SM U-111

For other ships with the same name, see German submarine U-111.
SM U-111 at sea, 1919
History
German Empire
NameU-111
Ordered5 May 1916
BuilderGermaniawerft, Kiel
Yard number280
Launched5 September 1917
Commissioned30 December 1917
FateSurrendered to Great Britain 20 November 1918, transferred to the United States Navy 25 March 1919
United States
NameU-111
Acquired3 April 1919
FateSunk by USS Falcon 31 August 1922
General characteristics [1]
Class and typeType U 93 submarine
Displacement
  • 798 t (785 long tons) surfaced
  • 996 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)
Draught3.76 m (12 ft 4 in)
Installed power
  • 2 × 2,300 PS (1,692 kW; 2,269 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
  • 8,300 nmi (15,400 km; 9,600 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:
Commanders:
  • Kptlt. Hans Beyersdorff[2]
  • 30 December 1917 – 11 November 1918
Operations: 4 patrols
Victories: 3 merchant ships sunk
(3,011 GRT)
Service record
Part of:
  • United States Navy:
  • Ex-German Submarine Expeditionary Force
  • 25 March 1919 - 31 August 1922
Commanders:
  • LCDR Freeland A. Daubin, 1919
  • LCDR Garnet Hulings, 1919 - Unknown end
Operations: Victory Liberty Loan, comparison and operational tests

SM U-111[Note 1] was one of the 329 submarines serving in the Imperial German Navy in World War I. She took part in the First Battle of the Atlantic.[3]

Completed at Kiel early in January 1918, she went to the Kiel School for shakedown and training until March, when she joined IV Flotilla.[4] She was monitored continuously by British Naval Intelligence (Room 40), on which her movement reports are based. All her operations took place in 1918.

  1. ^ Gröner 1991, pp. 12–14.
  2. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Beyersdorff". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 2015.
  3. ^ Helgason, Guðmundur. "WWI U-boats: U 111". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2010.
  4. ^ Koerver, Hans Joachim (2020). The Kaiser's U-Boat Assault on America Germany's Great War Gamble in the First World War. Havertown: Pen & Sword Books Limited. ISBN 978-1-5267-7387-6. OCLC 1202468466.


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