Dating from 1935-1936 and to be used as minesweeper and minelayer. Sister ships Bui, Cheka, Fugas, Kapsiul, Gafel, Korshun, Minrep, Paravon, Patron, Plamya, Podjigatel, Provodnik, Strela, Tros, Velta, Verp, Vzryf and Zapal. Still existing around 1944-1945. Displacement 500 tons. Armed with 1-4" gun and 4-37mm guns. Speed 16 knots.
