SM UB-121
 UB-148 at sea, a U-boat similar to UB-121.
| |
| History | |
|---|---|
 German Empire | |
| Name | UB-121 |
| Ordered | 6/8 February 1917[1] |
| Builder | AG Weser, Bremen |
| Cost | 3,654,000 German Papiermark |
| Yard number | 294 |
| Launched | 6 January 1918[2] |
| Commissioned | 10 February 1918[2] |
| Fate | Surrendered 20 November 1918.[2] |
| General characteristics [2] | |
| Class and type | German Type UB III submarine |
| Displacement |
|
| 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 |
|
| Speed |
|
| Range |
|
| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men[2] |
| Armament |
|
| Service record | |
| Part of: |
|
| Commanders: |
|
| Operations: | 3 patrols |
| Victories: | None |
SM UB-121 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 10 February 1918 as SM UB-121.[Note 1]
UB-121 was surrendered to France on 20 November 1918 in accordance with the requirements of the Armistice with Germany. She was broken up in Toulon in July 1921 after being used for underwater demolition training.[2]
Construction
She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 6 January 1918. UB-121 was commissioned later the same year under the command of Oblt.z.S. Albrecht Schmidt. Like all Type UB III submarines, UB-121 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-121 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-121 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.
- ^ a b c d e f Gröner 1991, pp. 25–30.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Albrecht Schmidt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 March 2015.
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.
{{cite book}}: Invalid|ref=harv(help) - Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
{{cite book}}:|work=ignored (help); Cite has empty unknown parameter:|last-author-amp=(help) - Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 – 1945 (in German). Vol. I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.
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