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History
German Empire
Name	UC-59
Ordered	12 January 1916
Builder	Kaiserliche Werft, Danzig
Yard number	41
Laid down	25 March 1916
Launched	28 September 1916
Commissioned	12 May 1917
Fate	Surrendered, 21 November 1918; broken up, 1919 – 20
General characteristics
Class and type	Type UC II submarine
Displacement	415 t (408 long tons), surfaced; 498 t (490 long tons), submerged;
Length	52.69 m (172 ft 10 in) o/a; 40.96 m (134 ft 5 in) pressure hull;
Beam	5.22 m (17 ft 2 in) o/a; 3.65 m (12 ft) pressure hull;
Draught	3.61 m (11 ft 10 in)
Propulsion	2 × propeller shafts; 2 × 6-cylinder, 4-stroke diesel engines, 580–600 PS (430–440 kW; 570–590 shp); 2 × electric motors, 620 PS (460 kW; 610 shp);
Speed	11.6 knots (21.5 km/h; 13.3 mph), surfaced; 7.3 knots (13.5 km/h; 8.4 mph), submerged;
Range	8,660–9,450 nmi (16,040–17,500 km; 9,970–10,870 mi) at 7 knots (13 km/h; 8.1 mph) surfaced; 52 nmi (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	26
Armament	6 × 100 cm (39.4 in) mine tubes; 18 × UC 200 mines; 3 × 50 cm (19.7 in) torpedo tubes (2 bow/external; one stern); 7 × torpedoes; 1 × 8.8 cm (3.5 in) Uk L/30 deck gun;
Notes	30-second diving time
Service record
Part of:	Baltic Flotilla; 21 July – 11 December 1917; I Flotilla; 11 December 1917 – 11 November 1918;
Commanders:	Kptlt. Herbert Lefholz; 12 May 1917 – 26 April 1918; Oblt.z.S. Walter Strasser; 27 April – 11 November 1918;
Operations:	9 patrols
Victories:	7 merchant ships sunk ; (4,791 GRT); 1 auxiliary warship sunk ; (330 GRT); 1 merchant ship taken as prize ; (1,277 GRT);

SM UC-59 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 12 January 1916, laid down on 25 March 1916, and was launched on 28 September 1916. She was commissioned into the German Imperial Navy on 12 May 1917 as SM UC-59.^{[Note 1]} In nine patrols UC-59 was credited with sinking eight ships, either by torpedo or by mines laid. UC-59 was surrendered on 21 November 1918 and broken up at Bo'ness in 1919 – 20.^[1]

Design

A Type UC II submarine, UC-59 had a displacement of 415 tonnes (408 long tons) when at the surface and 498 tonnes (490 long tons) while submerged. She had a length overall of 50.52 m (165 ft 9 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.61 m (11 ft 10 in). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 290–300 metric horsepower (210–220 kW; 290–300 shp) (a total of 580–600 metric horsepower (430–440 kW; 570–590 shp)), two electric motors producing 620 metric horsepower (460 kW; 610 shp), and two propeller shafts. She had a dive time of 48 seconds and was capable of operating at a depth of 50 metres (160 ft).^[3]

The submarine had a maximum surface speed of 11.6 knots (21.5 km/h; 13.3 mph) and a submerged speed of 7.3 knots (13.5 km/h; 8.4 mph). When submerged, she could operate for 52 nautical miles (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,660 to 9,450 nautical miles (16,040 to 17,500 km; 9,970 to 10,870 mi) at 7 knots (13 km/h; 8.1 mph). UC-59 was fitted with six 100 centimetres (39 in) mine tubes, eighteen UC 200 mines, three 50 centimetres (20 in) torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. Her complement was twenty-six crew members.^[3]

Summary of raiding history

Date	Name	Nationality	Tonnage^{[Note 2]}	Fate^[6]
20 August 1917	Ilja Muromets	Imperial Russian Navy	330	Sunk
23 February 1918	Remus	United Kingdom	1,079	Sunk
28 June 1918	Elbjorg	Norway	523	Sunk
29 June 1918	Drowning Thyra	Denmark	430	Sunk
29 June 1918	Ariadne	Norway	496	Sunk
12 July 1918	Margrete	Denmark	1,277	Captured as prize
21 August 1918	Hecla	Norway	860	Sunk
21 August 1918	Loeke	Norway	319	Sunk
24 August 1918	Auckland Castle	United Kingdom	1,084	Sunk

References

Notes

^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
^ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations

^ ^a ^b ^c ^d ^e ^f ^g Helgason, Guðmundur. "WWI U-boats: UC 59". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 23 February 2009.
^ Tarrant, p. 173.
^ ^a ^b ^c Gröner 1991, pp. 31–32.
^ Helgason, Guðmundur. "WWI U-boat commanders: Herbert Lefholz". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 March 2015.
^ Helgason, Guðmundur. "WWI U-boat commanders: Walter Strasser". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 March 2015.
^ Helgason, Guðmundur. "Ships hit by UC 59". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 2 March 2015.

Bibliography

Bendert, Harald (2001). Die UC-Boote der Kaiserlichen Marine 1914-1918. Minenkrieg mit U-Booten (in German). Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0758-7.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
Gardiner, Robert; Gray, Randal, eds. (1985). Conway's All the World's Fighting Ships 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-907-8. OCLC 12119866.
Tarrant, V. E. (1989). The U-Boat Offensive: 1914–1945. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-764-7. OCLC 20338385.