German submarine U-440

German submarine U-440 was a [German German Type VIIC submarine|Type VIIC submarine|Type VIIC] U-boat built for Nazi Germany's Kriegsmarine for service during World War II.
She was laid down on 1 October 1940 by Schichau-Werke, Danzig as yard number 1491, launched on 8 November 1941 and commissioned on 24 January 1942 under Oberleutnant zur See Hans Geissler. On 20 May 1943, Geissler was replaced as commander by Oberleutnant zur See Werner Schwaff.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-440 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 AEG GU 460/8-276 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-440 was fitted with five torpedo tubes, 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.

The boat's career began with training at 5th U-boat Flotilla on 24 January 1942, followed by active service on 1 September 1942 as part of the 1st Flotilla for the remainder of her service. On five patrols she sank no ships.

U-440 took part in seven wolfpacks, namely:

U-440 was sunk on 31 May 1943 in the North Atlantic in position, by depth charges from RAF Sunderland from 201 Squadron. All crew members died.