A vessel of special construction is designed to removal of floating oil products and debris of waters closed roadsteads, ports and harbors with the following transport of collected oil products and debris to the delivery place. Purification of the open waters part is provided by the work on the vessel run, in the stagnant waters areas (close to the piers, moorings, between vessels and etc.) with the work by moorage, within the limits of the bow maneuvering devices.

The vessel of project 14630 is a catamaran streamlined, with the engine rooms and deck cabin disposed in the aft with two hydro cyclones in breeding compartments, with two with pinchers. Width of etched strip with pinchers is 15 meters.

Oil/Debris Skimmer MUS-277 laid down at the Azov Shipyard, commissioned in 1977, assigned to the Black Sea Fleet.

Now in service.