SM UB-123
German U-boat / From Wikipedia, the free encyclopedia
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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]
 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 | German Type UB III submarine |
| Displacement |
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| 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 |
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| Speed |
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| Range |
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| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men[3] |
| Armament |
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| Service record | |
| Part of: |
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| Commanders: |
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| Operations: | 2 patrols |
| Victories: | |
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]
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