PcKTr-56

The Páncél Katonai Traktor 56 tonna (PcKTr-56), (: Armoured Military Tractor, 56 tonnes) also known in Transkarpatian service as the T-66 is a main battle tank developed by Granzery.

Variants

 * PcKTr-56
 * 40 training vehicles for 1965–1966 with 585| engine


 * PcKTr-56S1A
 * Upgrade of PcKTr-56 to S2 standard, fitted with 650 hp engine


 * PcKTr-56S1B
 * Improved optical rangefinder model


 * PcKTr-56S2 Huszar mtz. 2
 * First active service model with 650 hp engine, 120mm main gun, NBC protection system fitted to rear of turret, revised turret stowage, one-piece commander's hatch cover, armour removed from searchlight cover, rigid flotation panels replaced by facility for deep wading.


 * PcKTr-56S3 Huszar mtz. 3
 * Improved 720 hp engine with two-stage air cleaner, improved auxiliary generator, better stowage, new commander's cupola, addition of laser rangefinder, engine induction and commanders firing control. Main service tank from introduction in 1971 through to 1980


 * PcKTr-56S4 Huszar mtz. 4
 * Increased fuel capacity


 * PcKTr-56S5 Huszar mtz. 5
 * Final production variant (in Granzerian service), 750 hp engine and upgraded NBC protection system


 * PcKTr-56S6 Huszar mtz. 6
 * Huszar 6 modified to allow use of APFSDS ammuntion with an improved Fire control system, second generation thermal sights and fitting of muzzle reference system.


 * PcKTr-56S7 Huszar mtz. 7
 * Huszar 7 upgraded with addition of generation 1 TEKNŐ Composite Armour packages to increase turret frontal protection introduced in 1984


 * Huszar 2000
 * Karpatlőszer introduced a new model incorporating generation 2 TEKNŐ Composite Armour on the turret and frontal hull and a 900 hp engine. 5 were originally produced by Karpatlőszer.


 * T-66MV
 * Transkarpatian modification of the Huszar 2000 fitted with the experimental 128mm smoothbore cannon.