they are positioned around the same level as the headlights
2006-12-05 20:15:42 · 4 answers · asked by Andy G 1 in Cars & Transportation ➔ Maintenance & Repairs
A flat-fronted truck has poor aerodynamic properties - both for drag and stability.
The "ducts" on the corners are actually a form of spoiler, that smooth the airflow around the corners of the truck, improving its stability, making it less likely to be blown off-course by turbulent air (either from the wind, or caused by other vehicles).
2006-12-07 00:11:27 · answer #1 · answered by Neil 7 · 2⤊ 0⤋
Could be for cooling air for the brakes, air intake for ventilation etc.
If you're thinking of those curved plates which stand proud of the corners of the cab, they're supposed to help airflow around the outside cab.
Hope that helps.
2006-12-06 04:21:08 · answer #2 · answered by champer 7 · 1⤊ 0⤋
They're for the brakes. Because of the sheer effort they have to provide, they are either water or oil cooled to avoid them overheating. The ducts you mention are to divert cool air to the brakes and associated radiators (lorries have several radiators, not just one big one).
2006-12-06 06:37:29 · answer #3 · answered by Steven N 4 · 0⤊ 1⤋
Either the designer thought they looked nice or it is to get cooling air to the brakes or engine!
2006-12-06 04:18:57 · answer #4 · answered by Rob S 3 · 0⤊ 1⤋