SM UC-52

History

German Empire
Name:	UC-52
Ordered:	12 January 1916
Builder:	Germaniawerft, Kiel
Yard number:	268
Launched:	23 January 1917
Commissioned:	15 March 1917
Fate:	surrendered, January 1919; broken up
General characteristics
Class and type:	German Type UC II submarine
Displacement:	434 t (427 long tons), surfaced 511 t (503 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:	3.64 m (11 ft 11 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:	11.8 knots (21.9 km/h; 13.6 mph), surfaced 7.2 knots (13.3 km/h; 8.3 mph), submerged
Range:	8,820–9,450 nmi (16,330–17,500 km; 10,150–10,870 mi) at 7 knots (13 km/h; 8.1 mph) surfaced 56 nmi (104 km; 64 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 (3.46 in) Uk L/30 deck gun
Notes:	30-second diving time
Service record
Part of:	Pola Flotilla 8 July 1917 – 11 November 1918
Commanders:	Kptlt. Ludwig Karl Sahl 15 March – 27 September 1917 Oblt.z.S. Hellmuth von Doemming 28 September 1917 – 17 July 1918 Oblt.z.S. Carl Heinrich Saß 18 July – 11 November 1918
Operations:	7 patrols
Victories:	20 merchant ships sunk (17,217 GRT) 4 merchant ships damaged (13,580 GRT) 1 warship sunk (1,013 tons)

SM UC-52 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 and was launched on 23 January 1917. She was commissioned into the German Imperial Navy on 15 March 1917 as SM UC-52. In seven patrols UC-52 was credited with sinking 21 ships, either by torpedo or by mines laid. She notably sank the Italian troopship Verona, killing 880 soldiers. UC-52 was surrendered on 16 January 1919 and broken up at Morecambe.

A German Type UC II submarine, UC-52 had a displacement of 434 tonnes (427 long tons) when at the surface and 511 tonnes (503 long tons) while submerged. She had a length overall of 52.69 m (172 ft 10 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.64 m (11 ft 11 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).

The submarine had a maximum surface speed of 11.8 knots (21.9 km/h; 13.6 mph) and a submerged speed of 7.2 knots (13.3 km/h; 8.3 mph). When submerged, she could operate for 56 nautical miles (104 km; 64 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,820 to 9,450 nautical miles (16,330 to 17,500 km; 10,150 to 10,870 mi) at 7 knots (13 km/h; 8.1 mph). UC-52 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 centimetres (3.5 in) Uk L/30 deck gun. Her complement was twenty-six crew members.

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