Russian Lada-class submarine Kronstadt completes second phase of sea trials


According to information published by Tass on April 15, 2022, the Lada-class submarine Kronstadt built by the Admiralty Wharves Shipyard has completed the second stage of its shipbuilder's sea trials.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Russian Navy's Lada-class submarine Kronstadt (Picture source: Сергей Шмидт СПБ)


During the second stage which took place at ranges of the Gulf of Finland and lasted nine days, the submarine performed diving and its systems were checked.

After the submarine returns to the outfitting quay, the shipbuilders will start to prepare it for the third stage of its shipbuilder's sea trials.

The Admiralty Wharves Shipyard has already connected the hull structures of the third Project 677 submarine Velikiye Luki. Metal cutting work continues for the fourth and the fifth submarines. A contract for their construction was signed between the Admiralty Wharves Shipyard and the Defense Ministry in June 2019 at the Army 2019 forum.

The Project 677 submarine is a fourth-generation diesel-electric sub recognized as the most advanced conventional sub in terms of combat effectiveness and other performance characteristics. The Admiralty Wharves Shipyard is the sole manufacturer of submarines of this class.

Kronstadt is 68 m long and has a submerged displacement of 2,650 t. The submarine features a full underwater speed of 21 knots and a surface range of 6,000 nautical miles at a speed of 7 knots.

The combatant is armed with six 533 mm torpedo launchers and has a 37-strong crew. Unlike underwater combatants of previous generations, the Project 677 submarine can fire cruise missiles in salvo mode against sea targets.

She is fitted with a modern combat management system, cutting-edge sonar unit, new anti-sonar coating, and externally mounted extendable subsystems.