SM U-81
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For other ships of the same name, see German submarine U-81.
| Career (German Empire) |  |
|---|---|
| Name: | U-81 |
| Ordered: | 23 June 1915 |
| Builder: | Germaniawerft, Kiel |
| Yard number: | Werk 251 |
| Laid down: | 31 August 1915 |
| Launched: | 24 June 1916 |
| Commissioned: | 22 August 1916 |
| Fate: | 1 May 1917 - Torpedoed W of Ireland at 51°33′N 13°38′W / 51.550°N 13.633°WCoordinates: 51°33′N 13°38′W / 51.550°N 13.633°W by HM Sub E54. 31 dead, seven survivors.[1] |
| General characteristics | |
| Class & type: | German Type U 81 submarine |
| Displacement: |
808 tons surfaced 946 tons submerged 1160 tons (total) |
| Length: |
70.06 m (overall) 55.55 m (pressure hull) |
| Beam: |
6.30 m (overall) 4.15 m (pressure hull) |
| Draught: | 4.02 m |
| Propulsion: |
2400 hp surfaced 1200 hp submerged |
| Speed: |
16.8 knots surfaced 9.1 knots submerged |
| Range: | 11,220 miles at 8 knots surfaced 56 miles at 5 knots submerged |
| Complement: | 39 men |
| Armament: |
12 torpedoes (4/2 in bow/stern tubes) 105mm deck gun with 140 rounds [2] |
| Service record | |
|---|---|
| Part of: | Imperial German Navy |
| Commanders: |
Raimund Weisbach 22 Aug 1916 - 1 May 1917 |
| Operations: |
4 patrols |
SM U-81 was one of the 329 submarines serving in the Imperial German Navy (Kaiserliche Marine) in World War I. U-81 was engaged in the naval warfare and took part in the First Battle of the Atlantic.[3]
U-81 had one 10.5 cm gun with 140-240 rounds.[1] On 8 February 1917 she torpedoed the SS Mantola 143 miles off Fastnet, forcing her crew to abandon her. She then shelled the drifting hulk until being chased away by the Acacia-class sloop HMS Laburnum.[4] Laburnam took the floating hulk under tow, but the line parted in the rough seas, and Mantola was left to sink, which she did on 9 February.[4][5]
References
- ↑ 1.0 1.1 1.2 Uboat.net U81
- ↑ Uboat.net type 81
- ↑ "U-81". Retrieved 25 January 2010.
- ↑ 4.0 4.1 "SS Mantola 1916". clydesite.co.uk. Retrieved 2011-10-11.
- ↑ "SS Mantola WWI shipwreck reveals silver haul". BBC News Online. Retrieved 2011-10-11.
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