Rechinul took part in the evacuation of the Crimea and later performed the longest mission in Romanian submarine history, starting on 15 June 1944 and lasting 45 days.

Rechinul was a minelaying submarine, designed by Ingenieurskantoor voor Scheepsbouw (IvS), and built at the Galați shipyard in Romania.

The information on Soviet naval movements she transmitted during her mission proved to be very useful to the German and Romanian ships which were carrying out the evacuation of Sevastopol.

She was heavily pursued and hunted by Soviet forces, but just like her sister, she managed to return to Constanța without any losses.

[2][4] Rechinul was, just like Marsuinul, captured by Soviet forces after the 23 August 1944 coup, and commissioned as TS-1 on 20 October 1944.