SM UB-61
 UB-148 at sea, a U-boat similar to UB-61. | |
| Career (German Empire) |  |
|---|---|
| Name: | UB-61 |
| Ordered: | 20 May 1916[1] |
| Builder: | AG Vulcan, Hamburg[2] |
| Cost: | 3,279,000 German Papiermark[2] |
| Yard number: | 86[2] |
| Launched: | 28 April 1917[3] |
| Commissioned: | 23 June 1917[3] |
| Fate: | sunk 29 November 1917 by mine at 53°20′N 4°56′E / 53.333°N 4.933°ECoordinates: 53°20′N 4°56′E / 53.333°N 4.933°E, 34 dead[3] |
| General characteristics | |
| Class and type: | German Type UB III submarine |
| Type: | Coastal submarine |
| Displacement: | 508 t (500 long tons; 560 short tons) surfaced 639 t (629 long tons; 704 short tons) submerged[2] |
| Length: | 55.52 m (182.2 ft) o/a[2] |
| Beam: | 5.76 m (18.9 ft)[2] |
| Draught: | 3.70 m (12.1 ft)[2] |
| Propulsion: | 2 shafts 6-cylinder MAN diesel engines,[3] 1,100 ihp (820 kW) Siemens-Schuckert[3] electric motors, 788 ihp (588 kW)[2] |
| Speed: | 13.3 knots (24.6 km/h; 15.3 mph) surfaced 7.8 knots (14.4 km/h; 9.0 mph) submerged[2] |
| Range: | 8,420 nmi (15,590 km; 9,690 mi) at 6 kn (11 km/h; 6.9 mph) surfaced 55 nmi (102 km; 63 mi) at 4 kn (7.4 km/h; 4.6 mph) submerged[2] |
| Test depth: | 50 m (160 ft)[3] |
| Complement: | 3 officers, 31 men[3] |
| Armament: | • 5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) with 10 torpedoes • 1 × 8.8 cm (3.46 in) deck gun[3] |
| Service record | |
|---|---|
| Part of: |
Imperial German Navy: II Flotilla 6 Aug 1916 - 10 Sep 1917 V Flotilla 10 Sep 1917 - 29 Nov 1917 |
| Commanders: |
Oblt Theodor Schultz[4] 23 Jun 1917 - 29 Nov 1917 |
| Operations: | 3 patrols |
| Victories: | 2 merchant ships sunk (12,920 gross register tons (GRT)) |
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.[nb 1]
The submarine conducted 3 patrols and sank 2 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 / 53.333°N 4.933°E and sunk with all hands lost.[3]
Construction
UB-61 was ordered by the GIN on 20 May 1916.
She was built by AG Vulcan of Hamburg[2] 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).[2] UB-61 had a displacement of 508 t (500 long tons; 560 short tons) while surfaced and 639 t (629 long tons; 704 short 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.[2]
Summary of Raiding Career
| Date | Name | Nationality | Tonnage (GRT) |
Fate[5] |
|---|---|---|---|---|
| 25 August 1917 | Sycamore |  United Kingdom |
6,550 | Sunk |
| 26 August 1917 | Assyria | United Kingdom |
6,370 | Sunk |
Notes
- Footnotes
- ↑ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
- Citations
References
- Gröner, Erich (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. Die deutschen Kriegsschiffe, 1815-1945 (in German) III (Koblenz: Bernard & Graefe). ISBN 3-7637-4802-4.
- 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.
- Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 - 1945. Die deutschen U-Boote und ihre Werften (in German) I (Munich: Bernard & Graefe). ISBN 3-7637-5213-7.