German submarine U-435 was a 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 (Knight's Cross).
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.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-435 had a displacement of 769t when at the surface and 871t while submerged. She had a total length of 67.1m (220.1feet), a pressure hull length of 50.5m (165.7feet), a beam of 6.2m (20.3feet), a height of 9.6m (31.5feet), and a draught of 4.74m (15.55feet). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of NaNPS for use while surfaced, two AEG GU 460/8–27 double-acting electric motors producing a total of 750PS for use while submerged. She had two shafts and two 1.23abbr=onNaNabbr=on 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 53.30NaN0 torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.82NaN2 SK C/35 naval gun, 220 rounds, and a 2sp=usNaNsp=us C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.
In eight patrols she sank nine merchant ships, plus three warships and one auxiliary warship for a total of and 855 tons.
She took part in eleven wolfpacks, namely:
She was depth charged and sunk on 9 July 1943 at position 39.8°N -36°W west of Figueira, Portugal by a RAF Wellington bomber from 179 Squadron.
| Date | Ship Name | Nationality | Tonnage[1] | Fate[2] | |
|---|---|---|---|---|---|
| 30 March 1942 | Effingham |  United States | 6,421 | Sunk | |
| 13 April 1942 |  Panama | 6,008 | Sunk | ||
| 13 April 1942 | Harpalion |  United Kingdom | 5,486 | Sunk | |
| 20 September 1942 | HMS Leda | 835 | Sunk | ||
| 22 September 1942 | Bellingham | United Kingdom | 5,345 | Sunk | |
| 22 September 1942 | RFA Grey Ranger | Royal Fleet Auxiliary | 3,313 | Sunk | |
| 22 September 1942 | Ocean Voice | United Kingdom | 7,174 | Sunk | |
| 29 December 1942 | Empire Shackleton | United Kingdom | 7,068 | Sunk | |
| 29 December 1942 | Norse King |  Norway | 5,701 | Sunk | |
| 30 December 1942 | 2,456 | Sunk | |||
| 30 December 1942 | HMS LCV-752 | 10[3] | Sunk | ||
| 30 December 1942 | HMS LCV-754 | 10 | Sunk | ||
| 17 March 1943 | William Eustis | United States | 7,196 | Sunk |