Modern Russian tanks are well known for superb mobility and a distinctive, low silhouette, offering as small a target as possible on the battlefield. In the late 1960s, the highly sophisticated T64 tanks was produced to replace the Soviets T62 main battle tank. The T64 had the advanced feature of automatic canon loading, that eliminated the requirement for a loader, reducing the crew from four men to three. The T64 tank; however, proved to be unreliable due to its complicated mechanics, and this led to the development of the T72 tank. The T72, despite its close external resemblance to the T64, was created in an attempt to simplify the overall design; improve its maintennce capability; and to also enhance productivity ... text from Tamiya leaflet.