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Home > Tanks > T-84
modified: Nov 10, 2012
T-84 is a Ukrainian main battle tank. It was developed by the Kharkov Morozov Design Bureau based on the T-80UD. Production is undertaken by the Malyshev Plant. It is thought that some of the T-80UD tanks Pakistan ordered from Ukraine incorporate some T-84 components.

The driver is seated in the front, the turret in the center, and the engine compartment in the rear. In the turret, the gunner is placed on the left while the commander is located on the right. Both the gunner and commander are provided with a roof hatch.

The driver is provided with a single-piece hatch cover and three day periscopes for forward observation. The center one can be replaced by a passive periscope for driving at night.

The 125mm KBA-3 smoothbore gun has a thermal sleeve, fume extractor, and automatic loader. It can fire six different types of ammunition which are APFSDS, HE-FRAG, HEAT, laser-guided missiles, and two types of HE with a timed fuze. It takes between 7 and 12.5 seconds to load a new projectile, charge and return the gun to the firing position.

The hull front and turret front and sides are fitted with explosive reactive armor. The turret consists of multiple layers of steel and non-metallic armor with six layers on the front and five on the sides. The tank is equipped with the Shtora-1 active protection system.

Ukraine has developed its own laser-guided missile for use with the T-80UD/T-84. It is called Combat and entered production in 1999. The Combat missile is fitted with a tandem HEAT warhead to destroy targets fitted with ERA.

A 7.62mm PKT machine gun is mounted coaxially with the main gun. The commander operates a 12.7mm anti-aircraft machine gun.

Six electrically operated 81mm smoke grenade launchers are mounted on either side of the turret and provided with a cowl. The T-84 can also lay a smoke screen by injecting fuel into the exhaust.

T-84 has the 1A45 fire-control system. Both the commander and gunner can lay the main gun while the tank is stationary or moving with a high first round hit probability.

The commander has a TKN-4S Agat day/night vertically stabilized sight. The gunner has an IG46 Irtysh two-plane day sight that also incorporates a laser rangefinder and a missile guidance capability. The gunner's Buran-E night sight is stabilized in the vertical plane only.

The fire-control system takes into account sensor inputs such as tank and target speed, cant, windspeed, ambient temperature, projectile and charge temperature, and barrel wear. It also computes the time when the HE projectile with controlled detonation should be detonated over the target. The ballistic computer is designated the 1V528 while the gun stabilization system is designated the 2E42.

The T-84 is powered by a 1,200hp 6TD-2 diesel engine coupled to a mechanical transmission. An APU is mounted at the rear of the hull on the left side.

A 1,500hp version of the engine is being developed under the designation 6TD-3. It features intermediate cooling of the supercharged air and thermal protection of the engine compartment.

The air filtration system consists of centrifugal pre-cleaners and the air-cleaner casing. It allows the tank to be operated in hot and dusty conditions for up to 1,000km without replacing filters and to operate under radioactive conditions.

The upper part of the suspension is covered by a skirt, the forward part of which is armored. A rubber mat hangs at the front of the vehicle to keep down dust.

A dozer blade is mounted under the front of the hull. Various types of mineclearing systems including the KMT-6 can be attached at the front of the hull. An unditching beam and two long-range fuel tanks are mounted at the hull rear. Air conditioning is offered for the export market.

T-84U is an improved version of the T-84 marketed starting in 1999. It has improved ERA, new R-163-50K radio, 1V528-2 ballistic computer, new 1 KRNA land navigation system, new APU, and a command and control system installed. Two types of track can be fitted on the T-84U. One type of track is fitted with non-removable rubber pads from both sides of the track links for road use. The other type is a multipurpose track with replaceable rubber pads and removable metal grousers that provide improved traction in poor soil.

The 1 KRNA land navigation system is of the satellite radio navigation type and based on the GPS NAVSTAR and GLONASS system.

The T-84U can be fitted with additional side screens, camouflage net, and dazzle painting. The pain also provides a lower level of reflection of laser and IR irradiation.

The auxiliary diesel electric power unit has an output of 8kW and has sufficient fuel for 24 hours of continuous operations.

T-84-120 Oplot
T-84-120 Oplot is a version of the T-84 armed with a NATO standard 120mm smoothbore gun. The gun is fully stabilized in two axis and fitted with a fume extractor, thermal sleeve, and muzzle reference system. The gun barrel can be changed under field conditions without the need to remove the complete gun from the tank.

The bustle mounted automatic loader is separated from the turret by armored bulkheads with blow out panels in the roof of the turret.

The T-84-120 has a new turret of all welded armor construction. ERA is provided over the hull and turret.

A Vehicle Movement Control System is fitted which ensures control of the engine operation modes and automated gear shifting in order to reduce fuel consumption and driver fatigue. It also controls engine starting modes and displays current information about the power pack operation mode.

Other variants
BTMP-84 is a heavy IFV prototype based on the T-84. It was built by the Kharkov Morozov Machine Building Design Bureau.

BREM-84 is an armored recovery vehicle based on the T-84 chassis.

References: JAA5, JTCV
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