SM UB-122

For other ships with the same name, see German submarine U-122.

History
UB-148 at sea, a U-boat similar to UB-122.
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 (19.0 ft)
Draught:	3.72 m (12 ft 2 in)
Propulsion:	2 × propeller shaft 2 × Körting four-stroke 6-cylinder diesel engines, 1,050 bhp (780 kW) 2 × Siemens-Schuckert electric motors, 780 shp (580 kW)
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:	5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) 10 torpedoes 1 × 8.8 cm (3.46 in) deck gun
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

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-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

Main article: German Type UB III submarine

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

↑ "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

↑ Rössler 1979, p. 55.
1 2 3 4 5 6 Gröner 1991, pp. 25-30.
↑ 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.
↑ 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
↑ Historic wreckage of German First World War U-boat revealed in low tide Daily Telegraph, 20 Dec 2013
↑ 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.
↑ "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.

German Type UB III submarines

SM UB-48 SM UB-49 SM UB-50 SM UB-51 SM UB-52 SM UB-53 SM UB-54 SM UB-55 SM UB-56 SM UB-57 SM UB-58 SM UB-59 SM UB-60 SM UB-61 SM UB-62 SM UB-63 SM UB-64 SM UB-65 SM UB-66 SM UB-67 SM UB-68 SM UB-69 SM UB-70 SM UB-71 SM UB-72 SM UB-73 SM UB-74 SM UB-75 SM UB-76 SM UB-77 SM UB-78 SM UB-79 SM UB-80 SM UB-81 SM UB-82 SM UB-83 SM UB-84 SM UB-85 SM UB-86 SM UB-87 SM UB-88 SM UB-89 SM UB-90 SM UB-91 SM UB-92 SM UB-93 SM UB-94 SM UB-95 SM UB-96 SM UB-97 SM UB-98 SM UB-99 SM UB-100 SM UB-101 SM UB-102 SM UB-103 SM UB-104 SM UB-105 SM UB-106 SM UB-107 SM UB-108 SM UB-109 SM UB-110 SM UB-111 SM UB-112 SM UB-113 SM UB-114 SM UB-115 SM UB-116 SM UB-117 SM UB-118 SM UB-119 SM UB-120 SM UB-121 SM UB-122 SM UB-123 SM UB-124 SM UB-125 SM UB-126 SM UB-127 SM UB-128 SM UB-129 SM UB-130 SM UB-131 SM UB-132 SM UB-133 SM UB-136 SM UB-142 SM UB-143 SM UB-144 SM UB-145 SM UB-148 SM UB-149 SM UB-150 SM UB-154 SM UB-155

Preceded by: Type UB II Followed by: Type VII (World War II)

Shipwrecks and maritime incidents in 1921

Shipwrecks	3 Jan: UB-88 20 Jan: HMS K5 31 Jan: Carroll A. Deering January (unknown date): Baden, Hewitt 9 Feb: HMS Hydra 21 Feb: USS Woolsey 3 Mar: Hong Moh 4 Mar: Carroll A. Deering March (unknown date): USS Conestoga 13 May: Miztec 14 May: Wollongbar 23 May: USS Granite State 26 May: Esperanto 7 Jun: U-151, UC-97 21 Jun: USS G-1 22 Jun: U-177 24 Jun: HMS K15 26 Jun: Fitzroy 30 Jun: U-152, U-153 1 Jul: U-121 11 Jul: General Pershing 18 Jul: Frankfurt 21 Jul: Ostfriesland 22 Jul: U-140 16 Aug: Baden 3 Sep: Abessinia 26 Sep: USS R-6 27 Sep: USS Alabama 7 Oct: USS Herreshoff No. 321 8 Oct: Rowan 3 Nov: Carrier Dove 30 Nov: Guvernøren 1 Dec: USS DeLong 7 Dec: USS S-48 Unknown date: Equity, Rüsumat No 4, U-86, U-161, UB-122

Other incidents	29 Jan: España 18 Apr: Iron Monarch May (unknown date): USS R-14 8 Jul: Western Comet 19 Aug: King Orry

1920 1922

Coordinates: 51°25′51″N 0°37′55″E / 51.4307°N 0.6319°E / 51.4307; 0.6319

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