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Lada class

Patrol submarine

Lada class

The Lada class diesel-electric patrol submarine was designed for anti-ship and anti-submarine defense

Entered service 2010
Crew 38 men
Diving depth (operational) ~ 250 m
Diving depth (maximum) 300 m
Sea endurance 45 days
Dimensions and displacement
Length 72 m
Beam 7 m
Draught 6.5 m
Surfaced displacement 1 675 tons
Submerged displacement 2 700 tons
Propulsion and speed
Surfaced speed 10 knots
Submerged speed 20 knots
Diesel generators 2 x 3 499 hp
Electric motors 1 x 5 576 hp
Missiles Alfa (SS-N-27 Sizzler) cruise missile, Oniks (SS-N-26) anti-ship cruise missile
Torpedoes 6 x 533-mm torpedo tubes, for 18 torpedoes, anti-submarine or anti-ship missiles
Other mines in place of missiles and torpedoes


   The Project 677 or Lada class is a diesel-electric patrol submarine, developed by a Russian Rubin design bureau. It is an improved version of the Kilo class, fitted with an air-independent propulsion and new combat systems. It is claimed that the Lada class is much quieter than its predecessor. The previous Kilo class was a basic submarine, simple in design and technologies, however it achieved respectable export sales. Its major operators are China, India and Iran.

   The lead boat was laid down at the Admiralty Shipyard in St. Petersburg in 1997 and launched in 2004. It was commissioned in 2010 and serves in a Baltic Fleet. The Admiralty Shipyard is building another three submarines of this class. The lead boat, Sankt Peterburg, was extensively tested by the Russian Navy, before entering service. However it appeared that this submarine has fallen far short of requirements. The main problem was propulsion system. Also there were a number of other major issues. In 2011 construction of three follow-on boats was suspended and Rubin design bureau was ordered to make changes to the project. The lead boat is currently used only as a test vessel for testing various equipment, rather than for active duty. In 2013 construction of the second boat resumed. In 2015 construction of the third boat resumed. These boats were heavily redesigned and are now built to an improved project.

   The Lada class submarines are intended for anti-submarine and anti-ship defense of naval bases, costal installations and sea lanes, as well as patrol and surveillance tasks.

   The Lada class features a new anti-sonar coating for the hull resulting in low acoustic signature. Submarines are fitted with sophisticated sonar equipment with bow and flank arrays, as well as towed array.

   The Lada class has six 533-mm torpedo tubes for a mix of 18 torpedoes or tube-launched missiles. These include Alfa (NATO designation SS-N-27 Sizzler) multi-role cruise missiles, or Oniks (SS-N-26) anti-ship cruise missiles.

   This submarine class is fitted with a fuel cell plant, which gives air independent propulsion with oxygen/hydrogen fuel cells and electric/chemical generators. The AIP system increases the Lada class submerged endurance to 45 days. The submerged cruising range is 500 nautical miles (900 km) at 3 knots.




   Amur class, or Project 1650, a less capable version, intended for export. It is named after the Amur river. Design work has been completed for a whole family of submarines with a displacement ranging from 550 to 1 850 tons and various weapon systems.


Name Laid down Launched Commissioned Status
Sankt Peterburg (B-585) 1997 2004 2010

active, in service. Used as a test platform

Kronstadt (B-586) 2005 ? expected in 2017

under construction

Velikye Luki (B-587) 2006 ? expected in 2018

under construction

Petrozavodsk 2006 ? ?

construction suspended


Video of the Amur class patrol submarine


Lada class

Lada class

Lada class

Lada class

Lada class

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