German submarine U-2365

German submarine U-2365 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 20 September 1944, and was laid down on 6 December 1944 at Deutsche Werft AG, Hamburg, as yard number 519. She was launched on 26 January 1945 and commissioned under the command of Oberleutnant zur See Fritz-Otto Korfmann on 2 March 1945.

Design
Like all Type XXIII U-boats, U-2365 had a displacement of 232 t when at the surface and 256 t while submerged. She had a total length of 34.14 m (o/a), a beam width of 3.02 m (o/a), and a draught depth of 3.66 m. The submarine was powered by one MWM six-cylinder RS134S diesel engine providing 575 PS, one AEG GU4463-8 double-acting electric motor electric motor providing 572 PS, and one BBC silent running CCR188 electric motor providing 35 PS.

The submarine had a maximum surface speed of 9.7 kn and a submerged speed of 12.5 kn. When submerged, the boat could operate at 4 kn for 202 nmi; when surfaced, she could travel 2600 nmi at 8 kn. U-2365 was fitted with two 53.3 cm torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14 – 18 men. This class of U-boat did not carry a deck gun.

Service history
On 8 May 1945, U-2365 was scuttled northwest of Anholt in the Kattegat as part of Operation Regenbogen. The wreck was originally located at 56.85°N, 11.81667°W.

Post war service
In June of 1956, U-2365 was raised by the German Federal Navy and commissioned U-Hai on 15 August 1957. On 14 September 1966, she floundered on Dogger Bank in the North Sea during a gale. Nineteen, of the crew of twenty, were lost, making this one of the worst peactime naval disasters in German history. She was raised on 19 September 1966 from 47 m of water and broken up.

Location of wreck before being raised, 55.25°N, 4.36667°W.