SM UB-33

For other ships with the same name, see German submarine U-33.

SM UB-45, a U-boat similar to UB-33
History
German Empire
NameUB-33
Ordered22 July 1915[1]
BuilderBlohm & Voss, Hamburg[1]
Cost1,152,000 German Papiermark[2]
Yard number257[1]
Launched5 December 1915[1]
Completed20 April 1916[1]
Commissioned22 April 1916[2]
FateSunk 11 April 1918[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
  • 22 June 1916 - 24 October 1917
  • Flandern Flotilla
  • 24 October 1917 - 11 April 1918
Commanders:
  • Oblt. Herbert Lefholz
  • 22 April 1916 – 30 January 1917
  • Oblt. Waldemar von Fischer
  • 1 February – 21 March 1917
  • Oblt. Karl Ruprecht
  • 22 March – 16 September 1917
  • Oblt. Fritz Gregor
  • 17 September 1917 – 11 April 1918
Operations: 17 patrols
Victories:
  • 13 merchant ships sunk
    (5,390 GRT)
  • 2 merchant ships damaged
    (6,575 GRT)
  • 3 merchant ships taken as prize
    (1,527 GRT)

SM UB-33[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 5 December 1915. She was commissioned into the German Imperial Navy on 22 April 1916 as SM UB-33.

The submarine sank thirteen ships, damaged two others, and took a further three as prizes in seventeen patrols.[3]

  1. ^ a b c d e Rössler 1979, p. 64.
  2. ^ a b c d Gröner 1991, pp. 23–25.
  3. ^ Helgason, Guðmundur. "Ships hit by UB 33". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.


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