Mironave was a 1,125 GRT cargo ship that was built as a passenger ship in 1938 by Schiffbau-Gesellschaft Unterweser AG, Wesermünde, Germany for German owners. In 1940, she was requisitioned by the Kriegsmarine. Seized by the Allies in 1945, she was passed to the Ministry of War Transport (MoWT) and renamed Empire Concave. In 1946, she was passed to the Norwegian Government and renamed Galtnes. She was sold into merchant service in 1947 and renamed Ila. In 1952, she was sold to Brazil and was renamed São Leopoldo. In 1965, a further sale saw her renamed Mironave. She was still in active service in 1982, when a further sale took place.