German submarine U-370

German submarine U-370 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II.

She carried out twelve patrols before being scuttled in northern Germany in May 1945.

She sank two warships.

Service history
The submarine was laid down on 25 August 1942 at the Flensburger Schiffsbau yard at Flensburg as 'werk' 493, launched on 28 July 1942 and commissioned on 12 November under the command of Oberleutnant Karl Nielsen.

She served with the 4th U-boat Flotilla from 19 November 1943, the 8th flotilla from 1 August 1944 and was back with the 4th flotilla on 16 February 1945.

U-370 spent her entire career in the relatively confined waters of the Baltic Sea and the Gulf of Finland.

1st-5th patrols
The boat's first patrol was preceded by trips from Kiel to Marviken and then back to Kiel, from where she departed on 9 July 1944. She sailed through the Baltic and into the Gulf of Finland, arriving at Reval, (now Tallinn in Estonia), on 12 July.

She spent the rest of her career in the Ostsee, sinking the Soviet Patrol boat MO-101 in Björkö Sound on 31 July 1944 during her fifth patrol.

6th-12th patrols
During her ninth sortie Matrosengefreiter Erwin Stiegeler was swept overboard in the Baltic on 23 September 1944.

It was while on her eleventh foray that she sank the Finnish minelayer Louhi (12 January 1945).

Fate
U-370 was scuttled in Gelting Bay (east of Flensburg) on 5 May 1945. The wreck was broken up in 1948.