German submarine U-611 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 22 April 1941 by Blohm & Voss, Hamburg as yard number 587, launched on 8 January 1942 and commissioned on 26 February 1942 under Kapitänleutnant Nikolaus von Jacobs.
Design German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-611 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 BBC GG UB 720/8 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-611 was fitted with five torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one SK C/35 naval gun, 220 rounds, and a C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.
Service history The boat's career began with training at 5th U-boat Flotilla on 26 February 1942, followed by active service on 1 October 1942 as part of the 3rd Flotilla for the remainder of her service. In one patrol she sank no ships.
Wolfpacks U-611 took part in three wolfpacks, namely: Kreuzotter (17 – 22 November 1942) Drachen (22 November – 3 December 1942) Panzer (3 – 8 December 1942)
Fate U-611 was sunk on 8 December 1942 in the North Atlantic SE of Cape Farewell, Greenland, in position , by depth charges from an RAF Liberator bomber of 120 Squadron. All hands were lost.
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