The dock is designed for providing vessels lift from water as well as for their launch and repair. 6 units were ordered and built for Yugoslavia, Bulgaria and the Soviet Ministry of Fishery.
The dock is designed for providing submarines lift from water as well as for their launch and repair under microclimate conditions with controlled parameters. One unit was ordered and built for the Soviet Navy.
The dock is designed for providing nuclear-powered ice-breakers lift from water, for their launch and repair. The dock was modernized by the order of Russian Ministry of Transportation.