History | |
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German Empire | |
Name | U-85 |
Ordered | 23 June 1915 |
Builder | Germaniawerft, Kiel |
Yard number | 255 |
Laid down | 29 November 1915 |
Launched | 22 August 1916 |
Commissioned | 23 October 1916 |
Fate | Foundered in North Sea after 7 March 1917, 38 dead (all hands lost). [1] |
General characteristics [2] | |
Displacement | |
Length |
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Beam |
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Height | 8.00 m (26 ft 3 in) |
Draught | 4.02 m (13 ft 2 in) |
Installed power | |
Propulsion | 2 shafts, 2 × 1.70 m (5 ft 7 in) propellers |
Speed |
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Range |
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Test depth | 50 m (160 ft) |
Complement | 4 officers, 31 enlisted |
Armament |
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Service record | |
Part of: |
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Commanders: |
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Operations: | 3 patrols |
Victories: |
SM U-85 [Note 1] was one of the 329 submarines serving in the Imperial German Navy in World War I. U-85 was engaged in the naval warfare and took part in the First Battle of the Atlantic. [1]
Initially, U-81 to U-83 had one 10.5 cm gun with 140-240 rounds. U-84 - U-86 on the other hand had two 8.8 cm guns. In 1917, U-84 - U-86 were refitted with a single 10.5 cm gun (240 rounds) [1]
Type U 81 submarines were preceded by the shorter Type UE I submarines. U-85 had a displacement of 808 tonnes (795 long tons) when at the surface and 946 tonnes (931 long tons) while submerged. [2] She had a total length of 70.06 m (229 ft 10 in), a pressure hull length of 55.55 m (182 ft 3 in), a beam of 6.30 m (20 ft 8 in), a height of 8 m (26 ft 3 in), and a draught of 4.02 m (13 ft 2 in). The submarine was powered by two 2,400 metric horsepower (1,800 kW; 2,400 shp) engines for use while surfaced, and two 1,200 metric horsepower (880 kW; 1,200 shp) engines for use while submerged. She had two propeller shafts. She was capable of operating at depths of up to 50 metres (160 ft). [2]
The submarine had a maximum surface speed of 16.8 knots (31.1 km/h; 19.3 mph) and a maximum submerged speed of 9.1 knots (16.9 km/h; 10.5 mph). [2] When submerged, she could operate for 56 nautical miles (104 km; 64 mi) at 5 knots (9.3 km/h; 5.8 mph); when surfaced, she could travel 11,220 nautical miles (20,780 km; 12,910 mi) at 8 knots (15 km/h; 9.2 mph). U-85 was fitted with four 50 centimetres (20 in) torpedo tubes (two at the bow and two at the stern), twelve to sixteen torpedoes, and one 10.5 cm (4.1 in) SK L/45 deck gun (from 1917). She had a complement of thirty-five (thirty-one crew members and four officers). [2]
Date | Name | Nationality | Tonnage [Note 2] | Fate [4] |
---|---|---|---|---|
26 January 1917 | Dicax | Norway | 923 | Sunk |
6 February 1917 | Cliftonian | United Kingdom | 4,303 | Sunk |
6 February 1917 | Explorer | United Kingdom | 7,608 | Damaged |
7 February 1917 | California | United Kingdom | 8,669 | Sunk |
7 February 1917 | Vedamore | United Kingdom | 6,330 | Sunk |
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