Korean Navy – 12 boats transferred 1968–1973 Polish Navy – 13 boats transferred 1964–1975 – decommissioned 1984–2006 Romanian Navy – 6 boats in service 1964–2004 Soviet Navy – Passed on to successor states Syrian Navy – 8 boats Yugoslav Navy – 10 boats Croatian navy – inherited 2 boats, one decommissioned during the 1990s, second used as a target boat for RBS-15 missiles. Military of Montenegro – Serbia-Montenegro sold 5 to Egypt in 2004, delivered in 2007. Osa II Algerian Navy – 8 boats transferred 1978 Angolan Navy – 6 boats transferred 1982–1983 Azerbaijani Navy – 1 boat Bulgarian Navy – 3 boats Cuban Navy – 13 boats Egyptian Navy – 4 boats (See note from Finland's Tuima class missile boat) Eritrean Navy – 5 boats Finnish Navy – 4 boats transferred 1974–75. Known as Tuima class missile boats. Decommissioned in 2003 and sold to Egyptian Navy, to be used as minelaying boats after being retrofitted. Indian Navy – 8 boats transferred 1976–77. Known as Chamak-class missile boats. decommissioned 1999–2003 Iraqi Navy – used during Operation Morvarid Libyan Navy – Unknown National Liberation Army – Unknown Russian Navy – Passed on from Soviet Navy Somali Navy – 2 Soviet Navy – Passed on to successor states Syrian Navy - 12 boats Vietnamese Navy – 8 boats Yemeni Navy – 18 boats See also List of ships of the Soviet Navy List of ships of Russia by project number References Notes Bibliography Conway's All the World's Fighting Ships 1947–1995 Page on Osa 2 from Indian Navy history Page on Osa 1 from Indian Navy history Trident and other operations in 1971 Indo-Pakistan war Slade, Stuart, "The true history of Soviet anti-ship missiles," RID magazine, May 1994. Shikavthecenko, V, "Lightings in the sea: the Russian FACs developments," RID September 1995. External links Complete Ship List of all Osa class missile boats Missile boat classes Missile boats of the Soviet Navy Missile boats of the Algerian National Navy Missile boats of the Angolan Navy Missile boats of the Azerbaijani Navy Missile boats of the Benin Navy Missile boats of the Bulgarian Navy Missile boats of the Croatian Navy Missile boats of the Cuban Navy Missile boats of the Egyptian Navy Missile boats of the Eritrean Navy Missile boats of the Korean People's Navy Missile boats of the Latvian Naval Forces Missile boats of the Libyan Navy Missile boats of the Montenegrin Navy Missile