Russian Lada class submarine Velikiye Luki to be floated in few days


According to information published by Tass on December 23, 2022, the Velikiye Luki diesel-electric submarine of project 677 Lada will be floated soon. The date has already been set by Admiral Nikolai Yevmenov, the commander-in-chief of the Russian Navy, the Russian Defense Ministry said.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Russian Project 677 (Lada class) submarine Velikiye Luki. (Picture source: VPK)


The submarine will be put afloat in the territory of JSC Admiralty Shipyards (affiliated with the United Shipbuilding Corporation) in St. Petersburg, where it was laid down in March 2015, on December 23 this year.

The Velikiye Luki diesel-electric submarine is equipped with an upgraded system of control over ship-based technical means, electric propulsion, and a set of navigational equipment. The sub’s state acceptance trials are due to begin in late December.

The asymmetrical strong hull is made of AB-2 steel and has almost the same diameter along its entire length. The forward and aft ends are of spherical shape.

The hull is divided by flat bulkheads into five watertight compartments along its length, and by platforms the hull is divided by height into three tiers. The lightweight hull is given a streamlined shape ensuring high hydrodynamic performance.

The submarine has a length of 72 m (236 ft 3 in), a beam of 7.1 m (23 ft 4 in), and a draught of 6.5 m (21 ft 4 in). She can reach a top speed of 21 knots (39 km/h; 24 mph) submerged and 10 knots (19 km/h; 12 mph) surfaced.

Russia continues to replace project 877 Soviet-era diesel-electric submarines with more modern subs of project 636.6 and 677, which are under construction at the Admiralty Shipyards in St. Petersburg.

As it was reported back in June, the Admiralty Shipyards is planning to hand over two project 677 Lada-class submarines — the B-586 Kronshtadt and the B-587 Velikiye Luki as well as project 636.6 B-588 submarine — the Ufa to the Navy.

The Admiralty Shipyards is one of the biggest shipbuilding enterprises in St. Petersburg, which specializes in non-atomic shipbuilding. The enterprise builds submarines and icebreakers.