German submarine U-1017

U-995 Type VIIC/41 at the Laboe Naval Memorial. This U-boat is almost identical to U-1017.
History
Nazi Germany
Name: U-1017
Ordered: 23 March 1942
Builder: Blohm & Voss AG, Hamburg
Yard number: 217
Laid down: 19 April 1943
Launched: 1 March 1944
Commissioned: 13 April 1944
Fate: Sunk on 29 April 1945 at 56°04′N 11°06′W / 56.067°N 11.100°W / 56.067; -11.100 by RAF Liberator bomber
General characteristics (VIIC/41)[1]
Class and type: Type VIIC/41 submarine
Displacement:
  • 759 tonnes (747 long tons) surfaced
  • 871 t (857 long tons) submerged
Length:
Beam:
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height: 9.60 m (31 ft 6 in)
Draught: 4.74 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:
  • 230 m (750 ft)
  • Calculated crush depth: 250–295 m (820–968 ft)
Complement: 44-52 officers & ratings
Armament:
Service record
Part of:
Commanders:
  • Kptlt. Viktor Graf von Reventlow-Criminil[2]
  • 13 April – 16 June 1944
  • Oblt.z.S. Werner Riecken[3]
  • 17 June 1944 – 29 April 1945
Operations: 2 patrols
Victories: 2 merchant ships sunk (10,604 GRT)

German submarine U-1017 was a Type VIIC/41 U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 19 April 1943 by Blohm & Voss, Hamburg as yard number 217, launched on 1 March 1944 and commissioned on 13 April 1944 under Kapitänleutnant Victor Graf von Reventlow-Criminil.[4]

Design

Like all Type VIIC/41 U-boats, U-1017 had a displacement of 759 tonnes (747 long tons) when at the surface and 860 tonnes (850 long tons) while submerged. She had a total length of 67.23 m (220 ft 7 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam length of 6.20 m (20 ft 4 in), and a draught length of 4.74 m (15 ft 7 in).[5] The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke 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) and two BBC GG UB 720/8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. The boat was capable of operating at a depth of 250 metres (820 ft).[5]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a 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).[5] U-1017 was fitted with an 8.8 centimetres (3.5 in) SK C/35 naval gun and 220 rounds, an anti-aircraft gun, five 53.3 cm (21 in) torpedo tubes (four on the bow and one on the stern) and fourteen torpedoes. Its complement was between forty-four and sixty.[5]

Service History

The boat's service career began on 13 April 1944 with the 31st Training Flotilla, followed by active service with 11th Flotilla on 1 November 1944. U-1017 took part in no wolfpacks U-1017 was sunk by depth charges and a FIDO homing torpedo dropped by a RAF Liberator bomber of 120 Squadron on 29 April 1945 in the North Atlantic, NW of Ireland in position 56°04′N 11°06′W / 56.067°N 11.100°W / 56.067; -11.100.

Summary of raiding history

Date Ship Nationality Tonnage Fate[6]
6 February 1945 Everleigh  United Kingdom 5,222 Sunk
11 February 1945 Persier  United Kingdom 5,382 Sunk

See also

References

  1. Helgason, Guðmundur. "Type VIIC/41". German U-boats of WWII - uboat.net. Retrieved 23 March 2015.
  2. Helgason, Guðmundur. "Viktor Graf von Reventlow-Criminil". German U-boats of WWII - uboat.net. Retrieved 24 March 2015.
  3. Helgason, Guðmundur. "Werner Riecken (German Cross in Gold)". German U-boats of WWII - uboat.net. Retrieved 24 March 2015.
  4. de:Victor Graf von Reventlow-Criminil (1916-1992)
  5. 1 2 3 4 Gröner 1991, pp. 43-46.
  6. Helgason, Guðmundur. "Ships hit by U-1017". German U-boats of WWII - uboat.net. Retrieved 24 March 2015.

Bibliography

  • 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. 
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