SM U-109

For other ships with the same name, see German submarine U-109.
History
German Empire
NameU-109
Ordered5 May 1916
BuilderGermaniawerft, Kiel
Yard number278
Launched25 September 1917
Commissioned7 November 1917
FateSunk 28 January 1918
General characteristics [1]
Class and typeType U 93 submarine
Displacement
  • 798 t (785 long tons) surfaced
  • 1,000 t (980 long tons) submerged
Length
Beam
  • 6.30 m (20 ft 8 in) (o/a)
  • 4.15 m (13 ft 7 in) (pressure hull)
Height8.25 m (27 ft 1 in)
Draught3.90 m (12 ft 10 in)
Installed power
  • 2 × 2,400 PS (1,765 kW; 2,367 shp) surfaced
  • 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion2 shafts, 2 × 1.70 m (5 ft 7 in) propellers
Speed
  • 16.4 knots (30.4 km/h; 18.9 mph) surfaced
  • 8.4 knots (15.6 km/h; 9.7 mph) submerged
Range
  • 9,280 nmi (17,190 km; 10,680 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 50 nmi (93 km; 58 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth50 m (164 ft 1 in)
Complement4 officers, 32 enlisted
Armament
Service record
Part of:
  • IV Flotilla
  • 24–26 January 1918
Commanders:
  • Kptlt. Otto Ney[2]
  • 7 November 1917 – 26 January 1918
Operations: 1 patrol
Victories: None

SM U-109[Note 1] was a Type U 93 submarine of the Imperial German Navy in World War I, taking part in the First Battle of the Atlantic.[3] The building contract was confirmed 5 May 1916, and was awarded to Germaniawerft, Kiel.[4] A Type 93 boat, she was launched 25 September 1917 and commissioned 7 November. She was under the command of Otto Ney. On 28 January 1918, she was sunk in the English Channel, possibly by a mine, while diving to avoid ships from the Dover Patrol (particularly drifter H.M. Beryl III).[5] She sank no ships.[3][6][7]

  1. ^ Gröner 1991, pp. 12–14.
  2. ^ Helgason, Guðmundur. "WWI U-boat commanders: Otto Ney". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
  3. ^ a b Helgason, Guðmundur. "WWI U-boats: U 109". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2010.
  4. ^ Rössler, Eberhard, The U-boat: The evolution and technical history of German Submarines, Naval Institute Press, Annapolis, Maryland, 1989, p. 66
  5. ^ McCartney, Innes (2002). Lost patrols : submarine wrecks of the English Channel. Penzance: Periscope. ISBN 978-1-90438-104-4.
  6. ^ Gray, Edwyn A., The U-Boat War 1914-1918, Leo Cooper, London, 1994 p. 242
  7. ^ *McCartney, Innes (2002). Lost patrols : submarine wrecks of the English Channel. Penzance: Periscope. ISBN 978-1-90438-104-4.


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