# Russian Lada-class submarine construction

> Live situation record from CLSTR: https://clstr.news/situations/russian-lada-class-submarine-construction
> Updated: 2026-09-01T17:59:20.000Z. Sources: 4. Developments: 2.

Russia has commenced construction of the Maloyaroslavets, a Lada-class (Project 677) diesel-electric submarine. The keel-laying ceremony was held on August 27 at the Admiralty Shipyards in St. Petersburg, managed by the United Shipbuilding Corporation.

Designed by the Rubin Design Bureau, the Lada-class is intended to modernize Russia’s conventional submarine fleet as a successor to the Soviet-era Kilo-class. The vessels feature a single-hull configuration, improved automation, advanced sonar, and a reduced acoustic signature to enhance stealth capabilities. The Maloyaroslavets is described as either the fifth or sixth ship in the series.

The class is expected to have a submerged displacement of approximately 2,700 tons, a maximum submerged speed of 21 knots, and a diving depth of 300 metres. Russia aims to eventually construct a total of nine Lada-class submarines as part of its long-term naval development strategy.

## Timeline

### 2026-09-01: Russia begins construction of Maloyaroslavets Lada-class submarine

Russia has laid the keel for the Maloyaroslavets, the sixth Project 677 Lada-class diesel-electric submarine, at the Admiralty Shipyards in St. Petersburg to modernize its naval fleet.

2 sources. https://clstr.news/cluster/russia-begins-construction-of-maloyaroslavets-lada-class-submarine

### 2026-08-27: Russia begins construction of Lada-class submarine Maloyaroslavets

Russia's United Shipbuilding Corporation has begun construction on the Maloyaroslavets, a new Lada-class diesel-electric submarine designed for the Russian Navy.

2 sources. https://clstr.news/cluster/russia-begins-construction-of-lada-class-submarine-maloyaroslavets

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Cite as: Russian Lada-class submarine construction. CLSTR, https://clstr.news/situations/russian-lada-class-submarine-construction