German submarine U-232

German submarine U-232 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

The submarine was laid down on 17 January 1942 at the Friedrich Krupp Germaniawerft yard at Kiel as yard number 662, launched on 15 October and commissioned on 28 November under the command of Kapitänleutnant Ernst Ziehm.

After training with the 5th U-boat Flotilla at Kiel, U-232 was transferred to the 9th U-boat Flotilla in Brest on 1 May 1943, for front-line service. In one war patrol, the U-boat sank or damaged no merchant ships. She was a member of three wolfpacks.

U-232 was sunk on 9 July 1943 in the North Atlantic by a British aircraft.

Design
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-232 had a displacement of 769 t when at the surface and 871 t while submerged. She had a total length of 67.10 m, a pressure hull length of 50.50 m, a beam of 6.20 m, a height of 9.60 m, and a draught of 4.74 m. The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2800 to 3200 PS for use while surfaced, two AEG GU 460/8–27 double-acting electric motors producing a total of 750 PS for use while submerged. She had two shafts and two 1.23 m propellers. The boat was capable of operating at depths of up to 230 m.

The submarine had a maximum surface speed of 17.7 kn and a maximum submerged speed of 7.6 kn. When submerged, the boat could operate for 80 nmi at 4 kn; when surfaced, she could travel 8500 nmi at 10 kn. U-232 was fitted with five 53.3 cm torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.

Patrol and loss
U-232's inaugural patrol took her from Kiel to the Atlantic Ocean via the gap between Iceland and the Faroe Islands. While heading for the Bay of Biscay, she was attacked and sunk by a British RAF Wellington on 9 July 1943. Forty-six men died; there were no survivors.

Wolfpacks
U-232 took part in three wolfpacks, namely:
 * Trutz (1 – 16 June 1943)
 * Trutz 2 (16 – 29 June 1943)
 * Geier 3 (30 June – 8 July 1943)