[Glossary](/glossary.md)/[Mobility](/glossary/category/mobility.md)

# Engine power

The engine's output in horsepower, which only means something next to the weight it has to move.

Also known as horsepower, hp engine.

A 700 horsepower engine is enormous in a 25 tonne medium and unremarkable in a 70 tonne heavy. The figure is therefore always read as [power-to-weight](/glossary/power-to-weight.md).

The engine is also a [module](/glossary/module.md): damaged, it loses power, and destroyed it leaves the vehicle stationary, which is why engine hits on a front-mounted engine are so punishing.

## Related terms

[Power-to-weightEngine horsepower divided by the vehicle's weight in tonnes, the single best predictor of acceleration.](/glossary/power-to-weight.md)[WeightThe vehicle's mass in tonnes, which sets its power-to-weight ratio and decides who wins a collision.](/glossary/weight.md)[Engine fireA fire started by a hit on the engine or fuel tanks, which drains hit points and damages modules until it is put out.](/glossary/engine-fire.md)[Critical hitDamage to a module or a crew member, which degrades what a vehicle can do without necessarily costing it hit points.](/glossary/critical-hit.md)

[Every World of Tanks term](/glossary.md)

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