German submarine U-487
German submarine "U-487" was a Type XIV supply and replenishment U-boat (""Milchkuh"") of Nazi Germany's "Kriegsmarine" during World War II. Her keel was laid down 31 December 1941 by Germaniawerft in Kiel as yard number 556. She was launched on 17 October 1942 and commissioned on 21 December 1942 with "Oberleutnant zur See" Helmut Metz in command. Metz commanded the boat for its entire career. Her service began with training as part of the 4th U-boat Flotilla. She then joined the 12th flotilla for operations. Design. German Type XIV submarines were shortened versions of  the Type IXDs they were based on. "U-487" 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 Germaniawerft supercharged four-stroke, six-cylinder diesel engines producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/38-8 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-487" was not fitted with torpedo tubes or deck guns, but had two SK C/30 anti-aircraft guns with 2500 rounds as well as a C/30 guns with 3000 rounds. The boat had a complement of fifty-three. Operational career. "U-487" conducted two patrols. As a supply boat, she avoided combat. First patrol. The U-boat departed Kiel on 27 March 1943, heading for the mid-Atlantic. She arrived in Bordeaux , in occupied France on 12 May. Second patrol and loss. Her second patrol saw her leave Bordeaux on 15 June 1943. On 13 July, "U-487" was attacked in the central Atlantic by five United States Navy Grumman TBF Avengers and Grumman F4F Wildcats from the escort carrier . The U-boat's crew were taken by surprise, so much so that sunbathers were seen on the casing. One Wildcat was shot down, but 31 men were killed and the U-boat sunk. The 33 survivors were taken prisoner on board .