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SM UC-75

Coordinates: 53°57′N 0°9′E / 53.950°N 0.150°E / 53.950; 0.150
From Wikipedia, the free encyclopedia
For other ships with the same name, see German submarine U-75.
History
German Empire
NameUC-75
Ordered12 January 1916[1]
BuilderAG Vulcan, Hamburg[2]
Yard number80[1]
Launched6 November 1916[1]
Commissioned6 December 1916[1]
FateRammed and sunk by HMS Fairy, 31 May 1918[1]
General characteristics [3]
Class and typeType UC II submarine
Displacement
  • 410 t (400 long tons), surfaced
  • 493 t (485 long tons), submerged
Length
Beam
  • 5.22 m (17 ft 2 in) o/a
  • 3.65 m (12 ft) pressure hull
Draught3.65 m (12 ft)
Propulsion
Speed
  • 11.8 knots (21.9 km/h; 13.6 mph), surfaced
  • 7.3 knots (13.5 km/h; 8.4 mph), submerged
Range
  • 8,660–10,230 nmi (16,040–18,950 km; 9,970–11,770 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 depth50 m (160 ft)
Complement26
Armament
Notes30-second diving time
Service record[1]
Part of:
  • I Flotilla
  • 10 February – 5 August 1917
  • Flandern / Flandern II Flotilla
  • 5 August 1917 – 31 May 1918
Commanders:
  • Kptlt. Georg Paech
  • 6 December 1916 – 16 March 1917
  • Oblt.z.S. Johannes Lohs
  • 17 March 1917 – 30 January 1918
  • Oblt.z.S. Walter Schmitz[4]
  • 31 January – 31 May 1918
Operations: 13 patrol
Victories:
  • 55 merchant ships sunk
    (82,683 GRT)
  • 2 warships sunk
    (1,555 tons)
  • 2 auxiliary warship sunk
    (260 GRT)
  • 8 merchant ships damaged
    (40,021 GRT)
  • 2 auxiliary warship damaged
    (426 GRT)

SM UC-75 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 6 November 1916. She was commissioned into the German Imperial Navy on 6 December 1916 as SM UC-75.[Note 1] In 13 patrols UC-75 was credited with sinking 59 ships, either by torpedo or by mines laid. UC-75 rammed and sunk by HMS Fairy on 31 May 1918[1] with 17 dead and 14 survivors. HMS Fairy had sustained heavy damage and sank a short time later.

Design

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A Type UC II submarine, UC-75 had a displacement of 410 tonnes (400 long tons) when at the surface and 493 tonnes (485 long tons) while submerged. She had a length overall of 50.45 m (165 ft 6 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.65 m (12 ft). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 290–300 metric horsepower (210–220 kW; 290–300 shp) (a total of 580–600 metric horsepower (430–440 kW; 570–590 shp)), two electric motors producing 620 metric horsepower (460 kW; 610 shp), and two propeller shafts. She had a dive time of 30 seconds and was capable of operating at a depth of 50 metres (160 ft).[3]

The submarine had a maximum surface speed of 11.8 knots (21.9 km/h; 13.6 mph) and a submerged speed of 7.3 knots (13.5 km/h; 8.4 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 8,660 to 10,230 nautical miles (16,040 to 18,950 km; 9,970 to 11,770 mi) at 7 knots (13 km/h; 8.1 mph). UC-75 was fitted with six 100-centimetre (39 in) mine tubes, eighteen UC 200 mines, three 50-centimetre (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

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Date Name Nationality Tonnage[Note 2] Fate[5]
25 March 1917 Industria  Vereinigtes Königreich 133 Sunk
25 March 1917 Marshall  Norwegen 1,123 Sunk
25 March 1917 Median  Vereinigtes Königreich 214 Sunk
25 March 1917 Rosslyn  Vereinigtes Königreich 113 Sunk
28 March 1917 Expedient  Vereinigtes Königreich 145 Sunk
29 March 1917 Schaldis  Belgien 1,241 Sunk
1 May 1917 Alide  Russian Empire 175 Sunk
3 May 1917 Carberry King  Vereinigtes Königreich 31 Sunk
3 May 1917 Eleanor  Vereinigtes Königreich 31 Sunk
3 May 1917 Fastnet  Vereinigtes Königreich 31 Sunk
3 May 1917 Hibernia  Vereinigtes Königreich 21 Sunk
3 May 1917 Lucky Lass  Vereinigtes Königreich 10 Sunk
3 May 1917 North Star  Vereinigtes Königreich 15 Sunk
3 May 1917 Sir Edward Birkbeck  Vereinigtes Königreich 23 Sunk
4 May 1917 Marie  Frankreich 133 Sunk
5 May 1917 HMS Lavender  Royal Navy 1,200 Sunk
6 May 1917 President  Frankreich 354 Sunk
15 May 1917 Polymnia  Vereinigtes Königreich 2,426 Sunk
7 June 1917 Wilhelm  Vereinigtes Königreich 187 Sunk
11 June 1917 Anglian  Vereinigtes Königreich 5,532 Sunk
12 June 1917 HMS Prize  Royal Navy 199 Damaged
18 June 1917 Kathlamba  Vereinigtes Königreich 6,382 Damaged
19 June 1917 Kelso  Vereinigtes Königreich 1,292 Sunk
20 June 1917 Benita  Vereinigtes Königreich 130 Sunk
20 June 1917 Bidartaise  Frankreich 123 Sunk
29 July 1917 Saint Marcouf  Frankreich 1,117 Sunk
1 August 1917 Karina  Vereinigtes Königreich 4,222 Sunk
3 August 1917 Beechpark  Vereinigtes Königreich 4,763 Sunk
3 August 1917 HMS Mary B. Mitchell  Royal Navy 227 Damaged
25 August 1917 Cymrian  Vereinigtes Königreich 1,014 Sunk
29 August 1917 Cooroy  Vereinigtes Königreich 2,470 Sunk
29 August 1917 Lynburn  Vereinigtes Königreich 587 Sunk
28 September 1917 William Middleton  Vereinigtes Königreich 2,543 Damaged
9 October 1917 Main  Vereinigtes Königreich 715 Sunk
12 October 1917 W. M. Barkley  Vereinigtes Königreich 569 Sunk
13 October 1917 Eskmere  Vereinigtes Königreich 2,293 Sunk
19 October 1917 Hazelwood  Vereinigtes Königreich 3,120 Sunk
3 November 1917 HMD Deliverer  Royal Navy 79 Sunk
3 November 1917 Atlantian  Vereinigtes Königreich 9,399 Damaged
4 November 1917 Longwy  Frankreich 2,315 Sunk
8 November 1917 The Marquis  Vereinigtes Königreich 373 Sunk
1 December 1917 Euphorbia  Vereinigtes Königreich 3,109 Sunk
1 December 1917 Rydal Hall  Vereinigtes Königreich 3,314 Sunk
4 December 1917 Milton  Vereinigtes Königreich 3,267 Damaged
7 December 1917 Earl Of Elgin  Vereinigtes Königreich 4,448 Sunk
28 December 1917 Alfred H. Read  Vereinigtes Königreich 457 Sunk
28 December 1917 Chirripo  Vereinigtes Königreich 4,050 Sunk
3 January 1918 Asborg  Norwegen 2,750 Sunk
4 January 1918 Day Spring  Vereinigtes Königreich 39 Sunk
4 January 1918 Gratitude  Vereinigtes Königreich 40 Sunk
4 January 1918 Varuna  Vereinigtes Königreich 40 Sunk
5 January 1918 Iolanthe  Vereinigtes Königreich 3,081 Sunk
6 January 1918 Arca  Vereinigtes Königreich 4,839 Damaged
7 January 1918 Gascony  Vereinigtes Königreich 3,133 Sunk
7 January 1918 Leon  Frankreich 2,401 Sunk
5 March 1918 Edouard Marie  Belgien 32 Sunk
9 March 1918 Marguerite  Vereinigtes Königreich 10 Sunk
10 March 1918 Sunrise  Vereinigtes Königreich 56 Sunk
10 March 1918 Wave  Vereinigtes Königreich 47 Sunk
13 March 1918 Arno Mendi  Spanien 2,827 Sunk
14 March 1918 Tweed  Vereinigtes Königreich 1,777 Sunk
17 March 1918 Eliza Anne  Vereinigtes Königreich 36 Sunk
18 March 1918 Navigator  Vereinigtes Königreich 3,803 Damaged
28 March 1918 Dryden  Vereinigtes Königreich 5,839 Damaged
16 April 1918 Hungerford  Vereinigtes Königreich 5,811 Sunk
19 April 1918 War Helmet  Vereinigtes Königreich 8,184 Sunk
12 May 1918 Benlawers  Vereinigtes Königreich 3,949 Damaged
29 May 1918 HMT Dirk  Royal Navy 181 Sunk
31 May 1918 HMS Fairy  Royal Navy 355 Sunk

References

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Notes

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  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

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  1. ^ a b c d e f g Helgason, Guðmundur. "WWI U-boats: UC 75". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 23 February 2009.
  2. ^ Tarrant, p. 173.
  3. ^ a b c Gröner 1991, pp. 31–32.
  4. ^ Oberleutnant zur See Walter Eduard Alexander Schmitz died March 1919 as a POW in Skipton (GB) and was buried at Cannock Chase German Military Cemetery (Plot 14, Row 9, Grave 259).
  5. ^ Helgason, Guðmundur. "Ships hit by UC 75". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 December 2014.

Bibliography

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  • 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. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Gardiner, Robert; Gray, Randal, eds. (1985). Conway's All the World's Fighting Ships 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-907-8. OCLC 12119866.
  • Tarrant, V. E. (1989). The U-Boat Offensive: 1914–1945. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-764-7. OCLC 20338385.

53°57′N 0°9′E / 53.950°N 0.150°E / 53.950; 0.150

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