Project 11356 Admiral Grigorovich Class Frigates, Russia
The Project 11356 Admiral Grigorovich Class frigates are under construction at Yantar Shipyard, based in Kaliningrad, for the Russian Navy. The vessels utilise the same design developed for the Indian Navy's Talwar Class frigates.
The Admiral Grigorovich Class frigates can be deployed in anti-surface warfare (AsuW), anti-submarine warfare (ASW) and anti-air warfare (AAW) missions, and are capable of conducting missions as a single vessel as well as a part of task force.
The Russian Ministry of Defence signed two contracts with Yantar Shipyard between 2010 and 2011 for the construction of six Project 11356 frigates. The keel of the first ship in series, Admiral Grigorovich, was laid down in December 2010 and the vessel was floated out of dry-dock in March 2014.
The second ship, Admiral Essen, was laid in July 2011; Admiral Makarov was laid in February 2012; Admiral Butakov was laid in July 2013; and Admiral Istomin was laid down in November 2013.
The Russian Navy plans to induct Project 11356 frigates into its Black Sea Fleet, while deliveries are scheduled between 2014 and 2016.
Design and features of the Admiral Grigorovich Class frigates
Project 11661 Gepard Class light frigates were developed and built by Zelenodolsk Shipyard for the export market.
The Admiral Grigorovich Class incorporates a stealthy hull design developed by the Severnoye Design Bureau. The hull and superstructures were designed to have low radar, acoustic and infrared signatures. The frigate features a flight deck at aft to carry a Ka-28 or a Ka-31 helicopter.
The frigate measures 124.8m in overall length and 15.2m in width, and can complement a crew of 220. The draught at full load displacement is 4.6m, while the standard and full load displacements of the vessel are 3,350t and 3,860t respectively.
Admiral Grigorovich Class missiles
The Club-N missile system fitted aboard the frigate serves as the anti-ship missile. The missiles are launched by eight-cell 3S-14E under-deck launcher complemented by 3R-14N-11356 fire control system and 3C-25E acquisition radar.
Anti-aircraft defence is provided by Shtil-1 medium range air defence missile system, Igla man-portable surface-to-air missile system, and Kashtan air defence missile/gun system including up to six fire modules, a command module, a storage and reloading system, 64 missiles, and 6,000 rounds of 30mm ammunition. The Shtil-1 complex is equipped with 3S90E launcher and 3R90E1 fire control system, and can simultaneously engage up to 12 targets within the range of 3.5km to 32km.
Artillery and ASW weapons
The main gun fitted on the forward bow deck is an A190E 100mm gun featuring 5P-10E fire control system which enables to track and engage multiple targets effectively. The ?190 naval gun can fire high explosive (impact fuse) and AA (time fuse) ammunition at a rate of 80 rounds per minute for ranges more than 20km.
The ASW capability is provided by two DTA-53-11356 twin torpedo tubes, and a RBU-6000 depth charge rocket launcher firing 90R ASW rockets and RGB-60 depth rocket bombs.
Sensors and countermeasures
The Admiral Grigorovich Class is equipped with hull mounted sonar, SNN-137 towed active array sonar, Fregat-M2EM air/surface search radar, and MR-212/201-1 and Nucleus-2-6000A navigation radars.
Countermeasures are provided by ASOR-11356 Electronic Counter Measures (ECM) system and PK-10 close-range decoy dispensing system. The PK-10 system, which includes KT-216-E decoy dispenser, A3-SR-50 radar decoy round and A3-SO-50/A3-SOM-50 electro-optical decoy round, protects the vessels from incoming radar or electro-optical guided weapons.
The combined gas and gas (COGAG) propulsion system integrating two cruise turbines and two boost turbines powers the Admiral Grigorovich Class. The main propulsion plant generates a maximum power output of 56,000hp.
The frigates are also fitted with four WCM 800/5 diesel-alternators producing 3,200kW electricity for shipboard systems. The propulsion system ensures a maximum speed of 30kt and cruising range of 5,000nmi. The vessel can continuously operate for 30 days.
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