SM UB-61

Last updated
UB 148 at sea 2.jpeg
UB-148 at sea, a U-boat similar to UB-61.
History
War Ensign of Germany 1903-1918.svg German Empire
NameUB-61
Ordered20 May 1916 [1]
Builder AG Vulcan, Hamburg
Cost3,279,000 German Papiermark
Yard number86
Launched28 April 1917 [2]
Commissioned23 June 1917 [2]
FateSunk 29 November 1917 by mine at 53°20′N4°56′E / 53.333°N 4.933°E / 53.333; 4.933 , 34 dead [2]
General characteristics [2]
Class and type German Type UB III submarine
Displacement
  • 508  t (500 long tons) surfaced
  • 639 t (629 long tons) submerged
Length55.52 m (182 ft 2 in) (o/a)
Beam5.76 m (18 ft 11 in)
Draught3.70 m (12 ft 2 in)
Propulsion
Speed
  • 13.3 knots (24.6 km/h; 15.3 mph) surfaced
  • 7.8 knots (14.4 km/h; 9.0 mph) submerged
Range
  • 8,420  nmi (15,590 km; 9,690 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 [2]
Armament
Service record
Part of:
  • II Flotilla
  • 6 August 1916 – 10 September 1917
  • V Flotilla
  • 10 September – 29 November 1917
Commanders:
  • Oblt.z.S. Theodor Schultz [3]
  • 23 June – 29 November 1917
Operations: 3 patrols
Victories: 2 merchant ships sunk
(12,920  GRT)

SM UB-61 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 23 June 1917 as SM UB-61. [Note 1]

Contents

The submarine conducted three patrols and sank two ships during the war for a total loss of 12,920  gross register tons  (GRT).

UB-61 was struck by a mine on 29 November 1917 at 53°20′N4°56′E / 53.333°N 4.933°E / 53.333; 4.933 and sunk with all hands lost. [2]

Construction

UB-61 was ordered by the GIN on 20 May 1916.

She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 28 April 1917. UB-61 was commissioned later that same year . Like all Type UB III submarines, UB-61 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-61 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,420 nautical miles (15,590 km; 9,690 mi). UB-61 had a displacement of 508  t (500 long tons) while surfaced and 639 t (629 long tons) when submerged. Her engines enabled her to travel at 13.3 knots (24.6 km/h; 15.3 mph) when surfaced and 8 knots (15 km/h; 9.2 mph) when submerged.

Summary of raiding history

DateNameNationalityTonnage [Note 2] Fate [4]
25 August 1917 Sycamore Civil Ensign of the United Kingdom.svg  United Kingdom 6,550Sunk
26 August 1917 Assyria Civil Ensign of the United Kingdom.svg  United Kingdom 6,370Sunk

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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. 60.
  2. 1 2 3 4 5 6 Gröner 1991, pp. 25–30.
  3. ↑ Helgason, Guðmundur. "WWI U-boat commanders: Theodor Schultz". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 2015.
  4. ↑ Helgason, Guðmundur. "Ships hit by UB 61". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 2015.

Bibliography

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