The patrol craft are designed similar to other Russian river patrol vessels. In terms of armament, and are only equipped with one 30 mm CIWS instead of two and carry a twin 12.7 mm machine gun turret; all of the vessels have MANPADS and a 7.62 mm machine gun. The suite of armaments they are equipped with allows the craft to engage surface, air, and ground threats and targets. The vessels are equipped with a simple navigational radar and communication systems. The vessels are equipped with 2 × 1100 hp M401B diesel engines, two fixed pitch propellers, 2 × 30 kW diesel generators; this gives them a top speed of about 25 knots.[1]