| Class overview | |
|---|---|
| Builders: | Admiralty Shipyard, Saint Petersburg |
| Operators: | Russian Navy |
| Preceded by: | Kilo class submarine |
| Built: | 1997–2011 |
| In service: | 1 |
| Building: | 2 (suspended) |
| Planned: | 8 |
| Completed: | 1 |
| Active: | 1 (test boat) |
| General characteristics | |
| Type: | Submarine |
| Displacement: | 2,700 long tons (2,700 t) submerged; 1,765 t Surfaced |
| Length: | 72 m (236 ft 3 in); 67 m on waterline |
| Beam: | 7.1 m (23 ft 4 in) |
| Draft: | 6.5 m (21 ft 4 in) |
| Propulsion: | Electric propulsion motor on permanent magnets Storage battery with increased service life 2 diesel Air Independent Propulsion (AIP) systems based on oxygen-hydrogen fuel cells 1 shaft 2,700 hp (2,013 kW) |
| Speed: | 21 knots (24 mph; 39 km/h)Submerged; 10kt Surfaced |
| Range: | 650nm |
| Endurance: | 45 days |
| Test depth: | 300 m (984 ft) |
| Complement: | 34(38) officers and men |
| Armament: | 6 × 533 mm (21 in) torpedo tubes 18 torpedoes SSM • RPK-6/SS-N-16 Vodopad/Stallion SUBROC [1]; |
The Russian Navy's Project 677 Лада (Lada) is a submarine class designed by the Russian Rubin Design Bureau. The class is also referred to as the Petersburg (or Sankt Peterburg or Peterburg) class, after the lead ship. A program to develop a "fourth generation" diesel-electric submarine, it aimed to produce a highly improved version of the Project 636 Kilo class with much quieter, new combat systems, and possibly air-independent propulsion.
First vessel, the Sankt Peterburg, was launched in October 2004 and began initial sea trials in November 2005. After undergoing extensive testing it was transferred to Russian Navy in April 2010.[1] Another two vessels were under construction at the Admiralty Shipyard with plans to launch four to six submarines by 2015. The Russian Navy set a requirement for total Lada-class force of eight submarines.[2]
In November, 2011 the Russian Navy has decided that this class of submarines will not be accepted into service, as the lead ship has fallen far short of requirements during tests.[3] The lead boat will be retained as a test vessel to experiment with various systems, the construction of the remaining boats of the class will be frozen.
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Project 677 Lada submarines are series of Russian diesel electric subs developed in the late 1990s. The project general designer is Yury Kormilitsyn. Unique feature of the project is combination of small size and low noise with powerful torpedo and missile armament; use of hydrogen-oxygen fuel cells generating electricity.
The subs are designed for antisubmarine and antisurface warfare, defense of naval bases, seashore and sea lanes, as well as for conducting reconnaissance. Mono-hull design was used during the sub's construction for the first time since 40s.
In comparison to double-hulled Kilo-class, surface displacement has been reduced by 25 percent – from 2,300 down to 1,765 tonnes. Full submerged speed has been increased from 19 up to 21 knots. Crew complement has been decreased from 52 to 34; endurance has been increased up to 45 days. Lada-type subs are marketed as being comparatively less expensive compared to foreign projects, like the German-Italian Type 212 and Franco-Spanish Scorpene.
The sub is equipped with Litiy combat control automated system.
Several smaller variants — like the Project 1650 Амур class (named for the Amur river) — have been designed for export.
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