| 词条 | German submarine U-623 | |||||||||||||||||||||||||||||||||
| 释义 |
German submarine U-623 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 15 July 1941 by Blohm & Voss, Hamburg as yard number 599, launched on 31 March 1942 and commissioned on 21 May 1942 under Oberleutnant zur See Hermann Schrüder. DesignGerman Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-623 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-623 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 career began with training at 8th U-boat Flotilla on 21 May 1942, followed by active service on 1 December 1942 as part of the 6th Flotilla for the remainder of her service. In two patrols she sank no ships. WolfpacksU-623 took part in five wolfpacks, namely
FateU-623 was caught while hurrying on the surface to join the attack against Convoy ON 166 and sunk on 21 February 1943 in the North Atlantic, at the position {{coord|48|08|N|29|37|W}}, by depth charges from a RAF Liberator of 120 Squadron. All hands were lost. See also
References1. ^{{cite web |url=http://uboat.net/boats/u623.html |title=The Type VIIC boat U-623 |last=Helgason |first=Guðmundur |website=German U-boats of WWII - uboat.net |accessdate=11 November 2014}} 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 |year=1996 |isbn=0-304-35203-9 |pages=162 |ref={{sfnRef|Edwards}} }}
|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 }}
|last=Sharpe |first=Peter |title=U-Boat Fact File |publisher=Midland Publishing |location=Great Britain |year=1998 |isbn=1-85780-072-9}}{{Refend}} External links
|url=http://uboat.net/boats/u623.html |title=The Type VIIC boat U-623 |last=Helgason |first=Guðmundur |website=German U-boats of WWII - uboat.net |accessdate=29 December 2014 }}{{German Type VII submarines}}{{February 1943 shipwrecks}}{{Subject bar | portal1=Military of Germany | portal2=Submarine | portal3=World War II }}{{use dmy dates|date=December 2014}}{{DEFAULTSORT:U0623}} 11 : German Type VIIC submarines|1942 ships|U-boats commissioned in 1942|Ships lost with all hands|U-boats sunk in 1943|U-boats sunk by depth charges|U-boats sunk by British aircraft|World War II shipwrecks in the Atlantic Ocean|World War II submarines of Germany|Ships built in Hamburg|Maritime incidents in February 1943 |
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