By the mid-twentieth-century world tank manufacturing firmly entrenched layout drawing of the tank, recognized traditional, in which the crew of the combat vehicle, (usually 4 or 5 persons) located in hulls, and in the tower. It would seem that there is nothing new in this scheme is proposed will not, it is comfortable and functional, tried and tested in the most languid combat criteria and well-established themselves. Yet, design idea was moving towards a candidacy this scheme, one such attempt to change deep-rooted ideology, was an attempt to Russian engineers, undertaken before the collapse of the Soviet Union. Unfortunately, information about the progress of the work has not been made public, it is not very much, you can even say that the secret project has led to the fact that this unique machine is actually nothing is clear except for some very general and superficial information.
First, the 80-ies of the last century Russian engineers — tank builders, a draft of the new tank known as the "tank Hammer" or "object 477." In some sources mention another of his title, "rebel" or "Boxer." In its development, except Kharkov Design Bureau, as well participated KB Leningrad and Nizhny Tagil. According to the plan of designers is to be completely brand new machine, with extraordinary mounting as different from the traditional assembly of tanks, first because the crew was located in the vehicle hulls, while the tank is installed on the tower was inhabited. The main innovation of this machine was, the portable instrument and a unique system to recharge it, which according to the calculations of designers allowed to increment its rate to 14 shots per minute. It is clear that the loading module in the form of a rotating drum, could accommodate a 10-shot, and the delivery of fire, if necessary, could be replenished from the 2-yi, additional placed on the sides of modules, as well as a rotating drum, any of which may contain the themselves on 16 shots. Loading ammunition into the car with that of the scheme was to be implemented by changing the used modules, which can significantly reduce the time allowed for replenishment of ammunition. But the design of the automatic charging tank gun was complex and achieved significant improvement.
First experienced the standards of the machines were made only in the late 80s and represented only the hulls of the coming of the tank. With the beginning of perestroika in the Soviet Union, and then the chaos in all sectors of the economy has slowed progress of the project, but he was not stopped. It was only in the late 90's designers were able to bring project terminates in phase and prepare the vehicle for production. As a tool for tank according to some reports planned to install a 152 mm tank gun. Aiming was done through NTVS (low-level TV system) as well as multi-channel sight "Argus". In addition to everything else on the turret of a tank was located bortovik radar attached to the machine, allowing the crew to see the situation on the battlefield and the technical condition of the tank. All information displayed on the computer screen. The unit was a diesel engine 6TD tank with a capacity of 1500 hp which is planned for the coming change to a more powerful 6TD-3. The design speed of movement on the hard ground was 75 km per hour, cross-country more than 50 km per hour. Tank intended to equip the new combined, multilayer armor, and items hanging dynamic protection. For the creation of radio and electrical interference and reduce vulnerability to anti-tank guided missiles (ATGM) tank had to be equipped with complex electrical oppression "blind." Weight of the machine, as well bank, had to be less than 50 tons. The crew consisted of three persons (the tank commander, gunner and driver mechanic), the entire crew, as mentioned above, was located in the vehicle hulls.
But, according to the views of some professionals, the layout scheme "Object 477" is a dead-end, the main reason for this, they are in the wrong location behold the crew and ammunition. At a penetration of armor plate, the appearance of fire or detonation of ammunition, crew the tank has no chance of escape, because located in the affected area. It is not clear what would have been the fate of the tank, whether it is adopted for the Russian army, of course, the creation of this machine has remained in history as one of the tank-building projects aimed at finding new skills and the creation of an attempt to conceptually new tank. Maybe in the near future we will be able to behold the development of "Object 477" in one of the new models of the Russian tank development.