Submarine U-821

U-821

國家	德國
艦級	Type VII 級潛艇
造船廠	Oderwerke AG
Slip/Drydock Number	II
訂購日期	1941年1月20日
安放龍骨日期	1941年10月2日
下水日期	1943年6月26日
服役日期	1943年10月11日
沉沒日期	1944年6月10日
排水量	769 tons standard; 871 tons submerged
長度	220 feet
寬度	20 feet
吃水	18 feet
動力來源	2 Germaniawerft supercharged F46 diesel engines (2,800-3,200bhp); 2 Brown, Boveri & Cie GG UB 720/8 elector motors (740shp); 2 shafts
速度	18 knots
續航力	8,500nm at 10 knots surfaced, 80nm at 4 knots submerged
乘員	60
武裝	4x53.3cm bow torpedo tubes, 1x53.3cm stern torpedo tube, 14 torpedoes or 26 TMA mines, 1x8.8cm deck gun, 1x3.7cm Flak M42 anti-aircraft gun, 2x2x2cm C/30 anti-aircraft guns
Submerged Speed	7.6 knots

Contributor: C. Peter Chen

ww2dbaseGerman submarine U-821 was commissioned into service in Oct 1943. She was a member of the 4th and 24th Submarine Flotillas before being assigned to the 1st Submarine Flotilla in Mar 1944 for her first war patrol out of Bergen, Norway, during which she encountered no targets. Her second war patrol, out of Brest, France, was ended merely four days after it began. She was discovered on the surface by British Royal Air Force aircraft off Ushant island, France. Commanding officer Oberleutnant zur See Ulrich Knackfuss decided against diving, instead ordering her crew to fire on the British aircraft. Attacking aircraft eventually grew to three Mosquito aircraft (of No. 248 Squadron RAF) and one Liberator bomber (No. 206 Squadron RAF), overpowering and sinking the submarine. U-821 was able to shoot down one Mosquito aircraft. 50 were killed; one survivor was picked up by a German rescue vessel a few hours after the sinking.

ww2dbaseSource: Wikipedia

Last Major Revision: Aug 2021

Submarine U-821 互動地圖

Photographs

U-821 under construction at the Oderwerke shipyard in Stettin, Germany, 1943

U-821 Operational Timeline

1941年1月20日	The order for U-821 was issued.
1941年10月2日	The keel of U-821 was laid down by Oderwerke in Stettin, Germany.Pommern,
1943年6月26日	U-821 was launched by Oderwerke in Stettin, Germany.
1943年10月11日	U-821 was commissioned into service with Ludwig Fabricius in command; she was assigned to the 4th Submarine Flotilla.
1943年11月1日	U-821 was assigned to the 24th Submarine Flotilla.
1943年12月2日	Ernst Fischer was named the commanding officer of U-821, relieving Ludwig Fabricius.
1944年1月1日	U-821 was assigned to the 4th Submarine Flotilla; Ulrich Knackfuss was named her commanding officer, relieving Ernst Fischer.
1944年3月1日	U-821 was assigned to the 1st Submarine Flotilla.
1944年3月19日	U-821 departed Bergen, Norway for her first war patrol.
1944年4月12日	U-821 completed her first war patrol.
1944年6月6日	U-821 departed Brest, France for her second war patrol.
1944年6月10日	U-821 was sunk by aircraft off Ushant, France.

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U-821