SM UB-103

For other ships with the same name, see German submarine U-103.
UB-148 at sea, a U-boat similar to UB-103.
History
German Empire
NameUB-103
Ordered6 / 8 February 1917[1]
BuilderBlohm & Voss, Hamburg
Cost3,714,000 German Papiermark
Yard number309
Launched7 July 1917[2]
Commissioned18 December 1917[2]
FateSunk 14 August 1918 at 50°52′N 1°27′E / 50.867°N 1.450°E / 50.867; 1.450[2]
General characteristics [2]
Class and typeType UB III submarine
Displacement
  • 510 t (500 long tons) surfaced
  • 629 t (619 long tons) submerged
Length55.30 m (181 ft 5 in) (o/a)
Beam5.80 m (19 ft)
Draught3.70 m (12 ft 2 in)
Propulsion
Speed
  • 13.3 knots (24.6 km/h; 15.3 mph) surfaced
  • 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range
  • 7,420 nmi (13,740 km; 8,540 mi) at 6 knots (11 km/h; 6.9 mph) surfaced
  • 55 nmi (102 km; 63 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth50 m (160 ft)
Complement3 officers, 31 men
Armament
Service record
Part of:
Commanders:
  • Kptlt. Paul Hundius[3]
  • 18 December 1917 – 14 August 1918
Operations: 6 patrols
Victories: 15 merchant ships sunk
(25,999 GRT)

SM UB-103 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned on 18 December 1917 as SM UB-103.[Note 1]

UB-103 was sunk in the English Channel by British warships and SSZ 1, a SSZ class blimp.[2] All hands were lost.[4]

  1. ^ Rössler 1979, p. 66.
  2. ^ a b c d e Gröner 1991, pp. 25–30.
  3. ^ Helgason, Guðmundur. "WWI U-boat commanders: Paul Hundius (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.
  4. ^ "WWI U-boats UB 103". uboat.net. Guðmundur Helgason. Retrieved 16 June 2021.


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