SM UB-81
UB-148 at sea, a U-boat similar to UB-81. | |
| History | |
|---|---|
| German Empire | |
| Name | UB-81 |
| Ordered | 23 September 1916 |
| Builder | AG Weser, Bremen |
| Cost | 3,341,000 German Papiermark |
| Yard number | 281 |
| Laid down | 5 January 1917 |
| Launched | 18 August 1917 |
| Commissioned | 18 September 1917 |
| Fate | Lost 2 December 1917 after striking a mine at 50°27′N 0°53′W / 50.450°N 0.883°W |
| General characteristics | |
| Class & type | Type UB III submarine |
| Type | Coastal 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 |
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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 |
| Armament |
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| Service record | |
| Part of: |
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| Commanders: |
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| Operations: | 2 patrols |
| Victories: |
1 merchant ship sunk (3,218 GRT) |
SM UB-81 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 18 September 1917 as SM UB-81.
UB-81 was sunk 2 December 1917 by a mine at 50°27′N 0°53′W / 50.450°N 0.883°W, 29 crew members died in the event.