|Ordered:||16 January 1940|
|Builder:||Blohm & Voss, Hamburg|
|Laid down:||17 December 1940|
|Launched:||3 September 1941|
|Commissioned:||23 October 1941|
|Fate:||Sunk 13 December 1943 at positionby US & Royal Navy.|
|Class and type:||Type VIIC submarine|
|Height:||9.60 m (31 ft 6 in)|
|Draught:||4.74 m (15 ft 7 in)|
|Complement:||4 officers, 40–56 enlisted|
German submarine U-593 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 17 December 1940 by Blohm & Voss in Hamburg as yard number 569, launched on 3 September 1941 and commissioned on 23 October under Kapitänleutnant Gerd Kelbling.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-593 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two BBC GG UB 720/8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-593 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.
In 16 patrols she sank 16 ships, including one (?) warship, for a total of 41,411 GRT. She was sunk on 13 December 1943 in the Mediterranean Sea, off Bougie, Algeria, in position , by depth charges from USS Wainwright and HMS Calpe. There were no casualties.
This U-boat briefly clashed with British forces on their way to the St Nazaire Raid in March 1942.
In addition she took part in three wolfpacks, namely,
Summary of raiding history
|14 May 1942||Stavros||Greece||4,853||Damaged|
|25 May 1942||Persephone||Panama||8,426||Total loss|
|5 August 1942||Spar||Netherlands||3,616||Sunk|
|12 November 1942||Browning||United Kingdom||5,332||Sunk|
|18 March 1943||Dafila||United Kingdom||1,940||Sunk|
|18 March 1943||Kaying||United Kingdom||2,626||Sunk|
|27 March 1943||City of Guildford||United Kingdom||5,157||Sunk|
|11 April 1943||Runo||United Kingdom||1,858||Sunk|
|22 June 1943||USS LST-333||United States Navy||1,625||Total loss|
|22 June 1943||USS LST-387||United States Navy||1,625||Damaged|
|5 July 1943||Devis||United Kingdom||6,054||Sunk|
|21 September 1943||William W. Gerhard||United States||7,176||Sunk|
|7 September 1943||USS Skill||United States Navy||815||Sunk|
|3 November 1943||Mont Viso||Free France||4,531||Sunk|
|12 December 1943||HMS Tynedale||Royal Navy||1,000||Sunk|
|12 December 1943||HMS Holcombe||Royal Navy||1,087||Sunk|
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- Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Edwards, Bernard (1996). Dönitz and the Wolf Packs – The U-Boats at War. London, UK: Cassell Military Classics. pp. 89, 91–93. ISBN 0-304-35203-9.
- Helgason, Guðmundur. "The Type VIIC boat U-593". German U-boats of WWII - uboat.net. Retrieved 29 December 2014.
- Hofmann, Markus. "U 593". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 29 December 2014.