German submarine U-828

German submarine U-828 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine during the Second World War. She saw no combat and was scuttled at the end of the war.

U-828 was ordered on 8 June 1942 and laid down on 16 August 1943 at Schichau-Werke, Danzig, West Prussia. She was launched on 16 March 1944 and commissioned on 17 June with Oberleutnant zur See Alfred John in command. John remained in command for the remainder of the war. The U-boat saw no action and was scuttled on 5 May 1945 west of Wesermünde, near Bremerhaven in position 53.53333°N, 8.58333°W.

Design
Like all Type VIIC/41 U-boats, U-828 had a displacement of 759 t when at the surface and 860 t while submerged. She had a total length of 67.10 m, a pressure hull length of 50.50 m, a beam of 6.20 m, and a draught of 4.74 m. The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke diesel engines producing a total of 2800 to 3200 PS and two BBC GG UB 720/8 double-acting electric motors producing a total of 750 PS for use while submerged. The boat was capable of operating at a depth of 250 m.

The submarine had a maximum surface speed of 17.7 kn and a submerged speed of 7.6 kn. When submerged, the boat could operate for 80 nmi at 4 kn; when surfaced, she could travel 8500 nmi at 10 kn. U-828 was fitted with five 53.3 cm torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm SK C/35 naval gun, (220 rounds), one 3.7 cm Flak M42 and two 2 cm C/30 anti-aircraft guns. Her complement was between forty-four and sixty.