T - 90 main battle tanks (English: T - 90 main battle tank [1], ru: ? - 90 ? ? ? ? kind guide ? ? ? ? ? ? kind guide ? ? ? ? ? seem [2]), was developed in the early 1990 s the Soviet/Russian type of the third generation battle tanks.The body of the T-90 main battle tank is improved based on the T-72 main battle tank. The turret of the early type tank is similar to the cast turret of the T-72, and the turret of the later type tank is a redesigned welded turret. The fire control system of the early version of the tank used the fire control system of the T-80U (Russian: T-80Y) tank. The tank was equipped with a 125mm self-loading smooth gun capable of firing ordinary shells and gun-fired missiles. It was equipped with the "Curtain" -1 photoelectric jamming system and v-84MSV diesel engine.Since 1990, t-90 main battle tank has been trial-produced and equipped with the Russian Army in small batches. Since then, it has been continuously improved. There are two main improved models t-90E