Mirna-class patrol boat

The Mirna class (referred to as the Type 171 in some sources) is a class of eleven patrol boats built for the Yugoslav Navy (Serbo-Croatian: Jugoslavenska ratna mornarica - JRM) by the Tito's Kraljevica Shipyard. Intended as a replacement for the earlier Type 131 patrol boats, the new class was completed during the early 1980s and commissioned in the JRM Maritime Border Brigade.