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Admiral Grigorovich class

Guided missile frigate

Admiral Grigorovich class (Krival IV class)

The Admiral Grigorovich class ships are general-purpose frigates

 
 
Country of origin Russia
Entered service 2016
Crew ~ 200 men
Sea endurance 30 days
Dimensions and displacement
Length 124.8 m
Beam 15.2 m
Draught 4.2 m
Displacement, standard 3 850 tons
Displacement, full load 4 035 tons
Propulsion and speed
Speed 30 knots
Range 9 000 km at 14 knots
Propulsion COGAG propulsion with 2 x cruise gas turbines (16 900 shp combined) and 2 x boost gas turbines (44 000 sp combined)
Airwing
Helicopters 1 x Ka-27 or Ka-31
Armament
Artillery 1 x 100-mm gun, 2 x 30-mm Kashtan CIWS
Missiles 1 x 8-cell VLS for Kalibr anti-ship/land attack cruise missiles or Oniks anti-ship cruise missiles, 3 x 12-cell VLS for Shtil-1 air defense missiles
Torpedoes 2 x twin 533-mm torpedo tubes
Other 1 x RBU-6000 anti-submarine rocket launcher

 

   It is the latest class of frigates, ordered by the Russian Navy. It is referred as Krivak IV class in the West. It is based on the Talwar class frigates, that were built in Russia for the Indian Navy. So essentially it is a modernized, but not an entirely new design. The first of the class, the Admiral Grigorovich, was commissioned in 2016. So far a total of six ships have been ordered. Once commissioned these were planned to operate by the Russian Black Sea Fleet.

   The function of Admiral Grigorovich class frigates are air defense, escorting of other warships and anti-submarine warfare. Some measures were taken to reduce the radar cross section of these new Russian warships. Though these frigates are not true stealthy vessels in any way. Also the Admiral Grigorovich class warships are not as powerful as many contemporary general-purpose frigates.

   Most distinguishable weapon of these Russian frigates is an 8-cell Vertical Launch System (VLS) for Kalibr (SS-N-27 Sizzler) supersonic cruise missiles. These missiles can engage ships and land targets. The same VLS can also  fire Oniks (SS-N-26 Strobile) anti-ship cruise missiles, that have a range of up to 600 km.

   Air defense is provided by three 12-cell VLS for Shtil-1 (SS-N-12) air defense missiles. So a total of 36 missiles are ready to use. These missiles have a range of 40 km. Last ditch defense is porvided by two Kashtan Close-In Weapon Systems (CIWS). Each of these gun/missile systems uses tow 30-mm rotary cannons and eight 9M311 short-range air defense missiles. The same missiles are used on Tunguska. There is also a 100-mm A-190 dual-purpose gun, which can engage air targets, surface ships, and bombard land targets. This gun has a maximum range of over 20 km and fires at a rate of up to 80 rounds per minute.

   There are two twin 533-mm torpedo tubes for heavyweight torpedoes. These can be used to engage enemy warships and submarines. Also there is a single 12-barrel RBU-6000 anti-submarine rocket launcher in front of the bridge. Reload rockets are stored below the deck.

   These warships can accommodate a single helicopter. It can be a Ka-27 anti-submarine warfare helicopter, or Ka-31 airborne early warning helicopter.

   The Admiral Grigorovich class warships have a Combined Gas or Gas (COGAG) propulsion system. For economical cruising power is provided by two DS-71 gas turbines, developing 8 450 shp each. For high speed operation there are two DT-59 boost gas turbines, developing 22 000 shp each. Power is delivered to 2 shafts. Maximum speed is 30 knots (56 km/h). These Russian warships have a range of nearly 9 000 km (4 850 nm) at 14 knots (26 km/h).

   Construction of the Admiral Grigorovich class ships was postponed due to problems with the engine supply. The first ships have Ukrainian gas turbines. It appears that the main Soviet center of maritime gas turbine design and production was in Ukraine. After the collapse of the Soviet Union, Russia used to import these engines from Ukraine. However following the 2014 Russian military aggression, the Ukrainians refused to supply Russia with military technology. As of 2014 some Admiral Grigorovich ships had no engines. These are to be fitted with alternative Russian designs, however these can not be completed before 2019-2020. Some sources report that funding, intended to complete construction of these frigates, was allocated to other Russian MoD projects. So at the moment future of the follow-on warships is uncertain.

 

Name Laid down Launched Commissioned Status
Admiral Grigorovich (745) 2010 2014 2016

active, in service

Admiral Essen (751) 2011 2014 2016

active, in service

Admiral Makarov 2012 2015 expected in 2016

under construction

Admiral Butakov 2012 2016 ?

under construction

Admiral Istomin 2013 ? ?

under construction

Admiral Kornilov ? ? ?

ordered

 

 
Admiral Grigorovich class (Krival IV class)

Admiral Grigorovich class (Krival IV class)

Admiral Grigorovich class (Krival IV class)

Admiral Grigorovich class (Krival IV class)

Admiral Grigorovich class (Krival IV class)


 
Admiral Grigorovich class (Krival IV class)

Admiral Grigorovich class (Krival IV class)

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