SM UB-11

For other ships with the same name, see German submarine U-11.
History
German Empire
NameUB-11
Ordered15 October 1914[1]
BuilderAG Weser, Bremen[2]
Yard number220[1]
Laid down7 November 1914[1]
Launched2 March 1915[1]
Commissioned4 March 1915[1]
Stricken19 February 1919[3]
FateBroken up, 3 February 1920[1]
General characteristics [4]
Class and typeType UB I submarine
Displacement
  • 127 t (125 long tons) surfaced
  • 141 t (139 long tons) submerged
Length27.88 m (91 ft 6 in) (o/a)
Beam3.15 m (10 ft 4 in)
Draft3.03 m (9 ft 11 in)
Installed power
Propulsion1 × propeller shaft
Speed
  • 7.45 knots (13.80 km/h; 8.57 mph) surfaced
  • 6.24 knots (11.56 km/h; 7.18 mph) submerged
Range
  • 1,500 nmi (2,800 km; 1,700 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced
  • 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth50 metres (160 ft)
Complement14
Armament
Notes33-second diving time
Service record
Commanders:
  • Oblt. Ralph Wenninger
  • 4–10 March 1915[1]
Operations: No patrols[1]
Victories: None[1]

SM UB-11 was a German Type UB I submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. UB-11 was ordered in October 1914 and was laid down at the AG Weser shipyard in Bremen in November. UB-11 was a little under 28 metres (92 ft) in length and displaced between 127 and 141 tonnes (125 and 139 long tons), depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. She was launched and commissioned as SM UB-11 in March 1915.[Note 1]

UB-11's commanding officer at commissioning only remained in charge of the ship for a week. Sources do not report any more commanding officers assigned through the end of the war, so it's not clear if the submarine remained in commission. UB-11 was reported in use as a training vessel at Kiel in September 1915. The U-boat made no war patrols and sank no ships during the war, which may indicate that the vessel remained in a training role. At the end of the war, UB-11 was deemed unseaworthy and unable to surrender at Harwich with the rest of Germany's U-boat fleet. She remained in Germany where she was broken up by Stinnes in February 1920.

  1. ^ a b c d e f g h i Helgason, Guðmundur. "WWI U-boats: UB 11". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 19 February 2009.
  2. ^ Tarrant, p. 172.
  3. ^ "UB-11 (6104961)". Miramar Ship Index. Retrieved 19 March 2009.
  4. ^ Gröner 1991, pp. 22–23.


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