German submarine U-2523 was a Type XXI U-boat (one of the "Elektroboote") of Nazi Germany's Kriegsmarine, built for service in World War II. She was ordered on 6 November 1943, and was laid down on 6 September 1944 at Blohm & Voss, Hamburg, as yard number 2523. She was launched on 25 October 1944, and commissioned under the command of Kapitänleutnant Hans-Heinrich Ketels on 26 December 1944.[1]
Like all Type XXI U-boats, U-2523 had a displacement of 1621t when at the surface and 1819t while submerged. She had a total length of 76.7m (251.6feet) (o/a), a beam of 8m (26feet), and a draught of 6.32m (20.73feet). The submarine was powered by two MAN SE supercharged six-cylinder M6V40/46KBB diesel engines each providing 4000lk=onNaNlk=on, two Siemens-Schuckert GU365/30 double-acting electric motors each providing 5000PS, and two Siemens-Schuckert silent running GV232/28 electric motors each providing 226PS.
The submarine had a maximum surface speed of and a submerged speed of . When running on silent motors the boat could operate at a speed of . When submerged, the boat could operate at for ; when surfaced, she could travel at . U-2523 was fitted with six 53.3cm (21inches) torpedo tubes in the bow and four 2sp=usNaNsp=us C/30 anti-aircraft guns. She could carry twenty-three torpedoes or seventeen torpedoes and twelve mines. The complement was five officers and fifty-two men.
U-2523 was sunk on 17 January 1945, by bombs, in the Blohm & Voss shipyard in Hamburg, at position 4. The wreck was later broken up.