German submarine U-584 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II.She was laid down on 1 October 1940 by Blohm & Voss, Hamburg as yard number 560, launched on 26 June 1941 and commissioned on 21 August 1941 under Kapitänleunant Joachim Deecke.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-584 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-584 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 boat's career began with training at 5th U-boat Flotilla on 21 August 1941, followed by active service on 1 December 1941 as part of the 1st Flotilla for the remainder of her service.
In 10 patrols she sank three merchant ships, for a total of and one warship of 206 tons.
On 25 May 1942, the boat departed Brest, France for a special mission as part of Operation Pastorius. On 18 June, she landed a 4-man saboteur team just south of Jacksonville, Florida. This was one of two teams landed within a week of each other on the US east coast; the other team came aboard . The boat then returned safely to Brest on 22 July.
U-584 took part in 16 wolfpacks, namely:
U-584 was sunk on 31 October 1943 in the North Atlantic in position 49.2333°N -86°W, by depth charges from US Avenger aircraft operating from escort carrier . All hands were lost.
| Date | Ship Name | Nationality | Tonnage[1] | Fate[2] | |
|---|---|---|---|---|---|
| 10 January 1942 | M-175 | 206 | Sunk | ||
| 11 September 1942 | Empire Oil |  United Kingdom | 8,029 | Sunk | |
| 11 September 1942 | Hindanger |  Norway | 4,884 | Sunk | |
| 5 May 1943 | West Madaket |  United States | 5,565 | Sunk |