SM UB-81

For other ships with the same name, see German submarine U-81.

UB-148 at sea, a U-boat similar to UB-81.
History
German Empire
NameUB-81
Ordered23 September 1916[1]
BuilderAG Weser, Bremen
Cost3,341,000 German Papiermark
Yard number281
Laid down5 January 1917[2]
Launched18 August 1917[3]
Commissioned18 September 1917[3]
FateLost 2 December 1917 after striking a mine at 50°27′N 0°53′W / 50.450°N 0.883°W / 50.450; -0.883[3]
General characteristics [3]
Class and typeType UB III submarine
TypeCoastal submarine
Displacement
  • 516 t (508 long tons) surfaced
  • 647 t (637 long tons) submerged
Length55.85 m (183 ft 3 in) (o/a)
Beam5.80 m (19 ft)
Draught3.72 m (12 ft 2 in)
Propulsion
Speed
  • 13.4 knots (24.8 km/h; 15.4 mph) surfaced
  • 7.5 knots (13.9 km/h; 8.6 mph) submerged
Range
  • 8,180 nmi (15,150 km; 9,410 mi) at 6 knots (11 km/h; 6.9 mph) surfaced
  • 50 nmi (93 km; 58 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:
Operations: 2 patrols
Victories: 1 merchant ship sunk
(3,218 GRT)[5]

SM UB-81 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 into the German Imperial Navy on 18 September 1917 as SM UB-81.[Note 1]

UB-81 was sunk 2 December 1917 by a mine at 50°27′N 0°53′W / 50.450°N 0.883°W / 50.450; -0.883, 29 crew members died in the event.[3]

  1. ^ Rössler 1979, p. 55.
  2. ^ Cite error: The named reference UB-81 was invoked but never defined (see the help page).
  3. ^ a b c d e Gröner 1991, pp. 25–30.
  4. ^ Helgason, Guðmundur. "WWI U-boat commanders: Reinhold Saltzwedel (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 9 March 2015.
  5. ^ Helgason, Guðmundur. "Ships hit by UB 81". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 29 September 2010.


Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).