German submarine U-433

German submarine U-433 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 4 January 1940 by Schichau-Werke, Danzig as yard number 1474, launched on 15 March 1941 and commissioned on 24 May 1941 under Oberleutnant zur See Hans Ey.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-433 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-433 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 3rd U-boat Flotilla on 24 May 1941, and continuing with active service on 1 August 1941 as part of the 3rd Flotilla for the remainder of her service.
In two patrols she damaged one merchant ship, for a total of.

U-433 took part in two wolfpacks, namely:

U-433 was sunk on 16 November 1941 in the Mediterranean Sea east of Gibraltar, in position, by depth charges and gunfire from the Royal Navy corvette. There were 6 dead and 38 survivors.