For other ships named German submarine U-30, see German submarine U-30 (disambiguation).
UB-30
CountryGerman Empire
Ordered22 July 1915[1]
BuilderBlohm & Voss, Hamburg[1]
Original cost1,152,000 German Papiermark[2]
Yard number254[1]
Launched16 November 1915[1]
Completed16 March 1916[1]
Commissioned18 March 1916[2]
FateSunk 13 August 1918[2]
SM UB-30
ClassType UB II submarine
Displacement
  • 274 t (270 long tons) surfaced
  • 303 t (298 long tons) submerged
Length
Beam
  • 4.37 m (14 ft 4 in) o/a
  • 3.85 m (12 ft 8 in) pressure hull
Draught3.69 m (12 ft 1 in)
Propulsion
Speed
  • 9.06 knots (16.78 km/h; 10.43 mph) surfaced
  • 5.71 knots (10.57 km/h; 6.57 mph) submerged
Range
  • 7,030 nmi (13,020 km; 8,090 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced
  • 45 nmi (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth50 m (160 ft)
Complement2 officers, 21 men
Armament
Notes42-second diving time
SM UB-30
Partof
  • Baltic Flotilla
  • 8 May 1916 – 23 February 1917
  • Flandern Flotilla
  • 23 February 1917 – 13 August 1918
Commanders
  • Kptlt. Kurt Schapler[3]
  • 18 March – 1 October 1916
  • Oblt.z.S. Freiherr Cassius von Montigny[4]
  • 2 October 1916 – 7 August 1917
  • Kptlt. Wilhelm Rhein[5]
  • 8 August 1917 – 21 April 1918
  • Oblt.z.S. Rudolf Steir[6]
  • 22 April – 13 August 1918
Operations19 patrols
Victories
  • 18 merchant ships sunk
    ()
  • 2 merchant ships damaged
    ()

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′N 1°46′E on 13 August 1918.[2]

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 hp; 200 kW), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 hp), 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

DateNameNationalityTonnage[Note 2]Fate[9]
21 October 1916AugustSweden346Sunk
23 October 1916EllySweden88Sunk
24 October 1916ElinRussian Empire127Sunk
24 October 1916IngersollRussian Empire239Sunk
24 October 1916Jenny LindRussian Empire53Sunk
24 October 1916UrpoRussian Empire111Sunk
31 August 1917VernonUnited Kingdom982Sunk
3 September 1917RagnhildUnited Kingdom1,495Sunk
26 September 1917S.N.A. 3France1,709Sunk
12 November 1917Morning StarUnited Kingdom129Sunk
3 January 1918GartlandUnited Kingdom2,613Sunk
5 January 1918Glenarm HeadUnited Kingdom3,908Sunk
12 January 1918WhorltonUnited Kingdom1,469Sunk
2 February 1918JaffaUnited Kingdom1,383Sunk
9 February 1918ArmeniaUnited States5,463Damaged
5 March 1918Clan MackenzieUnited Kingdom6,544Damaged
7 March 1918Braatt IINorway1,834Sunk
16 March 1918LightfootUnited Kingdom1,873Sunk
18 June 1918Norfolk CoastUnited Kingdom782Sunk
10 August 1918Madame ReneeUnited Kingdom509Sunk

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.
  2. ^ Tonnages are in gross register tons

Citations

  1. ^ Rössler 1979, p. 64.
  2. ^ Gröner 1991, pp. 23–25.
  3. ^ 288. Retrieved 1 February 2015.
  4. ^ 212. Retrieved 1 February 2015.
  5. ^ 267. Retrieved 1 February 2015.
  6. ^ 347. Retrieved 1 February 2015.
  7. ^ 6305. Retrieved 24 June 2011.
  8. ^ 3601. Retrieved 24 June 2011.
  9. ^ ub30. Retrieved 1 February 2015.

Bibliography