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M-55 S Medium Tank [Upgrading of T-55]

The Russian, Polish and Slovak variants of T-55 are the most widely extended types of tanks in the world. At least 30,000 are still in use which makes this tank the most grateful subject for upgrading. Its combat capacities can be easily increased also up to 100%. Its robust construction and simple maintenance in a combination with upgrading provides an efficient and realiable combat vehicle which can handle the toughest tasks of modern comprehension of the use of armoured systems. As all mounted upgrading elements are of a modular design, to avoid additional alterations of a tank structure, they can be easily replaced with modern parts prolonging their life by at least ten to fifteen years, retaining the level typical for the second generation of tanks.

Many companies are now offering upgrade packages for the T-54/T-55. Many countries have carried out extensive modifications, including Egypt (105mm gun and new night vision equipment) and Israeli TI-67 (105mm gun, new fire-control system). Romania has upgraded many T-54 vehicles with side skirts, six road wheels and improved engine cooling. Some Iraqi T-54/T-55 MBTs have extra passive armor.

Slovenia has upgraded its T-55 MBTs to the M-55 S standard with new armor and 105mm gun. The M-55 S tank is a combat tracked vehicle characterized by reactive armour and powerful armament intended to destroy the adversarys live force, armoured and other combat vehicles, artillery, anti-tank missiles, bunkers, fortified facilities, obstacles and other fortification facilities.

Type of combat vehicle Medium tank
Crew 4
Armament 105mm gun, 7.62mm machine gun, 12mm machine gun
Cartrige 36 x 105 mm, 2800 x 7.62 mm, 250 x 12.7 mm
Lenght 2390 mm
Width (including lateral protection) 3500 mm
Height 2390 mm
Weight 38000 kg
Ground clearance 440 mm
Engine V 55, 580 KM
Maximum speed 50 km/h
Vertical obstacle 800 mm
Trench width 2,7 m
Fording Up to 1,4 m
Armour Reactive
Fire-protection system Yes
CBR protection Partial

Key elements of upgrade

  • increased fire power by installation of a grooved gun L7 105mm ,
  • thermal protection of a gun barrel .
  • increased combat characteristics by installation of a Fire Control System (FCS) allowing firing-on-the-move with accurate ballistics ,
  • modern fire control system, day&night vision laser system (I2)-EFCS3-M55 ,
  • commander's take-over system, day&night vision system (I2)-COMTOS ,
  • combined day&night driver's periscope (I2)-CODRIS .
  • increased level of protection with an explosive&reactive amour ,
  • warning system for laser and infra-red radiation ,
  • smoke grenade launcher, red phosphorus-based ,
  • fire control system in the combat and motor compartments .
  • installation of a new external communication system ,
  • a new internal communication system ,
  • external communication with tank commander.
  • M-55 Medium Tank M-55 Medium Tank M-55 Medium Tank M-55 Medium Tank

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    Page last modified: 16-11-2012 19:00:29 ZULU