SM UB-123
 UB-148 at sea, a U-boat similar to UB-123. | |
| Career (German Empire) |  |
|---|---|
| Name: | UB-123 |
| Ordered: | 6/8 February 1917[1] |
| Builder: | AG Weser, Bremen[2] |
| Cost: | 3,654,000 German Papiermark[2] |
| Yard number: | 296[2] |
| Launched: | 2 March 1918[3] |
| Commissioned: | 6 April 1918[3] |
| Fate: | Sunk 19 October 1918.[3] |
| General characteristics | |
| Class & type: | German Type UB III submarine |
| Type: | Coastal submarine |
| Displacement: |
512 t (504 long tons; 564 short tons) surfaced 643 t (633 long tons; 709 short tons) submerged[2] |
| Length: | 55.85 m (183.2 ft) o/a[2] |
| Beam: | 5.8 m (19 ft)[2] |
| Draught: | 3.72 m (12.2 ft)[2] |
| Propulsion: |
2 shafts 6-cylinder Körting diesel engines,[4] 1,060 ihp (790 kW) Siemens-Schuckert[4] electric motors, 788 ihp (588 kW)[2] |
| Speed: |
13.9 knots (25.7 km/h; 16.0 mph) surfaced 7.6 knots (14.1 km/h; 8.7 mph) submerged[2] |
| Range: |
7,280 nmi (13,480 km; 8,380 mi) at 6 kn (11 km/h; 6.9 mph) surfaced 55 nmi (102 km; 63 mi) at 4 kn (7.4 km/h; 4.6 mph) submerged[2] |
| Test depth: | 50 m (160 ft)[4] |
| Complement: | 3 officers, 31 men[4] |
| Armament: |
• 5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) with 10 torpedoes • 1 × 10.5 cm (4.13 in) deck gun[4] |
| Service record | |
|---|---|
| Part of: |
German Imperial Navy[2] |
| Commanders: |
|
SM UB-123 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 6 April 1918 as SM UB-123.[nb 1]
UB-123 struck a mine at the North Sea Mine Barrage on 19 October 1918, all 36 crew members died in the event.[3]
Construction
She was built by AG Weser of Bremen[2] and following just under a year of construction, launched at Bremen on 2 March 1918. UB-123 was commissioned later the same year . Like all Type UB III submarines, UB-123 carried 10 torpedoes and was armed with a 10.5 cm (4.13 in) deck gun. UB-123 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).[2] UB-123 had a displacement of 512 t (504 long tons; 564 short tons) while surfaced and 643 t (633 long tons; 709 short 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.[2]
Notes
- Footnotes
- ↑ "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
References
- Gröner, Erich (1985). "U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher". Die deutschen Kriegsschiffe, 1815-1945 III (Koblenz: Bernhard&Graefe). ISBN 3-7637-4802-4.
- Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal. Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7.
- 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 I (Munich: Bernhard&Graefe). ISBN 3-7637-5213-7.