SM UB-30

SM UB-45, a U-boat similar to UB-30
History
German Empire
NameUB-30
Ordered22 July 1915[1]
BuilderBlohm & Voss, Hamburg[1]
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 by British warships[2]
General characteristics [2]
Class and typeType 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
Service record
Part of:
  • 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
Operations: 19 patrols
Victories:
  • 18 merchant ships sunk
    (19,650 GRT)
  • 2 merchant ships damaged
    (12,007 GRT)

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 / 51.150°N 1.767°E / 51.150; 1.767 on 13 August 1918.[2]

  1. ^ a b c d e Rössler 1979, p. 64.
  2. ^ a b c d e Gröner 1991, pp. 23–25.
  3. ^ 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.
  4. ^ 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.
  5. ^ 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.
  6. ^ 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.
  7. ^ Helgason, Guðmundur. "Ships hit during WWI: Vernon". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 24 June 2011.
  8. ^ Helgason, Guðmundur. "Ships hit during WWI: Lightfoot". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 24 June 2011.


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