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Cortedivoire

Elder Lister
Heavy trucks, like long haul tractors, have a spoiler on the top of the cab in order to lessen drag caused from air resistance from the trailer it is towing, which may be taller than the cab and reduce the aerodynamics of the vehicle dramatically without the use of this spoiler.
The under-side spoilers angle outward to deflect passing air away from the rear axle's wheels
 

Meria

Elder Lister
Staff member
Heavy trucks, like long haul tractors, have a spoiler on the top of the cab in order to lessen drag caused from air resistance from the trailer it is towing, which may be taller than the cab and reduce the aerodynamics of the vehicle dramatically without the use of this spoiler.
The under-side spoilers angle outward to deflect passing air away from the rear axle's wheels
Explain to @The.Black.Templar how they help reduce fuel consumption kabla akuje na theory zake za Pluto
 
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