SM UB-25
 SM UB-45, a U-boat similar to UB-25
| |
| History | |
|---|---|
 German Empire | |
| Name | UB-25 |
| Ordered | 30 April 1915[1] |
| Builder | AG Weser, Bremen[1] |
| Cost | 1,291,000 German Papiermark |
| Yard number | 239[1] |
| Laid down | 30 June 1915 |
| Launched | 22 November 1915[1] |
| Commissioned | 11 December 1915 |
| Fate | Sunk in accident 19 March 1917; salvaged; surrendered 26 November 1918; scrapped 1919. |
| General characteristics [2] | |
| Class and type | Type UB II submarine |
| Displacement | |
| Length |
|
| Beam |
|
| Draught | 3.66 m (12 ft) |
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 50 m (160 ft) |
| Complement | 2 officers, 21 men |
| Armament |
|
| Notes | 30-second diving time |
| Service record | |
| Commanders: |
|
| Operations: | No patrols |
| Victories: | None |
SM UB-25 was a German
British Admiralty to George Cohen on 3 March 1919 for £750 (excluding her engines), and was broken up at Canning Town.[4]
Design
A
propeller shaft. She was capable of operating at depths of up to 50 metres (160 ft).[2]
The submarine had a maximum surface speed of 8.90 knots (16.48 km/h; 10.24 mph) and a maximum submerged speed of 5.72 knots (10.59 km/h; 6.58 mph). When submerged, she could operate for 45 nautical miles (83 km; 52 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 7,200 nautical miles (13,300 km; 8,300 mi) at 5 knots (9.3 km/h; 5.8 mph). UB-25 was fitted with two 50 centimetres (20 in) torpedo tubes, four torpedoes, and one 5 cm (2.0 in) SK L/40 deck gun. She had a complement of twenty-one crew members and two officers and a thirty-second dive time.[2]
Notes
- ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
References
- ^ a b c d Rössler 1979, p. 54.
- ^ a b c Gröner 1991, pp. 23–25.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Nieland". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 8 March 2015.
- ISBN 978-1-5267-4198-1.
Bibliography
- Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). ISBN 3-8132-0713-7.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Rössler, Eberhard (1979). Die deutschen U-Boote und ihre Werften: eine Bilddokumentation über den deutschen U-Bootbau; in zwei Bänden (in German). Vol. I. ISBN 3-7637-5213-7.