German submarine U-1232 was a Type IX U-boat of Nazi Germany's Kriegsmarine during World War II.
German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-1232 had a displacement of 1144t when at the surface and 1257t while submerged. The U-boat had a total length of 76.76m (251.84feet), a pressure hull length of 58.75m (192.75feet), a beam of 6.86m (22.51feet), a height of 9.6m (31.5feet), and a draught of 4.67m (15.32feet). The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of 4400PS for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1000shp for use while submerged. She had two shafts and two 1.92abbr=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-1232 was fitted with six 53.30NaN0 torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one 10.52NaN2 SK C/32 naval gun, 180 rounds, and a 3.7cm (01.5inches) Flak M42 as well as two twin 2sp=usNaNsp=us C/30 anti-aircraft guns. The boat had a complement of forty-eight.
She made one offensive patrol, from November 1944 until February 1945, to North America. On 14 January 1945, the boat torpedoed and sank three ships within 13 minutes near Halifax Harbour off the Atlantic coast of Canada.[1] [2] During this action she was damaged so severely that she was forced to return to base.
In May 1945 the British military captured U-1232 at Wesermünde, Germany. On 4 March 1946 the boat sank at 54.1833°N 31°W after she foundered whilst being towed to the scuttling grounds.[3]
| Date | Ship Name | Nationality | Tonnage (GRT) | Fate[4] | |
|---|---|---|---|---|---|
| 4 January 1945 | Nipiwan Park |  Canada | 2,373 | Damaged | |
| 4 January 1945 | Polarland |  Norway | 1,591 | Sunk | |
| 14 January 1945 | Athelviking |  United Kingdom | 8,779 | Sunk | |
| 14 January 1945 | British Freedom | United Kingdom | 6,985 | Sunk | |
| 14 January 1945 | Martin Van Buren |  United States | 7,176 | Total loss |