M-84 Main Battle Tank

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M-84 Main Battle Tank
The M-84 is a Yugoslav 2nd generation main battle tank. The M-84 is in service in Bosnia and Herzegovina, Croatia, Kuwait, Slovenia and Serbia. The M-84 is based on the Soviet T-72 but with several improvements, including: a domestic fire-control system, improved composite armor, and a 1000-hp engine. The M-84 entered service with the Yugoslav People's Army in 1984. The improved M-84A version entered service a few years later.

In the late 1980s, a project for a replacement tank called the M-91 Vihor (Whirlwind) was started. Unlike the M-84, the Vihor was not a copy of a Soviet tank, but a new design from scratch. Two prototypes were created by 1991. One was completely finished, but factory refused to deliver it to Yugoslav People's Army. Second prototype's had body completed. However, due to the disintegration of Yugoslavia, the Vihor project was paused until end of civil war in Croatia. After 1994. The second tank body was fitted with a new turret and entire project was renamed as Croatian battle tank M-95 Degman. M-95 Degman is still in prototype phase.

Croatia also created upgrade package M-84D, which is a Degman standard upgrade package for M-84 tanks. Croatian army planned to upgrade all 75 Croatian M-84 tanks to this M-84D revision, but due to economy crisis, upgrade was postponed.

The latest Serbian version of the M-84 is the M-84AS, unveiled in 2004. It features a new fire control system, Kontakt-5 ERA armor, AT-11 Sniper anti-tank missiles, Agava-2 thermal sight, and the Shtora defensive suite. It is very similar to the Russian T-90S, both in appearance and in capability.

About 150 M-84 tanks were exported to Kuwait. The disintegration of Yugoslavia in the 1990s prevented further exports of the M-84. ASELSAN of Turkey was selected by Kuwait to modernize their M-84s.

M-84 MBT
Type Main battle tank
Place of origin Yugoslavia
Service history
In service 1985 – present
Used by Bosnia and Herzegovina, Croatia, Kuwait, Serbia, Slovenia
Wars Gulf War
Yugoslav wars
Production history
Designed 1979 - 1983
Produced 1984 - 1991
Number built 652
Specifications
Weight 41.5 tonnes
Length 9.53 m
Width 3.57 m
Height 2.19 m
Crew 3 (commander, gunner, driver)

Armor 5 lance grenades fumigating, composite alloy; including high-hardness steel, tungsten and plastic filler with ceramic component.
Main
armament
125mm 2A46 smoothbore gun
Secondary
armament
7.62mm coaxial machine gun, 12.7mm anti-aircraft gun
Engine diesel V-46TK
1,000 hp (750 kW)
Power/weight 24.10 hp/tonne
Suspension torsion bar
Fuel capacity 1200 + 400l
Operational
range
700 km
Speed 68 km/h

M 84 Armament

The M-84A is armed with a 2A46 125 mm smooth bore cannon. The gas cylinder positioned in the middle of the barrel is shielded with a thermal coating that minimizes deformation of the barrel from high temperatures and ensures it is cooled at the same rate during rapid firing. The M84 uses an automatic loader, which enables it to sustain a firing rate of 8 rounds per minute.

The cannon's ammunition is stowed underneath the turret (40 rounds) within the hull of the tank. This concept was inherited from the original Soviet design for T-72 and is arguably the tank's greatest flaw. While it enables fast rates of fire, it also makes the M-84 vulnerable. This weakness was exploited by Croatian soldiers in the Croatian War of Independence to the detriment of the YPA's tank crews. In later stages of the conflict, losses were reduced by adjusting and improving tactics.

Along with its primary armament, the M-84 is also armed with one 7.62mm coaxial machine gun, and one 12.7mm anti-aircraft gun mounted on the commander's turret.

All versions of the M-84 have a crew of three. The commander sits on the right side of the turret, the gunner on the left, and the driver sits centrally at the front end of the vehicle. Like most Soviet derived vehicles, the M-84 series of tanks do not have a manual loader, due to the tank's autoloader system.

M 84 Protection

The armour of the M-84AS tank consists of cylindrical pad, high-hardness steel, titanium, tungsten, aluminium as well as modular Kontakt-5 reactive armour plates. Croatian M-95 Degman versions use improved armor protection with four layers of titanium, two layers of tungsten and three layers of ceramic armor giving protection of 592 mm against HEAT, APSF and Chemical attacks. In addition to this, the Degman is extensively covered with explosive reactive armour plating.

Twelve smoke grenades are positioned in front of the turret in banks of five and seven grenades. Thermal imaging and infrared guidance are positioned on the top-right side of the turret. The M-84 has a search light used in short-range combat situations.

The M-84 tank has nuclear, biological and chemical (NBC) protection capabilities.

M 84 Mobility

The base M-84 engine is a 12-cylinder water-cooled V46-6 diesel engine, rated at 574 kW. The improved M-84A has a more powerful, V46-TK 735 kW (1,000 hp) engine. With maximum fuel capacity (1,200 litres) the tank's range is 450 km, and with external fuel tanks, this range can be extended to 650 km.

The Croatian-made variants have enhanced power plants. The M-84A4 Sniper model has a German-built 820 kW (1,100 hp) engine, while the M-95 Degman has a 895 kW (1,200 hp) engine, the most powerful of all M-84 variants. The Degman also has greater fuel capacity (1,450 litres).

The tank can ford 1.2 meters of water at any time, or up to 5 meters with a proper snorkel applied.


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