The Kozuf is a Yugoslavian Type 131 large patrol craft of 85 tons displacement. The Kozuf is powered by two MTU Mercedes-Benz 820Db diesel engines providing a top speed of 22 knots. Armaments consist of two triple arrangements of Hispano-Suiza 20 mm guns. Found on http://www.probertencyclopaedia.com/browse/RK.HTM