ST-66

Premium Medium Tank Tier 8 USSR

ST-66 is a tier 8 medium tank from USSR in World of Tanks. This is a premium vehicle — purchased separately from the tech tree.

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ST-66 stats at a glance

The ST-66 has 1040 hit points , 120mm of frontal hull armor , and a top speed of 50 km/h. Its strongest gun configuration deals 300 damage per shot with 217mm of armor penetration , giving it a theoretical maximum DPM of 2196.

Hull & survivability

Hit points (HP)1040
Weight18.6 t
Hull armor (F / S / R)120 / 60 / 45 mm

The front-to-side armor ratio is 2.0:1. This pronounced angling makes the ST-66 significantly stronger when keeping its front facing the enemy.

Mobility

Top forward speed50 km/h
Top reverse speed16 km/h

Forward-to-reverse speed ratio is 3.1:1. Reverse speed is limited, so pre-aim and exposure timing matter more on this vehicle.

Camouflage

Camo (stationary)23.6%
Camo (moving)17.7%

Available guns (1)

Gun Tier Damage Pen Reload RoF
100 mm T-12 (a) 8 300 217mm 8.2s 7.32

With the top-tier gun, the ST-66 can theoretically output up to 2196 damage per minute at sustained fire (shot damage × rounds per minute).

How ST-66 compares to its peers

There are 101 tier 8 medium tanks in WoT, including the ST-66. Its 1040 HP places it in the top 85% for hit points among same-tier medium tanks (peer average: 1086). Frontal hull armor of 120mm ranks in the top 11% for the class (peer average: 86mm). Top forward speed of 50 km/h is faster than 22% of peer vehicles in this tier and class. The strongest gun deals 300 damage per shot, higher than 58% of comparable vehicles. Best penetration of 217mm puts it in the top 31% for armor-piercing capability in its class.

Direct comparisons

Related tier 8 medium tanks

Understand the stats

Want a deeper grasp of what these numbers actually mean in battle? Read the glossary:

About this vehicle

Blueprints for the NST (noviy sredniy tank or new medium tank) were completed in 1966. One distinctive feature of the vehicle was its four-loop chassis with a drive for each loop. The transmission allowed the amount of power transferred to each track loop to be regulated. The project remained in blueprints.

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Frequently asked

What tier is the ST-66 in WoT?

The ST-66 is a tier 8 medium tank from USSR.

How much damage does the ST-66 do?

The top gun on the ST-66 deals 300 damage per shot with 217mm of standard armor penetration.

Is the ST-66 a premium tank?

Yes — the ST-66 is a tier 8 premium medium tank in WoT. Premium vehicles earn bonus credits and XP and don't require crew retraining.

What's the top speed of the ST-66?

50 km/h forward, 16 km/h reverse.

How much armor does the ST-66 have?

Hull armor: 120mm front, 60mm side, 45mm rear.