|Ordered:||21 November 1940|
|Laid down:||6 December 1941|
|Launched:||23 January 1943|
|Commissioned:||13 March 1943|
|Fate:||Sunk by British warships in the Baie de la Seine in the English Channel, July 1944|
|Class and type:||Type VIIC submarine|
|Height:||9.60 m (31 ft 6 in)|
|Draught:||4.74 m (15 ft 7 in)|
|Complement:||4 officers, 40–56 enlisted|
She carried out three patrols before being sunk by British warships in July 1944 in the English Channel.
She was a member of four wolfpacks.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-390 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-390 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.
The submarine was laid down on 6 December 1941 at the Howaldtswerke yard at Kiel as yard number 21, launched on 23 January 1943 and commissioned on 13 March under the command of Oberleutnant zur See Heinz Geissler.
The boat's first patrol was divided into two parts; the first part was brief. It started in Kiel and terminated in Bergen. Part two began in Bergen on 7 December 1942 and took in the gap between Iceland and the Faroe Islands. The submarine then docked at St. Nazaire in occupied France on 13 February 1944.
U-390's second foray was relatively uneventful; starting from St. Nazaire but finishing further north, at Brest.
3rd patrol and loss
The U-boat's third and final sortie began three weeks after the Normandy landings. She attacked and sank the British anti-submarine trawler HMS Ganilly. She also damaged the Sea Porpoise about 10 nautical miles (19 km; 12 mi) off Utah beach; both on 5 July 1944. On the same day, she was sunk by depth charges dropped by two other British ships: the destroyer HMS Wanderer and the frigate HMS Tavy.
Forty-eight men died in U-390; there was one survivor.
U-390 took part in four wolfpacks, namely.
- Coronel 2 (15–17 December 1943)
- Rügen 3 (23 December 1943 - 7 January 1944)
- Rügen (7–26 January 1944)
- Stürmer (26 January - 3 February 1944)
Summary of raiding history
|5 July 1944||HMT Ganilly||Royal Navy||545||Sunk|
|5 July 1944||Sea Porpoise||United States||7,934||Damaged|
- Kemp 1999, p. 201.
- Helgason, Guðmundur. "The Type VIIC boat U-390". German U-boats of WWII - uboat.net. Retrieved 8 September 2012.
- Helgason, Guðmundur. "War Patrols by German U-boat U-390". German U-boats of WWII - uboat.net. Retrieved 8 September 2012.
- Gröner 1991, pp. 43-46.
- Helgason, Guðmundur. "Ships hit by U-390". German U-boats of WWII - uboat.net. Retrieved 13 October 2013.
- Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
- Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Kemp, Paul (1999). U-Boats Destroyed - German Submarine Losses in the World Wars. London: Arms & Armour. ISBN 1-85409-515-3.
- Helgason, Guðmundur. "The Type VIIC boat U-390". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.