German submarine U-224 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
Ordered on 15 August 1940 from the Germaniawerft shipyard in Kiel, she was laid down on 15 July 1941 as yard number 654, launched on 7 May 1942 and commissioned on 20 June.
U-224 was attacked with depth charges and rammed by Canadian corvette west of Algiers on 13 January 1943. 45 crew members died when the boat sank.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-224 had a displacement of 769t when at the surface and 871t while submerged. She had a total length of 220feet, a pressure hull length of 165feet, a beam of 20feet, a height of 31feet, and a draught of 15feet. The submarine was powered by two Germaniawerft F 46 four-stroke, six-cylinder supercharged diesel engines producing a total of NaNPS for use while surfaced, two AEG double-acting electric motors producing a total of 750PS for use while submerged. She had two shafts and two 1.23m (04.04feet) 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-224 was fitted with five 21inches torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8cm (03.5inches) deck machine gun, 220 rounds, and a 2sp=usNaNsp=us C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.
U-224 took part in three wolfpacks, namely:
| Date | Ship Name | Nationality | Tonnage (GRT) | Fate[1] | |
|---|---|---|---|---|---|
| 29 October 1942 | Bic Island |  Canada | 3,921 | Sunk | |
| 12 November 1942 | Buchanan |  Panama | 5,614 | Sunk |