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 and the Witherington and Everett Steam Ship Company collier SS Lightfoot in the English Channel off Selsey Bill on 16 March 1918.
UB-30 was sunk by two depth charges from HMS Landrail south of Goodwin Sands at 51°9′N 1°46′E / 51.150°N 1.767°E on 13 August 1918.
Design
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).
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.
Summary of raiding history
| Date | Name | Nationality | Tonnage | Fate |
|---|---|---|---|---|
| 21 October 1916 | August |  Sweden
|
346 | Sunk |
| 23 October 1916 | Elly | Sweden
|
88 | Sunk |
| 24 October 1916 | Elin |  Russian Empire
|
127 | Sunk |
| 24 October 1916 | Ingersoll | Russian Empire
|
239 | Sunk |
| 24 October 1916 | Jenny Lind | Russian Empire
|
53 | Sunk |
| 24 October 1916 | Urpo | Russian Empire
|
111 | Sunk |
| 31 August 1917 | Vernon |  United Kingdom
|
982 | Sunk |
| 3 September 1917 | Ragnhild |  United Kingdom
|
1,495 | Sunk |
| 26 September 1917 | S.N.A. 3 |  France
|
1,709 | Sunk |
| 12 November 1917 | Morning Star | United Kingdom
|
129 | Sunk |
| 3 January 1918 | Gartland | United Kingdom
|
2,613 | Sunk |
| 5 January 1918 | Glenarm Head | United Kingdom
|
3,908 | Sunk |
| 12 January 1918 | Whorlton | United Kingdom
|
1,469 | Sunk |
| 2 February 1918 | Jaffa | United Kingdom
|
1,383 | Sunk |
| 9 February 1918 | Armenia |  United States
|
5,463 | Damaged |
| 5 March 1918 | Clan Mackenzie | United Kingdom
|
6,544 | Damaged |
| 7 March 1918 | Braatt II |  Norway
|
1,834 | Sunk |
| 16 March 1918 | Lightfoot | United Kingdom
|
1,873 | Sunk |
| 18 June 1918 | Norfolk Coast | United Kingdom
|
782 | Sunk |
| 10 August 1918 | Madame Renee | United Kingdom
|
509 | Sunk |
References
Notes
- ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
- ^ Tonnages are in gross register tons
Citations
- ^ Rössler 1979, p. 64.
- ^ Gröner 1991, pp. 23–25.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Kurt Schapler". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Freiherr Cassius von Montigny". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Wilhelm Rhein (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Rudolf Steir". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
- ^ Helgason, Guðmundur. "Ships hit during WWI: Vernon". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 24 June 2011.
- ^ Helgason, Guðmundur. "Ships hit during WWI: Lightfoot". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 24 June 2011.
- ^ Helgason, Guðmundur. "Ships hit by UB-30". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 1 February 2015.
Bibliography
- Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Rössler, Eberhard (1979). Die deutschen U-Boote und ihre Werften: eine Bilddokumentation über den deutschen U-Bootbau; in zwei Bänden (in German). Vol. I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.
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