![]() UB-148 at sea, a U-boat similar to UB-78. | |
History | |
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Name | UB-78 |
Ordered | 23 September 1916 [1] |
Builder | Blohm & Voss, Hamburg |
Cost | 3,338,000 German Papiermark |
Yard number | 307 |
Launched | 2 June 1917 [2] |
Commissioned | 20 October 1917 [2] |
Fate | Mined off Dover in position 51°01′N01°17′E / 51.017°N 1.283°E on 19 April 1918 all 35 crew lost. [3] |
General characteristics | |
Class and type | Type UB III submarine |
Displacement | |
Length | 55.30 m (181 ft 5 in) (o/a) |
Beam | 5.80 m (19 ft) |
Draught | 3.68 m (12 ft 1 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: | 5 patrols |
Victories: |
SM UB-78 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 20 October 1917 as SM UB-78. [Note 1] Mined off Dover on 19 April 1918 all 35 crew lost. [3]
She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 2 June 1917. UB-78 was commissioned later that same year under the command of Kptlt. Woldemar Petri. Like all Type UB III submarines, UB-78 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-78 would carry a crew of up to 3 officers and 31 men and had a cruising range of 8,680 nautical miles (16,080 km; 9,990 mi). UB-78 had a displacement of 516 t (508 long tons) while surfaced and 648 t (638 long tons) when submerged. Her engines enabled her to travel at 13.6 knots (25.2 km/h; 15.7 mph) when surfaced and 7.8 knots (14.4 km/h; 9.0 mph) when submerged. [2]
Date | Name | Nationality | Tonnage [Note 2] | Fate [7] |
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21 March 1918 | Strathearn | ![]() | 152 | Damaged |
22 March 1918 | Polleon | ![]() | 1,155 | Sunk |
25 March 1918 | HMD Border Lads | ![]() | 86 | Sunk |
26 March 1918 | British Star | ![]() | 6,888 | Damaged |
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