German submarine U-983 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
She was ordered on 25 May 1941, and was laid down on 7 September 1942 at Blohm & Voss, Hamburg, as yard number 183. She was launched on 12 May 1943 and commissioned under the command of Leutnant zur See Hans Reimers on 16 June 1943.[1]
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-983 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-983 was fitted with five 53.30NaN0 torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA mines, one 8.82NaN2 SK C/35 naval gun, 220 rounds, and one twin 2sp=usNaNsp=us C/30 anti-aircraft gun. The boat had a complement of between 44 — 52 men.
On 8 September 1943, U-983 sank north of Łeba in the Baltic Sea after colliding with . Thirty-eight of the crew of forty-three survived, rescued on 9 September by U-854 which was in the area for training, and brought to Hel.
The wreck was located at 54.9333°N 31°W.