German submarine U-407

History
Nazi Germany
Name:	U-407
Ordered:	16 October 1939
Builder:	Danziger Werft, Danzig
Yard number:	108
Laid down:	12 September 1940
Launched:	16 August 1941
Commissioned:	18 December 1941
Fate:	Sunk 19 September 1944 in the Mediterranean in position 36°27′N 24°33′E / 36.450°N 24.550°E / 36.450; 24.550, by depth charges from HMS Troubridge, HMS Terpsichore and ORP Garland.
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
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 (4 bow, 1 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 18 December 1941 – 31 August 1942 - Training 9th U-boat Flotilla 1 September – 30 November 1942 29th U-boat Flotilla 1 October 1942 – 19 September 1944
Commanders:	Kptlt. Ernst-Ulrich Brüller 18 December 1941 – 14 January 1944 Oblt.z.S. Hubertus Korndörfer 14 January 1944 – 8 September 1944 Oblt.z.S. Hans Kolbus 9 September 1944 – 19 September 1944
Operations:	1st patrol: 15 August – 9 October 1942 2nd patrol: 2–26 November 1942 3rd patrol: 17 January 1943 – 26 February 1943 4th patrol: 21 April – 8 May 1943 5th patrol: 7–30 July 1943 6th patrol: 17 August – 8 September 1943 7th patrol: 9–12 September 1943 8th patrol: 11 November – 12 December 1943 9th patrol: 29 January – 12 March 1944 10th patrol: 13 April – 10 May 1944 11th patrol: 21 August – 4 September 1944 12th patrol: 9–19 September 1944
Victories:	3 merchant ships sunk (26,892 GRT) 1 merchant ship total loss (7,176 GRT) 1 merchant ship damaged (6,207 GRT) 2 warships damaged (17,900 tons)

German submarine U-407 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine during World War II. She was laid down on 12 September 1940 by Danziger Werft, Danzig as yard number 108, launched on 16 August 1941 and commissioned on 18 December 1941 under Oberleutnant zur See Ernst-Ulrich Brüller.

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-407 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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