German submarine U-2521

German submarine U-2521 was a Type XXI U-boat of Nazi Germany's Kriegsmarine, built for service in World War II. She was ordered on 6 November 1943, and was laid down on 31 August 1944 at the Blohm & Voss yard at Hamburg, as yard number 2521. She was launched on 18 October 1944, and commissioned under the command of Oberleutnant zur See Joachim Methner on 21 November 1944.

Design

Like all Type XXI U-boats, U-2521 had a displacement of when at the surface and while submerged. She had a total length of, a beam of, and a draught of. The submarine was powered by two MAN SE supercharged six-cylinder M6V40/46KBB diesel engines each providing, two Siemens-Schuckert GU365/30 double-acting electric motors each providing, and two Siemens-Schuckert silent running GV232/28 electric motors each providing.
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-2521 was fitted with six torpedo tubes in the bow and four 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-2521 was sunk on 3 May 1945, by rockets, in the Flensburg Fjord. U-2521 was attacked by a British Hawker Typhoon of 184 Squadron. Forty-four of the crew died in the attack with an unknown number of survivors.
The wreck is located at.