SM UB-103
 UB-148 at sea, a U-boat similar to UB-103.
| |
| History | |
|---|---|
 German Empire | |
| Name | UB-103 |
| Ordered | 6/8 February 1917[1] |
| Builder | Blohm & Voss, Hamburg[2] |
| Cost | 3,714,000 German Papiermark[2] |
| Yard number | 309[2] |
| Launched | 7 July 1917[3] |
| Commissioned | 18 December 1917[3] |
| Fate | sunk 16 September 1918 at 50°52′N 1°27′E / 50.867°N 1.450°E[3] |
| General characteristics | |
| Class and type | German Type UB III submarine |
| Type | Coastal submarine |
| Displacement | list error: <br /> list (help) 510 t (502 long tons; 562 short tons) surfaced 629 t (619 long tons; 693 short tons) submerged[2] |
| Length | 55.3 m (181 ft) o/a[2] |
| Beam | 5.8 m (19 ft)[2] |
| Draught | 3.7 m (12 ft)[2] |
| Propulsion | list error: <br /> list (help) 2 shafts 6-cylinder MAN-Vulcan diesel engines,[4] 1,100 ihp (820 kW) Siemens-Schuckert[4] electric motors, 788 ihp (588 kW)[2] |
| Speed | list error: <br /> list (help) 13.3 knots (24.6 km/h; 15.3 mph) surfaced 7.5 knots (13.9 km/h; 8.6 mph) submerged[2] |
| Range | list error: <br /> list (help) 7,420 nmi (13,740 km; 8,540 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)[4] |
| Complement | 3 officers, 31 men[4] |
| Armament | list error: <br /> list (help) • 5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern) with 10 torpedoes • 1 × 8.8 cm (3.46 in) deck gun[4] |
| Service record | |
| Part of: |
list error: <br /> list (help) Flanders Flotilla 8 Mar 1918 - 16 Sep 1918 |
| Commanders: |
list error: <br /> list (help) Kptlt Paul Hundius[5] 18 Dec 1917 –16 Sep 1918 |
| Operations: | 6 patrols |
| Victories: | 15 merchant ships sunk (25,999 GRT) |
SM UB-103 was a German Type UB III submarine or U-boat in the German Imperial Navy (Template:Lang-de) during World War I. She was commissioned into the German Imperial Navy on 18 December 1917 as SM UB-103.[nb 1]
UB-103 was sunk in the English Channel by British warships and SSZ 1, a SSZ class blimp.[3]
Construction
She was built by Blohm & Voss of Hamburg[2] and following just under a year of construction, launched at Hamburg on 7 July 1917. UB-103 was commissioned later the same year under the command of Kptlt Paul Hundius. Like all Type UB III submarines, UB-103 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-103 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,420 nautical miles (13,740 km).[2] UB-103 had a displacement of 510 t (502 long tons; 562 short tons) while surfaced and 629 t (619 long tons; 693 short tons) when submerged. Her engines enabled her to travel at 13.3 knots (24.6 km/h; 15.3 mph) when surfaced and 7.4 knots (13.7 km/h; 8.5 mph) when submerged.[2]
Summary of Raiding Career
| Date | Name | Nationality | Tonnage (GRT) |
Fate[6] |
|---|---|---|---|---|
| 20 March 1918 | Eros |  Sweden
|
858 | Sunk |
| 21 March 1918 | Tyrhaug |  United Kingdom
|
1,483 | Sunk |
| 24 March 1918 | Anteros | United Kingdom
|
4,241 | Sunk |
| 22 April 1918 | Eric Calvert | United Kingdom
|
1,862 | Sunk |
| 28 April 1918 | Elba | United Kingdom
|
1,081 | Sunk |
| 2 May 1918 | Thorsa | United Kingdom
|
1,319 | Sunk |
| 3 May 1918 | Vasilefs Georgios |  Greece
|
3,651 | Sunk |
| 10 June 1918 | Borg | United Kingdom
|
2,111 | Sunk |
| 11 June 1918 | Lorle | United Kingdom
|
2,686 | Sunk |
| 12 June 1918 | Kul | United Kingdom
|
1,095 | Sunk |
| 11 July 1918 | Kong Guttorm |  Norway
|
731 | Sunk |
| 15 July 1918 | Cap Breton |  France
|
1,464 | Sunk |
| 15 July 1918 | Vendee | France
|
892 | Sunk |
| 16 July 1918 | Lyndiane | France
|
1,564 | Sunk |
| 21 July 1918 | Arvor | France
|
961 | Sunk |
Notes
- Footnotes
- ^ "SM" stands for "Seiner Majestät" (Template:Lang-en) 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 (in German). Vol. III. Koblenz: Bernard & Graefe. ISBN 3-7637-4802-4.
{{cite book}}:|work=ignored (help); Invalid|ref=harv(help) - 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.
{{cite book}}: Invalid|ref=harv(help) - Rössler, Eberhard (1979). U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 - 1945 (in German). Vol. I. Munich: Bernard & Graefe. ISBN 3-7637-5213-7.
{{cite book}}:|work=ignored (help); Invalid|ref=harv(help)