were slightly larger than the original Type IXBs. U-67 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-67 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
The boat carried out seven patrols in which she sank 13 ships for a total of 72318 tons and damaged another five for a total of 31152 tons. She was a member of three wolfpacks. She was sunk on 16 July 1943 by an Avenger bomber from the US aircraft carrier. 48 men died, there were three survivors. Her operational service commenced with a trip from Bergen in Norway to Lorient in France. The submarine was to spend the rest of her career being based in the French port.
Her fourth patrol, as part of Operation Drumbeat, saw the submarine enter the Gulf of Mexico. There she sank eight ships, most of them just off the mouth of the Mississippi River. Her fifth sortie turned out to be her longest - 97 days. Moving to the area off the north coast of South America, she sank a further six ships, but her success was marred by an explosion while handling torpedoes. One man was killed. Patrol number six included being part of wolfpackSeeräuber which was unfortunate as the boat was badly damaged in an attack on the convoy RS 3. Three U-boats were hit in the battle, which took place south of the Canary Islands. The submarine began her seventh and final patrol on 10 May 1943. On 16 July, U-67 was spotted by a Grumman TBF Avenger, piloted by Lt. Robert Pershing Williams of VC-13 embarked in, who attacked with four Mk 47 Torpexdepth charges, sinking the boat. An escort,, was dispatched to the scene and picked up three survivors out of a crew of 51 in position.