By pulling off the armored access panels at the back of the FHC’s T-34/85 tank, mechanics have revealed the vehicle’s burly transmission and the aft part of its diesel engine. The Kharkiv model V-2 engine was designed at the Kharkiv Locomotive Factory in the Ukraine. The monster V-12 (you can see its circular cooling fan behind the transmission) produces about 500 horsepower. Versions of the engine were not only used in the massively successful T-34, but also in many other big Soviet tanks of the era.