Thread:Defender7881/@comment-30076690-20181021221050/@comment-34517845-20181022190131

''The T-28 tank was developed by the Experimental Machine Design Bureau of the Voroshilov plant. The vehicle saw service on August 11, 1933. A total of 503 tanks were manufactured at the Leningrad Kirov Plant between 1933 and 1940. During mass production, the T-28 tank underwent a number of changes in design and modifications. The vehicles were used in the war with Finland in the winter of 1939–1940 and at the beginning of WWII.''

There are 4(?) parts of the T28 heavy tank

''The development of this heavy breakthrough tank began in September 1943. It was planned to utilize certain components of the M6 tank as well as the electromechanical transmission and 105-mm T5 gun, mounted in a turret of limited traverse with 203-mm armor protection. The vehicle was intended to assault the fortifications of the German "Siegfried Line" (known as the "Westwall" to the Germans). The U.S. land forces rejected the project during the design phase. The vehicle was later modified into the T95 heavy breakthrough tank. (T28 concept)''

''Early prototype of a heavy tank designed for breaking through fortifications of the German Siegfried Line. Existed only in blueprints, prepared under the program for developing heavy vehicles that was initiated in September 1943. (T28 prototype)''

''The development of a superheavy vehicle with enhanced armor started in the second half of 1943. The design featured the power unit and electrical transmission of the experimental T23 medium tank. The vehicle was supposed to feature a new 105-mm anti-aircraft gun. The design was later used for the creation of the T95 assault tank. Existed only in blueprints.​​​​​​​ (T28)''

''Development of this vehicle started in 1943, with 25 vehicles planned for production within a year. Two prototypes passed trials, but never saw action. (T95)''