German submarine U-901

Summary

German submarine U-901 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

U-570 Type VIIC submarine that was captured by the British in 1941. This U-boat is almost identical to U-901.
History
Nazi Germany
NameU-901
Ordered10 April 1941
BuilderStettiner Maschinenbau AG, Stettin
Yard number14
Laid down1 January 1942
Launched9 October 1943
Commissioned29 April 1944
FateSurrendered on 15 May 1945; sunk as part of Operation Deadlight on 5 January 1946
General characteristics
Class and typeType VIIC submarine
Displacement
Length
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height9.60 m (31 ft 6 in)
Draught4.74 m (15 ft 7 in)
Installed power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range
  • 8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth
  • 220 m (720 ft)
  • Crush depth: 250–295 m (820–968 ft)
Complement4 officers, 44–52 enlisted
Armament
Service record
Part of:
Identification codes: M 24 797
Commanders:
  • Kptlt. Hans Schrenk[1]
  • 29 April 1944 – 15 May 1945
Operations:
  • 1 patrol:
  • 14 April – 15 May 1945
Victories: None

She was ordered on 10 April 1941, and was laid down on 1 January 1942 at Stettiner Maschinenbau AG, Stettin, as yard number 14. She was launched on 9 October 1943 and commissioned under the command of Oberleutnant zur See Hans Schrenk on 29 April 1944.[2]

Design edit

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-901 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[3] 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 SSW 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).[3]

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).[3] 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-901 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA mines, 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 44 — 52 men.[3]

Service history edit

U-901 participated in one war patrol that yielded no ships sunk or damaged.[2]

On 15 May 1945, U-901 surrendered at Stavanger, Norway. She was later transferred to Lisahally, on 27 May 1945. Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-901 was one of 116 selected to take part in Operation Deadlight. U-901 was towed out and sank on 5 January 1946 by unknown causes.[2]

The wreck now lies at 55°50′N 08°30′W / 55.833°N 8.500°W / 55.833; -8.500.[2]

References edit

  1. ^ Helgason, Guðmundur. "Hans Schrenk". German U-boats of WWII - uboat.net. Retrieved 4 April 2016.
  2. ^ a b c d Helgason, Guðmundur. "U-901". German U-boats of WWII - uboat.net. Retrieved 4 April 2016.
  3. ^ a b c d Gröner 1991, pp. 43–46.

Bibliography edit

  • 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). Der U-Boot-Krieg, 1939-1945: Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945] (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
  • Gröner, Eric; Jung, Dieter; Maass, Martin (1991). German Warships 1815-1945: U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

External links edit

  • Helgason, Guðmundur. "Patrols by U-901". German U-boats of WWII - uboat.net.