SM_UB-61
SM UB-61
German submarine
SM UB-61 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 23 June 1917 as SM UB-61.[Note 1]
UB-148 at sea, a U-boat similar to UB-61. | |
| History | |
|---|---|
 German Empire | |
| Name | UB-61 |
| Ordered | 20 May 1916[1] |
| Builder | AG Vulcan, Hamburg |
| Cost | 3,279,000 German Papiermark |
| Yard number | 86 |
| Launched | 28 April 1917[2] |
| Commissioned | 23 June 1917[2] |
| Fate | Sunk 29 November 1917 by mine at 53°20′N 4°56′E, 34 dead[2] |
| General characteristics [2] | |
| Class and type | German Type UB III submarine |
| Displacement |
|
| Length | 55.52 m (182 ft 2 in) (o/a) |
| Beam | 5.76 m (18 ft 11 in) |
| Draught | 3.70 m (12 ft 2 in) |
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men[2] |
| Armament |
|
| Service record | |
| Part of: |
|
| Commanders: |
|
| Operations: | 3 patrols |
| Victories: |
2 merchant ships sunk (12,920 GRT) |
The submarine conducted three patrols and sank two ships during the war for a total loss of 12,920 gross register tons (GRT).
UB-61 was struck by a mine on 29 November 1917 at 53°20′N 4°56′E and sunk with all hands lost.[2]
UB-61 was ordered by the GIN on 20 May 1916.
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 28 April 1917. UB-61 was commissioned later that same year . Like all Type UB III submarines, UB-61 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-61 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,420 nautical miles (15,590 km; 9,690 mi). UB-61 had a displacement of 508 t (500 long tons) while surfaced and 639 t (629 long tons) when submerged. Her engines enabled her to travel at 13.3 knots (24.6 km/h; 15.3 mph) when surfaced and 8 knots (15 km/h; 9.2 mph) when submerged.
| Date | Name | Nationality | Tonnage[Note 2] | Fate[4] |
|---|---|---|---|---|
| 25 August 1917 | Sycamore |  United Kingdom |
6,550 | Sunk |
| 26 August 1917 | Assyria | United Kingdom |
6,370 | Sunk |
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.
- Tonnages are in gross register tons
Citations
- Rössler 1979, p. 60.
- Gröner 1991, pp. 25–30.
- Helgason, Guðmundur. "WWI U-boat commanders: Theodor Schultz". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 2015.
- Helgason, Guðmundur. "Ships hit by UB 61". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 4 February 2015.
- Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal (in German). Hamburg: Verlag E.S. Mittler & Sohn GmbH. 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. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.