German submarine U-52 (1939)

For other ships with the same name, see German submarine U-52.

Although this photograph is undated, it was probably taken pre-war, as U-52's number, here visible on the conning tower, was painted out on the commencement of hostilities
History
Nazi Germany
Name:	U-52
Ordered:	15 May 1937
Builder:	Germaniawerft, Kiel
Cost:	4,439,000 Reichsmark
Yard number:	587
Laid down:	9 March 1937
Launched:	21 December 1938
Commissioned:	4 February 1939
Struck:	October 1943
Fate:	Scuttled at Danzig, 3 May 1945, broken up, 1946-7
General characteristics
Class & type:	Type VIIB U-boat
Displacement:	753 t (741 long tons) surfaced 857 t (843 long tons) submerged
Length:	66.50 m (218 ft 2 in) o/a 48.80 m (160 ft 1 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
Range:	8,700 nmi (16,112 km; 10,012 mi) at 10 knots (19 km/h; 12 mph)surfaced 90 nmi (170 km; 100 mi) at 4 knots (7.4 km/h; 4.6 mph)
Test depth:	230 m (750 ft) Calculated crush depth: 250–295 m (820–968 ft)
Complement:	4 officers, 40–56 enlisted
Sensors and processing systems:	Gruppenhorchgerät
Armament:	5 × 53.3 cm (21 in) torpedo tubes (four bow, one stern) 14 × torpedoes or 26 TMA mines 1 × 8.8 cm (3.46 in) deck gun (220 rounds) 1 × 2 cm (0.79 in) anti-aircraft gun
Service record
Part of:	7th U-boat Flotilla 4 February – 31 May 1939 1 September – 31 December 1939 1 January 1940 – 31 May 1941 26th U-boat Flotilla 1 June – 31 March 1942 24th U-boat Flotilla 1 April 1940 – 30 September 1943 23rd U-boat Flotilla 1 – 21 October 1943
Commanders:	Oblt.z.S. Wolfgang Barten 4 February – 17 September 1939 Kptlt. Otto Salman 14 November 1939 – 9 June 1941 Kptlt. Helmut Möhlmann 20 March – 15 April 1941 Kptlt. Otto Salman April – June 1941 Oblt.z.S. Wolf-Rüdiger von Rabenau 10 June – 6 July 1941 Oblt.z.S. Freiherr Walter von Freyberg-Eisenberg-Allmendingen 7 July 1941 – 13 January 1942 Oblt.z.S. Friedrich Mumm 16 January – 24 July 1942 Oblt.z.S. Hermann Rossmann 25 July 1942 – 31 March 1943 Oblt.z.S. Ernst-August Racky 1 April – 22 October 1943
Operations:	Eight: 1st patrol: 19 August – 17 September 1939 2nd patrol: 27 February – 4 April 1940 3rd patrol: 7–29 April 1940 4th patrol: 8 June – 21 July 1940 5th patrol: 27 July – 13 August 1940 6th patrol: 17 November – 28 December 1940 7th patrol: 22 January – 24 February 1941 8th patrol: 3 April – 1 May 1941
Victories:	Thirteen vessels sunk (56,333 GRT)

German submarine U-52 was a type VIIB U-boat of Nazi Germany's Kriegsmarine during World War II. She was initially ordered on 15 May 1937, in violation of the terms of the Treaty of Versailles, and laid down on 9 March 1938, at the yards of Friedrich Krupp Germaniawerft AG in Kiel as yard number 587. Launched on 21 December 1938, she was commissioned on 4 February 1939, under the command of Kapitänleutnant (Kptlt.) Wolfgang Barten.

U-52 undertook eight war patrols in the Battle of the Atlantic, she sank thirteen ships before being scuttled at Danzig in 1945 and broken up in 1947.

Design

German Type VIIB submarines were preceded by the shorter Type VIIA submarines. U-52 had a displacement of 753 tonnes (741 long tons) when at the surface and 857 tonnes (843 long tons) while submerged. She had a total length of 66.50 m (218 ft 2 in), a pressure hull length of 48.80 m (160 ft 1 in), a beam of 6.20 m (20 ft 4 in), a height of 9.50 m (31 ft 2 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two MAN M 6 V 40/46 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 BBC 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).

The submarine had a maximum surface speed of 17.9 knots (33.2 km/h; 20.6 mph) and a maximum submerged speed of 8 knots (15 km/h; 9.2 mph). When submerged, the boat could operate for 90 nautical miles (170 km; 100 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,700 nautical miles (16,100 km; 10,000 mi) at 10 knots (19 km/h; 12 mph). U-52 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 2 cm (0.79 in) anti-aircraft gun The boat had a complement of between forty-four and sixty.

Service history

1st patrol

U-52's first patrol began with her departure from Kiel on 19 August 1939, well before the outbreak of war. She crossed the North Sea and headed for the Atlantic Ocean via the 'gap' between Iceland and the Faroe Islands. The most southerly point of the patrol was reached on 1 September, the same day that Germany began the invasion of Poland.

2nd patrol

After a series of short trips from Kiel to the German-administered island of Helgoland, (also known as Heligoland) and then Wilhelmshaven, the boat left Helgoland on 27 February 1940 and arrived at Wilhelmshaven on 4 April.

3rd patrol

Three days later, U-52 began her third sortie. It was very similar to her second; but success continued to elude her. She crossed the North Sea and swept the area between the Faroes and Shetland Islands.

4th patrol

Having sailed in a southerly direction to the west of Ireland, the boat sank The Monarch 60 nautical miles (110 km; 69 mi) west of Belle Ile in the Bay of Biscay on 19 June 1940. Moving further into the Bay, U-52 came across the Ville de Namur. At first the Germans were under the impression that large wooden structures on deck were for weapons, when they were stables for horses. Nevertheless, the vessel was sunk; she went down in five minutes.

She also sank the Hilda on 21 June and the Thetis A. on 14 July. The latter vessel had already been attacked, but the torpedo used malfunctioned, (a common occurrence in the early months of the war).

5th patrol

Foray number five was in terms of tonnage sunk, her most successful; she destroyed the Gogovale on 4 August 1940 about 300 nautical miles (560 km; 350 mi) west southwest of Bloody Foreland (County Donegal in Ireland). On about the same day the submarine was badly damaged by British escorts; repairs took four months to implement.

6th patrol

Her tally rose steadily with the demise of the Tasso and the Goodleigh on the same day (2 December 1940). Both ships went to the bottom about 360 nautical miles (670 km; 410 mi) west of Bloody Foreland.

7th patrol

Continuing her hunting in mid-Atlantic, U-52 sank the Ringhorn on 4 February 1941 and the Canford Chine about 165 nautical miles (306 km; 190 mi) southwest of Rockall, (a tiny outcrop), on the 10th. There were no survivors from the second ship.

8th patrol

She sank the Saleier on 10 April 1941. According to 'Uboat.net', the ship went down in 15 seconds but there were 63 survivors.

Her last recorded victim was the Ville de Liège, a Belgian-registered vessel which was successfully attacked about 700 nautical miles (1,300 km; 810 mi) east of Cape Farewell, (southern Greenland) on 14 April.

Summary of raiding history

Date	Ship	Nationality	Tonnage	Fate
19 June 1940	The Monarch	United Kingdom	824	Sunk
19 June 1940	Ville de Namur	Belgium	7,463	Sunk
21 June 1940	Hilda	Finland	1,144	Sunk
14 July 1940	Thetis A.	Greece	4,111	Sunk
4 August 1940	Geraldine Mary	United Kingdom	7,244	Sunk
4 August 1940	Gogovale	United Kingdom	4,586	Sunk
4 August 1940	King Alfred	United Kingdom	5,272	Sunk
2 December 1940	Goodleigh	United Kingdom	5,448	Sunk
2 December 1940	Tasso	United Kingdom	1,586	Sunk
4 February 1941	Ringhorn	Norway	1,298	Sunk
10 February 1941	Canford Chine	United Kingdom	3,364	Sunk
10 April 1941	Saleier	Netherlands	6,563	Sunk
14 April 1941	Ville de Liège	Belgium	7,430	Sunk