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.
 SM UB-45, a U-boat similar to UB-30
| |
| History | |
|---|---|
 German Empire | |
| 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 by British warships[2] |
| General characteristics [2] | |
| Class and type | German Type UB II submarine |
| Displacement |
|
| Length |
|
| Beam |
|
| Draught | 3.69 m (12 ft 1 in) |
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 50 m (160 ft) |
| Complement | 2 officers, 21 men |
| Armament |
|
| Notes | 42-second diving time |
| Service record | |
| Part of: |
|
| Commanders: | |
| Operations: | 19 patrols |
| Victories: | |
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′N 1°46′E / 51.150°N 1.767°E on 13 August 1918.[2]
Design edit
A German 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]
Summary of raiding history edit
| Date | Name | Nationality | Tonnage[Note 2] | Fate[9] |
|---|---|---|---|---|
| 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 edit
Notes edit
- ^ "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 edit
- ^ a b c d e Rössler 1979, p. 64.
- ^ a b c d e f g 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 edit
- 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.