| 词条 | German submarine U-621 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
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 Kapitänleutnant Horst Schünemann. DesignGerman Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-621 had a displacement of {{convert|769|t|LT}} when at the surface and {{convert|871|t|LT}} while submerged.{{sfn|Gröner|1991|pp=43-46}} She had a total length of {{convert|67.10|m|ftin|abbr=on}}, a pressure hull length of {{convert|50.50|m|ftin|abbr=on}}, a beam of {{convert|6.20|m|ftin|abbr=on}}, a height of {{convert|9.60|m|ftin|abbr=on}}, and a draught of {{convert|4.74|m|ftin|abbr=on}}. The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of {{convert|2800 to 3200|PS|kW shp|-1}} for use while surfaced, two Brown, Boveri & Cie GG UB 720/8 double-acting electric motors producing a total of {{convert|750|PS|kW shp}} for use while submerged. She had two shafts and two {{convert|1.23|m|ft|abbr=on|0}} propellers. The boat was capable of operating at depths of up to {{convert|230|m}}.{{sfn|Gröner|1991|pp=43-46}} The submarine had a maximum surface speed of {{convert|17.7|kn}} and a maximum submerged speed of {{convert|7.6|kn}}.{{sfn|Gröner|1991|pp=43-46}} When submerged, the boat could operate for {{convert|80|nmi}} at {{convert|4|kn}}; when surfaced, she could travel {{convert|8500|nmi}} at {{convert|10|kn}}. U-621 was fitted with five {{convert|53.3|cm|in|0|abbr=on}} torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one {{convert|8.8|cm|in|2|abbr=on}} SK C/35 naval gun, 220 rounds, and a {{convert|2|cm|in|sp=us|abbr=on}} C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.{{sfn|Gröner|1991|pp=43-46}} Service historyThe 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 {{GRT|20,159|disp=long}}, plus one auxiliary warship. She also damaged two more ships. WolfpacksShe took part in eleven wolfpacks, namely,
FateShe was sunk by a depth charges dropped by three Royal Canadian Navy destroyers, {{HMCS|Ottawa|H31|6}}, {{HMCS|Kootenay|H75|6}} and {{HMCS|Chaudiere|H99|6}} on 18 August 1944 near La Rochelle at position {{coord|45|52|N|02|36|W|display=inline, title}}. {{Clear}}Summary of raiding history
ReferencesNotes1. ^{{cite web |url=http://uboat.net/boats/u621.html |title=The Type VIIC boat U-621 |last=Helgason |first=Guðmundur |website=German U-boats of WWII - uboat.net |accessdate=3 May 2014}} 2. ^Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement. 3. ^{{cite web |url=http://uboat.net/boats/successes/u621.html |title=Ships hit by U-621 |last=Helgason |first=Guðmundur |website=German U-boats of WWII - uboat.net |accessdate=3 May 2014}} Citations{{reflist}}Bibliography{{Refbegin}}
|last1=Busch |first1=Rainer |last2=Röll |first2=Hans-Joachim |title=Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 |trans-title=German U-boat losses from September 1939 to May 1945 |work=Der U-Boot-Krieg |volume=IV |publisher=Mittler |location=Hamburg, Berlin, Bonn |year=1999 |isbn=3-8132-0514-2 |language=German |ref=harv }}
|last=Edwards |first=Bernard |title=Dönitz and the Wolf Packs – The U-Boats at War |publisher=Cassell Military Classics |year=1996 |location=London, UK |pages=161 |isbn=0-304-35203-9 }}
|last1=Gröner |first1=Erich |author-link1= |author-mask1= |last2=Jung |first2=Dieter |display-authors= |last-author-amp= |last3=Maass |first3=Martin |translator-last1=Thomas |translator-first1=Keith |translator-last2=Magowan |translator-first2=Rachel |year=1991 |title=U-boats and Mine Warfare Vessels |volume=2 |work=German Warships 1815–1945 |location=London |publisher=Conway Maritime Press |isbn=0-85177-593-4 |ref=CITEREFGr.C3.B6ner1991 }}{{Refend}} External links
|url=http://uboat.net/boats/u621.html |title=The Type VIIC boat U-621 |last=Helgason |first=Guðmundur |website=German U-boats of WWII - uboat.net |accessdate=29 December 2014 }}{{German Type VII submarines}}{{August 1944 shipwrecks}}{{Subject bar | portal1=Military of Germany | portal2=Submarine | portal3=World War II }}{{use dmy dates|date=December 2014}}{{DEFAULTSORT:U0621}} 10 : Ships lost with all hands|German Type VIIC submarines|1942 ships|U-boats commissioned in 1942|U-boats sunk in 1944|U-boats sunk by Canadian warships|World War II submarines of Germany|World War II shipwrecks in the Atlantic Ocean|Ships built in Hamburg|Maritime incidents in August 1944 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。