[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki43\/german-submarine-u-990-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki43\/german-submarine-u-990-wikipedia\/","headline":"German submarine U-990 – Wikipedia","name":"German submarine U-990 – Wikipedia","description":"From Wikipedia, the free encyclopedia German World War II submarine History Nazi Germany Name U-990 Ordered 25 May 1941 Builder","datePublished":"2021-07-15","dateModified":"2021-07-15","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki43\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki43\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/d\/d0\/War_Ensign_of_Germany_%281938%E2%80%931945%29.svg\/47px-War_Ensign_of_Germany_%281938%E2%80%931945%29.svg.png","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/d\/d0\/War_Ensign_of_Germany_%281938%E2%80%931945%29.svg\/47px-War_Ensign_of_Germany_%281938%E2%80%931945%29.svg.png","height":"28","width":"47"},"url":"https:\/\/wiki.edu.vn\/en\/wiki43\/german-submarine-u-990-wikipedia\/","wordCount":3121,"articleBody":"From Wikipedia, the free encyclopediaGerman World War II submarineHistoryNazi GermanyNameU-990Ordered25 May 1941BuilderBlohm & Voss, HamburgYard number190Laid down17 October 1942Launched16 June 1943Commissioned28 July 1943FateSunk on 25 May 1944 in the Norwegian Sea by depth charges from a RAF Liberator bomberGeneral characteristicsClass and typeType VIIC submarineDisplacement769 tonnes (757 long tons) surfaced871\u00a0t (857 long tons) submergedLengthBeam6.20\u00a0m (20\u00a0ft 4\u00a0in) o\/a4.70\u00a0m (15\u00a0ft 5\u00a0in) pressure hullDraught4.74\u00a0m (15\u00a0ft 7\u00a0in)Installed power2,800\u20133,200\u00a0PS (2,100\u20132,400\u00a0kW; 2,800\u20133,200\u00a0bhp) (diesels)750\u00a0PS (550\u00a0kW; 740\u00a0shp) (electric)PropulsionSpeed17.7 knots (32.8\u00a0km\/h; 20.4\u00a0mph) surfaced7.6 knots (14.1\u00a0km\/h; 8.7\u00a0mph) submergedRange8,500\u00a0nmi (15,700\u00a0km; 9,800\u00a0mi) at 10 knots (19\u00a0km\/h; 12\u00a0mph) surfaced80\u00a0nmi (150\u00a0km; 92\u00a0mi) at 4 knots (7.4\u00a0km\/h; 4.6\u00a0mph) submergedTest depth230\u00a0m (750\u00a0ft)Crush depth: 250\u2013295\u00a0m (820\u2013968\u00a0ft)Complement4 officers, 40\u201356 enlistedArmamentService recordPart of:Commanders:Kptlt. Hubert Nordheimer[1]28 July 1943 \u2013 25 May 1944Operations:4 patrols:1st patrol:26 January \u2013 28 February 19442nd patrol:4 \u2013 27 March 19443rd patrol: a. 31 March \u2013 5 April 1944b. 8 \u2013 12 April 19444th patrol:22 \u2013 25 May 1944Victories:1 warship sunk (1,920 tons)German submarine U-990 was a Type VIIC U-boat built for Nazi Germany’s Kriegsmarine for service during World War II.She was laid down on 17 October 1942 by Blohm & Voss, Hamburg as yard number 190, launched on 16 June 1943 and commissioned on 28 July 1943 under Kapit\u00e4nleutnant Hubert Nordheimer.German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-990 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\u00a0m (220\u00a0ft 2\u00a0in), a pressure hull length of 50.50\u00a0m (165\u00a0ft 8\u00a0in), a beam of 6.20\u00a0m (20\u00a0ft 4\u00a0in), a height of 9.60\u00a0m (31\u00a0ft 6\u00a0in), and a draught of 4.74\u00a0m (15\u00a0ft 7\u00a0in). 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\u00a0kW; 2,760 to 3,160\u00a0shp) for use while surfaced, and two Brown, Boveri & Cie GG UB 720\/8 double-acting electric motors producing a total of 750 metric horsepower (550\u00a0kW; 740\u00a0shp) for use while submerged. She had two shafts and two 1.23\u00a0m (4\u00a0ft) propellers. The boat was capable of operating at depths of up to 230 metres (750\u00a0ft).The submarine had a maximum surface speed of 17.7 knots (32.8\u00a0km\/h; 20.4\u00a0mph) and a maximum submerged speed of 7.6 knots (14.1\u00a0km\/h; 8.7\u00a0mph). When submerged, the boat could operate for 80 nautical miles (150\u00a0km; 92\u00a0mi) at 4 knots (7.4\u00a0km\/h; 4.6\u00a0mph); when surfaced, she could travel 8,500 nautical miles (15,700\u00a0km; 9,800\u00a0mi) at 10 knots (19\u00a0km\/h; 12\u00a0mph). U-990 was fitted with five 53.3\u00a0cm (21\u00a0in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8\u00a0cm (3.46\u00a0in) SK C\/35 naval gun, 220 rounds, and one twin 2\u00a0cm (0.79\u00a0in) C\/30 anti-aircraft gun. The boat had a crew sized between forty-four and sixty.Table of ContentsService history[edit]Wolfpacks[edit]Fate[edit]Summary of raiding history[edit]References[edit]Notes[edit]Citations[edit]Bibliography[edit]External links[edit]Service history[edit]The boat’s career began with training at 5th Flotilla on 28 July 1943, followed by active service on 1 January 1944 as part of the 11th Flotilla.Wolfpacks[edit]U-990 took part in four wolfpacks, namely:Werwolf (28 January \u2013 27 February 1944)Orkan (5 \u2013 10 March 1944)Hammer (10 \u2013 26 March 1944)Blitz (2 \u2013 4 April 1944)Fate[edit]U-990 was sunk on 25 May 1944 in the Norwegian Sea at 65\u00b005\u2032N 07\u00b028\u2032E\ufeff \/ \ufeff65.083\u00b0N 7.467\u00b0E\ufeff \/ 65.083; 7.467Coordinates: 65\u00b005\u2032N 07\u00b028\u2032E\ufeff \/ \ufeff65.083\u00b0N 7.467\u00b0E\ufeff \/ 65.083; 7.467 after being depth charged by a RAF Liberator bomber of 59 Squadron.Sqn Ldr B. Sisson sighted U-990 on the surface at 06:23 and attacked under cover of a rain squall, dropping six depth charges. Following the attack, the submarine could be seen sinking amid a large oil slick.[3]There were 20 crew killed, and 33 survivors.Summary of raiding history[edit]References[edit]Notes[edit]Citations[edit]^ Helgason, Gu\u00f0mundur. “Hubert Nordheimer”. German U-boats of WWII – uboat.net. Retrieved 7 April 2015.^ Kemp, Paul (1997). U-Boats Destroyed \u2013 German Submarine Losses in the World Wars. Arms and Armour Press. ISBN\u00a01-85409-321-5.^ Helgason, Gu\u00f0mundur. “Ships hit by U-990”. German U-boats of WWII – uboat.net. Retrieved 7 April 2015.Bibliography[edit]Busch, Rainer; R\u00f6ll, Hans-Joachim (1999). German U-boat commanders of World War II\u00a0: a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN\u00a01-55750-186-6.Gr\u00f6ner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815\u20131945. Vol.\u00a02. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN\u00a00-85177-593-4.Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN\u00a01-85780-072-9.External links[edit]Shipwrecks and maritime incidents in May 1944Shipwrecks1 May: U-2772 May: U-674, U-9593 May: USS\u00a0Donnell, U-8524 May: U-371, U-8465 May: USS\u00a0Fechteler6 May: U-66, U-473, U-7657 May: HMCS\u00a0Valleyfield9 May: USS\u00a0PC-55810 May: Karukaya, Totila11 May: USS\u00a0YF-41513 May: Ro-50114 May: America Maru, Inazuma, U-123415 May: U-73116 May: I-17617 May: U-61619 May: I-16, U-960, U-101521 May: USS\u00a0LST-353, USS\u00a0LST-480, U-45322 May: Asanagi, Hashidate, Ro-10623 May: Ro-10424 May: Ro-116, U-67525 May: U-476, U-99026 May: Ro-10827 May: U-29228 May: UJ 221029 May: USS\u00a0Block Island, U-54931 May: Ishigaki, Kotaka, Ro-105, U-289Unknown date: U-240Other incidents"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki43\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki43\/german-submarine-u-990-wikipedia\/#breadcrumbitem","name":"German submarine U-990 – Wikipedia"}}]}]