German submarine U-457

History
Nazi Germany
Name	U-457
Ordered	16 January 1940
Builder	Deutsche Werke, Kiel
Yard number	288
Laid down	26 October 1940
Launched	4 October 1941
Commissioned	5 November 1941
Fate	Sunk northeast of the North Cape by a British warship on 16 September 1942
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;
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	4 officers, 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; 5 November 1941 – 30 June 1942; 11th U-boat Flotilla; 1 July – 16 September 1942;
Identification codes:	M 36 700
Commanders:	K.Kapt. Karl Brandenburg; 5 November 1941 – 16 September 1942;
Operations:	3 patrols:; 1st patrol:; a. 28 June – 16 July 1942; b. 18 – 20 July 1942; 2nd patrol:; 8 August – 7 September 1942; 3rd patrol:; 10 – 16 September 1942;
Victories:	2 merchant ships sunk ; (15,593 GRT); 1 merchant ship damaged ; (8,939 GRT);

German submarine U-457 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

She carried out three patrols, on which she sank two ships and damaged one more.

She was sunk northeast of the North Cape by a British warship on 16 September 1942.^[1]

^ ^a ^b Kemp 1999, p. 90.
^ Helgason, Guðmundur. "The Type VIIC boat U-457". German U-boats of WWII – uboat.net. Retrieved 24 September 2012.

[FOOTNOTEKemp199990-1] Kemp 1999, p. 90.

[uboatnet-2] Helgason, Guðmundur. "The Type VIIC boat U-457". German U-boats of WWII – uboat.net. Retrieved 24 September 2012.

[1]

[2]

History

Nazi Germany
Name	U-457
Ordered	16 January 1940
Builder	Deutsche Werke, Kiel
Yard number	288
Laid down	26 October 1940
Launched	4 October 1941
Commissioned	5 November 1941
Fate	Sunk northeast of the North Cape by a British warship on 16 September 1942^[1]
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
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	4 officers, 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^[2]
Part of:	6th U-boat Flotilla 5 November 1941 – 30 June 1942 11th U-boat Flotilla 1 July – 16 September 1942
Identification codes:	M 36 700
Commanders:	K.Kapt. Karl Brandenburg 5 November 1941 – 16 September 1942
Operations:	3 patrols: 1st patrol: a. 28 June – 16 July 1942 b. 18 – 20 July 1942 2nd patrol: 8 August – 7 September 1942 3rd patrol: 10 – 16 September 1942
Victories:	2 merchant ships sunk (15,593 GRT) 1 merchant ship damaged (8,939 GRT)