German submarine U-523

	U-505, a typical Type IXC boat
History
Nazi Germany
Name	U-523
Ordered	14 February 1940
Builder	Deutsche Werft, Hamburg
Yard number	338
Laid down	4 August 1941
Launched	15 April 1942
Commissioned	25 June 1942
Fate	Sunk on 25 August 1943
General characteristics
Class and type	Type IXC submarine
Displacement	1,120 t (1,100 long tons) surfaced; 1,232 t (1,213 long tons) submerged;
Length	76.76 m (251 ft 10 in) o/a; 58.75 m (192 ft 9 in) pressure hull;
Beam	6.76 m (22 ft 2 in) o/a; 4.40 m (14 ft 5 in) pressure hull;
Height	9.60 m (31 ft 6 in)
Draught	4.70 m (15 ft 5 in)
Installed power	4,400 PS (3,200 kW; 4,300 bhp) (diesels); 1,000 PS (740 kW; 990 shp) (electric);
Propulsion	2 shafts; 2 × diesel engines; 2 × electric motors;
Speed	18.3 knots (33.9 km/h; 21.1 mph) surfaced; 7.3 knots (13.5 km/h; 8.4 mph) submerged;
Range	13,450 nmi (24,910 km; 15,480 mi) at 10 knots (19 km/h; 12 mph) surfaced; 63 nmi (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	230 m (750 ft)
Complement	48 to 56
Armament	6 × torpedo tubes (4 bow, 2 stern); 22 × 53.3 cm (21 in) torpedoes; 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds); 1 × 3.7 cm (1.5 in) SK C/30 AA gun; 1 × twin 2 cm FlaK 30 AA guns;
Service record
Part of:	4th U-boat Flotilla; 25 June 1942 – 31 January 1943; 10th U-boat Flotilla; 1 February – 25 August 1943;
Identification codes:	M 06 935
Commanders:	Kptlt. Werner Pietzsch; 25 June 1942 – 25 August 1943;
Operations:	4 patrols:; 1st patrol:; 9 February – 16 April 1943; 2nd patrol:; 22 – 26 May 1943; 3rd patrol:; 1 – 3 August 1943; 4th patrol:; 16 – 25 August 1943;
Victories:	1 merchant ship sunk ; (5,848 GRT)

German submarine U-523 was a Type IXC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 4 August 1941 at the Deutsche Werft yard in Hamburg as yard number 338. She was launched on 15 April 1942, and commissioned on 25 June under the command of Kapitänleutnant Werner Pietzsch. After training with the 4th U-boat Flotilla in the Baltic Sea, the U-boat was transferred to the 10th flotilla for front-line service on 1 February 1943.^[2]

^ Kemp 1999, p. 144.
^ ^a ^b Helgason, Guðmundur. "The Type IXC boat U-523". German U-boats of WWII - uboat.net. Retrieved 5 February 2010.
^ Helgason, Guðmundur. "War Patrols by German U-boat U-523". German U-boats of WWII - uboat.net. Retrieved 5 February 2010.

[FOOTNOTEKemp1999144-1] Kemp 1999, p. 144.

[uboatnet-2] Helgason, Guðmundur. "The Type IXC boat U-523". German U-boats of WWII - uboat.net. Retrieved 5 February 2010.

[patrols-3] Helgason, Guðmundur. "War Patrols by German U-boat U-523". German U-boats of WWII - uboat.net. Retrieved 5 February 2010.

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[2]

[3]

History
U-505, a typical Type IXC boat
Nazi Germany
Name	U-523
Ordered	14 February 1940
Builder	Deutsche Werft, Hamburg
Yard number	338
Laid down	4 August 1941
Launched	15 April 1942
Commissioned	25 June 1942
Fate	Sunk on 25 August 1943^[1]
General characteristics
Class and type	Type IXC submarine
Displacement	1,120 t (1,100 long tons) surfaced 1,232 t (1,213 long tons) submerged
Length	76.76 m (251 ft 10 in) o/a 58.75 m (192 ft 9 in) pressure hull
Beam	6.76 m (22 ft 2 in) o/a 4.40 m (14 ft 5 in) pressure hull
Height	9.60 m (31 ft 6 in)
Draught	4.70 m (15 ft 5 in)
Installed power	4,400 PS (3,200 kW; 4,300 bhp) (diesels) 1,000 PS (740 kW; 990 shp) (electric)
Propulsion	2 shafts 2 × diesel engines 2 × electric motors
Speed	18.3 knots (33.9 km/h; 21.1 mph) surfaced 7.3 knots (13.5 km/h; 8.4 mph) submerged
Range	13,450 nmi (24,910 km; 15,480 mi) at 10 knots (19 km/h; 12 mph) surfaced 63 nmi (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	230 m (750 ft)
Complement	48 to 56
Armament	6 × torpedo tubes (4 bow, 2 stern) 22 × 53.3 cm (21 in) torpedoes 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds) 1 × 3.7 cm (1.5 in) SK C/30 AA gun 1 × twin 2 cm FlaK 30 AA guns
Service record^[2]^[3]
Part of:	4th U-boat Flotilla 25 June 1942 – 31 January 1943 10th U-boat Flotilla 1 February – 25 August 1943
Identification codes:	M 06 935
Commanders:	Kptlt. Werner Pietzsch 25 June 1942 – 25 August 1943
Operations:	4 patrols: 1st patrol: 9 February – 16 April 1943 2nd patrol: 22 – 26 May 1943 3rd patrol: 1 – 3 August 1943 4th patrol: 16 – 25 August 1943
Victories:	1 merchant ship sunk (5,848 GRT)

German submarine U-523

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