
3rd patrol:
23 July 1942 - 16 August 1942
4th patrol:
22 November 1942 - 25 December 1942
5th patrol:
23 January 1943 - 14 February 1943
6th patrol:
15 February 1943 - 15 March 1943
7th patrol:
4 May 1943 - 17 May 1943
Victories: 1 merchant ship sunk (5,196 GRT)

German submarine U-657 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 5 October 1940 by Howaldtswerke, Hamburg as yard number 806, launched on 12 August 1941 and commissioned on 8 October 1941 under Oberleutnant zur See Hans-Jürgen Radke.

Radke was killed in a fire while the boat was undergoing trials on 14 December 1941.

Service History

The boat's career began with training at 8th U-boat Flotilla on 8 October 1941, followed by active service on 1 March 1942 as part of the 3rd Flotilla in La Pallice, France. Four months later, she transferred to 11th Flotilla, in Bergen, Norway, for the remainder of her service.

In 7 patrols she sank 1 merchant ships, for a total of 5,196 gross register tons (GRT).

Wolfpacks

U-657 took part in in six wolfpacks, namely

  • Naseweis (31 March 1942 – 10 April 1942)
  • Eisteufel (21 June 1942 – 8 July 1942)
  • Nebelkönig (27 July 1942 – 14 August 1942)
  • Nordwind (24 January 1943 – 4 February 1943)
  • Iller (12 May 1943 – 15 May 1943)
  • Donau 1 (15 May 1943 – 17 May 1943)

Fate

U-657 was sunk on 17 May 1943 in the North Atlantic, E of Cape Farewell, Greenland, in position 58°54′N 42°33′W / 58.900°N 42.550°W / 58.900; -42.550, by depth charges from Royal Navy frigate HMS Swale. All hands were lost.

Summary of raiding career

Date Name Nationality Tonnage
(GRT) 		Fate[5]
17 May 1943 Aymeric  United Kingdom 5,196 Sunk

References

  1. ^ Gröner 1985, pp. 72–74.
  2. ^ Helgason, Guðmundur. "The Type VIIC boat U-657". German U-boats of WWII - uboat.net. Retrieved 1 September 2014.
  3. ^ Helgason, Guðmundur. "Hans-Jürgen Radke". German U-boats of World War II - Uboat.net. Retrieved 21 April 2015.
  4. ^ Helgason, Guðmundur. "Heinrich Göllnitz". German U-boats of World War II - Uboat.net. Retrieved 21 April 2015.
  5. ^ Helgason, Guðmundur. "Ships hit by U-657". German U-boats of WWII - uboat.net. Retrieved 1 September 2014.

Bibliography

  • Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2. {{cite book}}: |work= ignored (help); Invalid |ref=harv (help)
  • Gröner, Erich (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher (in German). Vol. III. Koblenz: Bernard & Graefe. ISBN 3-7637-4802-4. {{cite book}}: |work= ignored (help); Invalid |ref=harv (help)
  • Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.

Warning: Display title "German submarine<i> U-657</i>" overrides earlier display title "German submarine <i>U-657</i>" (help).

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