Russia's Admiralty Wharves Shipyard has started the first stage of the shipbuilders sea trials of the Project 677 submarine Kronstadt, the shipyard’s press office said. Kronstadt (B-586) is the second of the Lada-class of submarines
Russia’s Defense Ministry has signed contracts with the Admiralty Wharves Shipyard for the construction of two Project 636.3 (NATO reporting name: Improved Kilo) and Project 677 (Lada-class) large diesel-electric submarines (SSK).