German submarine U-667

History
Nazi Germany
Name:	U-667
Ordered:	15 August 1940
Builder:	Deutsche Werft, Hamburg
Yard number:	816
Laid down:	16 August 1941
Launched:	29 August 1942
Commissioned:	21 October 1942
Fate:	Sunk 25 August 1944 in the Bay of Biscay in position 46°00′N 01°30′W / 46.000°N 1.500°W / 46.000; -1.500Coordinates: 46°00′N 01°30′W / 46.000°N 1.500°W / 46.000; -1.500, when she struck a mine.
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) various AA guns
Service record
Part of:	5th U-boat Flotilla 21 October 1942 – 31 May 1943 - Training 7th U-boat Flotilla 1 June 1943 – 25 August 1944
Commanders:	Kptlt. Heinrich Schroeteler 21 October 1942 - May 1944 Kptlt. Karl-Heinz Lange 10 July 1944 – 25 August 1944
Operations:	1st patrol: 20 May – 26 July 1943 2nd patrol: 14–16 September 1943 3rd patrol: 18 November 1943 – 6 January 1944 4th patrol: 8 March – 19 May 1944 5th patrol: 22 July – 25 August 1944
Victories:	4 merchant ships sunk (22,406 GRT)

German submarine U-667 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 16 August 1941 by Deutsche Werft, Hamburg as yard number 816, launched on 29 August 1942 and commissioned on 21 October 1942 under Kapitänleutnant Heinrich Schroeteler.

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-667 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 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 Siemens-Schuckert GU 343/38-8 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).

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