German submarine U-435
German submarine U-435 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 11 April 1940 by F Schichau GmbH in Danzig as yard number 1477, launched on 31 May 1941 and commissioned on 30 August 1941 under Korvettenkapitän Siegfried Strelow.
The boat's service began on 30 August 1941 with training as part of the 5th U-boat Flotilla. She was transferred to the 1st flotilla on 1 January 1942 for active service and then to the 11th flotilla on 1 July 1942. She returned to the 1st flotilla on 1 February 1943.
Design
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-435 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 460/8–27 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-435 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.
Service history
In eight patrols she sank nine merchant ships, plus three warships and one auxiliary warship for a total of and 855 tons.;Convoy PQ 13
attacked and damaged the American freighter Effingham straggling the convoy. U-435 then finished off the abandoned vessel.
;Convoy QP 10
U-435 was more successful in April sinking both the Panamanian freighter El Occidente and British steamer Harpalion. The straggler Harpalion was finished off after being abandoned having been previously heavily damaged by Luftwaffe Ju 88 dive bombers.
;Convoy QP 14
U-435 had even more success when she was part of a combined attack on Arctic Convoy QP 14. She sank 4 vessels, comprising the minesweeper, RFA fleet oiler Gray Ranger, British Liberty ship Ocean Voice and American freighter Bellingham.
;Convoy ONS 154
U-435 continued her earlier successes sinking 3 vessels from ONS 154, the CAM ship Empire Shackleton, the freighter Norse King, the special service vessel : She was also credited with two landing craft carried on Fidelity when she was sunk.