The latest T-84, the BM Oplot. Although it has a large exhaust port that would indicate a turbine engine, it actually has a complicated turbo-supercharged 6-cylinder ‘double-stroke’ piston (meaning each cylinder actually has two pistons) engine.
This tank is called by several names, it was developed for militaries that use the NATO 120mm ammo originally developed for the 120mm Reinmetall gun. It is known as Yatagan, KERN2-120, or T-84-120.
This MorozovKMDB promo video is called Oplot, but it shows the T-84 and the Yatagan. The visual difference is that the Yatagan’s turret extends over the engine deck:
Ukrainian Ministry of Defence video from 2014 showing Oplot and Bulat:
T-80UD.
Self-entrenching tool in use.
The upgraded/up-armored T-64 known as BM Bulat, looks very much like the T-80UD. The visual give-aways are the position of the smoke grenade launchers, and the type of roadwheels .
T-64B at the International Peacekeeping and Security Center, Ukraine, 11APR2019.
An old T-64, International Peacekeeping and Security Center, Ukraine, 07DEC2018.
T-80BV at the International Peacekeeping and Security Center, Ukraine, during Canadian sponsored Operation Unifier, 29NOV2018.
Ukraine’s 36th Naval Infantry Battalion Tactical Group conduct a night-shoot, 25OCT2018.
T-84s at the Strong Europe Tank Challenge at the Grafenwoehr Training Area, Germany, May-June 2018.
Size comparison, T-84 versus Leopard 2A6.
USA video by Christian Marquardt, Ukraine’s T-84 joins NATO tanks from Austria, France, Germany, Poland, Sweden, United Kingdom, United States, in a shoot-out. It is hard to see because of the smoke, but the T-84 is the small one:
USA video by Kevin S. Abel, new track pad installation on T-84:
March 2018, T-64BV at the Yavoriv Combat Training Center.
New York ANG video, I had to edit out the extremely boring narration (no audio), and edit just to show the T-64BV:
Leclerc versus T-64BV at Strong Europe Tank Challenge, May 2017. The USA photographer incorrectly identified this T-64BV as a T-64BM (Bulat upgrade).
Ukrainian Defence Ministry video about the evolution of the T-64:
New Cold War: RUSSIA STOCKS-UP ON VEHICLES FOR NAVAL GROUND FORCES
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Vehicle I-D: Don’t confuse T-84 with M84, SLOVENIJA M84A4 SNIPER, 2021