German submarine U-585 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
She carried out four patrols, but sank no ships. She was a member of one wolfpack.
The boat was sunk by a drifting German mine in the Barents Sea on 30 March 1942.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-585 had a displacement of 769t when at the surface and 871t while submerged. She had a total length of 67.1m (220.1feet), a pressure hull length of 50.5m (165.7feet), a beam of 6.2m (20.3feet), a height of 9.6m (31.5feet), and a draught of 4.74m (15.55feet). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of NaNPS for use while surfaced, two Brown, Boveri & Cie GG UB 720/8 double-acting electric motors producing a total of 750PS for use while submerged. She had two shafts and two 1.23abbr=onNaNabbr=on propellers. The boat was capable of operating at depths of up to .
The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . U-585 was fitted with five 53.30NaN0 torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.82NaN2 SK C/35 naval gun, 220 rounds, and a 2sp=usNaNsp=us C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.
The submarine was laid down on 1 October 1940 at Blohm & Voss, Hamburg as yard number 561, launched on 9 July 1941 and commissioned on 28 August under the command of Kapitänleutnant Ernst-Bernward Lohse.
She served with the 6th U-boat Flotilla from 28 August 1941 for training and stayed with that organization for operations until her loss, from 1 December 1941 until 30 March 1942.
U-585s first patrol was preceded by a trip to Trondheim then Neidenfjord [west northwest of [[Murmansk]]], both in Norway over Christmas and New Year's Eve 1941–42. The patrol itself started in Neidenfjord on 15 January 1942 and finished in Kirkenes on the 21st.
Her second foray was notable for the loss overboard of Fahnrich zur See [midshipman][1] Eberhard Vollmer on 5 February 1942 in the southern Barents Sea.
The boat was attacked with depth charges by three enemy ships northeast of Kirkenes on 24 March 1942. The damage to the forward torpedo tubes was serious enough to require the submarine to return to her base.
While in Varanfjord, the Soviet submarine M-171 fired both of her torpedoes at an unknown, but outbound U-boat. This can only have been U-585, although she did not report any attack.
She was sunk on 30 March 1942 by a German mine that had drifted from the 'Bantos-A' barrage.
Forty-four men died with U-585; there were no survivors.
U-585 was sunk on 29 March 1942 by the British destroyer . It was later ascertained that this attack was against and caused no damage.
The boat was also claimed to be sunk by the Soviet destroyer Gremyashiy on 30 March 1942. This attack was against and was also inconclusive.