were slightly larger than the original Type IXBs. U-514 had a displacement of when at the surface and while submerged. The U-boat 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 MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/34 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-514 was fitted with six torpedo tubes, 22 torpedoes, one SK C/32 naval gun, 180 rounds, and a SK C/30 as well as a C/30 anti-aircraft gun. The boat had a complement of forty-eight.
Service history
1st patrol
U-514s operational career began with a short journey from Kiel in Germany to Kristiansand in Norway over 12 and 13 August 1942. She then almost immediately headed west into the Atlantic via the gap between Iceland and the Faeroe Islands. Her first victim was the British sailing schooner Helen Forsey in mid-ocean. Following this success, she moved toward the northern coast of South America, where she attacked five ships. One of them was the Canadian merchant vessel on 11 September 1942 off Barbados, firing six torpedoes into Carlisle Bay. These either missed or impacted on the harbor's anti-torpedo netting. After returning fire with her four-inch gun, Cornwallis sustained a strike from one torpedo that had passed through one of at least four damaged portions of the netting around 4:30 PM. The ship was beached, lest she sink in the harbor, repaired and subsequently returned to service. The boat returned to occupied France, docking in Lorient on 9 November after sinking over 17,000 tons of shipping in 87 days at sea.
2nd patrol
Her second foray between 9 December 1942 and 12 February 1943, although at 66 days not as long as her first, still accounted for 15,270 tons of shipping.
3rd patrol
On her third patrol, the outbound boat was attacked twice in the same day, 17 April 1943. The first was by a Wellington of 172 Squadron RAF; the second was by a Whitley of 10 Squadron. Both attacks were unsuccessful, as was U-514s patrol.
4th patrol
The German submarine departed Lorient on 1 July 1943 but was sunk on the 8th northwest of Cape Finisterre, Spain by rockets fitted to a British B-24 Liberator of 224 Squadron in the Bay of Biscay among a group of Spanish fishing boats. This modification, although effective in this case, was not adopted for use by such an aircraft as the Liberator.
