OREANDA-NEWS. Vyborg Shipyard completed on July 29 two-day sea trials of a semi-submersible heavy-lift barge “Atlant”, the company said on Tuesday.

The shipbuilder’s trials included a series of tests of the vessel's systems and its performance during submersion and refloating.

On August 5 the barge will be put into service and become a dock platform for fabrication of the 21900M-class icebreaker’s hull.

Vyborg Shipyard is part of the state-owned United Shipbuilding Corp. and is one of the largest shipbuilding companies in the North-West region of Russia. The shipyard specializes in the construction of offshore drilling rigs, icebreakers, ice-class vessels, ships of small and medium tonnage, and provides ship repair service.