The Project BL-820 boat was developed by PKF Mnev & K LLC in St. Petersburg (Russia) on the basis of the BL-820 RIB Kurs LLC with an inflatable side. The boat of this project is multifunctional and designed to solve a wide range of tasks both in coastal areas of navigation and in the open sea when the boat is based on surface ships. It is a small boat with an aluminum hull, a closed cabin and a foam-filled side. The boat hull material is Amg-5M, the volume of the foamed side is 4 cubic meters.

Boat RK-544 laid down at PKF Mnev & K St. Petersburg, commissioned on 2016 and was assigned to the Black Sea Fleet.

Now in service.