SM UB-122

	UB-148 at sea, a U-boat similar to UB-122.
History
German Empire
Name	UB-122
Ordered	6 / 8 February 1917
Builder	AG Weser, Bremen
Cost	3,654,000 German Papiermark
Yard number	295
Laid down	21 May 1917
Launched	2 February 1918
Commissioned	4 March 1918
Fate	Surrendered 24 November 1918; scuttled English channel 1 July 1921
General characteristics
Class & type	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	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
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; 4 March – 11 November 1918;
Operations	2 patrols
Victories	None

NameUB-122

Ordered6 / 8 February 1917^[1]

BuilderAG Weser, Bremen

Cost3,654,000 German Papiermark

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 Allies at Harwich on 20 November 1918 in accordance with the requirements of the Armistice with Germany. Having been exhibited at Southampton in December 1918, she was then laid up at Portsmouth until scuttled in the English Channel on 1 July 1921.^[5]

Although contemporary Admiralty documents leave no room for doubt as to UB-122's fate, her name has become widely associated^[6] with one of three submarine-wrecks in the Medway,^[7]^[8] which another Admiralty document makes clear can only be one of UB-144, UB-145 or UB-150.^[9]

[1]

[2]

[3]

[4]

[Note 1]

[5]

[6]

[7]

[8]

[9]

v t e 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)
List of U-boats of Germany

v t e Shipwrecks and maritime incidents in 1921
Shipwrecks	3 Jan: UB-88 6 Jan: USS Coast Defense Battleship No. 2 20 Jan: HMS K5 31 Jan: Carroll A. Deering January (unknown date): SMS Baden, HMS Europa, Hewitt 9 Feb: HMS Hydra 21 Feb: USS Woolsey 3 Mar: Hong Moh 4 Mar: Carroll A. Deering 13 Mar: Leonita 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: Mopang, U-152, U-153 1 Jul: U-121 11 Jul: General Pershing 13 Jul: SMS G102 15 Jul: V43 18 Jul: Frankfurt 21 Jul: Ostfriesland 22 Jul: U-140 16 Aug: Baden 26 Aug: City of Brunswick 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 30 Dec: HMS Prince George 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 Jul: Submarine No. 24 27 Jul: Animoso 17 Aug: Maurice Callot 19 Aug: King Orry 29 Aug: Maurice Callot Unknown date: USLHT Azalea
1920 1922

SM UB-122

References

Notes

Citations

Bibliography

Related Articles

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
Laid down	21 May 1917^[2]
Launched	2 February 1918^[3]
Commissioned	4 March 1918^[3]
Fate	Surrendered 24 November 1918; scuttled English channel 1 July 1921


General characteristics ^[3]
Class & type	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	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^[3]
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^[4] 4 March – 11 November 1918
Operations	2 patrols
Victories	None