SM UC-25

For other ships with the same name, see German submarine U-25.
History
German Empire
NameUC-25
Ordered29 August 1915[1]
BuilderAG Vulcan, Hamburg[2]
Yard number64[1]
Launched10 June 1916[1]
Commissioned28 June 1916[1]
FateScuttled at Pola, 28 October 1918[1]
General characteristics [3]
Class and typeType UC II submarine
Displacement
  • 400 t (390 long tons), surfaced
  • 480 t (470 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
  • 6.6 knots (12.2 km/h; 7.6 mph), submerged
Range
  • 9,260 nmi (17,150 km; 10,660 mi) at 7 knots (13 km/h; 8.1 mph), surfaced
  • 53 nmi (98 km; 61 mi) at 4 knots (7.4 km/h; 4.6 mph), submerged
Test depth50 m (160 ft)
Complement26
Armament
Notes48-second diving time
Service record
Part of:
  • Baltic Flotilla
  • 12 September 1916 – 15 April 1917
  • Pola / Mittelmeer / Mittelmeer II Flotilla
  • 15 April 1917 – 11 November 1918
Commanders:
  • Kptlt. Johannes Feldkirchner[4]
  • 28 June 1916 – 17 July 1917
  • Oblt.z.S. Walter Lippold[5]
  • 18 July – 13 December 1917
  • Oblt.z.S. Freiherr Ernst von Wangenheim[6]
  • 14 December 1917 – 15 February 1918
  • Oblt.z.S. Karl Dönitz[7]
  • 16 February – 7 August 1918
Operations: 13 patrols
Victories:
  • 17 merchant ships sunk
    (16,872 GRT)
  • 3 warships sunk
    (2,201 tons)
  • 1 auxiliary warship sunk
    (255 GRT)
  • 4 merchant ships damaged
    (22,035 GRT)
  • 2 warships damaged
    (6,500 tons)
  • 1 auxiliary warship damaged
    (6,335 GRT)

SM UC-25 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 10 June 1916. She was commissioned into the German Imperial Navy on 28 June 1916 as SM UC-25.[Note 1] In 13 patrols UC-25 was credited with sinking 21 ships, either by torpedo or by mines laid. From March to September 1918, she was commanded by Karl Dönitz, later grand admiral in charge of all U-boats in World War II. UC-25 was scuttled at Pola on 28 October 1918 on the surrender of Austria-Hungary.[1]

  1. ^ a b c d e f Helgason, Guðmundur. "WWI U-boats: UC 25". 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: Johannes Feldkirchner". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 15 February 2015.
  5. ^ Helgason, Guðmundur. "WWI U-boat commanders: Walter Lippold". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 15 February 2015.
  6. ^ Helgason, Guðmundur. "WWI U-boat commanders: Freiherr Ernst von Wangenheim". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 15 February 2015.
  7. ^ Helgason, Guðmundur. "WWI U-boat commanders: Karl Dönitz (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 15 February 2015.


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