German submarine U-848

U-848 under attack from a very low flying aircraft.
History
Nazi Germany
Name:	U-848
Ordered:	20 January 1941
Builder:	AG Weser, Bremen
Yard number:	1054
Laid down:	6 January 1942
Launched:	6 October 1942
Commissioned:	20 February 1943
Motto:	et quo volverunt! (and the wish!)
Fate:	Sunk, 5 November 1943 (10°09′S 18°00′W / 10.150°S 18.000°W / -10.150; -18.000Coordinates: 10°09′S 18°00′W / 10.150°S 18.000°W / -10.150; -18.000)
General characteristics
Class and type:	Type IXD2 submarine
Displacement:	1,610 t (1,580 long tons) surfaced 1,799 t (1,771 long tons) submerged
Length:	87.58 m (287 ft 4 in) o/a 68.50 m (224 ft 9 in) pressure hull
Beam:	7.50 m (24 ft 7 in) o/a 4.40 m (14 ft 5 in) pressure hull
Height:	10.20 m (33 ft 6 in)
Draught:	5.35 m (17 ft 7 in)
Installed power:	9,000 PS (6,620 kW; 8,880 bhp) (diesels) 1,000 PS (740 kW; 990 shp) (electric)
Propulsion:	2 shafts 2 × diesel engines 2 × electric motors
Speed:	20.8 knots (38.5 km/h; 23.9 mph) surfaced 6.9 knots (12.8 km/h; 7.9 mph) submerged
Range:	12,750 nmi (23,610 km; 14,670 mi) at 10 knots (19 km/h; 12 mph) surfaced 57 nmi (106 km; 66 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:	230 m (750 ft)
Complement:	55 to 64
Armament:	6 × torpedo tubes (four bow, two stern) 24 × 53.3 cm (21 in) torpedoes 1 × 10.5 cm (4.1 in) SK L/45 deck gun (150 rounds) anti-aircraft guns
Service record
Part of:	4th U-boat Flotilla 20 February 1943 – 31 July 1943 12th U-boat Flotilla 1 August 1943 – 5 November 1943
Commanders:	Korvettenkapitän Wilhelm Rollmann 20 February 1943 – 5 November 1943
Operations:	1st patrol: 18 September – 5 November 1943
Victories:	1 commercial ship sunk (4,573 GRT)

German submarine U-848 was a Type IXD2 U-boat built for Nazi Germany's Kriegsmarine during World War II. Laid down in Bremen and completed in February 1943, the boat was a long-range Type IX, with four bow and two stern torpedo tubes.

She was commanded throughout her brief service life by Korvettenkapitän Wilhelm Rollmann, who led her through her sea trials and onto her first war patrol on 18 September 1943.

German Type IXD2 submarines were considerably larger than the original Type IXs. U-848 had a displacement of 1,610 tonnes (1,580 long tons) when at the surface and 1,799 tonnes (1,771 long tons) while submerged. The U-boat had a total length of 87.58 m (287 ft 4 in), a pressure hull length of 68.50 m (224 ft 9 in), a beam of 7.50 m (24 ft 7 in), a height of 10.20 m (33 ft 6 in), and a draught of 5.35 m (17 ft 7 in). The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines plus two MWM RS34.5S six-cylinder four-stroke diesel engines for cruising, producing a total of 9,000 metric horsepower (6,620 kW; 8,880 shp) for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1,000 shaft horsepower (1,010 PS; 750 kW) for use while submerged. She had two shafts and two 1.85 m (6 ft) propellers. The boat was capable of operating at depths of up to 200 metres (660 ft).