Kralj-class missile boat

Kralj Dmitar Zvonimir (RTOP-12) photographed in Makarska in 2008 during the Croatian Navy Day
Class overview
Builders	Kraljevica Shipyard, Kraljevica, Croatia
Operators	Croatian Navy
Preceded by	Končar class
In commission	1992–present
Completed	2
Active	2
General characteristics
Displacement	390 tons (full load)
Length	177 ft 8 in (54.15 m)
Draft	11 ft 8 in (3.56 m)
Propulsion	Three shafts; 3 × M504-B2 diesel engines
Speed	Maximum: 36 knots (67 km/h; 41 mph) Continuous: 32.8 knots (60.7 km/h; 37.7 mph)
Range	1,700 nautical miles (3,100 km) at 18 knots (33 km/h)
Complement	5 officers, 27 enlisted
Armament	4–8 × RBS-15 anti-ship missile 1 × Bofors 57 mm (2.2 in) D70 gun 1 × AK-630 CIWS

The Kralj class (English: King) is a class of two missile boats, one of which was on order for the SFR Yugoslav Navy and one of which, following the break-up of Yugoslavia, was built for the Croatian Navy. As of 2009 both vessels remain in service. It is an upgraded version of the Rade Končar missile boat class and is 8.5 metres (28 ft) longer. Kralj Petar Krešimir IV and its sister ship Kralj Dmitar Zvonimir are the only ships in their class. A potential third ship was under consideration in 1999, but the ship was never commissioned due to budget restraints.

Kralj means "king" in Croatian - both vessels are named after historic kings of Croatia.