Reducing air drag equates to: increased
engine performance, less mechanical wear and tear and substantial
fuel savings. Bottom line - more economical truck operation.
Air deflectors cut down wind resistance,
ensuring better road traction and more stability on the
road, and providing more comfort and safety for the driver.
Air deflectors also provide opportunity for signwriting.
Three major factors affect the amount
of aerodynamic drag on any vehicle: it's speed, size and
shape. Independent studies have determined that at 110 kph
it took 186 horsepower for a large truck and trailer unit
to move. Aerodynamic drag used 52 percent of power (or 97
horsepower). [ref: Freightliner Study]