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Object 478
Object 478 ((ロシア語:Объект 478)) was a Soviet main battle tank prototype. It was developed by the KMDB of the Malyshev Factory and never put into full production.
== Development history ==
After the adoption of the T-80 tank, the Soviets started on improving its design. The work was done by two design bureaus; the KMDB of Malyshev Plant designed the "Object 478" prototype, and the design office of the LKZ designed the "Object 219" prototype. The Kharkov version of the modernized T-80 chassis involved equipping Object 219 with a 6TD-1 1000 horsepower diesel engine as well as installing a new combat compartment being developed for the modernization of the T-64A under the designation of Object 476. In 1976, this project was carried out on the machine, but further work on it was not continued as the main focus at the time was on the gas turbine engine. After the death of Ustinov, the strength of the design bureau of the LKZ began to weaken and the Ministry of Defense started to think seriously about equipping the T-80 tanks with diesel engines. The chassis of the T-64A was completely exhausted of its potential for modernization, so any further development was impossible. Work on equipping the T-80 tanks with diesel engines was carried out by several design offices. The Omsk Transport Engineering Design Bureau was tasked to equip the T-80 with the B-46-6 engine (this tank received the designation "Object 644"). KB-3 of the LKZ was also tasked to equip the T-80 with the 2B-16-2 engine, but both projects failed. At the same time, work was intensified on the creation of the Object 478 tank. In 1985, work began on the Object 478B. It was subsequently adopted into service under the name T-80UD.〔(Опытный основной боевой танк «объект 478» )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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