# SM UB-30

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For other ships named German submarine U-30, see [German submarine U-30 (disambiguation)](/source/German_submarine_U-30_(disambiguation)).

**SM *UB-30***[Note 1] was a German [Type UB II](/source/Type_UB_II_submarine) [submarine](/source/Submarine) or [U-boat](/source/U-boat) in the [German Imperial Navy](/source/German_Imperial_Navy) (German: *Kaiserliche Marine*) during [World War I](/source/World_War_I). The U-boat was ordered on 22 July 1915 and [launched](/source/Ceremonial_ship_launching) on 16 November 1915. She was [commissioned](/source/Ship_commissioning) 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](/source/Cory_Environmental#Coal_and_refuse) collier SS *Vernon* in the [North Sea](/source/North_Sea) off [Spurn](/source/Spurn) on 31 August 1917[7] and the Witherington and Everett Steam Ship Company collier [SS *Lightfoot*](/source/Wandsworth_and_District_Gas_Company#Colliers) in the [English Channel](/source/English_Channel) off [Selsey Bill](/source/Selsey_Bill) on 16 March 1918.[8]

*UB-30* was sunk by two [depth charges](/source/Depth_charge) from [HMS *Landrail*](/source/HMS_Landrail_(1914)) south of [Goodwin Sands](/source/Goodwin_Sands) at [51°9′N 1°46′E](https://geohack.toolforge.org/geohack.php?params=51_9_N_1_46_E) on 13 August 1918.[2]

## Design

A [Type UB II submarine](/source/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](/source/Beam_(nautical)) of 4.37 m (14 ft 4 in), and a [draught](/source/Draught_(ship)) of 3.69 m (12 ft 1 in). The submarine was powered by two [Benz](/source/Karl_Benz) six-cylinder diesel engines producing a total 270 metric horsepower (270 hp; 200 kW), two [Siemens-Schuckert](/source/Siemens-Schuckert) electric motors producing 280 metric horsepower (210 kW; 280 hp), and one [propeller shaft](/source/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](/source/Torpedo_tube), four torpedoes, and one [8.8 cm (3.5 in) Uk L/30](/source/8.8_cm_SK_L/30_naval_gun) [deck gun](/source/Deck_gun). She had a [complement](/source/Ship's_company) of twenty-one crew members and two officers and a 42-second dive time.[2]

## Summary of raiding history

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

### Notes

1. "SM" stands for "Seiner Majestät" (English: *His Majesty's*) and combined with the *U* for *Unterseeboot* would be translated as *His Majesty's Submarine*.

1. Tonnages are in [gross register tons](/source/Gross_register_tons)

### Citations

1. Rössler 1979, p. 64.

1. Gröner 1991, pp. 23–25.

1. 288. Retrieved 1 February 2015.

1. 212. Retrieved 1 February 2015.

1. 267. Retrieved 1 February 2015.

1. 347. Retrieved 1 February 2015.

1. 6305. Retrieved 24 June 2011.

1. 3601. Retrieved 24 June 2011.

1. ub30. Retrieved 1 February 2015.

## Bibliography

- Bendert, Harald (2000). *Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal* (in German). [Hamburg](/source/Hamburg): [Verlag E.S. Mittler & Sohn GmbH](/source/Verlag_E.S._Mittler_%26_Sohn_GmbH). ISBN 3-8132-0713-7.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). *U-boats and Mine Warfare Vessels*. Vol. 2. German Warships 1815–1945. 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*](https://books.google.com/books?id=QIvfAAAAMAAJ) (in German). Vol. I. [Munich](/source/Munich): [Bernard & Graefe](/source/Bernard_%26_Graefe). ISBN 3-7637-5213-7.

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Adapted from the Wikipedia article [SM UB-30](https://en.wikipedia.org/wiki/SM_UB-30) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/SM_UB-30?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.