Coil spring: a helical metal spring used in vehicle suspension to absorb shocks and maintain wheel contact, compressing under load.

Type of internal combustion engine fuel, refined from crude oil.

High-Explosive Fragmentation: ammunition that explodes on impact, releasing fragments.

High-Explosive Anti-Tank: a type of projectile that uses a shaped charge to penetrate armor.

A tank with heavy armor and firepower, prioritizing protection over mobility.

Manual: a tank transmission in which the driver selects gear changes manually, typically using a clutch pedal and gear lever to engage gears.

A rifled gun has spiral grooves cut into its barrel.