# SM UB-35

SM UB-35 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 22 July 1915 and launched on 28 December 1915. She was commissioned into the German Imperial Navy on 22 June 1916 as SM UB-35.
The submarine sank 42 ships in 26 patrols. UB-35 was depth charged and sunk by British warships including HMS Leven in the English Channel on 26 January 1918.

## Design

A Type UB II submarine, UB-35 had a displacement of 274 tonnes (270 long tons) when at the surface and 303 tonnes (298 long tons) while submerged. She had a total length of 36.90 m (121 ft 1 in), a beam of 4.37 m (14 ft 4 in), and a draught of 3.69 m (12 ft 1 in). The submarine was powered by two Benz six-cylinder diesel engines producing a total 270 metric horsepower (270 shp; 200 kW), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 shp), and one propeller shaft. She was capable of operating at depths of up to 50 metres (160 ft).
The submarine had a maximum surface speed of 9.06 knots (16.78 km/h; 10.43 mph) and a maximum submerged speed of 5.71 knots (10.57 km/h; 6.57 mph). When submerged, she could operate for 45 nautical miles (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 7,030 nautical miles (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-35 was fitted with two 50 centimetres (20 in) torpedo tubes, four torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.

## Summary of raiding history

| Date | Name | Nationality | Tonnage | Fate |
| 17 October 1916 | Sten | Norway | 1,046 | Sunk |
| 19 October 1916 | Cottica | Norway | 320 | Sunk |
| 19 October 1916 | Dido | Norway | 333 | Sunk |
| 19 October 1916 | Guldaas | Norway | 636 | Sunk |
| 20 October 1916 | Guldborg | Denmark | 1,569 | Sunk |
| 20 October 1916 | Libra | Denmark | 174 | Sunk |
| 21 October 1916 | Raftsund | Norway | 937 | Sunk |
| 27 October 1916 | Stemshest | Norway | 811 | Sunk |
| 5 February 1917 | Vestra | United Kingdom | 1,021 | Sunk |
| 1 April 1917 | Camilla | Norway | 2,273 | Sunk |
| 1 April 1917 | Ester | Denmark | 1,210 | Sunk |
| 2 April 1917 | Lord Scarborough | United Kingdom | 158 | Sunk |
| 4 April 1917 | Gibraltar | United Kingdom | 188 | Sunk |
| 4 April 1917 | Maggie Ross | United Kingdom | 183 | Sunk |
| 6 April 1917 | Kongshaug | Norway | 380 | Sunk |
| 6 April 1917 | Lord Kitchener | United Kingdom | 158 | Sunk |
| 6 April 1917 | Recto | United Kingdom | 177 | Sunk |
| 1 June 1917 | Paposo | Norway | 1,067 | Captured as prize |
| 1 June 1917 | Rigmor | Denmark | 161 | Captured as prize |
| 1 June 1917 | Viking | Denmark | 2,952 | Captured as prize |
| 3 June 1917 | Sara | Denmark | 1,573 | Captured as prize |
| 22 July 1917 | Breda | Netherlands | 257 | Damaged |
| 11 August 1917 | HMT Jay | Royal Navy | 144 | Sunk |
| 6 September 1917 | Thisbe | France | 1,091 | Sunk |
| 7 September 1917 | Haakon VII | Norway | 2,175 | Sunk |
| 8 September 1917 | Armorique | France | 144 | Sunk |
| 8 September 1917 | Blanche | France | 160 | Sunk |
| 8 September 1917 | Meeta | Russian Empire | 144 | Sunk |
| 27 September 1917 | Colbert | France | 385 | Damaged |
| 29 September 1917 | Kildonan | United Kingdom | 2,118 | Sunk |
| 4 October 1917 | Perseverance | United Kingdom | 30 | Sunk |
| 31 October 1917 | Phare | United Kingdom | 1,282 | Sunk |
| 2 November 1917 | Bur | Sweden | 1,806 | Sunk |
| 2 November 1917 | Jessie | United Kingdom | 332 | Sunk |
| 4 November 1917 | Gimle | Norway | 1,130 | Sunk |
| 29 November 1917 | Bob | Norway | 678 | Sunk |
| 29 November 1917 | Haugastøl | Norway | 2,118 | Sunk |
| 1 December 1917 | Rion | United Kingdom | 50 | Sunk |
| 3 December 1917 | Livonia | United Kingdom | 1,879 | Sunk |
| 3 December 1917 | Wreathier | United Kingdom | 852 | Sunk |
| 4 December 1917 | Eagle | United Kingdom | 182 | Sunk |
| 4 December 1917 | Helge | Sweden | 343 | Sunk |
| 23 December 1917 | Hilda Lea | United Kingdom | 1,328 | Sunk |
| 26 December 1917 | Skaala | Norway | 1,129 | Sunk |
| 31 December 1917 | Westville | United Kingdom | 3,207 | Sunk |
| 20 January 1918 | HMS Mechanician | Royal Navy | 9,044 | Sunk |
| 22 January 1918 | Molina | Norway | 1,122 | Sunk |
| 22 January 1918 | Serrana | United Kingdom | 3,677 | Sunk |