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, February 1919; broken up, July 1921
General characteristics
Class and type:	German 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 (3.46 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 II Flotilla 30 April 1917 - 11 November 1918
Commanders:	Oblt.z.S. Karl Vesper 25 July 1916 – 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 (75,470 GRT) 1 merchant ship damaged (15,544 GRT) 3 warships sunk (830 tons) 1 warship damaged (1,260 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 57 ships, either by torpedo or by mines laid.

S/s 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.

A German Type UC II submarine, UC-27 had a displacement of 400 tonnes (390 long tons) when at the surface and 480 tonnes (470 long tons) while submerged. She had a length overall of 49.45 m (162 ft 3 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.68 m (12 ft 1 in). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 250 metric horsepower (180 kW; 250 shp) (a total of 500 metric horsepower (370 kW; 490 shp)), two electric motors producing 460 metric horsepower (340 kW; 450 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).

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