Based on T62 hull It entered Soviet Army service in 1968 Main armament antitank missile 2К4 Drakon , penetration is 500 mm (90 ), maximum range of 3300m (10001500m at night) Secondary armament 7, 62mm PKT machine gun Weight 34. 5 tonnes Length 6630mm Width 3300mm Height 2200mm Armor turret front 206mm Armor hull front 100mm Crew 3