Admiralty Shipyards Resumes Project 677 Kronstadt Trials

Admiralty Shipyards (part of the United Shipbuilding Corporation) has begun the second stage of factory sea trials of the Project 677 Kronstadt submarine.

As part of the second stage of testing, which will also take place in the ranges of the Gulf of Finland, submarines will be immersed and the ship’s systems will be tested. At the first stage, which ended at the end of December 2021, the specialists of the enterprise and the crew of the Navy of the Russian Federation successfully carried out high-speed and maneuvering tests of the submarine, carried out the signage and inclining of the submarine, checked the sonar system, navigation and communications systems, tested the lifting mast devices.

Admiralty Shipyards is building the Kronstadt submarine according to an adjusted project, based on the results of trial operation of the lead ship. The ship’s technical equipment control system, electric propulsion system, and navigation complex have been modernized on the ships.

At the beginning of 2022, the enterprise began cutting metal for the fourth and fifth submarines of the 677 project. The state contract for their construction was concluded between Admiralty Shipyards and the Ministry of Defense of the Russian Federation in June 2019 as part of the Army-2019 Forum.

Project 677 submarines belong to the fourth generation of non-nuclear submarines and today are recognized as the most modern and promising domestic non-nuclear submarines, both in terms of combat effectiveness and other performance characteristics. Admiralty Shipyards is the only shipbuilding plant of this class.

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