This from the Szczecin Oderwerke built motor vessel was on 17 March 1926 by the stack . It was considered the sister ship of the Hanseatic city of Danzig, which was launched on the same day . 120 double cabins (3rd class) were available to passengers for the night journey. The propulsion of the ship consisted of two four-stroke crosshead diesel engines made by MAN , which developed 3,400 hp (2,500 kW) at 270 rpm without supercharging and 6,400 hp (4,700 kW) at 320 rpm with supercharging . The Hanseatic City of Danzig and the Prussians were the first ships to be charged with exhaust gas turbochargers . In 1934 the ship was lengthened by about 8 meters.
In September 1939 the Prussia was captured by the navy and converted into a mine ship. Among other things, she took part on 29./30. April 1940 participated in a mine operation in the Skagerrak . There she collided with the German torpedo boat Leopard , which sank in the early morning hours of April 30th.
In July 1941, the Prussia was involved with other ships in laying the mine barrier "Wartburg I – III" in the Baltic Sea . On July 9, 1941, the ship came east of the southern tip of Öland on a mine barrier in Sweden . After the front bulkhead was broken by a mine hit in the auxiliary engine room, the crew sank their ship by blowing up.
Claus Rothe: Deutsche Seebäderschiffe, 1830 to 1939 (= library of ship types ). transpress publishing house for transport, Berlin 1989, ISBN 3-344-00393-3 , pp. 133-134.