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.
T-28
M-5-400
71-TK-3
T-28 cylindrical
76 mm KT-28
T-28A
M-17L 1,400 r/min
10R
T-28 conical
76 mm L-10
57 mm ZiS-8
M-17T
76 mm F-32
57 mm ZiS-4
Characteristics are specified for vehicles with crews trained to 100%.