German submarine U-136 (1941)

History
Nazi Germany
Name:	U-136
Ordered:	7 August 1939
Builder:	Bremer Vulkan, Bremen-Vegesack
Yard number:	15
Laid down:	2 October 1940
Launched:	5 July 1941
Commissioned:	30 August 1941
Fate:	Sunk by depth charges from a French warship, 11 July 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)
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
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) Calculated 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 or 26 TMA mines 1 × 8.8 cm (3.46 in) deck gun (220 rounds) various AA guns
Service record
Part of:	6th U-boat Flotilla 30 August – 31 December 1941 6th U-boat Flotilla 1 January – 11 July 1942
Commanders:	Kptlt. Heinrich Zimmermann 30 August 1941 – 11 July 1942
Operations:	Three 1st patrol: 22 January – 1 March 1942 2nd patrol: 30 March – 20 May 1942 3rd patrol: 29 June – 11 July 1942
Victories:	Five commercial ships sunk (23,649 GRT) Two warships sunk (1,850 tons) One ship damaged (8,955 GRT)

German submarine U-136 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

She was laid down at Vulkan-Vegesackerwerft in Bremen on 2 October 1940 as yard number 15, launched on 5 July 1941 and commissioned on 30 August with Kapitänleutnant Heinrich Zimmermann in command.

Her service career began with the commencement of crew training with the 6th U-boat Flotilla on her commissioning date. She became operational on 1 January 1942, also with the 6th flotilla.

She sank five ships, with a total of 23,649 gross register tons (GRT) and two warships totalling 1,850 tons. She also damaged one ship of 8,955 GRT.

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-136 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 MAN 6-cylinder 4-stroke M6V 40/46 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 Brown, Boveri & Cie GG UB 720/8 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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