The German submarine U-387 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. She carried out ten patrols. She sank no ships. She was a member of eleven wolfpacks. She was sunk by in the Barents Sea on 9 December 1944.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-387 had a displacement of 769t when at the surface and 871t while submerged. She had a total length of 67.1m (220.1feet), a pressure hull length of 50.5m (165.7feet), a beam of 6.2m (20.3feet), a height of 9.6m (31.5feet), and a draught of 4.74m (15.55feet). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of NaNPS for use while surfaced, two Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750PS for use while submerged. She had two shafts and two 1.23abbr=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-387 was fitted with five 53.30NaN0 torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.82NaN2 SK C/35 naval gun, 220 rounds, and two twin 2sp=usNaNsp=us C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.
The submarine was laid down on 5 September 1941 at the Howaldtswerke yard at Kiel as yard number 18, launched on 1 October 1942 and commissioned on 24 November under the command of Kapitänleutnant Rudolf Büchler.
She served with the 5th U-boat Flotilla from 24 November 1942 and the 7th flotilla from 1 July 1943. She was reassigned to the 13th flotilla from 1 November until her loss.
U-387s first patrol was preceded by short trips from Kiel to Marviken, then to Bergen in June 1943. The boat's patrol proper commenced with her departure from Bergen on 3 July. She followed the Norwegian coast as far as Bodø and then headed due north as far as a point a few miles short of Svalbard. She then sailed south, passing to the west of Bear Island, docking in Narvik on 21 August. At 50 days, it was her longest patrol, but sighting the enemy did not happen.
The boat's second and third sorties were both divided into two parts. Her crew got to know the northern Norwegian, Greenland and Barents Seas particularly well.
The monotony of her fourth, fifth and sixth forays was not relieved by success.
By now based in Narvik, the submarine was carrying out her seventh patrol when she was attacked by a Norwegian-crewed Sunderland flying boat of No. 330 Squadron RAF. Enough damage was inflicted to oblige the U-boat to put into Trondheim for repairs.
U-387s eighth patrol was uneventful as was her ninth, which took her to the waters around the North Cape.
The boat left Narvik for the last time on 24 November 1944. On 9 December, she was sunk in the Barents Sea near Murmansk by depth charges dropped by the British corvette .
Fifty-one men died in the U-boat; there were no survivors.
U-387 took part in eleven wolfpacks, namely: