German submarine U-564

History
Nazi Germany
Name	U-564
Ordered	24 October 1939
Builder	Blohm & Voss, Hamburg
Yard number	540
Laid down	30 March 1940
Launched	7 February 1941
Commissioned	3 April 1941
Fate	Sunk on 14 June 1943
General characteristics
Class & type	Type VIIC U-boat
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) surfaced; 80 nmi (150 km; 92 mi) submerged;
Test depth	230 m (750 ft); Calculated crush depth: 250–295 m (820–968 ft);
Complement	44 to 52 officers and ratings
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 x 2 cm (0.79 in) C/30 AA gun;
Service record
Part of	1st U-boat Flotilla; 3 April – 14 June 1943;
Identification codes	M 40 175
Commanders	K.Kapt. Reinhard Suhren; 3 April 1941 – 1 October 1942; Oblt.z.S. Hans Fiedler; 1 October 1942 – 14 June 1943;
Operations	9 patrols:; 1st patrol:; 17 June – 27 July 1941; 2nd patrol:; 16 – 27 August 1941; 3rd patrol:; a. 16 September – 1 November 1941; b. 11 – 12 January 1942; 4th patrol:; 18 January – 6 March 1942; 5th patrol:; 4 April – 6 June 1942; 6th patrol:; 9 July – 18 September 1942; 7th patrol:; 27 October – 30 December 1942; 8th patrol:; 11 March – 15 April 1943; 9th patrol: ; a. 15 – 17 May 1943; b. 31 May – 3 June 1943; c. 9 – 14 June 1943;
Victories	18 merchant ships sunk ; (95,544 GRT); 1 warship sunk ; (900 tons); 4 merchant ships damaged ; (28,907 GRT);

German submarine U-564 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during the Second World War. The RAF sank her in the Bay of Biscay on 14 June 1943.