Hermann was a Kriegsmarine weather ship that was built in 1929 as the fishing trawler J. F. Schröder.

She was renamed Hermann in 1942, serving until scuttled off the coast of Greenland in June 1943.

[2] Her port of registry was Cuxhaven and the Code Letters RHJP,[1] and fishing registration HC 214 were allocated.

On 10 October 1941, Sachsen sailed from Tromsø, Norway with WBS 4 Fritz Homann for Jan Mayen, where an automatic weather station was to be established.

In the spring of 1943, the Germans were discovered by the Slædepatruljen Sirius, but they later managed to capture its leader, and ordered him to help them find a new site for a weather station.