SM UC-27

History
German Empire
Name	UC-27
Ordered	29 August 1915
Builder	AG Vulcan, Hamburg
Yard number	66
Launched	28 June 1916
Commissioned	25 July 1916
Fate	Surrendered, 3 February 1919; broken up, July 1921
General characteristics
Class & type	Type UC II submarine
Displacement	400 t (390 long tons), surfaced; 480 t (470 long tons), submerged;
Length	49.45 m (162 ft 3 in) o/a; 39.30 m (128 ft 11 in) pressure hull;
Beam	5.22 m (17 ft 2 in) o/a; 3.65 m (12 ft) pressure hull;
Draught	3.68 m (12 ft 1 in)
Propulsion	2 × propeller shafts; 2 × 6-cylinder, 4-stroke diesel engines, 500 PS (370 kW; 490 bhp); 2 × electric motors, 460 PS (340 kW; 450 shp);
Speed	11.6 knots (21.5 km/h; 13.3 mph), surfaced; 6.6 knots (12.2 km/h; 7.6 mph), submerged;
Range	9,260 nmi (17,150 km; 10,660 mi) at 7 knots (13 km/h; 8.1 mph), surfaced; 53 nmi (98 km; 61 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	48-second diving time
Service record
Part of:	Baltic Flotilla; 15 September 1916 – 30 April 1917; Pola / Mittelmeer / Mittelmeer II Flotilla; 30 April 1917 - 11 November 1918;
Commanders:	Oblt.z.S. Karl Vesper; 25 July 1916 – 7 February 1917; Kptlt. Gerhard Schulz; 8 February – 27 November 1917; Kptlt. Wilhelm Canaris; 28 November 1917 – 14 January 1918; Oblt.z.S. Otto Gerke; 15 January – 29 November 1918;
Operations:	14 patrols
Victories:	55 merchant ships sunk ; (75,451 GRT); 3 warships sunk ; (830 tons); 2 warships damaged ; (16,804 tons);

SM UC-27 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 29 August 1915 and was launched on 28 June 1916. She was commissioned into the German Imperial Navy on 25 July 1916 as SM UC-27. In 14 patrols, UC-27 was credited with sinking 58 ships, either by torpedo or by mines laid.

SS Skifted left from Mariehamn at 8:30 o'clock 14 December 1916, carrying 56 military persons, 7 workers, 15 members of the crew, and 13 civilians, a total of 91 persons. One hour later it was hit by the sea mines laid by the UC-27 and sank soon near Ledsun on the territory of the Lemland municipality of Åland. 86 persons died.

UC-27 was surrendered to France on 3 February 1919 and was broken up at Landerneau in July 1921.

History

German Empire
Name	UC-27
Ordered	29 August 1915
Builder	AG Vulcan, Hamburg
Yard number	66
Launched	28 June 1916
Commissioned	25 July 1916
Fate	Surrendered, 3 February 1919; broken up, July 1921
General characteristics
Class & type	Type UC II submarine
Displacement	400 t (390 long tons), surfaced 480 t (470 long tons), submerged
Length	49.45 m (162 ft 3 in) o/a 39.30 m (128 ft 11 in) pressure hull
Beam	5.22 m (17 ft 2 in) o/a 3.65 m (12 ft) pressure hull
Draught	3.68 m (12 ft 1 in)
Propulsion	2 × propeller shafts 2 × 6-cylinder, 4-stroke diesel engines, 500 PS (370 kW; 490 bhp) 2 × electric motors, 460 PS (340 kW; 450 shp)
Speed	11.6 knots (21.5 km/h; 13.3 mph), surfaced 6.6 knots (12.2 km/h; 7.6 mph), submerged
Range	9,260 nmi (17,150 km; 10,660 mi) at 7 knots (13 km/h; 8.1 mph), surfaced 53 nmi (98 km; 61 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	48-second diving time
Service record
Part of:	Baltic Flotilla 15 September 1916 – 30 April 1917 Pola / Mittelmeer / Mittelmeer II Flotilla 30 April 1917 - 11 November 1918
Commanders:	Oblt.z.S. Karl Vesper 25 July 1916 – 7 February 1917 Kptlt. Gerhard Schulz 8 February – 27 November 1917 Kptlt. Wilhelm Canaris 28 November 1917 – 14 January 1918 Oblt.z.S. Otto Gerke 15 January – 29 November 1918
Operations:	14 patrols
Victories:	55 merchant ships sunk (75,451 GRT) 3 warships sunk (830 tons) 2 warships damaged (16,804 tons)