# SM UC-1

SM UC-1 was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat had been ordered by November 1914 and was launched on 26 April 1915. She was commissioned into the German Imperial Navy on 5 July 1915 as SM UC-1. Mines laid by UC-1 in her 80 patrols were credited with sinking 41 ships. UC-1 disappeared after 18 July 1917.

## Design

A Type UC I submarine, UC-1 had a displacement of 168 tonnes (165 long tons) when at the surface and 183 tonnes (180 long tons) while submerged. She had a length overall of 33.99 m (111 ft 6 in), a beam of 3.15 m (10 ft 4 in), and a draught of 3.04 m (10 ft). The submarine was powered by one Daimler-Motoren-Gesellschaft six-cylinder, four-stroke diesel engine producing 90 metric horsepower (66 kW; 89 shp), an electric motor producing 175 metric horsepower (129 kW; 173 shp), and one propeller shaft. She was capable of operating at a depth of 50 metres (160 ft).
The submarine had a maximum surface speed of 6.20 knots (11.48 km/h; 7.13 mph) and a maximum submerged speed of 5.22 knots (9.67 km/h; 6.01 mph). When submerged, she could operate for 50 nautical miles (93 km; 58 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 780 nautical miles (1,440 km; 900 mi) at 5 knots (9.3 km/h; 5.8 mph). UC-1 was fitted with six 100 centimetres (39 in) mine tubes, twelve UC 120 mines, and one 8 millimetres (0.31 in) machine gun. She was built by AG Vulcan Stettin and her complement was fourteen crew members.

## Summary of raiding history

| Date | Name | Nationality | Tonnage | Fate |
| 30 June 1915 | HMS Lightning | Royal Navy | 320 | Sunk |
| 14 July 1915 | Rym | Norway | 1,073 | Sunk |
| 15 July 1915 | HMT Agamemnon II | Royal Navy | 225 | Sunk |
| 30 July 1915 | Prince Albert | Belgium | 1,820 | Sunk |
| 31 July 1915 | Galicia | United Kingdom | 5,922 | Damaged |
| 8 August 1915 | HMT Ben Ardna | Royal Navy | 197 | Sunk |
| 14 August 1915 | Highland Corrie | United Kingdom | 7,583 | Damaged |
| 9 September 1915 | Balakani | United Kingdom | 3,696 | Sunk |
| 22 October 1915 | HMT Scott | Royal Navy | 288 | Sunk |
| 9 November 1915 | Irene | United Kingdom | 543 | Sunk |
| 27 November 1915 | Klar | United Kingdom | 518 | Sunk |
| 3 December 1915 | HMT Etoile Polaire | Royal Navy | 278 | Sunk |
| 16 December 1915 | Levenpool | United Kingdom | 4,844 | Damaged |
| 24 December 1915 | HMT Carilon | Royal Navy | 226 | Sunk |
| 24 December 1915 | Embla | United Kingdom | 1,172 | Sunk |
| 2 January 1916 | Glocliffe | United Kingdom | 2,211 | Damaged |
| 18 January 1916 | Rijndam | Netherlands | 12,527 | Damaged |
| 19 January 1916 | Leoville | France | 775 | Sunk |
| 28 January 1916 | Perth | Norway | 3,522 | Damaged |
| 30 January 1916 | Maasdijk | Netherlands | 3,557 | Sunk |
| 11 February 1916 | Alabama | Norway | 891 | Sunk |
| 25 March 1916 | Duiveland | Netherlands | 1,297 | Sunk |
| 27 March 1916 | Empress of Midland | United Kingdom | 2,224 | Sunk |
| 4 April 1916 | Bendew | United Kingdom | 3,681 | Sunk |
| 12 April 1916 | Colombia | Netherlands | 5,644 | Damaged |
| 20 April 1916 | Lodewijk Van Nassau | Netherlands | 3,350 | Sunk |
| 2 May 1916 | Fridland | Sweden | 4,960 | Damaged |
| 26 May 1916 | El Argentino | United Kingdom | 6,809 | Sunk |
| 18 June 1916 | Mendibil-mendi | Spain | 4,501 | Sunk |
| 26 June 1916 | Astrologer | United Kingdom | 912 | Sunk |
| 26 June 1916 | HMT Tugela | Royal Navy | 233 | Sunk |
| 28 June 1916 | Mercurius | United Kingdom | 129 | Sunk |
| 30 June 1916 | HMT Whooper | Royal Navy | 302 | Sunk |
| 16 July 1916 | Alto | United Kingdom | 2,266 | Sunk |
| 16 July 1916 | Mopsa | United Kingdom | 885 | Sunk |
| 30 July 1916 | Claudia | United Kingdom | 1,144 | Sunk |
| 11 August 1916 | F. Stobart | United Kingdom | 801 | Sunk |
| 23 August 1916 | HMT Birch | Royal Navy | 215 | Sunk |
| 27 August 1916 | HMD Ocean Plough | Royal Navy | 99 | Sunk |
| 31 August 1916 | HMD Tuberose | Royal Navy | 67 | Sunk |
| 1 September 1916 | Dronning Maud | Norway | 1,102 | Sunk |
| 4 September 1916 | HMT Jessie Nutten | Royal Navy | 187 | Sunk |
| 6 October 1916 | Lanterna | United Kingdom | 1,685 | Sunk |
| 8 November 1916 | HMS Zulu | Royal Navy | 1,027 | Sunk |
| 28 December 1916 | Torpilleur 317 | French Navy | 100 | Sunk |
| 1 January 1917 | Sussex | United Kingdom | 5,686 | Damaged |
| 15 January 1917 | Port Nicholson | United Kingdom | 8,418 | Sunk |
| 11 May 1917 | HMT Bracklyn | Royal Navy | 303 | Sunk |
| 24 June 1917 | HMS Kempton | Royal Navy | 810 | Sunk |
| 24 June 1917 | HMS Redcar | Royal Navy | 810 | Sunk |