The Grisha class antisubmarine ship is designed to to find and destroy high-speed enemy submarines and warships escort convoys in the near sea zone. The first series of Grishas was built from 1968-74, but successive improvements to the design led to four discrete versions, three for the navy and one sub-class for the KGB coastal patrols. Classified by the Russians as small anti-submarine ships, the Grishas pack a heavy anti-submarine armament into a relatively small hull. Combined with a respectable anti-aircraft armament, this makes the Grishas much more effective than the profusion of older escort vessels that were retired in the late 1980s.

Large ASW corvette MPK-52 laid down 30 October 1968 at the Leninskaya Kuznitsa Shipyard, Kiev (yard No.100), launched 30 May 1971, commissioned 31 December 1971.

MPK-52 was excluded from the lists of the Black Sea Fleet on 01 August 1997 and transferred to Ukraine. Renamed to Sumy (hull number U209). Decommissioned 11 June 1999.