SM UC-71




For other ships with the same name, see German submarine U-71.






































































































History

German Empire
Name:
UC-71
Ordered:
12 January 1916[1]
Builder:
Blohm & Voss, Hamburg[2]
Yard number:
287[1]
Launched:
12 August 1916[1]
Commissioned:
28 November 1916[1]
Fate:
sunk on way to surrender, February 1919[1]
General characteristics [3]
Class and type:
German Type UC II submarine
Displacement:

  • 427 t (420 long tons), surfaced

  • 508 t (500 long tons), submerged
Length:

  • 50.35 m (165 ft 2 in) o/a

  • 40.30 m (132 ft 3 in) pressure hull
Beam:

  • 5.22 m (17 ft 2 in) o/a

  • 3.65 m (12 ft) pressure hull
Draught:
3.64 m (11 ft 11 in)
Propulsion:

  • 2 × propeller shafts

  • 2 × 6-cylinder, 4-stroke diesel engines, 600 PS (440 kW; 590 shp)

  • 2 × electric motors, 620 PS (460 kW; 610 shp)
Speed:

  • 12.0 knots (22.2 km/h; 13.8 mph), surfaced

  • 7.4 knots (13.7 km/h; 8.5 mph), submerged
Range:

  • 10,420 nmi (19,300 km; 11,990 mi) at 7 knots (13 km/h; 8.1 mph) surfaced

  • 52 nmi (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:
50 m (160 ft)
Complement:
26
Armament:

  • 6 × 100 cm (39.4 in) mine tubes

  • 18 × UC 200 mines

  • 3 × 50 cm (19.7 in) torpedo tubes (2 bow/external; one stern)

  • 7 × torpedoes

  • 1 × 8.8 cm (3.5 in) Uk L/30 deck gun
Notes:
35-second diving time
Service record[1]
Part of:

  • Flandern II Flotilla

  • 3 March 1917 – 13 October 1918

  • I Flotilla

  • 13 October – 11 November 1918
Commanders:


  • Oblt.z.S. Hans Valentiner[4]

  • 28 November 1916 – 25 April 1917


  • Oblt.z.S. Hugo Thielmann[5]

  • 26 April – 9 June 1917


  • Oblt.z.S. Reinhold Saltzwedel[6]

  • 10 June – 13 September 1917


  • Oblt.z.S. Ernst Steindorff[7]

  • 14 September 1917 – 28 January 1918


  • Oblt.z.S. Walter Warzecha[8]

  • 29 January – 13 August 1918


  • Oblt.z.S. Eberhard Schmidt[9]

  • 14 August – 11 November 1918
Operations:
19 patrols
Victories:

  • 61 merchant ships sunk (107,540 GRT)

  • 17 merchant ships damaged (74,089 GRT)

  • 2 warships sunk (3,210 tons)

  • 1 warship damaged (1,250 tons)

SM UC-71 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916 and was launched on 12 August 1916. She was commissioned into the German Imperial Navy on 28 November 1916 as SM UC-71.[Note 1] In 19 patrols UC-71 was credited with sinking 61 ships, either by torpedo or by mines laid. UC-71 sank on 20 February 1919 in the North Sea while on her way to be surrendered.[1]




Contents






  • 1 Design


  • 2 Summary of raiding history


  • 3 References


    • 3.1 Notes


    • 3.2 Citations


    • 3.3 Bibliography







Design


A German Type UC II submarine, UC-71 had a displacement of 427 tonnes (420 long tons) when at the surface and 508 tonnes (500 long tons) while submerged. She had a length overall of 50.35 m (165 ft 2 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.64 m (11 ft 11 in). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 300 metric horsepower (220 kW; 300 shp) (a total of 600 metric horsepower (440 kW; 590 shp)), two electric motors producing 620 metric horsepower (460 kW; 610 shp), and two propeller shafts. She had a dive time of 48 seconds and was capable of operating at a depth of 50 metres (160 ft).[3]


The submarine had a maximum surface speed of 12 knots (22 km/h; 14 mph) and a submerged speed of 7.4 knots (13.7 km/h; 8.5 mph). When submerged, she could operate for 52 nautical miles (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 10,420 nautical miles (19,300 km; 11,990 mi) at 7 knots (13 km/h; 8.1 mph). UC-71 was fitted with six 100 centimetres (39 in) mine tubes, eighteen UC 200 mines, three 50 centimetres (20 in) torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. Her complement was twenty-six crew members.[3]



Summary of raiding history






















































































































































































































































































































































































































































































































































































































Date
 Name
 Nationality
 Tonnage[Note 2]
 Fate[10]
30 March 1917
Edernian
 United Kingdom
 3,588
 Damaged
30 March 1917
Saint Louis III
 France
 97
 Sunk
30 March 1917
Sarcelle
 France
 49
 Sunk
31 March 1917
Primrose
 United Kingdom
 113
 Sunk
3 April 1917
Ellen James
 United Kingdom
 165
 Sunk
4 April 1917
Pensiero
 Kingdom of Italy
 2,632
 Sunk
5 April 1917
Gower Coast
 United Kingdom
 804
 Sunk
5 April 1917
San Fulgencio
 Spain
 1,558
 Sunk
7 April 1917
Caminha
 Portugal
 2,763
 Sunk
9 April 1917
Themistoclis
 Greece
 1,895
 Sunk
9 April 1917
Valhall
 Norway
 750
 Sunk
10 April 1917
Ranvik
 Norway
 5,848
 Sunk
12 April 1917
Edelweiss
 France
 192
 Sunk
18 April 1917
Heim
 Norway
 1,669
 Sunk
23 April 1917
Cenobic
 Belgium
 16
 Sunk
2 May 1917
Westland
 Netherlands
 108
 Sunk
5 May 1917
Simon
 Netherlands
 150
 Sunk
15 May 1917
Boreas
 Netherlands
 192
 Sunk
16 May 1917
Hendrika Johana
 Netherlands
 134
 Sunk
17 May 1917
Jakoba
 Netherlands
 107
 Sunk
17 May 1917
Mercurius
 Netherlands
 80
 Sunk
18 May 1917
Annetta
 Netherlands
 177
 Sunk
14 June 1917
Wega
 United Kingdom
 839
 Sunk
15 June 1917
Wapello
 United Kingdom
 5,576
 Sunk
26 June 1917
Normandy
 France
 543
 Damaged
28 June 1917
Marne
 France
 4,019
 Sunk
29 June 1917
Driskos
 Greece
 2,833
 Sunk
3 July 1917
Orleans
 United States
 2,853
 Sunk
4 July 1917
Snetoppen
 Norway
 2,349
 Sunk
6 July 1917
Løvstakken
 Norway
 3,105
 Sunk
6 July 1917
Victoria 2
 Norway
 2,798
 Sunk
8 July 1917
Vendee
 United Kingdom
 1,295
 Sunk
3 August 1917
Aube
 United Kingdom
 1,837
 Sunk
4 August 1917
Afrique
 France
 2,457
 Damaged
4 August 1917
Cairnstrath
 United Kingdom
 2,128
 Sunk
7 August 1917
Port Curtis
 United Kingdom
 4,710
 Sunk
8 August 1917
HMS Dunraven
 Royal Navy
 3,117
 Sunk
6 September 1917
Elisabethville
 Belgium
 7,017
 Sunk
7 September 1917
Mont de Piete
 France
 38
 Sunk
7 September 1917
Kleber
 France
 277
 Damaged
8 September 1917
Setubal
 Norway
 1,201
 Sunk
9 September 1917
HMS Myosotis
 Royal Navy
 1,250
 Damaged
10 September 1917
Vikholmen
 Norway
 494
 Sunk
22 September 1917
Matti
 Norway
 2,139
 Damaged
22 September 1917
Trongate
 United Kingdom
 2,553
 Sunk
23 September 1917
Hornsund
 United Kingdom
 3,646
 Sunk
24 September 1917
Leka
 Norway
 1,845
 Sunk
31 October 1917
Estrellano
 United Kingdom
 1,161
 Sunk
5 November 1917
Alcedo
 United States
 983
 Sunk
16 November 1917
Naalso
 France
 135
 Sunk
6 December 1917
Apley
 United Kingdom
 222
 Sunk
6 December 1917
Wyndhurst
 United Kingdom
 570
 Sunk
6 December 1917
Braeside
 United Kingdom
 569
 Sunk
24 December 1917
Luciston
 United Kingdom
 2,877
 Sunk
25 December 1917
Espagne
 Belgium
 1,463
 Sunk
25 December 1917
Hyacinthus
 United Kingdom
 5,756
 Damaged
27 December 1917
P. L. M. 4
 France
 2,640
 Sunk
28 December 1917
Fallodon
 United Kingdom
 3,012
 Sunk
28 December 1917
HMD Piscatorial II
 Royal Navy
 93
 Sunk
29 December 1917
Sapper
 United Kingdom
 276
 Sunk
18 January 1918
Gambri
 United Kingdom
 274
 Sunk
20 January 1918
Harmonides
 United Kingdom
 3,521
 Damaged
23 January 1918
Aalesund
 Norway
 414
 Sunk
14 February 1918
Atlas
 United Kingdom
 3,090
 Sunk
19 February 1918
Athenic
 United Kingdom
 4,078
 Damaged
19 February 1918
Commonwealth
 United Kingdom
 3,353
 Sunk
8 March 1918
Saba
 United Kingdom
 4,257
 Damaged
12 March 1918
Clarissa Radcliffe
 United Kingdom
 5,754
 Damaged
12 March 1918
Savan
 United Kingdom
 4,264
 Damaged
13 March 1918
Londonier
 Belgium
 1,870
 Sunk
14 March 1918
Agate
 United Kingdom
 248
 Sunk
14 March 1918
Comrie Castle
 United Kingdom
 5,173
 Damaged
7 April 1918
Highland Brigade
 United Kingdom
 5,669
 Sunk
12 April 1918
Luis
 United Kingdom
 4,284
 Sunk
10 May 1918
Amplegarth
 United Kingdom
 3,707
 Sunk
15 May 1918
Pennyworth
 United Kingdom
 5,388
 Damaged
20 May 1918
Manchester Importer
 United Kingdom
 4,028
 Damaged
26 June 1918
Raranga
 United Kingdom
 10,040
 Damaged
31 July 1918
City of Liverpool
 United Kingdom
 88
 Sunk
4 August 1918
Waipara
 United Kingdom
 6,994
 Damaged
5 August 1918
Polescar
 United Kingdom
 5,832
 Damaged
15 August 1918
Ulleswater
 United Kingdom
 930
 Sunk
15 August 1918
HMS Scott
 Royal Navy
 1,801
 Sunk
20 August 1918
 Mineswepper Shirley
 Royal Navy
 820
 Damaged


References



Notes





  1. ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.


  2. ^ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.




Citations





  1. ^ abcdefg Helgason, Guðmundur. "WWI U-boats: UC 71". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 23 February 2009..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ Tarrant, p. 173.


  3. ^ abc Gröner 1991, pp. 31-32.


  4. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Valentiner (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.


  5. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hugo Thielmann". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.


  6. ^ Helgason, Guðmundur. "WWI U-boat commanders: Reinhold Saltzwedel (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.


  7. ^ Helgason, Guðmundur. "WWI U-boat commanders: Ernst Steindorff (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.


  8. ^ Helgason, Guðmundur. "WWI U-boat commanders: Walter Warzecha (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.


  9. ^ Helgason, Guðmundur. "WWI U-boat commanders: Eberhard Schmidt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 March 2015.


  10. ^ Helgason, Guðmundur. "Ships hit by UC 71". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 December 2014.




Bibliography


.mw-parser-output .refbegin{font-size:90%;margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{list-style-type:none;margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li,.mw-parser-output .refbegin-hanging-indents>dl>dd{margin-left:0;padding-left:3.2em;text-indent:-3.2em;list-style:none}.mw-parser-output .refbegin-100{font-size:100%}



  • Bendert, Harald (2001). Die UC-Boote der Kaiserlichen Marine 1914-1918. Minenkrieg mit U-Booten (in German). Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0758-7.


  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.


  • Gardiner, Robert, ed. (1985). Conway's All the World's Fighting Ships, 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-907-8. OCLC 12119866.CS1 maint: Extra text: authors list (link)


  • Tarrant, V. E. (1989). The U-Boat Offensive: 1914–1945. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-764-7. OCLC 20338385.





Coordinates: 54°10′N 7°54′E / 54.167°N 7.900°E / 54.167; 7.900







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