German submarine U-883

German submarine U-883 was a Type IXD/42 U-boat of Nazi Germany's Kriegsmarine in World War II.

Designed in 1942, U-883 was the only commissioned Type IXD/42 submarine, similar to the Type IXD submarine, but with increased engine power (increased from 4400 to 5400 ehp).

Commissioned on 27 March 1945, only weeks before the German capitulation, U-883 was surrendered at Cuxhaven on 5 May 1945. She was sunk on 31 December 1945 as part of Operation Deadlight.

Design
German Type IXD42 submarines were considerably larger than the original Type IXs. U-883 had a displacement of 1616 t when at the surface and 1804 t while submerged. The U-boat had a total length of 87.58 m, a pressure hull length of 68.50 m, a beam of 7.50 m, a height of 10.20 m, and a draught of 5.35 m. The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of 4400 PS for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1000 shp for use while submerged. She had two shafts and two 1.85 m propellers. The boat was capable of operating at depths of up to 200 m.

The submarine had a maximum surface speed of 19.2 kn and a maximum submerged speed of 6.9 kn. When submerged, the boat could operate for 121 nmi at 2 kn; when surfaced, she could travel 31500 nmi at 10 kn. U-883 was fitted with six 53.3 cm torpedo tubes (four fitted at the bow and two at the stern), 24 torpedoes, one 10.5 cm SK C/32 naval gun, 150 rounds, and a 3.7 cm Flak M42 with 2575 rounds as well as two twin 2 cm C/30 anti-aircraft guns with 8100 rounds. The boat had a complement of fifty-five.