In 1970 the Finnish shipping company Oy Siljavarustamo - Siljarederiet Ab ordered two new carferries for Helsinki–Stockholm service from the French Dubegion-Normandie S.A. shipyard.

On 7 August 1973 the Aallotar was chartered for a special cruise around the Porkkala archipelago for the Conference on Security and Co-operation in Europe.

She proved unprofitable on this freight-oriented line, and in August 1976 the Aallotar was laid up, waiting for a potential buyer.

No buyer was found and between June and August 1977 the Aallotar was back in active service, sailing between Turku and Stockholm.

After this she was again laid up, but only for a short while as in October 1977 she was chartered to Polferries, who set her on traffic between Helsinki and Gdańsk, Poland, without a change of name.

On 14 May 1978 Polferries bought the Aallotar from FÅA and renamed her MS Rogalin after a renowned village in Greater Poland.