Project 11541 Korsar
Yantar Shipyard has drafted technical documents for the export variant of the Korsar guard-ship developed by the Zelenodolsk projecting and design bureau, located in the Tatarstan autonomous republic, on the basis of the 1154.0 Neustrashimy guard-ship (Project 11540). The Neustrashimy (Fearless) was commissioned by the Navy in 1993 and confirmed its high specifications in action.
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 Korsar (Project 11541) is intended for search and elimination of the enemy's surface ships and submarines, accomplishment of convoy missions and patrolling operations in the sea. Although the modernized frigate of project 11541 is designed for searching and destroying of submarines, it can fight against surface ships, defend from air attacks both independently and in tactical groups.
Main particulars of the ship of project 11541: length 117.6 m, displacement - 4,500 t, speed 30 knots, cruising range - 5100 miles. Armament complex include assault missile complex "ship-ship" antiaircraft missile complex of medium and close range, single barrel 100 mm artillery emplacement, torpedo-tubes 533 mm, projectile bomb launcher (RBU -6000) antisubmarine or rescue helicopter. It has special hangar for helicopter on board.
It is powered by two sustainer gas-turbine engines with the capacity of 9,000hp each and two afterburner engines with the capacity of 19,500hp each, which allows the vessel to hit the speed of up to 30 knots. The guard-ship is to be fitted with the Sigma-E combat information and control system. Its main weapon will be Uran or Yakhont anti-ship cruise missiles that can hit targets at ranges of up to 130km. The artillery includes the 10mm A-190E universal shipborne missile and artillery system with the rate of fire of 80 rounds per minute.
The Korsar is protected from aerial assault by the Kashtan air defence missile and artillery system that hits targets at ranges of up to 8km. Anti-submarine weapons include six torpedo tubes for firing missile torpedoes and SET-65E and 53-65KE torpedoes, as well as the RBU-6000 12-barrel jet projector with gravitation depth bombs. The vessel also carries an anti-submarine helicopter, systems of electronic warfare and passive jamming, a laser emission detection set and a new-generation DP-65 anti-airborne grenade launcher.
Shipyard Yantar took part in international exhibition of navy and air forces "LIMA 2003" in Malaysia and presented the frigate of project 11541 "Korsar". The exhibition took place from 30 September 2003 till 05 October 2003. Yantar continue emphatically offer ships of it's produce to world market of navy equipment. International exhibition of navy and air forces "LIMA 2003" is considered to be the one of the most attended in South-East Asia. Many countries of the world present their production and new technologies in field of military industry at this exhibition. At the exhibition shipyard Yantar presented frigate of project 11541 "Korsar" which was presented before at several navy saloons and attracted attention of potential buyers.
One of the main advantage of the ship is that it's prototype is already in armory of Russian Navy. However "Korsar" is the further development of project 11540, which was built at shipyard "Yantar". The first vessel of this series cruiser "Neustrashimyi" was already 10 years belong to battle structure of Baltic Fleet of Russian Federation and have confirmed efficiency of the design.
The Korsar development program 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 ship'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 aluminium-magnesium alloy. The ship is equipped with active and passive roll stabilisers 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 ship has good seaworthiness and high manoeuvrability.
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 ship is powered by a two-shaft COGAG 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.
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