German submarine U-862

History
Nazi Germany
Name:	U-862
Ordered:	5 June 1941
Builder:	DeSchiMAG AG Weser, Bremen
Yard number:	1068
Laid down:	15 August 1942
Launched:	8 June 1943
Commissioned:	7 October 1943
Fate:	Taken over by Japan, 6 May 1945
Japan
Name:	I-502
Acquired:	6 May 1945
Commissioned:	15 July 1945
Fate:	Surrendered, August 1945 Scuttled, 13 February 1946
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:	5.40 m (17 ft 9 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 7 October 1943 – 30 April 1944 12th U-boat Flotilla 1 May – 30 September 1944 33rd U-boat Flotilla 1 October 1944 – 6 May 1945
Commanders:	K.Kapt. Heinrich Timm 7 October 1943 – 8 May 1945
Operations:	1st patrol: 3 June – 9 September 1944 2nd patrol: 18 November 1944 – 15 February 1945
Victories:	7 commercial ships sunk (42,374 GRT)

German submarine U-862 was a Type IXD2 U-boat of Nazi Germany's Kriegsmarine during World War II. After Germany's surrender in May 1945, U-862 put into Singapore and was taken over by the Imperial Japanese Navy under the name I-502.

U-862 was laid down on 15 August 1942 by DeSchiMAG AG Weser of Bremen. She was commissioned on 7 October 1943 with Kapitänleutnant Heinrich Timm in command. Timm commanded U-862 for her entire career in Kriegsmarine, receiving a promotion to Korvettenkapitän on 1 July 1944. U-862 conducted two patrols, sinking seven ships totalling 42,374 tons.

German Type IXD2 submarines were considerably larger than the original Type IXs. U-862 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).

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