German submarine U-928

German submarine U-928 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
She was ordered on 25 August 1941, and was laid down on 5 January 1943 at Neptun Werft AG, Rostock, as yard number 515. She was launched on 15 April 1944 and commissioned under the command of Oberleutnant zur See Hellmut Stähler on 11 July 1944.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-928 had a displacement of when at the surface and while submerged. She had a total length of, a pressure hull length of, a beam of, a height of, and a draught of. The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of for use while surfaced, two SSW GU 343/38-8 double-acting electric motors producing a total of for use while submerged. She had two shafts and two propellers. The boat was capable of operating at depths of up to.
The submarine had a maximum surface speed of and a maximum submerged speed of. When submerged, the boat could operate for at ; when surfaced, she could travel at. U-928 was fitted with five torpedo tubes, fourteen torpedoes or 26 TMA mines, one SK C/35 naval gun,, one Flak M42 and two twin C/30 anti-aircraft guns. The boat had a complement of between 44 — 52 men.

After surrendering at Bergen, Norway, on 9 May 1945, U-928 was transferred to Lisahally, Northern Ireland on 30 May 1945. It was one of the 116 U-boats selected for Operation Deadlight. The submarine was towed out and sunk on 16 December 1945.
The wreck is located at.