SM UC-20

For other ships with the same name, see German submarine U-20.
History
German Empire
NameUC-20
Ordered29 August 1915[1]
BuilderBlohm & Voss, Hamburg[2]
Yard number270[1]
Launched1 April 1916[1]
Commissioned7 September 1916[1]
FateSurrendered, 16 January 1919; broken up, 1919 – 20[1]
General characteristics [3]
Class and typeType UC II submarine
Displacement
  • 417 t (410 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
Draught3.68 m (12 ft 1 in)
Propulsion
Speed
  • 11.6 knots (21.5 km/h; 13.3 mph), surfaced
  • 7.0 knots (13.0 km/h; 8.1 mph), submerged
Range
  • 9,430 nmi (17,460 km; 10,850 mi) at 7 knots (13 km/h; 8.1 mph), surfaced
  • 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph), submerged
Test depth50 m (160 ft)
Complement26
Armament
Notes35-second diving time
Service record
Part of:
  • Pola / Mittelmeer / Mittelmeer I Flotilla
  • 11 December 1916 – 11 November 1918
Commanders:
  • Kptlt. Franz Becker[4]
  • 8 September 1916 – 8 May 1917
  • Oblt.z.S. Hans Adalbert von der Lühe[5]
  • 9 May – 12 December 1917
  • Oblt.z.S. Otto Kümpel[6]
  • 13 December 1917 – 10 January 1918
  • Oblt.z.S. Heinrich Kukat[7]
  • 1 April – 18 June 1918
  • Oblt.z.S. Hermann Rohne[8]
  • 19 June – 29 November 1918
Operations: 13 patrols
Victories:
  • 21 merchant ships sunk
    (20,927 GRT)
  • 3 merchant ships damaged
    (11,554 GRT)

SM UC-20[Note 1] 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 29 August 1915 and was launched on 1 April 1916. She was commissioned into the German Imperial Navy on 7 September 1916 as SM UC-20. In 13 patrols UC-20 was credited with sinking 21 ships, either by torpedo or by mines laid. UC-20 was surrendered on 16 January 1919 and broken up at Preston in 1919–20.[1]

  1. ^ a b c d e f Helgason, Guðmundur. "WWI U-boats: UC 20". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 February 2009.
  2. ^ Tarrant, p. 173.
  3. ^ Gröner 1991, pp. 31–32.
  4. ^ Helgason, Guðmundur. "WWI U-boat commanders: Franz Becker (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 February 2015.
  5. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Adalbert von der Lühe". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 February 2015.
  6. ^ Helgason, Guðmundur. "WWI U-boat commanders: Otto Kümpel". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 February 2015.
  7. ^ Helgason, Guðmundur. "WWI U-boat commanders: Heinrich Kukat (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 February 2015.
  8. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hermann Rohne". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 February 2015.


Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).