German submarine U-184

German submarine U-184 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during World War II.

She was ordered	on 15 August 1940 and was laid down on 10 June 1941 at DeSchiMAG AG Weser, Bremen, becoming yard number 1024. She was launched on 21 February 1942 and commissioned under her first and only commander Kapitänleutnant Günther Dangschat on 29 May. After a period of training with the 4th U-boat Flotilla, she joined the 2nd U-boat Flotilla for operational service on 1 November 1942.

Design
German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-184 had a displacement of 1144 t when at the surface and 1257 t while submerged. The U-boat had a total length of 76.76 m, a pressure hull length of 58.75 m, a beam of 6.86 m, a height of 9.60 m, and a draught of 4.67 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 1.92 m propellers. The boat was capable of operating at depths of up to 230 m.

The submarine had a maximum surface speed of 18.3 kn and a maximum submerged speed of 7.3 kn. When submerged, the boat could operate for 63 nmi at 4 kn; when surfaced, she could travel 13850 nmi at 10 kn. U-184 was fitted with six 53.3 cm torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one 10.5 cm SK C/32 naval gun, 180 rounds, and a 3.7 cm SK C/30 as well as a 2 cm C/30 anti-aircraft gun. The boat had a complement of forty-eight.

Service history
On her first and only combat patrol she departed Bergen in Norway on 9 November 1942 and entered the north Atlantic via the gap between Iceland and the Faroe Islands. She sank a single ship, the British merchant vessel Widestone about 500 nmi southeast of Cape Farewell (Greenland) on 17 November 1942. There were no survivors.

On 21 November she was listed as missing with all 50 hands east of Newfoundland, in approximate position 49°N, -45°W.

U-184's loss remains an unsolved mystery. It is possible that she was sunk by a Canadian plane or warship as a result of the Battle of the St. Lawrence.

Previously recorded fate
U-184 was thought to have been sunk by depth charges from the Norwegian corvette HNOMS Potentilla, but in a post-war assessment this attack was later found to have been against GS U-264, and had inflicted only minor damage.