German submarine U-1203
|Ordered:||14 October 1941|
|Laid down:||15 May 1943|
|Launched:||9 December 1943|
|Commissioned:||10 February 1944|
|Fate:||Surrendered in Trondheim, Norway on 9 May 1945.|
|Class and type:||Type VIIC submarine|
|Draught:||4.74 m (15 ft 7 in)|
|Complement:||4 officers, 40–56 enlisted|
|Victories:||1 auxiliary warship sunk (580 tons)|
German submarine U-1203 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 15 May 1943 by Schichau-Werke, Danzig as yard number 1573, launched on 9 December 1943 and commissioned on 10 February 1944 under Kapitänleutnant Erich Steinbrink.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-1203 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 AEG GU 460/8–27 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-1203 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), one 3.7 cm (1.5 in) Flak M42 and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.
U-1203 took part in no wolfpacks.
Summary of raiding history
|24 February 1945||HMY Ellesmere||Royal Navy||580||Sunk|
- Helgason, Guðmundur. "Erich Steinbrink". German U-boats of WWII - uboat.net. Retrieved 26 March 2015.
- Helgason, Guðmundur. "Sigurd Seeger". German U-boats of WWII - uboat.net. Retrieved 26 March 2015.
- Gröner 1991, pp. 43-46.
- Helgason, Guðmundur. "Ships hit by U-1203". German U-boats of WWII - uboat.net. Retrieved 26 March 2015.
- 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.
- 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.
- Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.
- Helgason, Guðmundur. "The Type VIIC Uboat U-1203". German U-boats of WWII - uboat.net.