German submarine U-985

History
Nazi Germany
Name	U-985
Ordered	25 May 1941
Builder	Blohm & Voss, Hamburg
Yard number	185
Laid down	18 September 1942
Launched	20 May 1943
Commissioned	24 June 1943
Fate	Decommissioned on 15 November 1944 following heavy damage suffered on 23 October 1944 when she hit a German mine at Lister in Southern Norway
General characteristics
Class and type	Type VIIC submarine
Displacement	769 tonnes (757 long tons) surfaced; 871 t (857 long tons) submerged;
Length	67.10 m (220 ft 2 in) o/a; 50.50 m (165 ft 8 in) pressure hull;
Beam	6.20 m (20 ft 4 in) o/a; 4.70 m (15 ft 5 in) pressure hull;
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	2 shafts; 2 × diesel engines; 2 × electric motors;
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); Crush depth: 250–295 m (820–968 ft);
Complement	4 officers, 40–56 enlisted
Armament	5 × 53.3 cm (21 in) torpedo tubes (4 bow, 1 stern); 14 × torpedoes or 26 TMA mines; 1 × 8.8 cm (3.46 in) deck gun (220 rounds); 1 × twin 2 cm (0.79 in) C/30 anti-aircraft gun;
Service record
Part of:	5th U-boat Flotilla; 24 June – 31 December 1943; 7th U-boat Flotilla; 1 January – 15 November 1944;
Identification codes:	M 53 813
Commanders:	Kptlt. Horst Wilhelm Kessler; 24 June 1943 – 19 April 1944; Kptlt. Heinz Wolff; 20 April – 15 November 1944;
Operations:	3 patrols:; 1st patrol:; 19 January – 12 March 1944; 2nd patrol:; 6 – 15 June 1944; 3rd patrol:; a. 30 August – 23 October 1944; b. 25 – 26 October 1944;
Victories:	1 merchant ship sunk ; (1,735 GRT)

German submarine U-985 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 18 September 1942 by Blohm & Voss, Hamburg as yard number 185, launched on 20 May 1943 and commissioned on 24 June 1943 under Kapitänleutnant Horst Wilhelm Kessler.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-985 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.^[2] 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 Brown, Boveri & Cie GG UB 720/8 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).^[2]

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).^[2] 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-985 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 one twin 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.^[2]

Service history

The boat's career began with training at 5th U-boat Flotilla on 24 June 1943, followed by active service on 1 January 1944 as part of the 7th Flotilla for the remainder of her service.

In three patrols she sank one merchant ship, for a total of 1,735 gross register tons (GRT).

Wolfpacks

U-985 took part in four wolfpacks, namely:

Stürmer (26 January – 3 February 1944)
Igel 1 (3 – 17 February 1944)
Hai 1 (17 – 22 February 1944)
Preussen (22 February – 10 March 1944)

Fate

U-985 was decommissioned on 15 November 1944 following heavy damage suffered on 23 October 1944 when she hit a German mine at Lister in Southern Norway. She returned to Kristiansand and taken out of service. She was captured at the end of the war and broken up.

Summary of raiding history

Date	Ship Name	Nationality	Tonnage (GRT)	Fate^[3]
8 February 1944	Margit	United Kingdom	1,735	Sunk

References

^ Helgason, Guðmundur. "The Type VIIC boat U-985". German U-boats of WWII - uboat.net. Retrieved 4 September 2014.
^ ^a ^b ^c ^d Gröner 1991, pp. 43–46.
^ Helgason, Guðmundur. "Ships hit by U-985". German U-boats of WWII - uboat.net. Retrieved 4 September 2014.

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.
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, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 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.

External links

Helgason, Guðmundur. "The Type VIIC boat U-985". German U-boats of WWII - uboat.net. Retrieved 29 December 2014.
Hofmann, Markus. "U 985". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 29 December 2014.