A hydrographic survey ship is a vessel designed to conduct hydrographic research and survey. Nautical charts are produced from this information to ensure safe navigation by military and civilian shipping.

The Project 872 Finik-class hydrographic vessels has a length of 61,3 m, a width of 10,8 m and a draft of 3,2 m. The vessel has a standard displacement of 939 tonnes and full load displacement of 1190 tonnes. It has a maximum speed of 13,4 knots, range of 4356 nmi at 11,8 knots and an endurance of 15 days. The vessel is equipped with 2 Mius navigation radars, Rumb radio direction finder. The vessel is powered by two 960 hp Cegielski-Sulzer 6AL25/30 diesels rotating two controllable pitch propellers. It also has two 143 hp mSS5e electric motors, and three 192 kW diesel generators. The vessel has a crew of 27 and it can carry a research team of 9 persons.

Small hydrographic survey vesses of this project in two modifications served on all fleets of the USSR and later - the Russian Federation. In total, 23 vessels of this type were built for the Navy.

Hydrographic Survey Vessel GS-402 laid down at the Stocznia Polnocna Shipyard, Gdansk, Poland (yard No.872/8), launched 23 June 1979, commissioned 30 September 1979 and was assigned to the Black Sea Fleet.

Now in service.