German_submarine_U-865

German submarine <i>U-865</i>

German submarine U-865

German World War II submarine

German submarine U-865 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during the Second World War. She was laid down in Bremen, Germany on 5 January 1943, and launched on 12 July 1943.

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Design

German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-865 had a displacement of 1,144 tonnes (1,126 long tons) when at the surface and 1,257 tonnes (1,237 long tons) while submerged.[1] 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 6.86 m (22 ft 6 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.67 m (15 ft 4 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 shaft horsepower (1,010 PS; 750 kW) 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).[1]

The submarine had a maximum surface speed of 18.3 knots (33.9 km/h; 21.1 mph) and a maximum submerged speed of 7.3 knots (13.5 km/h; 8.4 mph).[1] When submerged, the boat could operate for 63 nautical miles (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 13,850 nautical miles (25,650 km; 15,940 mi) at 10 knots (19 km/h; 12 mph). U-865 was fitted with six 53.3 cm (21 in) torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one 10.5 cm (4.13 in) SK C/32 naval gun, 180 rounds, and a 3.7 cm (1.5 in) Flak M42 as well as two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of forty-eight.[1]

Service history

She had one commander, Oberleutnant zur See Dietrich Stellmacher, for her two patrols.[2] She had a crew complement of 59.

She did not sink any shipping on her two patrols, and went missing after leaving Trondheim in Norway on 9 September 1944, with all hands lost.

In late June/ early July 1944, she was attacked by an RAF B-24 Liberator, which did some damage to her, however she in turn did some damage to the attacking aircraft with the submarine's flak gun, setting the aircraft on fire. Both the U-boat and aircraft were forced to return to their respective bases.[3] [4]

References

  1. [1]
    Gröner 1991, p. 68.
  2. [2]
    Dietrich Stellmacher on Helgason, Guðmundur. "Dietrich Stellmacher". German U-boats of WWII – uboat.net. Retrieved 7 December 2014.
  3. [3]
    Helgason, Guðmundur. "The Type IXC/40 boat U-865". German U-boats of WWII – uboat.net. Retrieved 7 December 2014.
  4. [4]
    "U-boat Archive - BDU KTB PG30350". Retrieved 11 April 2017.

Bibliography
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