Exported to Sudan in 1998. The titles on the fuselage read ЦКБ по СПК им Р.Е. Алексеева. This is short for Центральное Конструкторское бюро по судам на подводных крыльях имени Р.Е. Алексеева, which is the official name of the Alekseyev Central Hydrofoil Design Bureau (a.k.a. Alekseev's Hydrofoil Design Bureau).