According to the Conway's All the World's Fighting Ships, Iran purchased some Chaho-class fast attack crafts from North Korea in 1987.[2] The Shahid Joolaee Marine Industries of the Marine Industries Organization has built vessels similar to the class with a different superstructure and a raised mast in order to improve radar capabilities.[1] A 2007 report by the Israeli Institute for National Security Studies suggests that Iran has exported the vessel to Syria.[3]
^Gardiner, Robert; Chumbley, Stephen; Budzbon, Przemysaw, eds. (1996), "Iran", Conway's All the World's Fighting Ships 1947–1995, Conway Maritime Press, p. 187, ISBN978-1557501325
^Shapir, Yiftah (August 2007), "The Syrian Army Buildup"(PDF), Strategic Assessment, 10 (2), Tel Aviv, Israel: The Institute for National Security Studies