Mirna-class patrol boat

	Šolta (OB-02) photographed in the Lora Naval Base, August 2011
Class overview
Builders	Tito's Shipyard Kraljevica, Kraljevica, SR Croatia
Operators	Yugoslav Navy; FR Yugoslav Navy; Croatian Navy;
Preceded by	Type 131
Succeeded by	Omiš class
Completed	11
Active	4
General characteristics
Type	Patrol boat
Displacement	Standard: 125 t (123 long tons); Full load: 142 t (140 long tons);
Length	33.4 m (109 ft 7 in)
Beam	6.74 m (22 ft 1 in)
Draught	2.3 m (7 ft 7 in)
Propulsion	Two shafts; fixed pitch propellers; 2 × SEMT Pielstick diesel engines;
Speed	32 knots (59 km/h); 24 knots (44 km/h) (economical);
Range	600 nm at 15 knots
Complement	~ 20
Armament	1 × Bofors 40 mm (1.6 in) gun; 1 × Hispano M-75 four-barreled 20 mm (0.79 in) gun; 1 × MTU-4 9K32M Strela-2M; 2 × double-barreled 128 mm (5.0 in) illuminator launchers;

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 boats, the new class was completed during the early 1980s and commissioned in the JRM Maritime Border Brigade.