By the NATO called Gus-class. Of this calls were totally 29 crafts built at the shipyards Almaz, Leningrad (4). Morye, Feodosia (19) and A,M. Gorky, Zelenodolsk (6) commissioned between 1969-1976. General technical details of this class: a displacement of 22 (standard)-27 (full load) tons and as dimensions 21,4 x 7,3 x 0.5 metres. The maximum speed was 49 knots although with a very limited range at this speed of just 200 nautical miles. The crew numbered 4 men. Transport capacity 40 soldiers or 4 tons stores. The armament consisted of 2x1-7,62mm machineguns and 4x1-3cm BP-30 Plamya grenade launchers.
