SM UB-103
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 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 |
| Cost | 3,714,000 German Papiermark |
| Yard number | 309 |
| Launched | 7 July 1917[2] |
| Commissioned | 18 December 1917[2] |
| Fate | Sunk 14 August 1918[2] |
| General characteristics [2] | |
| Class & type | Type UB III submarine |
| Displacement | |
| Length | 55.30 m (181 ft 5 in) (o/a) |
| Beam | 5.80 m (19 ft) |
| Draught | 3.70 m (12 ft 2 in) |
| Propulsion |
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| Speed |
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| Range |
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| Test depth | 50 m (160 ft) |
| Complement | 3 officers, 31 men |
| Armament |
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| Service record | |
| Part of |
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| Commanders |
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| 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 (German: Kaiserliche Marine) during World War I. She was commissioned on 18 December 1917 as SM UB-103.[Note 1]
UB-103 was sunk in the English Channel at 50°52′N 1°27′E / 50.867°N 1.450°E by British warships and SSZ 1, a SSZ class airship.[2] All hands were lost.[4]
She was built by Blohm & Voss of Hamburg and, after 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 had a crew of up to three officers and 31 men, and its cruising range was 7,420 nautical miles (13,740 km; 8,540 mi). UB-103 had a displacement of 510 t (500 long tons) while surfaced and 629 t (619 long 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.
