Basic Information

Name

Ivan Green Class (Project 11711 Class) Russian Landing Ship

Designation

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Alternate Designation

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Equipment Type

Landing Ship Dock (LSD)

Manufacturer

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Date of Introduction

2015

Description

The Ivan Gren class, Russian designation Project 11711, is a class of landing ships that is being built for the Russian Navy. The class was to be composed of two vessels, Ivan Gren and Pyotr Morgunov, but later it was announced that the Russian Navy intends to acquire several more vessels of a modified design. The vessels of the class have a displacement of 5,000–6,000 tons and are able to carry up to 13 main battle tanks or 36 armored personnel carriers and 300 marines. The first ship of the class, Ivan Gren, was laid down on 23 December 2004. The hull of Ivan Gren was completed by the end of November 2010. On 9 October 2010, a contract to increase work on the vessel was signed. The ship was launched on 18 May 2012 and was scheduled to be delivered to the Russian Navy by 2014. Delivery of Ivan Gren was delayed until 2015 while the second ship of the class, Pyotr Morgunov, was laid down in October 2014. Ivan Gren started its sea trials in June 2016 in the Baltic Sea. According to Russian sources, the delay in the commissioning of the lead ship was due to several design faults that include hull stability and engine problems. On 3 May 2018, the lead ship of the class, Ivan Gren, successfully completed its sea trials held in the Baltic Sea. The warship's systems and complexes were checked by the state acceptance commission of Russia's Defense Ministry. Ivan Gren was accepted into service on 20 June 2018. Initially, there were no plans to build more ships following Pyotr Morgunov. However, in December 2018, it was reported by the head of Russia's United Shipbuilding Corporation that Russia plans to order additional two or three modified Ivan Gren-class landing ships. On 9 April 2019, Russian Defence Minister Sergey Shoygu announced two more Project 11711 landing ships will be laid down on 23 April 2019. On 23 April 2019, two modified Project 11711 landing ships, Vladimir Andreev and Vasily Trushin, were laid down during a ceremony at the Yantar Shipyard in Kaliningrad. The two new ships differ with the modified superstructure, increased displacement to 7000-8000 tons, and capability to carry the Kamov Ka-52K carrier-based attack helicopters. Their delivery to the Russian Navy is scheduled for 2023 and 2024, respectively.

Ground Specifications

Crew 100

Engine Diesel (3700 hp)

Range 3500.0 km

Variants

Ivan Gren Commissioned: 2018 Status: Active Fleet: Northern

Pyotr Morgunov Commissioned: 2020 Status: Active Fleet: Northern

Vladimir Andreyev Commissioned: 2023 Status: Under Construction Fleet: Northern

Vasily Trushin Commissioned: 2024 Status: Pacific Fleet: Under Construction

System

Alternative Designations Ivan Green Class; Project 11711 Class

Type Landing Ship

Builders Yantar Shipyard, Kaliningrad

Crew 100 ea

Cargo Capacity 13 x main battle tanks, 40 x BTR or IFV and 300 troops

Aviation Facilities Hangar for 2 Ka-27 ASW or Ka-29 transport-attack helicopters

Note To perform over-the-beach assault the ship uses the bow doors with internal ramp to disembark vehicles. Also there is a rear ramp which is used by onboard fast landing craft. A total of 2 or 3 landing craft are carried by the ship.

Dimensions

Length 120 m

Beam 16 m

Draft 3.6 m

Displacement 6,600 tons full load

Automotive

Engine Name 2 x DRRA-3700

Engine Type Diesel

Engine Power Each engine develops a power output of 3,700kW

Bow Thruster 1 x PU100FM Bow Thruster

Generators 2 x ADG-1000NK diesel-generators

Maximum Range 3,500 nmi (6,500 km) at 16 knots (30 km/h)

Maximum Speed 18 knots (33 km/h)

Endurance 30 days

Main Gun System

Weapon Station #1

Name 1 x AK-630M-2 Gun

Type fully automatic naval close-in weapon system based on a six-barreled 30 mm rotary cannon.

Caliber 30 mm

Quantity 1 ea

Barrel Length 1,629 mm (64 in) (total) 1,460 mm (57 in) (rifled)

Width 1,240 mm (49 in) (mount ring)

Height 1,070 mm (42 in) (above deck) 2,050 mm (81 in) (below deck

Weight Gun mount: 1,000 kg (2,200 lb) (AK-630) 1,800 kg (4,000 lb) (AK-630M) 2,500 kg (5,500 lb) (AK-630M-2) External nodes: 800 kg (1,800 lb) (AK-630) 2000 rounds in belt: 1,918 kg (4,228 lb) Fire control system: (Vympel MR-123) (Vympel-A MR-123/176) 5.2 tonnes (5.7 short tons) (Vympel-AM MR-123-02/MR-123-03 and Vympel-AME MR-123-02/176) 1 tonne (2,200 lb) (Laska 5P-10E)

Crew 1 ea

Action Gas-operated rotary cannon

Elevation +88° ... -12° (50°/sec) +90° ... -25° (60°/sec) AK-630M-2

Traverse ±180° (70°/sec) ±180° (80°/sec) AK-630M-2

Rate of Fire 4,000–5,000 rounds/min

Muzzle Velocity 880–900 m/s

Feed System Belt: 2,000 rounds (additional 1,000 rounds in reserve feed bin, AK-630M) 4,000 rounds (AK-630M1-2)

Effective Firing Range 4,000 m (13,000 ft) (aerial) 5,000 m (16,000 ft) (maritime)

Sights Radar / TV-optical

Note AK-630M-2 Gun n 1983, a decision was made to update the design and modify the AK-630 system to include a second gun mounted above the first, which provides 10,000 rpm in total. The AK-630M1-2 "Roy" was roughly the same size and weight allowing installation in existing AK-630 mounts. Though the system proved to be successful, the AK-630M1-2 Roy was not accepted for production due to the maturity of a combined missile and gun system, then designated the 3M87 Kortik, but later called Kashtan. The single example of AK-630M1-2 Roy remains installed on the Project 206.6 class missile boat # P-44. In July 2007 at IMDS-2007, a modernized version of the AK-630M1-2 was showcased by OAO AK Tulamashzavod under the new name "Duet". Visually "Duet" differs from "Roy" in having a new mount with a stealthy low RCS design compared with the more traditional rounded AK-630 mounts. In 2012 it was announced that the new Ivan Gren-class landing ship would be armed with the modified AK-630M-2 system. It is also used by the Buyan-M-class missile corvette.

Weapon Station #1 Ammunition

Shell HEI-Frag, Frag-T

Caliber 30 mm

Shell Weight 0.39 kg

Basic Load 3,000

Weapon Station #2

Name 2 x AK-630 30mm Naval Gun

Type Fully automatic naval close-in weapon system based on a six-barreled 30 mm rotary cannon.

Caliber 30 mm

Main Armament 1 or 2 AO-18 autocannons

Secondary Armament 4 x 9A4172 missiles

Crew 1 ea

Barrel Length 1,629 mm

Width 1,240 mm

Height 1,070 mm

Weight 1,000 kg

Barrels 6 ea

Action Gas-operated rotary cannon

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

Weapon Station #2 Ammunition

Type HEI-Frag, Frag-T

Caliber 30 mm

Shell Weight 0.39 kg

Basic Load INA

Weapon Station #3

Name 1 x KPV Heavy Machine Gun

Type Heavy Machine Gun

Caliber 14.5 mm

Length 1,980 mm

Barrel Length 1,346 mm

Width 162 mm

Height 225 mm

Weight 49 kg

Action Short recoil operation

Rate of Fire 600 rpm

Muzzle Velocity 1,005 m/s

Effective Firing Range 3,000 m

Maximum Firing Range 4,000 m

Feed System 40-round belt

Sights iron or optical

Weapon Station #3 Ammunition

Type Rifle

Caliber 14.5 mm

Cartridge 14.5×114 mm

Basic Load INA

Fire Control Station and Radar System

FCS Name 1 x MR-123 Vympel (NATO: Bass Tilt) fire

Navigation Radar INA

Protection

Hull Armor INA

NBC Washdown Yes

Chaff 2 x PK-10 chaff-rocket launchers

Image Sources

Notes https://en.wikipedia.org/wiki/Ivan_Gren-class_landing_ship; https://www.naval-technology.com/projects/project-11711-ivan-gren-class-landing-ships/; https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/2019/april/7013-russia-will-commission-a-project-11711-large-landing-ship-by-the-end-of-2019.html;