Just one unit built which was completed at the Primoskiy Yard, Leningrad, Russia with yard number 110 on January, modernized in 1975 ad stricken on 24 June 1991. Displacement of 175 (standard)-210 (full load) tons and as dimensions 39,0 x 8,10 x 1,80 metres. The M-504 diesels machinery supplied 15.000 hp allowing a maximum speed of 36 knots and with a speed of 12 knots a range of 1.200 nautical miles. The original armament consisted of 1x2-5,7cm/50 AK-725 guns and 1x5-3cm/54 AK-630 gun, the latter in 1975 1x2-5,7cm/60 and 1x1-5,7cm/50 AK-157 gun. The crew numbered 30 men.
