It is the Jerzy Rozyck, named after the Polish mathematician who helped crack the German encryption code during World War II.
The Polish Navy has ordered two such vessels from the Swedish Saab at a cost of 620 million euros.
They are 74 meters long and have a crew of 40.
They have systems for detecting, recognizing, and tracking submarines, ships, mines, and unmanned aerial vehicles (USVs).
[Source: http://www.onalert.gr]
