Mirna-class patrol boat

A Croatian Navy Mirna (OB-02 Šolta) in the Lora naval base, August 2011
Class overview
Builders:	Tito's Shipyard Kraljevica, Kraljevica, SR Croatia
Preceded by:	Type 131
General characteristics
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[1]
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

Mirna-class patrol boat (also known as Type 171) is a class of eleven patrol vessels built for the Yugoslav Navy in the Kraljevica Shipyard from 1979 to 1985. During the Croatian War of Independence and the dissolution of SFR Yugoslavia, most of the vessels were relocated to Montenegro except for four boats that were captured or damaged by Croatian forces and later entered service with the Croatian Navy.

All ship were originally named after mountains in the former Yugoslavia.

OB-01 Novigrad

Ships

Name (original)	Pennant number (original)	Launched	Status
Biokovo	PČ-171	1980[2]	Damaged by a 9K11 Malyutka missile fired by Croatian armed fishing boats off Škarda island[3] on 10 September 1991,[4] limped to Mali Lošinj.[3] Later captured by the Croatian Navy at Šibenik. In operational use as OB-01 Novigrad. Located at Lora Naval Base in Split.
Pohorje	PČ-172	1981[2]	Relocated to Montenegro. Sold to a private owner who uses it as a tourist ship.
Koprivnik	PČ-173	1981[2]	Relocated to Montenegro. Sold to a private owner who uses it as a tourist ship.
Učka	PČ-174	1982[2]	Relocated to Montenegro. Transferred to the Ministry of Interior Affairs in 2003 and used by the Naval police since 2005 under the name P-01 Bar. Sold for scrap in 2012.[5]
Grmeč	PČ-175	1982[2]	Relocated to Montenegro. Sold to a private owner from Biograd, Croatia who uses it as a tourist ship.
Mukos	PČ-176	1983[2]	Captured by Croatian forces after being hit with an improvised torpedo. In service with the Croatian Navy as OB-02 Šolta.
Fruška Gora	PČ-177	1983[2]	Relocated to Montenegro. Sold to a private owner who uses it as a tourist ship.
Kosmaj	PČ-178	1983[2]	Relocated to Montenegro. Transferred to the Ministry of Interior Affairs in 2003 and used by the Naval police since 2005 under the name P-03 Herceg Novi. Sold for scrap in 2012.[5]
Zelengora	PČ-179	1983[2]	Relocated to Montenegro. Sold to a private owner from Croatia in 2007 who uses it as a tourist ship Iliria.
Cer	PČ-180	1984[2]	Captured by Croatian forces. In service with the Croatian Navy as OB-03 Cavtat.
Durmitor	PČ-181	1985[2]	Captured by Croatian forces. In service with the Croatian Navy as OB-04 Hrvatska Kostajnica.

References

1. "Vessel Design and Development - Fast Patrol Craft Mirna" (PDF). hrbi.hr. Retrieved 12 November 2013.
2. "Kraljevica - Reference list". hb.hr via web.archive.org. Archived from the original on November 23, 2010. Retrieved 12 November 2013.
3. Udruga Dragovoljaca Hrvastke Ratne Mornarice - Zadar (Croatian)
4. Zdenko Vidov: Izgleda kao da je netko namjerno kočio stvaranje odreda (Croatian)
5. "Dva najveća plovila policije idu u staro željezo". pomorac.net (in Croatian). September 11, 2012. Retrieved 12 November 2013.