|Ordered:||30 October 1939|
|Builder:||Deutsche Werke, Kiel|
|Laid down:||4 July 1940|
|Launched:||30 April 1941|
|Commissioned:||26 June 1941|
|Fate:||Sunk by depth charges on 21 May 1944 off the south coast of Italy at position Coordinates: by Royal Navy surface warships.|
|Class and type:||Type VIIC submarine|
|Height:||9.60 m (31 ft 6 in)|
|Draught:||4.74 m (15 ft 7 in)|
|Complement:||4 officers, 40–56 enlisted|
German submarine U-453 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 4 July 1940 by Deutsche Werke in Kiel as yard number 284, launched on 30 April 1941 and commissioned on 26 June 1941 under Kapitänleutnant Egon-Reiner von Schlippenbach (Knight’s Cross).
The boat's service began on 26 June 1941 with training as part of the 7th U-boat Flotilla, followed by active service until being transferred to the 29th flotilla on 1 January 1942, based in La Spezia in Italy.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-453 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 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). 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 kW; 2,760 to 3,160 shp) for use while surfaced, two Siemens-Schuckert GU 343/38–8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-453 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.
In 17 patrols she sank nine merchant ships for a total of 23,289 gross register tons (GRT), plus two warships and damaged two merchant ships.
Summary of raiding history
|13 December 1941||Badalona||Spain||4,202||Sunk|
|7 April 1942||HMHS Somersetshire||Royal Navy||9,716||Damaged|
|20 January 1943||Jean Jadot||Belgium||5,859||Sunk|
|30 June 1943||Oligarch||United Kingdom||6,894||Damaged|
|6 July 1943||Shahjehan||United Kingdom||5,454||Sunk|
|15 November 1943||HMS Quail||Royal Navy||1,705||Total loss - mined|
|20 November 1943||Jela||Yugoslavia||335||Sunk - mined|
|22 November 1943||HMS Hebe||Royal Navy||835||Sunk - mined|
|1 February 1944||Agia Paraskevi||Greece||80||Sunk|
|1 February 1944||Salem||Lebanon||81||Sunk|
|1 February 1944||Himli||Lebanon||67||Sunk|
|1 February 1944||Yahiya||Syria||64||Sunk|
|19 May 1944||Fort Missanabie||United Kingdom||7,147||Sunk|
- Helgason, Guðmundur. "The Type VIIC boat U-453". German U-boats of WWII - uboat.net. Retrieved 27 April 2014.
- Gröner 1991, pp. 43-46.
- Helgason, Guðmundur. "Ships hit by U-453". German U-boats of WWII - uboat.net. Retrieved 27 December 2014.
- Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
- Busch, Rainer; Röll, 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). IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Helgason, Guðmundur. "The Type VIIC boat U-453". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
- Hofmann, Markus. "U 453". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 26 December 2014.