Yono-class midget submarine

Abstract is: The Yono-class submarine (occasionally confused with Yugo-class) is a class of North Korean miniature submarines, produced for domestic use as well as for export. Also referred to as the Yeono class, these submarines displace 130 tons, significantly less than North Korea's larger 1,800-ton Romeo-class submarines. As of May 2010, North Korea is reported to operate ten of these submarines. Iran is reported to have at least one Yono submarine and to have copied the design as the Ghadir-class.