SM UB-128
UB-148 at sea, a U-boat similar to UB-128. | |
| History | |
|---|---|
| German Empire | |
| Name | UB-128 |
| Ordered | 6 / 8 February 1917 |
| Builder | AG Weser, Bremen |
| Cost | 3,654,000 German Papiermark |
| Yard number | 301 |
| Laid down | 20 July 1917 |
| Launched | 10 April 1918 |
| Commissioned | 11 May 1918 |
| Fate | Surrendered 3 February 1919; used for explosive trials and dumped on beach 1921; sold for scrap 1921 |
| General characteristics | |
| Class & 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 |
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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 (7,418 GRT) |
SM UB-128 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 11 May 1918 as SM UB-128.
UB-128 was surrendered to the Allies at Harwich on 3 February 1919 in accordance with the requirements of the Armistice with Germany. After passing into British hands, UB-128 was towed to Falmouth along with five other U-boats for use in a series of explosive test trials by the Royal Navy in Falmouth Bay, in order to find weaknesses in their design. Following her use on 1 February 1921, UB-128 was dumped on Castle Beach and sold to R. Roskelly & Rodgers on 19 April 1921 for scrap (for £120), and partially salvaged over the following decades, although parts remain in situ.