SM UB-73
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 UB-148 at sea, a U-boat similar to UB-73. | |
| History | |
|---|---|
 German Empire | |
| Name | UB-73 |
| Ordered | 23 September 1916[1] |
| Builder | AG Vulcan, Hamburg |
| Cost | 3,337,000 German Papiermark |
| Yard number | 97 |
| Launched | 11 August 1917[2] |
| Commissioned | 2 October 1917[2] |
| Fate | Surrendered to the French on 21 November 1918, broken up at Brest July 1921.[2] |
| General characteristics [2] | |
| Class & type | 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 |
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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[2] |
| Armament |
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| Service record | |
| Part of |
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| Commanders | |
| Operations | 6 patrols |
| Victories |
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SM UB-73 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 2 October 1917 as SM UB-73.[Note 1]
UB-73 was serving in the Mediterranean. On 21 November 1918 she was surrendered to France as required by the regulations of the Armistice with Germany.[2]
UB-72 was ordered by the GIN on 23 September 1916.
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 11 August 1917. UB-73 was commissioned later that same year . Like all Type UB III submarines, UB-73 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-73 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-73 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 13.4 knots (24.8 km/h; 15.4 mph) when surfaced and 7.5 knots (13.9 km/h; 8.6 mph) when submerged.
