German submarine U-239

History
Nazi Germany
Name:	U-239
Ordered:	20 January 1941
Builder:	Germaniawerft, Kiel
Yard number:	669
Laid down:	14 May 1942
Launched:	28 January 1943
Commissioned:	13 March 1943
Fate:	Damaged in July 1944, broken up in the same year
General characteristics
Class & 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)
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.
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 (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:	5th U-boat Flotilla 13 March – 1 July 1943 22nd U-boat Flotilla 1 July 1943 – 24 July 1944 31st U-boat Flotilla 25 July – 5 August 1944
Commanders:	Kptlt. Hubert Nordheimer 3 January – 14 May 1943
Operations:	None
Victories:	None

German submarine U-239 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

The submarine was laid down on 14 May 1942 at the Friedrich Krupp Germaniawerft yard at Kiel as yard number 669, launched on 28 January 1943 and commissioned on 13 March under the command of Leutnant zur See Ulrich Vöge.

After training with the 5th U-boat Flotilla at Kiel, she went to the 22nd flotilla as a 'school' boat and then back to the 5th flotilla.

She was damaged in Kiel by British bombs in July 1944 and broken up in the same year.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-239 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 AEG GU 460/8-276 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).

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-239 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.

Fate

She was damaged in a British air raid at the Germania Werke in Kiel on 24 July 1944 which also killed one crewman, she was then broken up later that same year.