German submarine U-757

History
Nazi Germany
Name	U-757
Ordered	9 October 1939
Builder	Kriegsmarinewerft Wilhelmshaven
Yard number	140
Laid down	18 May 1940
Launched	14 December 1941
Commissioned	28 February 1942
Fate	Sunk on 8 January 1944
General characteristics
Class & 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;
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	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	4officers, 40–56 enlisted
Armament	5 × 53.3 cm (21 in) torpedo tubes (four bow, one stern); 14 × torpedoes; 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:	6th U-boat Flotilla; 28 February 1942 – 8 January 1944;
Identification codes:	M 39 567
Commanders:	Oblt.z.S. / K.Kapt. Friedrich Deetz; 28 February 1942 – 8 January 1944;
Operations:	5 patrols:; 1st patrol:; 26 September – 24 October 1942; 2nd patrol:; 12 – 25 December 1942; 3rd patrol:; 22 February – 18 March 1943; 4th patrol:; 7 July – 4 September 1943; 5th patrol: ; a. 31 October – 2 November 1943; b. 16 – 18 November 1943; c. 20 – 22 November 1943; d. 29 November – 1 December 1943; e. 29 December 1943 – 8 January 1944;
Victories:	2 merchant ships sunk ; (11,313 GRT); 1 warship sunk ; (291 tons);

German submarine U-757 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. Laid down as yard number 140 at the Kriegsmarinewerft (KMW) in Wilhelmshaven, U-757 served with 6th U-boat Flotilla from 28 February 1942 until 8 January 1944 under the command of Korvettenkapitän Friedrich Deetz.

History

Nazi Germany
Name	U-757
Ordered	9 October 1939
Builder	Kriegsmarinewerft Wilhelmshaven
Yard number	140
Laid down	18 May 1940
Launched	14 December 1941
Commissioned	28 February 1942
Fate	Sunk on 8 January 1944
General characteristics
Class & 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
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	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	4officers, 40–56 enlisted
Armament	5 × 53.3 cm (21 in) torpedo tubes (four bow, one stern) 14 × torpedoes 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:	6th U-boat Flotilla 28 February 1942 – 8 January 1944
Identification codes:	M 39 567
Commanders:	Oblt.z.S. / K.Kapt. Friedrich Deetz 28 February 1942 – 8 January 1944
Operations:	5 patrols: 1st patrol: 26 September – 24 October 1942 2nd patrol: 12 – 25 December 1942 3rd patrol: 22 February – 18 March 1943 4th patrol: 7 July – 4 September 1943 5th patrol: a. 31 October – 2 November 1943 b. 16 – 18 November 1943 c. 20 – 22 November 1943 d. 29 November – 1 December 1943 e. 29 December 1943 – 8 January 1944
Victories:	2 merchant ships sunk (11,313 GRT) 1 warship sunk (291 tons)