[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki43\/german-submarine-u-621-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki43\/german-submarine-u-621-wikipedia\/","headline":"German submarine U-621 – Wikipedia","name":"German submarine U-621 – Wikipedia","description":"From Wikipedia, the free encyclopedia German World War II submarine History Nazi Germany Name U-621 Ordered 15 August 1940 Builder","datePublished":"2021-05-18","dateModified":"2021-05-18","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-621-wikipedia\/","wordCount":3380,"articleBody":"From Wikipedia, the free encyclopediaGerman World War II submarineHistoryNazi GermanyNameU-621Ordered15 August 1940BuilderBlohm & Voss, HamburgYard number597Laid down1 July 1941Launched19 March 1942Commissioned7 May 1942FateSunk on 18 August 1944 near La Rochelle at position 45\u00b052\u2032N 02\u00b036\u2032W\ufeff \/ \ufeff45.867\u00b0N 2.600\u00b0W\ufeff \/ 45.867; -2.600 by depth charges from Canadian destroyers Ottawa, Kootenay and Chaudiere.General 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 hullHeight9.60\u00a0m (31\u00a0ft 6\u00a0in)Draught4.74\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 record[1]Part of:Commanders:Operations:10 patrols:1st patrol:29 September \u2013 5 November 19422nd patrol:5 December 1942 \u2013 5 January 19433rd patrol:1 February \u2013 23 March 19434th patrol:22 April \u2013 3 June 19435th patrol:22 August \u2013 28 September 19436th patrol:6 \u2013 23 January 19447th patrol:21 February \u2013 19 April 19448th patrol:6 \u2013 23 June 19449th patrol:15 July \u2013 11 August 194410th patrol:13 \u2013 18 August 1944Victories:4 merchant ships sunk (20,159\u00a0GRT)1 auxiliary warship sunk (2,938\u00a0GRT)1 merchant ship damaged (10,048\u00a0GRT)1 warship damaged (1,625 tons)German submarine U-621 was a Type VIIC U-boat built for Nazi Germany’s Kriegsmarine for service during World War II.She was laid down on 1 July 1941 by Blohm & Voss in Hamburg as yard number 597, launched on 19 March 1942 and commissioned on 7 May 1942 under Kapit\u00e4nleutnant Horst Sch\u00fcnemann.German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-621 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, 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-621 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 a 2\u00a0cm (0.79\u00a0in) C\/30 anti-aircraft gun. The boat had a complement of 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 service began on 7 May 1942 for training as part of the 8th U-boat Flotilla. After training was completed she transferred to the 9th flotilla on 1 October 1942 for active service.In ten patrols she sank four merchant ships for a total of 20,159\u00a0gross register tons\u00a0(GRT), plus one auxiliary warship. She also damaged two more ships.Wolfpacks[edit]She took part in eleven wolfpacks, namely:Panther (10 \u2013 16 October 1942)Puma (16 \u2013 29 October 1942)Raufbold (11 \u2013 18 December 1942)Hartherz (3 \u2013 7 February 1943)Ritter (11 \u2013 26 February 1943)Burggraf (4 \u2013 5 March 1942)Raubgraf (7 \u2013 15 March 1943)Amsel 1 (3 \u2013 6 May 1943)Elbe (7 \u2013 10 May 1943)Elbe 2 (10 \u2013 14 May 1943)Mosel (19 \u2013 24 May 1943)Fate[edit]She was sunk by depth charges dropped by three Royal Canadian Navy destroyers, HMCS\u00a0Ottawa, HMCS\u00a0Kootenay and HMCS\u00a0Chaudiere on 18 August 1944 near La Rochelle at position 45\u00b052\u2032N 02\u00b036\u2032W\ufeff \/ \ufeff45.867\u00b0N 2.600\u00b0W\ufeff \/ 45.867; -2.600Coordinates: 45\u00b052\u2032N 02\u00b036\u2032W\ufeff \/ \ufeff45.867\u00b0N 2.600\u00b0W\ufeff \/ 45.867; -2.600.Summary of raiding history[edit]References[edit]Notes[edit]Citations[edit]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.Busch, Rainer; R\u00f6ll, 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). Vol.\u00a0IV. Hamburg, Berlin, Bonn: Mittler. ISBN\u00a03-8132-0514-2.Edwards, Bernard (1996). D\u00f6nitz and the Wolf Packs \u2013 The U-Boats at War. London, UK: Cassell Military Classics. p.\u00a0161. ISBN\u00a00-304-35203-9.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.External links[edit]Shipwrecks and maritime incidents in August 1944Shipwrecks2 Aug: USS\u00a0Fiske3 Aug: HMS\u00a0Quorn4 Aug: Tannenfels, Matsu5 Aug: Mefk\u00fcre, U-6716 Aug: Empire City, Sachsenwald, Th\u00e9tis, U-471, U-736, U-952, U-969, V 215 Oliva7 Aug: Amsterdam, Empire Day, Nagara8 Aug: Conte Verde, HMCS\u00a0Regina, Tama Maru No. 6, V 404 Falke9 Aug: Spichern10 Aug: U-60811 Aug: U-385, U-96712 Aug: T-114, T-118, U-198, U-981, V 410 Germania13 Aug: USS\u00a0Flier, U-270, V 1101 Preu\u00dfsen14 Aug: Gueydon, U-61815 Aug: U-74116 Aug: Tr\u00e9mintin 18 Aug: La Galissonni\u00e8re, Natori, Strasbourg, Taiy\u014d, Teia Maru, U-107, U-129, U-621, V 406 Hans Loh19 Aug: Commandant Teste, Hayasui, Tamatsu Maru, U-123, U-466, V-6112 Friese20 Aug: Richard Montgomery, U-9, U-413, U-984, U-1229. V 409 August B\u00f6sch21 Aug: HMCS\u00a0Alberni, HMS\u00a0Kite, HMS\u00a0Orchis, U-230, V 402 Dr. Adolf Spilker, Z2322 Aug: HMS\u00a0Bickerton, HMS\u00a0Loyalty, Matsuwa, Tsushima Maru, U-344, V 401 Jan Mayen, V 405 J. Hinrich Wilhelms, V 413 Ferdinand Niedermeyer23 Aug: Asakaze, U-18024 Aug: USS\u00a0Harder, NMS\u00a0Mihail Kog\u0103lniceanu, U-354, U-445, Z3725 Aug: Sperrbrecher 136, U-18, U-24, U-178, U-667, UIT-21, Y\u016bnagi, Z2426 Aug: Samidare, U-188, V 404 Baden, V 411 Saarland27 Aug: HMS\u00a0Britomart, Clemenceau, HMS\u00a0Hussar28 Aug: John Barry, V 407 Dorum30 Aug: De Grasse, M55331 Aug: ShiratakaUnknown date: Condorcet, Marechal Petain, U-925Other 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-621-wikipedia\/#breadcrumbitem","name":"German submarine U-621 – Wikipedia"}}]}]