The corvette project 11541 Korsar patrol ship is designed to search for, to track and to engage surface, underwater and air targets, as well as to perform escort and patrol tasks. The corvette can carry out a wide class of missions, operating autonomously and within a tactical task force in sea and oceanic areas.
The corvette Korsar development programmer has drawn on Russia's rich experience in patrol vessel design and operations, in international conventions on sea rescue and pollution prevention, as well as in national standards for sea systems survivability, crews' working conditions, and weapons employment. The corvette's hull is divided into 13 watertight compartments by lateral bulkheads. The hull itself is made of low-alloy steel, while external walls of the superstructure are made of carbon steel, and internal walls — of aluminum-magnesium alloy.
The corvette is equipped with active and passive roll stabilizers to reduce roll amplitude in high sea. All crew's cabins and service compartments are air-conditioned to provide comfortable conditions during long-term cruises in any season of the year. The corvette has good seaworthiness and high maneuverability. It is armed with diverse powerful weapon systems. Its secondary radar, electromagnetic and thermal signatures, as well as level of underwater noise and its interference with the sonar operation, are significantly reduced.
The corvette Korsar is powered by a two-shaft OGAG gas-turbine propulsion plant with fixed-pitch propellers. It comprises a cruise propulsion unit with two gas-turbine engines, two two-speed reduction gearboxes and a cruise reduction gear attachment allowing either cruise engine to rotate shafts on both sides, as well as a booster unit including two gas-turbine engines and two boost one-speed reduction gearboxes. Electric power is supplied by two power stations comprising five diesel generators. Auxiliary power unit includes two automated boilers with a steam capacity of 1,000 kg/h and a working pressure of 5 kg/sq cm.
The corvette Korsar (NATO Neustrashimy Class) general characteristics:
- Displacement — 4,500 tons
- Length — 129.6 m
- Beam — 15.6 m
- Draught — 8.4 m
- Main propulsion — Diesel kW 42,000
- Range — 5100 nautical miles
- Speed — 30 knots
- Complement — 210 (35 officers)
- Armament and Equipment:
- Missile weapons Uran-E ASM system (4x4 launchers, 16 missiles), or Yakhont ASM system (2x6 launchers, 12 missiles), or Kalibr-NKE ASM system (1x8 below-deck vertical launcher), or Moskit-E/Moskit-MVE ASM system (2x4 launchers, 8 missiles)
- Anti-submarine missile, torpedo and anti-torpedo systemssix single-tube torpedo launchers to fire missile-torpedoes or torpedoes
- RPK-8E ASW missile system, comprising one RBU-6000 12-tubed depth bomb launcher for single/salvo firings of 90RE rockets with a gravitational underwater projectile, and ammunition loader (not installed on ships armed with Moskit-E/Moskit-MVE/Kalibr-NKE ASM systems)
- KSUS Purga fire control system for missile-torpedoes, torpedoes and rockets with gravitational underwater projectiles launched against surface and underwater targets
- Artillery systems 100mm A-190E multipurpose gun mount with 5P-10E fire control system
- Air defense missile systems Klinok AD missile system with four eight-canister drum-type launchers.
Kashtan ADGMS comprising one command and control module and two combat modules (64 SAMs, 6,000 rounds). When mounted on ships with Moskit-E/Moskit-MVE ASM systems, Kashtan command module has no TAR and receives designation data from Sigma-E combat information management system.
- Kashtan system can be replaced, at customer’s request, by two Palma AA gun systems with Sosna-R SAMs and electro-optical fire control system
- ECM systemsMP-407E ECM system (option — TK-25E)
- Spektr-F laser-emitting equipment
- PK-10 decoy launcher (option — Prosvet-M)
- Air systems Ka-28 ASW helicopter or Ka-31 radar picket helicopter in a fixed hangar with maintenance equipment, munitions
- Anti-saboteur weapons DP-65 anti-saboteur system (three ten-barrel grenade launchers RG-55M grenades fired at targets designated by MG-747 dipping sonar (options — Anapa-47 or Pallada)
- Electronic equipment Fregat-MAE-3 3D automated radar with Poyma-E data processing system
- Monument-E multifunction radar system
- 67R IFF radar system
- Amga self-contained submarine detection system with unified radio acoustic data link
- Podzagolovok-23 basic collective mutual interference avoidance system
- Ogon-50 IR night group navigation system Sonar equipment
- Zarya-ME sonar system with hull-mounted and towed arrays
- Combat information management system Sigma-E system
- Navigation equipment MR 212/201-1 navigation radar
- Gorizont-25E integrated navigation system
- Topaz-5 automatic position plotter
- LI2-1ME log
- NEL-20K echo sounder
- KM115-07 magnetic compass
- MS-98 weather station
- RN naval direction finder
- VNTs-452 surveillance and target designation sight
- NAVTEX Morena-1 radio receiver
- Ladoga gyroscopic stabilization system Communications, relay and visual observation equipment
- Buran-6E automated communications system
- VHF radiotelephone station
- Musson communications system: intership voice transmission system optical devices; searchlights, pyrotechnic means, code flags and figures; binoculars and other equipment.