PT-91 MAIN BATTLE TANK
The PT-91 is a crawler combat vehicle having a strong armament, good armour and reliability. It is provided with 125 mm smooth barrel main gun, 7,62 mm machine gun coaxial with main gun as well as anti-aircraft machine gun 12,7 mm. The tank has special equipment designed for protection of crew members and inner devices against a shock wave action and radioactive radiation. It has also high maneuverability in all climatic and terrain conditions.
To keep the required horsepower and speed, PT-91 is equipped with turbocharged 850 hp diesel engine. With upgraded transmission they can attain a maximum road speed of 60 km/h. However, for low speed maneuvering, the low gear provides a continuous speed up to 7 km/h. They still enjoy excellent cross country ability.
Their design creates the fording ability of water obstacles up to 5 meters depth using fording kit, however the water obstacle of 1,2 meters depth can be crossed without any preparation.
The PT-91 MBT is equpped with the Fire Control System consisting of Gunner Station. It basis on modernized TPDK-1 sight for day channel and optionally passive PCN-A sight or thermal imagine sight, which create night fighting capability. The fire solutions are calculated by the ballistic, digital computer which processes mixed set of information generated by set of sensors and input manually by the gunner.
The PT-91 MBT dual axis stabilized Fire Control System, with both Gunner and Commander stations is equipped with day and night vision capabilities, which, in conjunction with electro-hydraulic gun stabilization system, makes it capable of acquiring a target accurately within a minimum time
Gunner Station consists of 2 axis stabilized sight platform with thermal imaging and daylight visual imaging subsystems, laser range finder which permits the gunner to detect, identify, acquire and track a target during day and night combat conditions.
Commander Station consists of panoramic sight mounted on the turred roof which provides day vision and night imaging through 2 axis stabilized head mirror assembly with 3600 panoramic viewing independent of turret orientation. Combined with the GS, the CS provides the hunter-killer capability which allows the crew of PT-91 to acquire rapidly and destroy multiple targets. Additionally system allows commander to override gunners decisions.
The digital, ballistic computer provides solutions for 6 types of ammunitions, by processing information generated by up-to-date set of sensors or input by the gunner or commander.
The crew survivability was improved by the adoption of very effective ERA in major areas, which offers better protection against chemical energy projectiles.
With up-to-date Automatic Fire Suppression System any fire in the Crea Compartment is automatically detected by IR Detectors and suppressed by Halon 1301. The Engine Comparment is protected by separate, also automatically operating system which bases on Temperature Sensing Firewire and suppresses any fire with Halon 1211.
Newly added Laser Warning System provides information about laser beams of sights range finders and missiles guiding systems and reacts automatically firing smoke grenades from two, 6 launchers banks. The system can be overridden by the commander who can fire these grenades manually in personally selected sequences or use backing, manual system also consisting of two, 6 launchers banks.