SM UC-52

	German submarine UC-56 after internment at Santander, Spain
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, 16 January 1919; broken up
General characteristics
Class & type	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 (3.5 in) Uk L/30 deck gun;
Notes	30-second diving time
Service record
Part of:	Mittelmeer / Mittelmeer II 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:	17 merchant ships sunk ; (17,217 GRT); 1 auxiliary warship sunk ; (1,013 GRT); 4 merchant ships damaged ; (13,580 GRT);

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 18 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.

History
German submarine UC-56 after internment at Santander, Spain
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, 16 January 1919; broken up
General characteristics
Class & type	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 (3.5 in) Uk L/30 deck gun
Notes	30-second diving time
Service record
Part of:	Mittelmeer / Mittelmeer II 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:	17 merchant ships sunk (17,217 GRT) 1 auxiliary warship sunk (1,013 GRT) 4 merchant ships damaged (13,580 GRT)