Basic Information

Name

Gepard Class (Project 11661 Class) Russian Frigate

Designation

Gepard Class

Alternate Designation

Gepard Class; Project 11661 Class

Equipment Type

Frigate

Manufacturer

Zelenodol'sk Zavod

Date of Introduction

2003

Description

The Gepard Class (Project 11661 Class) Russian Frigateis a class of frigates that were intended as successors to the earlier Koni-class frigates and Grisha, and Parchim-class corvettes. The first unit of the class, Yastreb (Hawk), was laid down at the Zelenodol'sk Zavod shipyard at Tatarstan in 1991. She was launched in July 1993, after which she began fitting out; fitting was nearly completed by late 1995 when it was suspended due to lack of funds. Renamed Tatarstan, the ship was finally completed in July 2002 and became the flagship of the Caspian Flotilla. She has two sister ships, Albatross (renamed Dagestan), and Burevestnik (Storm Petrel), which were still under construction as of 2012.

Naval & Littoral Specifications

Crew 109

Beam 13.80 m

Draft 3.70 m

Variants

Tatarstan (ex-Yastreb) Commissioned: 2003 Operator: Russian Navy Status: Active Fleet: Caspian Sea

Dagestan (ex-Albatros) Commissioned: 2011 Operator: Russian Navy Status: Active Fleet: Caspian Sea

HQ-011 Dinh Tien Hoang Commissioned: 2010 Operator: Vietnam People's Navy Status: Active Fleet: VPN 4th Regional Command

HQ-012 Ly Thai To Commissioned: 2011 Operator: Vietnam People's Navy Status: Active Fleet: VPN 4th Regional Command

HQ-015 Tran Hung Dao Commissioned: 2018 Operator: Vietnam People's Navy Status: Active Fleet: VPN 4th Regional Command

HQ-016 Quang Trung Commissioned: 2018 Operator: Vietnam People's Navy Status: Active Fleet: VPN 4th Regional Command

System

Alternative Designation Gepard Class; Project 11661 Class

Type Frigate

Builder Zelenodol'sk Zavod, Kazan, Tatarstan, Russia

Crew 109 (15 off. + 94 enl.)

Export Models The Gepard class was designed from the outset as a lightweight, inexpensive export vessel. The Russians have offered five variants for foreign sale. Gepard 1: Helicopter platform (no hangar), VDS deleted. Gepard 2: Helicopter platform and hangar, VDS and SA-N-4 deleted. Gepard 3: Increased beam of 13.8 metres (45 ft 3 in), displacement increased to 2,100 tons full load, single forward-placed Kortik CIWS in place of AK-630s, helicopter hangar above VDS housing. Gepard 4: Unarmed version for search-and-rescue, though weapon mountings still in place. Gepard 5: helicopter platform (no hangar), increased range to 6,000 nmi (11,000 km) at 10 knots (19 km/h) knots, reduced speed of 23 knots (43 km/h), gas turbines replaced with 2 8,000 bhp (6,000 kW) diesels. The Vietnam People's Navy received in March and August 2011 two Gepard 3.9-class frigates ordered in 2006, built in Russia at Tatarstan's Gorky Shipbuilding Plant. As of 2012 Vietnam was examining a purchase of two more, possibly built in Vietnam under license. In late 2011 Vietnam signed a contract for an additional batch of two ships in an anti-submarine version. A further two ships were ordered in 2014 to bring the total order up to six vessels. Sri Lanka began talks for the credit purchase of a Gepard 5.1 frigate in 2017 and the Sri Lankan cabinet approved the proposal by President Maithripala Sirisena for the purchase of the ship in September 2017.

Dimensions

Length 102.2 m

Beam 13.8 m

Draft 3.7 m

Displacement, Light 1,600 tons

Displacement, Fully Loaded 2,090 tons

Propulsion System

Engine Name CODOG

Engine Type 2 x gas turbines (30,850 shp each); 1 x Type 61D diesel (8,000 bhp); 2 shafts.

Generator 3 x 380 V, 50 Hz a.c. diesel alternator sets

Genetor Power 1,800 kW total (3 x 600 kW each)

Maximum Range 950 nm at 27 knots; 3,500 nm at 14 knots; 4,000 nm at 10 knots; 5,000 nm at 10 knots.

Maximum Speed 27 knots

Endurance 15 days

Gun Weapon System #1

System

Name 1 x AK-176 76.2mm Naval Gun

Type Naval Gun

Caliber 76 mm

Length INA

Barrel Length INA

Height 2.6 m

Weight 16,800 kg

Crew 2 (4 in manual control mode)

Barrels 1 ea

Recoil 380 to 500 mm

Maximum Elevation +85 deg

Minimum Elevation -15 deg

Traverse Right 175 deg

Traverse Left 175 deg

Rate of Fire 120 rds/min

Muzzle Velocity 980 m/s

Maximum Firing Range 15.5 km

Effective Firing Range 10 km

Feed System 152 ready to fire rounds

Ammunition

Type Rifle

Caliber 76.2 mm

Cartridge INA

Shell Weight 12.4 kg

Basic Load INA

Gun Weapon System #2

System

Name 2 x AK-630 30mm CIWS

Type Close-in Weapon System (CIWS)

Caliber 30 mm

Main Armament 1 or 2 AO-18 autocannons

Secondary Armament 4 9A4172 missiles (Vikhr-K upgrade)

Barrel Length 1,629 mm (total) 1,460 mm (rifled)

Width 1,240 mm (mount ring)

Height 1,070 mm (above deck)

Weight 1,000 kg

Crew 1 ea

Action Gas-operated rotary cannon

Elevation +88° ... -12° (50°/sec)

Traverse ±180° (70°/sec)

Rate of Fire 4,000–5,000 rounds/min

Muzzle Velocity 880–900 m/s

Maximum Firing Range The projectiles self-destruct past 5,000 m.

Effective Firing Range 4,000 m (aerial); 5,000 m (maritime)

Feed System Belt: 2,000 rounds (additional 1,000 rounds in reserve feed bin.

Sights Radar / TV-optical

Ammunition

Type Rifle

Caliber 30 mm

Shell HEI-Frag, Frag-T

Shell Weight 0.39 kg

Basic Load INA

Missile Weapon Systems

Missile Weapon System #1

Name 8 x kh-35 Uran Anti-Ship Cruise Missile

Launcher 2 x quad Kh-35 Uran-E SSM Launchers. The Uran-E shipborne anti-ship missile (ASM) system is designed to destroy missile/torpedo/gun boats, surface ships displacing up to 5,000 tonnes, and seagoing transports.

Length 3.75 m

Diameter 420 mm

Wingspan 1.30 m

Weight 680 kg

Engine 1 x solid-fuel rocket booster with turbofan sustainer engine.

Guidance System inertial guidance; terminal active radar homing.

Warhead high-explosive; impact fuze

Range 130 km

Maximum Speed Mach 1

Basic Load 8 x kh-35 Uran Anti-Ship Cruise Missile.

Missile Weapon System #2

Name 20 x SA-N-4 Gecko Surface-to-Air (SAM) Missiles

Launcher 1 x twin-rail Osa-MA2 (SA-N-4 Gecko) SAM Launcher

Length 3.10 m

Diameter 210 mm

Wingspan 0.64 m

Weight 130 kg

Engine 1 x 2-stage, solid-fuel rocket

Warhead 18 kg high-explosive

Maximum Range 12.0 km

Minimum Range 1.6 km

Maximum Speed Mach 3

Altitude 12.2 m

Basic Load 20 x SA-N-4 Gecko Surface-to-Air (SAM) Missiles

ASW Weapon Systems

Torpedo Tube 2 x twin 533-mm

ASW Rocket Launcher 1 x 12-round RBU-6000 ASW rocket launcher

Rocket Name RBG-60

Basic Load 48 x RGB-60 Rockets carried

Mine System

Launcher 2 x mine rails

Basic Load 48 x mines carried

FIre Control System (FCS)

kh-35 Uran Anti-Ship Cruise Missile FCS 1 x Monolit (Band Stand) for SS-N-25

SA-N-4 Gecko Surface-to-Air (SAM) Missile FCS 1 x MPZ-301 Baza (Pop Group) SAM fire control

Target Designator 1 x Garpun-B SSM target designator

AK-630 CIWS FCS 2 x MR-123 Vympel (Bass Tilt) for 30mm gun

AK-176 Naval Gun FCS 1 x MR-123-02/76 Fire Control Radar System

Radar Systems

Air / Surface Radar 1 x MR-352 Pozitiv (Cross Dome**) air/surface search radar

Navigation Radar 1 x MR-312 Nayada navigation radar

Sonor Systems

Sonor Suite 1 x Zarnitsa suite

Hull Mounted Sonar 1 x Ox Yoke medium frequency, hull mounted sonar.

Variable Depth Sonar 1 x Ox Tail medium frequency, variable depth sonar.

Protection

Hull The hull is made of high-quality steel and the superstructure of seawater-resistant aluminum-magnesium alloy. The hull is partitioned into 10 watertight compartments. Tests show the ship can remain afloat with three midships and two adjacent bow or aft compartments flooded. It can also continue underway with any two adjacent compartments flooded. The hull is equipped with fin stabilizers and has twin rudders.

Countermeasures 1 x ASOR-11661 ECM Electronic Countermeasure System.

Decoy 4 x 16-round PK-16 fixed decoy rocket launchers

NBC Protection Yes

IFF 2 x Square Head and 1 x Salt Pot B

EW Intercept 2 x Bell Shroud intercept

EW Jammer 2 x Bell Squat jammers

Image Sources

Notes https://www.facebook.com/VietDefenseVN/photos/a.1256029977888515/1569045799920263/?type=3; https://commons.wikimedia.org/wiki/File:Caspian_Frigate_Tatarstan.jpg; https://navyrecognition.com/index.php/naval-news/naval-news-archive/2022/february/11450-vietnamese-frigate-quang-trung-joins-the-naval-exercise-milan-2022.html