SM UC 4

SM UC 4 ( all submarines )
Type :	UC I
Shipyard:	AG Vulcan , Hamburg
Build number:	48
Launch:	June 06, 1915
Commissioning:	June 10, 1915
Commanders:	Oblt.zS Karl Vesper (June 10, 1915 - December 28, 1915) Oblt.zS Friedrich Moecke (December 29, 1915 - March 19, 1916) Oblt.zS Ulrich Pilzecker (August 16, 1916 - September 14, 1916) Oblt.zS Gustav Buch (September 15, 1916 - October 20, 1916) Oblt.zS Hans Howaldt (October 21, 1916 - November 26, 1916) Oblt.zS Georg Reimarus (November 27, 1916 - March 11, 1917) Oblt.zS Oskar Steckelberg (May 12, 1917 - May 20, 1917) Oblt.zS Georg Reimarus (May 21, 1917 - May 29, 1917) Oblt.zS Erich Hecht (May 30, 1917 - September 12, 1917) Oblt.zS Walter Schmitz (September 13, 1917 - January 19, 1918) Oblt.zS Kurt Loch (January 20, 1918 - February 26, 1918) Oblt.zS Ernst Berlin (February 27, 1918 - April 21, 1918) Oblt.zS Eberhard Schmidt (April 22, 1918 - October 2, 1918)
Flotilla:	U-Half Flotilla Kurland, Libau (July 1915 - December 1915) U-Flotilla Flanders I (January 1916 - April 1916) U-Half Flotilla V, Libau (May 1916 - August 1916) U-Flotilla Flanders I (September 1916 - October 1918)
Calls:	73 patrols
Sinkings:	33 (plus 3 unclear sinkings), of which 14 (+2) warships and 19 (+1) merchant ships
Whereabouts:	Blown up at the pier at Seebrugge

SM UC 4 was a submarine of the Imperial Navy of type UC , which in the First World War was used. As a mine legend submarine, UC 4 helped set up the mine barriers in the North Sea. The mines that UC 4 laid on their 73 patrols sank at least 33 ships with 46,214 GRT

Calls

The UC 4 was mainly used at the mine barriers in the North Sea.

German and English mine barriers in the North Sea 1914 to 1918

• 01. Company 02.08. until August 6, 1915 - Gulf of Finland
• 02. Company 11.08. until August 16, 1915 - Utö
• 03. Company 11.09. until 16.09.1915 - Moon Sund
• 04. Company 01.11. until 04.11.1915 - archipelago northeast of Utö
• Overhaul in Kiel and relocation to the North Sea
• 05. Company 03.02. until 04.02.1916 - transfer to Flanders
• 06. Company 09.02. until 02/11/1916 - east coast of England
• 07. Company 02.26. until 02/27/1916 - The Downs
• 08. Company 03.03. to 03.05.1916 - Thames Estuary
• 09. Company 11.03. until March 13, 1916 - The Downs
• 10. Company 15.03. until March 19, 1916 - transfer to Kiel
• 11th company 05/30 until June 2nd, 1916 - Bay of Riga
• 12. Company 18.08. until 08/25/1916 - Moon Sund
• 13th company 08/30 until 03.09.1916 - Åland Sea
• 14th company 25.09. until 30.09.1916 - transfer to Flanders
• 15. Company 17.10. until October 20, 1916 - east coast of England
• 16. Company 24.10. until October 26th, 1916 - east coast of England
• 17th company 04.11. until November 9th, 1916 - east coast of England, Lowestoft
• 18. Company 23.11. until 11/25/1916 - Orford Ness
• 19th company 01.12. until 04.12.1916 - Galloper Sand
• 20th company 07.12. until December 10, 1916 - Orford Ness
• 21. Company 14.12. until December 17, 1916 - English east coast, Lowestoft
• 22. Company 27.12. until 01.01.1917 - east coast of England
• 23rd company 04.12. until 07.01.1917 - east coast of England
• 24. Company 15.01. until 1/16/1917 - east coast of England, North Yorkshire
• 25th company 22.01. until January 24th, 1917 - English east coast, Yarmouth
• 26. Company 31.01. until 02/02/1917 - east coast of England, Oxford Ness
• 27. Company 10.02. until February 13, 1917 - Sizewell Bank
• 28th company 17.02. until 20.02.1917 - English east coast, Shipwash lightship
• 29th company 02/24 until 03/01/1917 - east coast of England, North Yorkshire
• 30. Company 09.03. to 11.03.1917 - English east coast, Aldeburgh Napes
• 31. Company 22.03. until March 25, 1917 - east coast of England
• 32nd company 28.03. until April 1st, 1917 - east coast of England
• 33rd company 04.04. until 04/11/1917 - east coast of England, Oxfordness
• 34th company 15.04. until April 21, 1917 - English east coast, Aldeburgh Napes
• 35th company 25.04. until May 2nd, 1917 - east coast of England, Sizewell Bank
• 36th company 08.05. until May 11, 1917 - east coast of England, Shipwash lightship
• 37th company 17.05. until May 20th, 1917 - east coast of England, Great Yarnmouth
• 38th company 25.05. bia 05/26/1917 - English east coast, Aldeburgh Napes
• 39th company 02.06. until 03.06.1917 - English east coast, Aldeburgh Napes
• 40th company 07.06. until 6/12/1917 - east coast of England, Aldeburgh Napes
• 41st company 14.06. until June 17th, 1917 - east coast of England, Aldeburgh Napes
• 42nd company 19.06. until 22.06.1917 - English east coast, Aldeburgh Napes
• 43rd company 28.06. until 29.06.1917 - English east coast, Aldeburgh Napes
• 44th company 05.07. until July 10th, 1917 - English east coast, Shipwash lightship
• 45th company 07/13 until July 16, 1917 - east coast of England, Shipwash lightship
• 46th company 19.07. until July 22nd, 1917 - English east coast, Shipwash lightship
• 47th company 21.08. until August 25, 1917 - east coast of England, Aldeburgh Napes
• 48th company 29.08. until 02.09.1917 - English east coast, Aldeburgh Napes
• 49th company 05.09. until 09/12/1917 - east coast of England, Aldeburgh Napes
• 50th company 17.09. until September 18, 1917 - east coast of England, east coast of England, Aldeburgh Napes
• 51st company 20.09. until 25.09.1917 - east coast of England
• 52nd company 28.09. until October 1st, 1917 - Aldeburgh Napes
• 53rd company 05.09. until October 13, 1917 - Oxfordness
• 54th company 18.10. until October 21, 1917 - east coast of England
• 55th company 28.10. until October 5, 1917 - north of Southwold
• 56th company 09.10. until October 15, 1917 - south of Southwold
• 57th company 20.10. until 25.10.1917 - Aldeburgh Napes
• 58th company 29.10. until November 15, 1917 - Lowestoft
• 59th company 01.12. until December 11th, 1917 - Sunk lightship
• 60th company 03.01. until January 5th, 1918 - east coast of England, Aldeburgh Napes
• 61st company 06.01. until January 6, 1918 - east coast of England, Aldeburgh Napes
• 62nd company 07.01. until 07.01.1918 - east coast of England, Aldeburgh Napes
• 63. Company 24.01. until 02/02/1918 - east coast of England, Oxfordness
• 64th company 05.02. until 02/12/1918 - east coast of England, Oxfordness
• 65th company 17.02. until 02.26.1918 - east coast of England, Oxfordness
• 66th company 23.02. until 02.25.1918 - east coast of England, Aldeburgh
• 67th company 04.03. until March 5th, 1918 - east coast of England, Harwich
• 68th company 10.03. until 13.03.1918 - east coast of England
• 69th company 08.04. until 04/10/1918 - Shipwash lightship
• 70th company 17.04. until April 21, 1918 - Shipwash lightship
• 71st company 21.06. until 26.06.1918 - east coast of England
• 72nd company 30.06. until July 4th, 1918 - east coast of England
• 73rd company 07.07. until July 17th, 1918 - east coast of England

Whereabouts

After its last use, UC 4 had to go to the shipyard for engine repairs . The repair could not be finished in time and the boat was blown up on withdrawal on October 2, 1918 so as not to let the enemy fall into the hands of it.

Sinking successes

The exact successes of the sinking by the mines are difficult to verify, since no reports by the commanders can directly prove the sinking, so English sources speak of 36 sinkings.

Successful sinking of UC 4
date	Ship name	nationality	tonnage	comment
August 15, 1915	Ladoga	Russia	6.136
September 17, 1915	N 1	Russia	739
February 12, 1916	Cedarwood	United Kingdom	654
February 12, 1916	Aduatiek	Belgium	2,221
February 13, 1916	Tergestea	United Kingdom	4,308
February 27, 1916	Den of Ogil	United Kingdom	5,686
October 27, 1916	Bygdo	Norway	2,345
October 28, 1916	Sparta	United Kingdom	480
November 6, 1916	Suniside	United Kingdom	447
November 25, 1916	Burnley	Royal Navy	275
December 3, 1916	Remarko	Royal Navy	447
December 5, 1916	Tervani	Royal Navy	457
December 8, 1916	Kent County	Royal Navy	86	Unclear sources
January 7, 1917	Donside	Royal Navy	457
January 18, 1917	Dagmar	Denmark	768
January 20, 1917	New Comet	Royal Navy	177
February 1, 1917	Sisters Melville	United Kingdom	260
February 2, 1917	Holdene	Royal Navy	274
March 22, 1917	Pontypridd	United Kingdom	1,556
March 22, 1917	Ambient	United Kingdom	1,517
	Cherysolite	United Kingdom	57
June 1917	Kelvin	Royal Navy	322	Unclear sources
June 3, 1917	Giralda	United Kingdom	58	Unclear sources
July 20, 1917	Queen Of The North	Royal Navy	594
September 5, 1917	Eros	Royal Navy	286	Unclear sources
October 10, 1917	Vitality	Royal Navy	202
November 11, 1917	Lapwing	United Kingdom	1,192
December 23, 1917	Grantley Hall	United Kingdom	4,008
February 1918	Rubio	United Kingdom	2,395
March 5, 1918	Estrella	United Kingdom	1,740
March 5, 1918	Coal gas	United Kingdom	2,257
March 5, 1918	Tusna fig	Norway	1,136
April 12, 1918	Lonhelen	United Kingdom	1,282
April 20, 1918	Numitor	Royal Navy	242
April 25, 1918	St. Seiriol	Royal Navy	928
June 26, 1918	Achilles II	Royal Navy	225
		Total merchant ships	34,367
		Total warships	11,847
		Total	46,214 GRT

It is unclear whether UC 4 was involved in the sinkings of the British Kent County submarine trap on December 8, 1916, the Giralda fishing trawler and the Eros mine trawler .

literature

• Harald Bendert: The UC boats of the Imperial Navy 1914-1918 . 1st edition. ES Mittler & Sohn GmbH, 2001, ISBN 3-8132-0758-7 .

swell

• Unites States National Archive (NARA) Microfilm, KTB UC 4 1915/04 / 10-1915 / 12/23 Roll 83, Item 61893, page 123
• Unites States National Archive (NARA) Microfilm, KTB UC 4 1915/12 / 24-1916 / 10/31 Roll 83, Item 61894, Page 123
• Unites States National Archive (NARA) microfilm, KTB UC 4 1916/03 / 19-1916 / 09/15 roll 83, item 61897, page 124
• Unites States National Archive (NARA) Microfilm, KTB UC 4 1916/11 / 01-1917 / 08/25 Roll 83, Item 61895, page 124
• Unites States National Archive (NARA) microfilm, KTB UC 4 1917/08 / 26-1918 / 07/17 roll 83, item 61896, page 124

Web links

• uboat.net: UC 4