 UB-148 at sea, a U-boat similar to UB-123.
| |
| History | |
|---|---|
 German Empire | |
| Name | UB-123 |
| Ordered | 6 / 8 February 1917[1] |
| Builder | AG Weser, Bremen |
| Cost | 3,654,000 German Papiermark |
| Yard number | 296 |
| Laid down | 13 July 1917[2] |
| Launched | 2 March 1918[3] |
| Commissioned | 6 April 1918[3] |
| Fate | Sunk 19 October 1918[3] |
| General characteristics [3] | |
| Class and type | Type UB III submarine |
| Displacement | |
| 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 |
|
| Range |
|
| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men[3] |
| Armament |
|
| Service record | |
| Part of: |
|
| Commanders: |
|
| Operations: | 2 patrols |
| Victories: | |
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.[Note 1]
She torpedoed and sunk Leinster, a vessel operated by the City of Dublin Steam Packet Company on 10 October 1918, shortly after the new parliamentary based German Government under Max von Baden had asked U.S. President Woodrow Wilson to negotiate an armistice.
Leinster went down just outside Dublin Bay. Over 500 people perished in the sinking – the greatest single loss of life in the Irish Sea.
UB-123 struck a mine at the North Sea Mine Barrage on 19 October 1918, all 36 crew members died in the event.[3]
- ^ Rössler 1979, p. 55.
- ^ Helgason, Guðmundur. "WWI U-boats: UB 123". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 13 February 2009.
- ^ a b c d e f Gröner, Jung & Maass 1991, pp. 25–30.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Robert Ramm". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 10 March 2015.
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