Russia’s Koalitsia-SV (Coalition-SV) self propelled artillery system (SPA)

The 2S35 Koalitsiya-SV (coalition) is a new Russian self-propelled howitzer. It is a successor to the 2S19 Msta-S. It is also intended to replace ageing Russian 152-mm artillery systems. Currently it is one of the most capable howitzers in the world.

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The first demonstrator was completed in 2006. This unique self-propelled howitzer had two 152-mm guns. It used a number of components from the previous 2S19 Msta-S. The twin-barrel Koalitsiya-SV demonstrator had a higher rate of fire than current artillery systems. It could fire at around 16 rounds per minute.

Twin-barrel Koalitsiya-SV demonstrator

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Even though the Koalitsiya-SV resembles the older 2S19 Msta-S, it is a totally different system. It has unmanned turret and is armed with a 152-mm gun. It has a fully automated ammunition loading and handling system. It utilizes a modular charge system. This artillery system can fire a wide range of munitions, including standard and rocket-assisted HE-FRAG projectiles, cluster projectiles with anti-tank submunitions, jammer carrying projectiles. Range of fire with standard projectile is around 30 km and around 40 km with rocket-assisted projectile.

The system of modular charges for the 152-mm self-propelled artillery system “Coalition”

At the last International Military Technical Forum “Army-2017″ the Main Missile and Artillery Directorate of the Ministry of Defense of the Russian Federation presented, among other things, information about the system of modular propellant charges created as part of the development of a set of main-round shots for the prospective inter-service 152 mm artillery complex ” Coalition “(OKR” Coalition-BP “, developer of JSC” Scientific Research Machine Building Institute named after VV Bakhirev “, Moscow). Image from the presentation poster of the Main Missile and Artillery Directorate of the Ministry of Defense of the Russian Federation in the exposition of the International Military Technical Forum “Army-2017” (с) Decoder / otvaga2004.mybb.ru

Also in the exposure of the international military-technical forum “Army 2017” it was presented created within the same OCD “Coalition-BP” 152-mm mortar shell with a concrete-3G4. The shot is designed to defeat the field fortification and other defensive structures, infrastructure facilities and the rear. It is used for firing from the 152-mm self-propelled howitzer 2S35 “Coalition-SV”.

Composition shot 

– shell 3G4 

– bottom fuze 

– complete variable modular propelling charge 4-W-27 

– elektroudarnaya tube TV-3-energy data (3KV9) 

Description 

Shot consists of 3G4 with the projectile fuze screwed bottom, complete variable modular propellant charge 4-Z- 27 and an electric shock tube. Before screwing the fuse, the point is closed by a blank stopper. 

Shell 3G4 consists of a body with a floating copper lead band, a ballistic tip, a bursting charge, a screw bottom and a threaded ring.

The shell of the shell is steel, with a solid head. The ballistic tip is fixed to the body by means of a thread. At the bottom of the body is a chambers, in which a discontinuous charge is placed. The rupture charge is closed by a screwed bottom, on top of which the threaded ring is screwed. Between the screw bottom and the body is embedded a lead gasket, designed to protect the explosive charge from the effects of powder gases. 

A bottom fuse is screwed into the threaded point of the screwed bottom. Between the flange of the fuse and the screwed bottom is also put a lead gasket.

152-mm concrete projectile 3G4, created within the framework of the OC “Coalition-BP” in the exposition of the International Military Technical Forum “Army-2017” (c) soviet-ammo.ucoz.ru Source: bmpd.livejournal.com

2S35 Koalitsiya-SV SPG Firing declassified footage

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A new long-range precision-guided round has been developed in Russia. It has a maximum range of 70 km and high level of accuracy. The Koalitsiya-SV It is also capable of firing older Krasnopol precision guided munitions with a range of 20 km.

2K25_Krasnopol-M_schThe Krasnopol total package. The ammunition (1), the firing unit (2), the guided projectile (3) in flight, the target (4) and the laser emitter (5) and designator. (Source: Military Analysis)

For export customers the 2S35 Koalitsiya-SV can be fitted with a 155-mm gun, compatible with standard NATO ammunition.

Maximum rate of fire is around 8 rounds per minute. It seems that the Koalitsiya-SV is capable of multiple round simultaneous impact firing.

This artillery system carries impressive onboard ammunition supply of around 60 to 70 rounds. It has a separate ammunition reloading system at the rear of the turret that allows to load ammunition from resupply truck.

The Koalitsiya-SV has an automatic targeting and charge selection system.

Vehicle has a remotely controlled weapon station, armed with a 12.7-mm machine gun. It can be used for self-defense against air and ground targets.

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The Koalitsiya-SV has a high level of automation. It allowed to reduce the crew. This artillery system is operated by a crew of only three men, including commander gunner and driver. Crewmembers are located in a well protected compartment at the front of the hull.

Armor of this vehicle protects the crew against small arms fire and artillery shell splinters. Vehicle is also fitted with NBC protection and automatic fire suppression systems.

The Koalitsiya-SV uses new tracked chassis. It uses components of the T-90 main battle tank. General layout of the chassis resembles that of the T-90, but the front is heavily modified to accommodate the crew. It is likely to be powered by a turbocharged diesel engine, developing around 1 000 hp.

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Vehicle has a built-in self-entrenching blade and can dig itself a trench within 12-40 minutes, depending on the ground type.

It was planed that a wheeled version of this artillery chassis, based on a 8×8 high mobility truck, would be developed.

armyrecognition.com

In 2013, a project of wheeled self-propelled howitzer using the same turret and armament as the Koalitsiya-SV was presented during the Russia Expo Arms defense exhibition. A drawing of the project was unveiled, showing an 8×8 KamAz truck chassis fitted with a turret and armed with one 152mm cannon. According, KamAZ spokesman Oleg Afanasyev, the new howitzer will be based on the four-axle KamAZ-6560 truck. The new howitzer will reportedly be fully automatic, meaning that the crew will remain in the armoured cab for the loading and firing sequence.” @armyrecognition.com

Ammo truck with loading mechanism

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Entered service 2015
Crew 3 men
Dimensions and weight
Weight ~ 55 t
Length (gun forward) ?
Hull length ?
Width ?
Height ?
Armament
Main gun 152-mm howitzer
Barrel length ~ 52 calibers
Machine guns 1 x 12.7-mm
Projectile weight ~ 43 kg
Maximum firing range 30 ~ 40 km
Maximum rate of fire ~ 8 rpm
Elevation range ?
Traverse range 360 degrees
Ammunition load
Main gun 60 ~ 70 rounds
Machine guns ?
Mobility
Engine diesel
Engine power ~ 1 000 hp
Maximum road speed ~ 60 km/h
Range ~ 500 km
Maneuverability
Gradient 60%
Side slope 30%
Vertical step ~ 0.8 m
Trench ~ 2.8 m
Fording ~ 1.2 m

Source: Military Today

Updated Sep 04, 2017

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Video:

САУ 2С19 «Мста-С» • The 2S19 «Msta-S» self-propelled artillery:

SPG 2S35 “Coalition SV” double-barreled artillery:

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