The T-28 tank with the 85-mm F-30 gun was developed in 1941. One prototype was built and underwent trials. Unlike mass-produced T-28 tanks, the vehicle featured different armament. No sources were found proving that the tank was mass-produced or used in action.
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Time for the successive autoreloading of each shell into the magazine
The improved system allows the time to be decreased for autoreloading the next shell upon firing the loaded shell when the corresponding indicator is displayed
Characteristics are specified for Siege mode.
The technical characteristics are displayed for the charged turbine mode.
Characteristics are specified for Rapid mode.
Reload time of the first and second guns on double-barreled vehicles
Time to repair a damaged main/reserve track
Characteristics are specified for vehicles with crews trained to 100%.