![]() SM UB-45, a U-boat similar to UB-30 | |
History | |
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Name | UB-30 |
Ordered | 22 July 1915 [1] |
Builder | Blohm & Voss, Hamburg [1] |
Cost | 1,152,000 German Papiermark [2] |
Yard number | 254 [1] |
Launched | 16 November 1915 [1] |
Completed | 16 March 1916 [1] |
Commissioned | 18 March 1916 [2] |
Fate | Sunk 13 August 1918 [2] |
General characteristics [2] | |
Class & type | Type UB II submarine |
Displacement | |
Length |
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Beam |
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Draught | 3.69 m (12 ft 1 in) |
Propulsion |
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Speed |
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Range |
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Test depth | 50 m (160 ft) |
Complement | 2 officers, 21 men |
Armament |
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Notes | 42-second diving time |
Service record | |
Part of: |
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Commanders: | |
Operations: | 19 patrols |
Victories: |
SM UB-30 [Note 1] 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 16 November 1915. She was commissioned into the German Imperial Navy on 18 March 1916 as SM UB-30.
The submarine sank 18 ships in 19 patrols. They included the William Cory & Son collier SS Vernon in the North Sea off Spurn on 31 August 1917 [7] and the Witherington and Everett Steam Ship Company collier SS Lightfoot in the English Channel off Selsey Bill on 16 March 1918. [8]
UB-30 was sunk by two depth charges from HMS Landrail south of Goodwin Sands at 51°9′N1°46′E / 51.150°N 1.767°E on 13 August 1918. [2]
A Type UB II submarine, UB-30 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). [2]
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-30 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. [2]
Date | Name | Nationality | Tonnage [Note 2] | Fate [9] |
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21 October 1916 | August | ![]() | 346 | Sunk |
23 October 1916 | Elly | ![]() | 88 | Sunk |
24 October 1916 | Elin | ![]() | 127 | Sunk |
24 October 1916 | Ingersoll | ![]() | 239 | Sunk |
24 October 1916 | Jenny Lind | ![]() | 53 | Sunk |
24 October 1916 | Urpo | ![]() | 111 | Sunk |
31 August 1917 | Vernon | ![]() | 982 | Sunk |
3 September 1917 | Ragnhild | ![]() | 1,495 | Sunk |
26 September 1917 | S.N.A. 3 | ![]() | 1,709 | Sunk |
12 November 1917 | Morning Star | ![]() | 129 | Sunk |
3 January 1918 | Gartland | ![]() | 2,613 | Sunk |
5 January 1918 | Glenarm Head | ![]() | 3,908 | Sunk |
12 January 1918 | Whorlton | ![]() | 1,469 | Sunk |
2 February 1918 | Jaffa | ![]() | 1,383 | Sunk |
9 February 1918 | Armenia | ![]() | 5,463 | Damaged |
5 March 1918 | Clan Mackenzie | ![]() | 6,544 | Damaged |
7 March 1918 | Braatt II | ![]() | 1,834 | Sunk |
16 March 1918 | Lightfoot | ![]() | 1,873 | Sunk |
18 June 1918 | Norfolk Coast | ![]() | 782 | Sunk |
10 August 1918 | Madame Renee | ![]() | 509 | Sunk |