German submarine U-155 (1941)

U-505, a typical Type IXC boat
History
Nazi Germany
Name:	U-155
Ordered:	25 September 1939
Builder:	DeSchiMAG AG Weser, Bremen
Yard number:	997
Laid down:	1 October 1940
Launched:	12 May 1941
Commissioned:	23 August 1941
Fate:	Surrendered at Fredericia, 8 May 1945 Sunk during Operation Deadlight on 21 December 1945
General characteristics
Class and type:	Type IXC submarine
Displacement:	1,120 t (1,100 long tons) surfaced 1,232 t (1,213 long tons) submerged
Length:	76.76 m (251 ft 10 in) o/a 58.75 m (192 ft 9 in) pressure hull
Beam:	6.76 m (22 ft 2 in) o/a 4.40 m (14 ft 5 in) pressure hull
Height:	9.60 m (31 ft 6 in)
Draught:	4.70 m (15 ft 5 in)
Installed power:	4,400 PS (3,200 kW; 4,300 bhp) (diesels) 1,000 PS (740 kW; 990 shp) (electric)
Propulsion:	2 shafts 2 × diesel engines 2 × electric motors
Range:	13,450 nmi (24,910 km; 15,480 mi) at 10 knots (19 km/h; 12 mph) surfaced 64 nmi (119 km; 74 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:	230 m (750 ft)
Complement:	4 officers, 44 enlisted48 to 56
Armament:	6 × torpedo tubes (4 bow, 2 stern) 22 × 53.3 cm (21 in) torpedoes 1 × 10.5 cm (4.1 in) deck gun (180 rounds) 1 × 3.7 cm (1.5 in) AA gun 1 × twin 2 cm FlaK 30 AA guns
Service record
Part of:	Kriegsmarine 4th U-boat Flotilla 10th U-boat Flotilla 33rd U-boat Flotilla
Identification codes:	M 01 188
Commanders:	Adolf Piening Johannes Rudolph Ludwig von Friedeburg Erwin Witte Friedrich Altmeier
Operations:	10 patrols
Victories:	25 ships sunk for a total of 126,664 GRT one warship sunk for a total of 13,785 tons one auxiliary warship damaged for a total of 6,736 GRT

German submarine U-155 was a Type IXC U-boat of Nazi Germany's Kriegsmarine built for service during World War II. Her keel was laid down on 1 October 1940 by DeSchiMAG AG Weser in Bremen as yard number 997. She was launched on 12 May 1941 and commissioned on 23 August with Kapitänleutnant Adolf Piening in command. Piening was relieved in February 1944 (after being promoted to Korvettenkapitän), by Oberleutnant zur See Johannes Rudolph.

German Type IXC submarines were slightly larger than the original Type IXBs. U-155 had a displacement of 1,120 tonnes (1,100 long tons) when at the surface and 1,232 tonnes (1,213 long tons) while submerged. The U-boat had a total length of 76.76 m (251 ft 10 in), a pressure hull length of 58.75 m (192 ft 9 in), a beam of 6.76 m (22 ft 2 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.70 m (15 ft 5 in). The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of 4,400 metric horsepower (3,240 kW; 4,340 shp) for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1,000 metric horsepower (740 kW; 990 shp) for use while submerged. She had two shafts and two 1.92 m (6 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).