SM UB-122

SM UB-122 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 4 March 1918 as SM UB-122.[Note 1]

UB-148 at sea, a U-boat similar to UB-122.
History
German Empire
Name: UB-122
Ordered: 6/8 February 1917[1]
Builder: AG Weser, Bremen
Cost: 3,654,000 German Papiermark
Yard number: 295
Launched: 2 February 1918[2]
Commissioned: 4 March 1918[2]
Fate: Surrendered 24 November 1918.[2]
General characteristics [2]
Class and type: German Type UB III submarine
Displacement:
  • 512 t (504 long tons) surfaced
  • 643 t (633 long tons) submerged
Length: 55.85 m (183 ft 3 in) (o/a)
Beam: 5.80 m (19 ft)
Draught: 3.72 m (12 ft 2 in)
Propulsion:
Speed:
  • 13.9 knots (25.7 km/h; 16.0 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range:
  • 7,280 nmi (13,480 km; 8,380 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 depth: 50 m (160 ft)
Complement: 3 officers, 31 men[2]
Armament:
Service record
Part of:
  • III Flotilla
  • 7 July – 11 November 1918
Commanders:
  • Oblt.z.S. Alexander Magnus[3]
  • 4 March – 11 November 1918
Operations: 2 patrols
Victories: None

UB-122 was surrendered to the British on 24 November 1918 in accordance with the requirements of the Armistice with Germany. She may have been broken up in 1921,[2] have been marooned on a sandbank[4] at Hoo on the River Medway,[5][6] or have foundered in the North Sea off the east coast of England in 1921.[7]

Construction

She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 4 March 1918. UB-122 was commissioned later the same year under the command of Oblt.z.S. Alexander Magnus. Like all Type UB III submarines, UB-122 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-122 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,280 nautical miles (13,480 km; 8,380 mi). UB-122 had a displacement of 512 t (504 long tons) while surfaced and 643 t (633 long tons) when submerged. Her engines enabled her to travel at 13.9 knots (25.7 km/h; 16.0 mph) when surfaced and 7.6 knots (14.1 km/h; 8.7 mph) when submerged.

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.

Citations

  1. Rössler 1979, p. 55.
  2. Gröner 1991, pp. 25-30.
  3. Helgason, Guðmundur. "WWI U-boat commanders: Alexander Magnus". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 March 2015.
  4. Wreck location shown on Google Maps https://maps.google.co.uk/maps?q=51.430667,0.631983&hl=en&ll=51.430636,0.632014&spn=0.000741,0.002382&sll=52.8382,-2.327815&sspn=5.88034,19.511719&t=h&z=19
  5. Historic wreckage of German First World War U-boat revealed in low tide Daily Telegraph, 20 Dec 2013
  6. ANNA EDWARDS (20 December 2013). "A monster off the British coast: Rusting hulk of World War One German U-boat emerges after almost a century". Mail Online.
  7. "UB 122". Uboat.net. Retrieved 16 November 2012.

Bibliography

  • Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7.
  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 – 1945. Die deutschen U-Boote und ihre Werften (in German). I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.

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