German submarine U-1107 was a Type VIIC/41 U-boat built for Nazi Germany's Kriegsmarine for service during World War II.She was laid down on 20 August 1943 by Nordseewerke, Emden as yard number 229, launched on 30 June 1944 and commissioned on 8 August 1944 under Oberleutnant zur See Fritz Parduhn.
Like all Type VIIC/41 U-boats, U-1107 had a displacement of 759t when at the surface and 860t while submerged. She had a total length of 67.23m (220.57feet), a pressure hull length of 50.5m (165.7feet), a beam of 6.2m (20.3feet), and a draught of 4.74m (15.55feet). The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke diesel engines producing a total of NaNPS and two SSW GU 343/38-8 double-acting electric motors producing a total of 750PS for use while submerged. The boat was capable of operating at a depth of .
The submarine had a maximum surface speed of and a submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . U-1107 was fitted with five 53.30NaN0 torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA or TMB Naval mines, one 8.82NaN2 SK C/35 naval gun, (220 rounds), one 3.7cm (01.5inches) Flak M42 and two 2sp=usNaNsp=us C/30 anti-aircraft guns. Its complement was between forty-four and sixty.
The boat's career began with training at 8th U-boat Flotilla on 8 August 1944, followed by active service on 16 February 1945 as part of the 11th Flotilla for the remainder of her service. In one patrol she sank two merchant ships, for a total of .
Sources agree that U-1107 was sunk on 30 April 1945 in the Bay of Biscay west of Brest, but differ as to the exact location of the sinking and the immediate cause: according to one source, U-1107 was sunk at position 48.2°N -47°W by a homing torpedo from a US Navy Liberator of VP-103 with all hands lost, whereas another source reports U-1107 being sunk at position 48°N -36°W by one or more out of 24 bombs dropped by USN Catalina 'R' of VPB-63, flown by Lt. F.G. Lake, on a MAD Rover patrol with 37 submarine crew killed and an unknown number surviving.[1]
| Date | Ship Name | Nationality | Tonnage (GRT) | Fate[2] | |
|---|---|---|---|---|---|
| 18 April 1945 | Cyrus H. McCormick |  United States | 7,181 | Sunk | |
| 18 April 1945 | Empire Gold |  United Kingdom | 8,028 | Sunk |