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German submarine U-825 facts for kids

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History
Nazi Germany
Name U-825
Ordered 8 June 1942
Builder Schichau-Werke, Danzig
Yard number 1588
Laid down 19 July 1943
Launched 16 February 1944
Commissioned 4 May 1944
Fate
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
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
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
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 (4 bow, 1 stern)
  • 14 × torpedoes or 26 TMA mines
  • 1 × 8.8 cm (3.46 in) deck gun (220 rounds)
  • 1 × 3.7 cm (1.5 in) Flak M42 AA gun
  • 2 × twin 2 cm (0.79 in) C/30 anti-aircraft guns
Service record
Part of:
  • 8th U-boat Flotilla
  • 4 May – 30 November 1944
  • 11th U-boat Flotilla
  • 1 December 1944 – 8 May 1945
Commanders:
  • Oblt.z.S. Gerhard Stoelker
  • 4 May 1944 – 13 May 1945
Operations:
  • 2 patrols:
  • 1st patrol:
  • 29 December 1944 – 18 February 1945
  • 2nd patrol:
  • 1 April – 13 May 1945
Victories:
  • 1 merchant ship damaged
    (7,198 GRT)
  • 1 merchant ship total loss
    (8,262 GRT)

German submarine U-825 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 19 July 1943 by Schichau-Werke, Danzig as yard number 1588, launched on 16 February 1944 and commissioned on 4 May 1944 under Oberleutnant zur See Gerhard Stoelker.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-825 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 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).

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-825 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), one 3.7 cm (1.5 in) Flak M42 and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.

Service history

The boat's career began with training at 8th Flotilla on 4 May 1944, followed by active service on 1 December 1944 as part of the 11th Flotilla.

Wolfpacks

U-825 took part in no wolfpacks.

Fate

U-825 surrendered on 13 May 1945 at Loch Eriboll. She was then sunk on 3 January 1946 at 55°31′N 07°30′W / 55.517°N 7.500°W / 55.517; -7.500 as part of Operation Deadlight.

Summary of raiding history

Date Ship Name Nationality Tonnage
(GRT)
Fate
27 January 1945 Solør  Norway 8,262 Total loss
27 January 1945 Ruben Dario  United States 7,198 Damaged
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