German submarine U-3035

German submarine U-3035 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 11 November 1944 at AG Weser, Bremen as yard number 1194. She was launched on 24 January 1945, and commissioned under the command of Oberleutnant zur See Ernst-August Gerke on 1 March 1945.

Design
Like all Type XXI U-boats, U-3035 had a displacement of 1621 t when at the surface and 1819 t while submerged. She had a total length of 76.70 m (o/a), a beam of 8 m, and a draught of 6.32 m. The submarine was powered by two MAN SE supercharged six-cylinder M6V40/46KBB diesel engines each providing 4000 PS, two Siemens-Schuckert GU365/30 double-acting electric motors each providing 5000 PS, and two Siemens-Schuckert silent running GV232/28 electric motors each providing 226 PS.

The submarine had a maximum surface speed of 15.6 kn and a submerged speed of 17.2 kn. When running on silent motors the boat could operate at a speed of 6.1 kn. When submerged, the boat could operate at 5 kn for 340 nmi; when surfaced, she could travel 15500 nmi at 10 kn. U-3035 was fitted with six 53.3 cm torpedo tubes in the bow and four 2 cm 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.

Service history
On 9 May 1945, U-3035 surrendered at Stavanger, Norway. She was later transferred to Scapa Flow, Scotland on 31 May 1945, arriving on 2 June 1945, then to Lisahally, Northern Ireland on 2 June 1945, arriving on 4 June 1945.

Post war service
The Tripartite Naval Commission allocated U-3035 to the Soviet Union. On 14 December 1945, she arrived in Libau, Latvia, as British N-class N28. On 13 February 1946, the Soviet Navy allocated her to the Baltic Fleet. She was renamed B-28 on 9 June 1949 then sent to the reserve fleet on 29 December 1955. B-28 was redesignated on 18 January 1956, as a floating submarine battery recharging station PZS-34. She was finally struck from the Soviet Navy on 25 March 1958, and broken up for scrap.